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106 Rev 11 Dec 2017
Tricel® Novo UK6-50
Wastewater Treatment Plants
Engineering a green future
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Contents
1 Health & safety precautions .................................................................................................................................5
1.1 General .............................................................................................................................................................5
1.2 Electrical / maintenance...............................................................................................................................5
1.3 Installation .......................................................................................................................................................5
2 Introduction: Tricel Novo ..................................................................................................................................... 6
2.1 Treatment stages .......................................................................................................................................... 6
3 Tricel Novo range .................................................................................................................................................... 7
3.1 Dimensions ...................................................................................................................................................... 7
3.2 Tank drawings ................................................................................................................................................8
3.3 Pumped outlet ............................................................................................................................................. 11
3.3.1 Standard pump specification: .............................................................................................................. 12
3.3.2 Outlet connection: .................................................................................................................................. 12
4 Transportation & lifting ....................................................................................................................................... 13
4.1 Lifting tanks of 1-4 modules (Max. 4.6m) ............................................................................................. 13
4.2 Lifting tanks of 5-6 modules (Max. 6.6m) ............................................................................................. 14
5 Installation
.............................................................................................................................................................. 15
5.1 Installation planning ................................................................................................................................... 15
5.2 Inspection opon reception of tanks........................................................................................................ 15
5.3 Positioning and precautions ..................................................................................................................... 15
5.4 Types of installation .................................................................................................................................... 16
5.5 Installation procedure ................................................................................................................................ 17
5.5.1 Excavation (Dry & Wet sites) ................................................................................................................ 17
5.5.2 Installation – step by step guide ......................................................................................................... 19
5.6 Gravel specification .................................................................................................................................... 20
5.7 Concrete specification ................................................................................................................................ 21
5.8 Topsoil requirements.................................................................................................................................. 21
5.9 Risers .............................................................................................................................................................. 22
5.10 Non-standard installations ...................................................................................................................... 23
5.10.1
Alternative to concrete backfill (for wet sites without risers only)
................................ 23
5.10.2 Sloping ground .................................................................................................................................. 23
5.10.3 Proximity to rolling & static loads ................................................................................................ 23
5.11 Electrical requirements.............................................................................................................................. 24
5.11.1 Electrical Diagrams ............................................................................................................................ 25
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5.12 Additional accessories ............................................................................................................................... 30
5.12.1 Grease trap .......................................................................................................................................... 30
5.12.2 Sampling chamber ............................................................................................................................ 30
6 Plant operation ..................................................................................................................................................... 30
6.1 Diffuser-manifold calibration (only applicable on plants UK18 and greater) .............................. 31
6.2 Timed sludge-return system (only applicable to plants UK18 and greater)................................. 31
7 Disposal of treated water ................................................................................................................................... 32
8 Maintenance .......................................................................................................................................................... 32
8.1 Regular maintenance ................................................................................................................................. 32
8.2 Annual maintenance .................................................................................................................................. 32
8.3 Annual service (available from your supplier) ....................................................................................... 32
8.4 Production of sludge ................................................................................................................................. 33
8.5 De-sludging (emptying the solid waste from the primary chamber) ........................................... 33
9 Operating conditions ........................................................................................................................................... 33
10 Troubleshooting .............................................................................................................................................. 35
10.1 Plant operation ........................................................................................................................................... 35
10.2 Odours ........................................................................................................................................................... 37
11 Certification ...................................................................................................................................................... 37
11.1 Declaration of performance ..................................................................................................................... 38
12 Terms & conditions .......................................................................................................................................... 41
Important
This manual must be used in conjunction with British Water’s ‘Flows and Loads’ when sizing
wastewater treatment plants.
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1 Health & safety precautions
It is important to read the full technical manual prior to installation. Retain this document for the
lifetime of the product and in the event of a change of ownership of the site, transfer to the new owner.
As health and safety are of vital importance, the following aspects are critical:
1.1 General
•
Ensure the adherence to all the information contained in this manual at all times.
•
Treated wastewater is not suitable for human consumption.
•
It is important that locks are fitted to the lid to prevent accidental access.
•
Manholes are rated to 125kg and are for pedestrian use only.
•
Never enter a tank, unless qualified to do so.
•
Do not use naked flames in the vicinity of the tank due to the danger of combustion.
•
The manhole access covers shall never be left off an unattended tank. Following the
completion of any work carried out, always lock the access covers of the plant.
•
Sewage and sewage effluent can carry micro-organisms and gases harmful to human
health. Any person carrying out work on the plant must be trained appropriatly. Suitable
protective clothing; including gloves, goggles should be worn at all times. Always remove
contaminated clothing and protective equipment after working with sewage treatment
plants. Wash hands and face before eating, drinking or smoking.
•
All manhole access covers must be kept locked for safety reasons. Tanks are supplied with
three locking points, as shown below. All locking points should be locked with a suitable
locking device to prevent unauthorised access. Locking devices do not come supplied.
1.2 Electrical / maintenance
•
All electrical work to be carried out by a qualified electrician using suitable materials
for the application.
• Do not open the Tricel
Novo
air-blower housing without first isolating the mains power.
•
Electrical work must be carried out strictly to the manufacturer’s instructions and comply
with the relevant national regulations for electrical installations.
•
When working with machinery / electrical equipment, the proximity of water shall be
noted. Electrical
equipment shall not be wet when working with it.
•
There is the potential danger of falling into the tank during de-sludging when utility holes
may be open – take all necessary safety precautions when de-sludging.
1.3 Installation
•
Plan excavation work with due regard to health and safety requirements.
•
Excavated material should either be shored or battened back to a “safe” angle.
•
Use appropriate lifting equipment.
•
Take necessery care around ground-work machinery.
•
Keep proper footing and balance at all time.
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• Installations that require 500mm or 750mm risers require a concrete installation. It is not
possible to retrofit 500mm & 750mm risers to tanks with gravel installations.
2 Introduction: Tricel Novo
Tricel Novo wastewater treatment plants are manufactured from Sheet Moulding Compound
(SMC) ensuring a durable and strong product.
SMC is a fiberglass-based compression moulded
material used in applications that require high strength and durability. Lightweight and
compact
design facilitate ease of installation for domestic and light commercial applications up to 50 PE.
The Tricel Nov gets manufactured in modular components; the individual modules are fabricated
together to make various sized tanks.
2.1 Treatment stages
1. Wastewater from the dwelling, toilets, sinks, shower and further domestic sources enter the
plant.
2. The effluent enters the primary settlement chamber. Settlement occurs when the heavier solids
drop out of the wastewater and settle to the bottom of the tank to create sludge, and the lighter
solids float to the top of the water to create a scum. The top layer acts as a seal and stops
odours escaping. This chamber separates up to 70% of the solids present.
3. Next is the aeration chamber, where masses of naturally occurring bacteria inhabit specially
designed plastic filter media. The bacteria feed on the waste removing it from the liquid. A
continuous supply of air from the low pressure, high volume compressor in the top section of
the unit sustains these bacteria. Wastewater passes through the filter media repeatedly,
ensuring a very high treatment efficiency.
4. The wastewater then proceeds to the final settlement chamber. Any remaining minute bacterial
particles separate from the wastewater within this chamber before discharge from the plant.
This process slows the liquid’s velocity, allowing for any final trace impurities to settle to the
bottom of the tank. A sludge return system then returns these impurities to the primary
settlement chamber.
5. The remaining treated wastewater now meets the required standard and is safely passed out
of the Tricel Novo plant. The treated effluent is now ready for discharge to a suitably designed
discharge area as required by the relevant local authority.
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3 Tricel Novo Range
3.1 Dimensions
Tricel Novo wastewater treatment plants: certified to EN 12566-3:2005
Tricel Novo
UK6
UK8
UK10
UK12
UK18
UK24
UK30
Max. Population Equivalent
PE
6 8 10
12
18
24
30
Design flow rate (max.)
litres/day
900
1200
1500
1800
2700
3600
4500
BOD load (max.)
kg/day
0.36
0.48
0.6
0.72
1.08
1.44
1.8
No. of persons
1-6
3-8
4-10
4-12
6-18
8-24
10-30
Primary chamber capacity
litres
1485
1934
2178
2300
2552
3498
3930
Nominal inlet/outlet diameter
mm
110
110
110
110
110
150
150
Overall length
m
2.1
2.6
3.1
3.6
4.6
5.6
6.6
Overall width
m
1.64
1.64
1.64
1.64
1.64
1.64
1.64
Overall height
m
2.24
2.24
2.24
2.27
2.27
2.27
2.27
Inlet invert to base
m
1.375
1.375
1.375
1.375
1.375
1.35
1.35
Outlet invert to base
m
1.3
1.3
1.3
1.3
1.3
1.3
1.3
Inlet invert to ground level
m
0.535
0.535
0.535
0.535
0.535
0.56
0.56
Outlet invert to ground level
m
0.61
0.61
0.61
0.61
0.61
0.61
0.61
Height above ground level
m
0.33
0.33
0.33
0.36
0.36
0.36
0.36
Weight empty**
kg
270
300
370
400
500
600
700
Air-Blower (50Hz)
W
64
86
86
100
215
215
215+86
De-sludge period (minimum)***
year
1-3
1-3
1-3
1-3
0.5-2
0.5-2
0.4-1
Thickness (minimum)
mm
5 5 5 5 5 5 5
Retention time
hours
83
78
76
74
64
59
56
*Tanks may require a stepped foundation, with “Tank B” lower than “Tank A” by 100mm approx.
**Allow 100kgs extra for lifting purposes.
*** Depending on use.
Tricel Novo
UK36*
UK42*
UK50*
Tank A
Tank B
Tank A
Tank B
Tank A
Tank B
Max. Population Equivalent
PE
36
42
50
Design flow rate (max)
litres/day
5400
6300
7500
BOD load (max)
kg/day
2.16
2.52
3
No. of persons
13-36
14-42
16-50
Primary chamber capacity
litres
4808
5963
5963
Nominal inlet/outlet diameter
mm
150
150
150
150
150
150
Overall length
m
2.6
5.6
2.6
6.6
3.6
6.6
Overall width
m
1.64
1.64
1.64
1.64
1.64
1.64
Overall height
m
1.99
2.27
1.99
2.27
1.99
2.27
Inlet invert to base
m
1.35
1.35
1.35
1.35
1.35
1.35
Outlet invert to base
m
1.3
1.3
1.3
1.3
1.3
1.3
Inlet invert to ground level
m
0.46
0.56
0.46
0.56
0.46
0.56
Outlet Invert to ground level
m
0.51
0.61
0.51
0.61
0.51
0.61
Height above ground level
m
0.18
0.36
0.18
0.36
0.18
0.36
Weight empty**
kg
300
600
300
700
400
700
Air-Blower (50Hz)
W
215 + 86
215 X 2
215 X 2
De-sludging period (minimum)***
year
0.4-1
0.4-1
0.4-1
Thickness (minimum)
mm
5 5 5 5 5
5
Retention time
hours
57
55
51
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3.2 Tank drawings
The arrow indicates a compartment which it is necessary to empty when de-sludging the plant.
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Two-tank Tricel Novo plants require a stepped installation:
3.3 Pumped Outlet
• All Tricel Novo tanks are available with a pumped outlet option. The pump is housed in the
final settlement chamber of the plant.
• A non-return valve installed on the pumped outlet will prevent backflow into the plant.
• Outlined below is the standard pump specification. Other pump options are available to
customer specifications if required; please contact your Tricel Novo supplier.
• Min. discharge rate: 60 l/min
• Continuous duty with 35°C
liquids & fully submerged.
• Dry motor (class F
insulation).
• IP68 protection.
• Single phase 220-240V 50 Hz
2 poles.
• 0.55kW for single phase.
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3.3.1 Standard pump specification:
3.3.2 Outlet connection:
The Tricel Novo pumped outlet plant has a 50mm end-connector compression fitting which is
positioned on the turret of the Tricel Novo. 50mm OD MDPE black piping must be connected to this
end-connector compression fitting to transfer the treated wastewater to the discharge point.
0
1
2
3
4
5
6
7
0 50 100 150 200 250 300
Head (metres (m))
Pumping distance (metres (m))
50mm OD MDPE Black Pipe
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4 Transportation & lifting
•
Tanks must be held down during transportation using nylon straps, do not use cables
or chains to secure tanks. Do not over tighten straps that can result in deformation of the
tank shell. Do not drop or roll tanks from the truck.
•
Move tanks only by lifting and setting, do not drag or roll.
• Always set the tank(s) on flat, smooth ground clear of any debris. Tanks may need to be tied
down and chocked to prevent movement. Position the chocks in the locations shown below:
•
It is best to lift tanks by a machine and webbing lifting straps – do not use chains or wire ropes
in contact with the tank.
•
Ensure tank is empty when lifting.
•
Care is needed to control the lift so as to ensure the tank is not damaged.
•
Ensure the slings are positioned at a joint on the tank, firmly secured, and the load is
evenly balanced.
4.1 Lifting tanks of 1-4 modules (Max. 4.6m)
• Tanks up to 4.6m in length should be lifted using the eyebolts on the tank.
• Tanks up to 4.6m in length can be lifted using only lifting straps, as shown in
Option 1
, next
page. However, on sites where lifting height is restricted, a lifting bar should be used as
shown in
Option 2
:
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4.2 Lifting tanks of 5-6 modules (Max. 6.6m)
•
Tanks which are greater than four modules (4.6m) in length should be lifted using the slings
provided as depicted per
Option 3
, shown below. However, on sites where lifting height is
restricted, a lifting bar should be used as shown in
Option 4:
Note: To ensure the angle of the sling is not greater than 60o, as per
Option 1
above, the following
sling lengths are required:
Length of tank
Minimum length of sling
2.1 2.1 2.6 2.6 3.1 3.1 3.6 3.6
4.6 4.6 5.6
5.6
6.6
6.6
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5 Installation
5.1 Installation planning
Important
Prior to the installation of the Tricel
Novo
, it is important to read these installation instructions
carefully.
• When planning the installation of a Tricel Novo plant, consider the following:
Backfill considerations:
o Is this a dry or wet site, i.e., the presence of a water table?
o Which backfill material is appropriate for this site?
o What are the finished ground level and will risers be required?
Note: Installations that need 500mm or 750mm risers require a concrete installation. It
is not possible to retrofit 500mm & 750mm risers to tanks with gravel
installations.
Site considerations:
o Is the site restricted regarding area or height?
o What is the topography of the site, i.e., being it sloping or flat?
o What is the proposed depth of the installed tank to ensure the required slope
upstream?
o Are static or rolling loads present on this site?
• Only suitably qualified personnel should install the Tricel Novo.
• Suitably sized equipment will be required to excavate the hole and to lift the
Tricel Novo
into place.
5.2 Inspection opon reception of tanks
•
Visually inspect tanks for damage such as fractures to the shell or ribs, de-laminations,
scratches, or abrasions deeper than 1.5mm, which may have occurred during transport,
before installation. Notify the delivery driver and your supplier of any damage. Do not
attempt to carry out any unauthorized repairs, as this will invalidate the warranty on the tank.
•
Once tank installation is complete, Tricel cannot accept any claims for damage.
5.3 Positioning and precautions
• Do not undertake the installation of the Tricel
Novo
in an area subject to flooding or excessive
water runoff as no flood waters should enter the tank.
• The area around the Tricel
Novo
should be adequately drained, to permanently remove ground
water and surface water from the proximity of the tank.
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• The Tricel
Novo
is not suitable to be used in water logged sites, where the ground water may
rise above the inlet invert pipe.
• When selecting the location of the Tricel
Novo
, ensure that it is always accessible for future
maintenance.
5.4 Types of installation
All installations must be “fit for purpose” to suit the on-site conditions, which will vary from site to site
and is the responsibility of the onsite contractor.
When installing a Tricel
Novo
, there are two possible installation methods:
1. Gravel installation
2. Concrete installation
It is necessary to consider two factors when determining which installation must to implement:
1. Is the Tricel
Novo
being installed in a ‘Dry site’ or a ‘Wet site’?
• A ‘Dry site’ is a site in which the water table never rises higher than the base of the
tank.
• A ‘Wet site’ is a site in which the water table may rise higher than the base of the
tank but will not rise higher than the invert of the inlet. Sites where a higher water
level is present, ensure that the installation is suitable for the site conditions.
Tricel
strongly advises the installation of a vertical water table inspection pipe. This
inspection pipe will facilitate convenient monitoring of the water table long after
the completion of the installation process.
Note: In difficult soils (e.g., clay with a high t-value), a site could be potentially
classified as wet if there is no drainage for surface water that enters the excavation
and it rises higher than the base of the tank. The installer must determine this when
selecting the correct backfill.
2. Is a riser installation required, and if yes, what height riser must you use? (For more
information on risers, please refer to section 5.9 ‘Risers’).
The following table specifies the required installation for on-site conditions:
Factors that determine the required installation
Installation required
Type of site
Riser required
Dry
None
Gravel
Dry
250mm
Gravel
Dry
500mm & 750mm
Concrete
Wet
None
Concrete
Wet
250mm, 500mm & 750mm
Concrete
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Important
•
Incorrectly installed tanks that are subject to movement, rotation or floatation may
become damaged, for which Tricel cannot accept liability.
•
During installation, do not subject tanks to buoyant forces.
•
Contact a qualified engineer if there are difficulties on site due to adverse water logging.
•
Ballasting the tank is important to avoid the tank from lifting when backfilling.
5.5 Installation procedure
5.5.1 Excavation (Dry & Wet sites)
Important
All excavation works must be done so under the strictest of supervision and in accordance with
all associated construction guide lines.
5.5.1.1 Excavation: Length & Width
Length and width of the excavation must exceed the dimensions of the
Tricel wastewater treatment
plant
by a minimum 500mm to maintain a minimum space of 250mm all around the tank.
Note: In gravel installations, it is imperative that the gravel backfill is thoroughly compacted to
maximise support for the tank and ensure that there will be no movement in the tank over
time.
Tricel Novo
Tank length
(m)
Tank width
(m)
Min. excavation size (L x W)
(m)
6
2.1
1.64
2.6 x 2.14
8
2.6
1.64
3.1 x 2.14
10
3.1
1.64
3.6 x 2.14
12
3.6
1.64
4.1 x 2.14
18
4.6
1.64
5.1 x 2.14
24
5.6
1.64
6.1 x 2.14
30
6.6
1.64
7.1 x 2.14
36
Tank A
2.6
1.64
3.1 x 2.14
Tank B
5.6
1.64
6.1 x 2.14
42
Tank A
2.6
1.64
3.1 x 2.14
Tank B
6.6
1.64
7.1 x 2.14
50
Tank A
3.6
1.64
4.1 x 2.14
Tank B
6.6
1.64
7.1 x 2.14
Note: The size of the area for excavation applies to both dry and wet sites. However,
unstable ground
with excessive sand, peat swamps, etc., may require larger excavations. The excavation should be
maintained dry by pumping or whatever suitable means.
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5.5.1.2 Excavation: Depth
The depth that the Tricel Novo must be installed is determined by the outlet pipe from the source
of the wastewater.
Please refer to section 5.9 ‘Risers’ to determine the maximum invert for the Tricel Novo.
Allowances
for maximum inverts must be made when the connecting sewer system is being designed by a qualified
individual. The
Tricel Novo
is not suitable where a deeper installation is required.
Outlined below, are the minimum distances (mm) that the excavation dimensions must exceed the
tank dimensions for both concrete and gravel installations. Please refer to section 3.1, ‘Dimensions’
to view all tank dimensions.
Note: Ground instability, e.g. running sand may necessitate over-excavation and stabilization with
hard core or blinding concrete.
Tank width (mm)
“a” minimum (mm)
“b” minimum (mm)
Dry Site
1640
250
250
Wet Site
1640
250
300
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5.5.2 Installation – step by step guide
Steps
Installation required
Gravel
Concrete
Installation
of the tank
base:
1
Remove any soft spots or large stones and boulders.
2
A 250mm layer of suitably compacted
gravel forms the base.
A 50mm layer of suitably compacted gravel,
covered with a 250mm layer of semi dry
concrete forms the base.
3
Ensure that base is level and at the correct height to accommodate the incoming pipe
work.
4
It is important to maintain a completely dry
excavation until the final pour of concrete
becomes set. It may be necessary to line the
excavation with a continuous layer of 1200gauge polythene to maintain the integrity of
the concrete.
Positioning
the tank
onto the
base:
5
Mechanically lift the plant carefully into
the centre of the hole and place on the
prepared base.
Mechanically lift the plant carefully into the
centre of the hole before the concrete sets.
6
The plant must sit level on the base.
7
Connect and seal the pipe work to the tank.
Backfilling
around the
tank:
8
Ballast the plant by filling each chamber with clean water to a depth of 300mm and
recheck the pipe work levels.
9
Commence backfilling with gravel in
layers of 225mm evenly around the tank
ensuring that there are no voids until
gravel has reached 50mm over the
cylindrical body of the tank. Compact
each layer in succession. *
Commence backfilling evenly around the
tank, ensuring that there are no voids until it
has reached the invert of the outlet pipe.
Continue backfilling with gravel, until it has
reached 50mm over the cylindrical body of
the tank. *
Note
* Continue filling the chambers with water while backfilling, ensure that the progressive water
level is no more than 300mm above the backfill level.
10
Mount and seal manhole risers (if used). Please refer to section 5.9 ‘Risers.’
11
Complete backfilling with topsoil up to the max ground level. Allow for subsequent
settlement of topsoil.
Important
A competent person should complete the plumbing to, and from, the plant in accordance with
national regulations and best practices.
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5.6 Gravel specification
Primary backfill specification:
•
Primary backfill material should be free-flowing granular material.
•
Compaction should be by lightweight rollers or vibratory plate. Compact gravel evenly to
ensure proper support for the tank. Ensure the vibrating machine does not come in contact
with the shell of the tank.
•
Install tanks with primary backfill only within the region immediately surrounding the
tanks. This primary backfill must extend a minimum of 250mm outward from the tank, and
directly beneath the tank.
• Backfill material shall not be frozen or contain lumps of frozen material at any time during
installation.
• Use of other than specified backfill and bedding materials will void the tank warranty.
The following approved material is suitable for primary backfill:
Rounded pea gravel:
•
Minimum particle size 3mm, maximum 18 mm, compacted to a relative density of >70%.
•
Gravel shall be clean and free flowing, free from large rocks, dirt, sand, roots, organic
materials or debris.
•
Upon screening analysis, the backfill material shall have no more than 5% by weight
passing 2.36 mm sieve.
or
Crushed or processed stone:
•
Minimum particle size 3 mm, maximum 12 mm, compacted to a relative density of
>40%
• Dry Gravel density must be at least 1500 kg/m3. The material should be washed or screened to
remove fine particles.
• Upon screening analysis, the backfill material shall have no more than 5% by weight passing
2.36 mm sieve.
Pea Gravel Crushed Stone
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5.7 Concrete specification
Semi dry concrete 25n grade with a ratio of 4.5 aggregate to 1 cement.
Important:
• Standard concrete mixes should not be used, where sulphates or similarly aggressive
chemicals are present in the groundwater.
• Lift height (rate of rise): Determine the lift height (m), or rate of rise (m/h) for the specific
type of concrete used to ensure that you do not exceed the design pressure (P max) of
15kN/m2 on the tank.
• Vibration: The tank design assumes minimal compaction of the surrounding concrete.
Where necessary, this may be extended to include internal light vibration. Never use deep
reverberation which will substantially increase the pressure on the tank, possibly causing
failure.
• Impact of concrete on discharge: Under no circumstances should concrete be discharged
directly onto the tank.
5.8 Topsoil requirements
Clean native top soil shall not contain rocks larger than 36mm in the largest dimension.
Note:
The use of geo textile barrier fabrics surrounding the primary backfill material is considered
good installation practice. The fabric must be chosen to allow the flow of water in and out
of the excavation but to prevent the movement of fine soil particles into the primary
backfill material.
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5.9 Risers
If a Tricel Novo requires a deeper than standard installation in order to align with the
wastewater outlet pipe from the dwelling, manhole risers are available to facilitate this and to
avoid the access hatch being positioned in a depression, as shown in the diagram:
Risers are available in the following sizes:
•
250mm (requires installation suitable for the site conditions)
•
500mm (requires a concrete backfill) *
•
750mm (requires a concrete backfill) *
*
500mm or 750mm risers cannot be retrofitted unless the correct installation is in place.
•
The Tricel Novo is suitable for a maximum manhole riser of 750mm which facilitates the
following maximum inlet inverts:
o 110mm Inlet: 1285mm
o 150mm Inlet: 1310mm
•
The
Tricel Novo
is not suitable where a deeper installation is required.
Important:
• Never place the access covers below ground level.
• Only use
Tricel manhole access covers.
• Do not allow ground water or storm water to enter the Tricel Novo.
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5.10 Non-standard installations
5.10.1 Alternative to concrete backfill (for wet sites without risers only)
• The option of securing the Tricel Novo to a reinforced concrete slab or Deadman anchor
by way of straps may also be used, as shown below:
• Tricel accepts no responsibility for the design of the concrete slab/Deadman anchor.
This solution should be designed by an on-site structural engineer to suit site
conditions.
• Position the straps as close to the bolted joints as possible.
• Install the reinforced concrete slab/ Deadman anchor after lowering the level of the
ground water, if necessary.
• Once the straps have secured the Tricel Novo, the backfilling with concrete or gravel
can commence.
5.10.2 Sloping ground
When the slope of the ground is 5% or more, it is recommended to install a retaining wall to protect
the tank from the lateral thrust. Concrete backfill may also in some cases be sufficient to protect the
tank. A qualified structural engineer must determine if a retaining wall is required in the presence of a
steep slope as shown in the picture below:
5.10.3 Proximity to rolling & static loads
Minimum separation distances from:
• Rolling Loads (e.g., vehicle traffic): 4 metres
• Static Loads (e.g., dwelling house, shed): 3 metres
If installing the tank in an area where traffic or other superimposed loadings can be applied,
consult a structural engineer for the design of a reinforced concrete slab to prevent the
transmission of the load to the tank (or its concrete surround). If this slab is constructed
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immediately above the tank, separate it from the concrete surrounding the tank by a compressible
material.
5.11 Electrical requirements
Important:
•
Please ensure the electrical installation complies with all national regulations and
requirements.
•
Electrical installations must be carried out by a qualified electrician.
The customers’ minimum responsibility shall consist in the provision of:
• The power supply SWA cable must be suitably sized and comply with all national regulations
and requirements. The sizing of the cable is the responsibility of a qualified electrician.
Note: In typical domestic installations,
a single run of 1.5mm² three core (two conductors plus
earth conductor) steel wire armoured (SWA) cable is required from the customer’s
distribution cabinet to the tank unit socket box.
•
Cable protection via 10-amp MCB protected by (RCD), rated 230V, 30mA.
•
The cable armour to the main earth must be properly bonded.
•
Never disconnect the power to the air blower. It is imperative that it be running 24 hours a day,
every day.
• If you require a riser at a later date, the qualified electrical must supply an additional 1m of the
power supply SWA cable. This additional length of cable should be coiled and hung underneath
the manhole access cover as shown in the following image.
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5.11.1 Electrical Diagrams
5.11.1.1 Tricel Novo – Gravity Outlet
UK6, UK8, UK10, UK12 (Control Panel No. 209102)
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UK18, UK24(Control Panel No. 209116)
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27
UK30, UK36, UK42, UK50(Control Panel No. 209111)
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5.11.1.2 Tricel Novo – Pumped Outlet
UK6, UK8, UK10, UK12, UK18, UK24(Control Panel No. 209101)
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UK30, UK36, UK42, UK50(Control Panel No. 209112)
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5.12 Additional accessories
5.12.1 Grease trap
• Fit the grease trap before the
Tricel Novo as best practice indicates, particularly in applications
where high quantities of grease/oil exist in the wastewater.
•
The grease trap must be monitored on a regular basis and emptied when required so as to
ensure continued effective performance.
5.12.2 Sampling chamber
•
Best practice indicates that a sampling chamber is fitted after every
Tricel
Novo to allow
easy access for sampling purposes.
• Care should be taken to ensure that the sampling apparatus does not come into contact with
the pipework or walls of the sampling chamber to avoid contamination of the sample.
•
The inlet of the sampling chamber must be higher than the outlet to facilitate the sampling
cup.
6 Plant operation
Once tank installation, plumbing and the electrical connection are complete, the Tricel Novo is now
operational. The plant should be filled with water during installation. If yo u ha ve not, it should be
filled before its first use. If the plant is running correctly, y ou w ill h ear a slight “hum” from the
air blower, and there will be air bubbles coming up evenly from the bottom of the aeration chamber,
rising to the surface.
Once i ns t a l l at i o n o f the Tricel Novo plant i s co m pl et e and it i s operational, it is important
that it be commissioned by our service team or a Tricel Novo distributor to ensure it is working
effectively. A commissioning certificate will then be issued to the customer.
The plant runs 24 hours a day, seven days a week all year round for optimum purification. In periods
of low occupancy, the sludge return system re-circulates the liquid in the plant ensuring continuous
performance. In periods of overload the sludge re tur n p la nt p ass e s the l i q ui d ba ck i nt o t he
pr i m a ry c h am b e r , so it p a s s e s t hro ugh the aeration chamber agai n ensuring continuous
performance. It may take up to 13 weeks for the biomass to become fully established and to reach
optimum purification. All plants come fitted with an alarm, which will alert of
irregularities
in the plant.
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6.1 Diffuser-manifold calibration (only applicable on plants UK18
and greater)
Plants come supplied with the manifold valves in the fully open position as shown in the following
image.
The valves on the manifold may require adjusting during installation and subsequent services in order
to distribute the air evenly among the diffusers.
Warning
• Each valve must not be closed more than 50% as this will result in irreparable damage to
the air-blower.
• Only Tricel approved personnel should make adjustments to the diffuser-manifold.
6.2 Timed sludge-return system (only applicable to plants UK18 and
greater)
The timed sludge-return system is set to operate for 15 mins followed by a rest period of 1 hour 45
mins.
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7 Disposal of treated water
Dispose of the treated wastewater from the Tricel Novo as per guidelines from the planning
regulations issued by your local authority.
8 Maintenance
Warning
Any maintenance carried out inside the tank represents a confined space. Therefore, the
maintenance person must be suitably trained to work in confined spaces. Sewage and sewage
effluent can carry micro-organisms and gases harmful to human health. Any person carrying
out maintenance of the plant must be trained approprately. Wear suitable protection
equipment including gloves, goggles, etc. at all times. Always remove contaminated clothing
and protective equipment after completion of work. Wash hands and face before eating,
drinking or smoking. Please refer to section 1 ‘Health & Safety Precautions.’
A certain amount of plant maintenance is required on an on-going basis to ensure that the plant
is working correctly, and this is the responsibility of the homeowner.
8.1 Regular maintenance
•
The vent around the base of the blower housing guarantees a fresh supply of air to the air
blower. All vents should be checked to make sure they are not blocked or obscured.
• The vent under the de-sludging cover allows gas to escape and stops the tank from becoming
pressurized.
•
Ensure the air blower is working by listening for a gentle hum when standing beside the plant.
•
The inlet and outlet should be inspected and rodded to remove any blockages if necessary.
8.2 Annual maintenance
•
The
Tricel
Novo will require a full service (available from your supplier) every year to
guarantee the maintenance of the efficiency of the plant. You must accommodate service
personell with clear access to the tank.
8.3 Annual service (available from your supplier)
During routine servicing, the service technician will perform a series of checks and procedures:
Checks:
• The air-diffuser is monitored to check for sufficient dispersion of air.
• The sludge return system is functioning correctly.
• The covers and locks are in place and good condition.
• General appearance and condition of the treatment plant are good.
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Procedures:
• The blower is tested.
• The blower filter is replaced.
• The plant alarm is tested.
• The pump and float-switch are tested (If applicable).
• The vents are cleared of any blockages.
• The sludge level in the primary chamber is measured.
• The diffuser manifold is adjusted if required (If applicable).
8.4 Production of sludge
Important
•
The de-sludging of the
Tricel
Novo is the responsibility of the homeowner.
•
There is the potential danger of falling into the tank during de-sludging when
manholes may be open – take all necessary safety precautions when de-sludging.
•
Do not allow machinery/traffic drive over the plant. Maintain a distance of at least 4
metres away from the covers on the Tricel Novo.
•
The access cover should never be left off an unattended
Tricel
Novo.
When the sludge is occupying 50% of the volume of the primary chamber de-sludging is required,
this is necessery when the sludge is 700mm deep. For de-sludging periods, which depends on the
occupancy of the dwelling, please refer to the table in section 3.1 ‘Dimensions.’ Carry out desludging with a vacuum tanker (Tricel recommend the use of a licensed company).
8.5 De-sludging (emptying the solid waste from the primary
chamber)
• Remove the de-sludging access covers.
•
Empty the
Tricel
Novo using a vacuum tanker. Ensure the removal of the solids with the
liquid.
•
Care must be taken not to damage the
Tricel
Novo with the hose of the vacuum tanker.
•
Replace the de-sludging access cover securely.
9 Operating conditions
Warning
Tricel shall not be liable for any damage or loss, including consequential loss, caused by the
failure of any plumbing equipment or failure caused by the inclusion of prohibited
material in the plant.
The manufacturer’s installation, operation and maintenance instructions outlined in this manual
must be followed at all times to ensure the plant operates as designed. Any variations to these
conditions could result in the unit not performing to its full potential, and the discharge may not
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meet the required standards.
The property owner has a legal responsibility to ensure that the
plant does not cause pollution, a health hazard or nuisance
•
De-sludging is a critical part of the successful operation of the
Tricel
Novo
and is the
responsibility of the customer.
•
Only competent approved personnel should carry out de-sludging.
•
De- sludging must be carried when required as specified, and the plant should by
regularly inspected to check the depth of sludge in the primary chamber. If de-sludging
is required, carry it out as soon as possible.
•
It is necessary to maintain an electrical connection to the plant for it to function correctly,
this ensures that the
plant has a continuous air supply and where necessary the discharge
pump will operate.
•
The
Tricel
Novo
is one part of the overall wastewater treatment system, which includes
many components (plumbing, ventilation, plant and polishing filter. Each component
has to function correctly for the overall system to work which is the responsibility of
the homeowner.
•
If the plant installation is carried out incorrectly, flooding, overloading, electrical shock or
floatation might occur. Tricel
is not responsible for incorrectly installed plants.
•
Soakaways, drains and the emptying of the primary chamber remains the responsibility of
the client. The manufacturer does not cover damage to the installation due to the influx of
surface water or the backing up of soak ways or drains.
•
To ensure the continuance of the
Tricel
Novo’s performance the user has to take certain
precautions including the
following:
o Do not exceed the design loading of the plant.
o High volume discharges such as those from swimming pools and Jacuzzi’s must never
enter the plant.
o Surface water must not enter the plant.
o Do not allow large quantities of chemicals to enter the plant including but not
limited to:
▪
Water softener
▪
Disinfectants
▪
Strong acids and alkalis, or photographic chemicals
▪
Oil or grease
▪
Petrol or diesel
▪
Pesticides
o Do not allow any of the following to enter the Tricel
Novo:
▪
Large quantities of milk, alcohol or food
▪
Large quantities of bleaches or cleaners
▪
Baby wipes, cosmetic and cleaning wipes
▪
Sanitary towels
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▪
Tampons
▪
Kitchen paper
▪
Nappies
▪
Medication
•
Service personel must be accomodated with clear access to the plant.
•
If others size the plant, Tricel will supply to these specifications. In this case, the
responsibility lies with others in relation to the maximum flow/litres per day, the plant
capacity and retention times. Similarly, if Tricel size the plant and a greater load is then
placed on the plant by the addition of extra houses, bedrooms, schools, crèches, etc. or by
other means, Tricel is not responsible for the plant overloading or the quality of effluent as
the retention times may be compromised.
•
Should the plant be used intermittently or if extended periods of non-use are expected,
it is recommended that the plant remains on and in operation. The contents of the
plant should not be allowed to turn septic due to non-use.
•
The tank is not suitable for vehicular traffic. Tricel also recommends fencing off the area to
prevent livestock
herds from accessing the p l an n t. Where possible, unnecessary human
traffic around the
plant should be avoided.
• The Tricel Novo is only suitable for human faeces. No animal faeces must enter the
plant.
10 Troubleshooting
Properly installed, operated and maintained plants will give many years of trouble free service. All plants
are fitted with an alarm, which will alert to irregularities in the plant. If a blower or pump stops working
a buzzer will sound to indicate there is a problem with the plant. The buzzer can be muted until the
problem is fixed. Once fixed, the alarm will reset automatically and the mute switch must be turned off.
All electrical work shall be carried out by a certified electrician.
10.1 Plant operation
Symptom
Possible causes Solution
Blower/Pump will not
start or run
Fuse blew (if applicable).
Replace with a fuse of suitable size.
Tripped breaker.
Reset breaker.
Low line voltage and wet
electrics.
An electrician should check the power supply to
the plant.
Defective blower/pump.
Blower/pump must be checked by a qualified
person.
Thermal overload
protection triggered by
high ambient temperature.
Allow the blower time to cool. The blower will
automatically restart when cooled sufficiently.
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Blower operates but
delivers no air
Low line voltage or wired
incorrectly.
An electrician should check the power supply to
the plant.
Filter blocked. Replace filter.
Diaphragm damaged/torn
(If applicable).
Replace damaged diaphragm.
Defective blower
malfunction.
Air blower must be checked by a qualified
person.
Plant fills above
working water level
Subsurface disposal plant
clogged.
Contact installer to repair sub surface disposal
plant/ percolation area.
Storm water flooding.
Redirect storm water drains. Storm water must
never enter the plant.
Discharge hose/pipe
blocked.
Find blockage and remove or replace damaged
hose/pipe.
Pump operates but
delivers no water
Low line voltage or wired
incorrectly.
An electrician should check the power supply to
the plant.
Something caught in
impellers.
Clean out impellers or replace the pump. Ensure
pump is disconnected from the mains before you
attempt to unclog it.
Delivery hose blocked.
Find blockage and remove or replace the damaged
hose.
Other.
The pump must be checked by a qualified person.
Blowers runs
intermittently
Thermal overload tripped.
Protect installation from the sun.
Air supply vent blocked, clean if necessary.
Filter blocked, replace if necessary.
Discharge hose blocked or kinked, remove the
obstruction.
Electrical fault.
Get a qualified person to check that the alarm is
installed correctly and the power supply to the
plant is correct.
Diaphragm damaged/torn
(If applicable).
Replace damaged diaphragm.
Pump runs
intermittently
Thermal overload tripped.
Check for clogged impeller (WARNING: Ensure the
pump is plugged out before you attempt to unclog
it.)
The pump has run dry so add water.
Float from the pump stuck.
Ensure the float on the pump is set correct and can
move freely.
Damaged float.
The pump must be checked by a qualified person.
Alarm is sounding, but
the pump and blower
are working
Air return pipe to the alarm
not returning an air signal.
Check that the air pipe is not damaged or bent.
Ensure there is air blowing through this pipe. Check
that the pipe is inserted into the alarm correctly.
Electrical fault.
Get a qualified person to check that the alarm is
installed correctly.
The electrical panel is wet.
Get a qualified person to check that the alarm is
installed correctly.
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Note:
Before taking any corrective action, always positively identify the real source of the odour. Check
if the odour is coming from another outside source such as a storm drain. All Tricel Novos’ vent
gases back through soil pipe and out roof vents. Improperly installed roof vents can cause odour
problems. Traps in drains prevent odours from entering the home. To function, they must contain
water and be sealed correctly.
10.2 Odours
Symptom
Possible causes
Solution
Effluent odour directly
outside the house or
inside the house
Pipe connections to toilets
or drains not connected
correctly.
Check that the traps / U - bends in the drains
are fitted and the joints sealed.
An air vent on pipe-work
not fitted or fitted
incorrectly.
Ensure all effluent pipes are vented correctly,
vents are normally fitted to all pipes, and they
should be higher than the eve of the roof.
Pipe work is damaged or
blocked or fitted
incorrectly.
Inspect pipe work to ensure it is undamaged and
clear of obstructions or sagging.
Bad effluent odour
directly over the tank
Pipe work to or from the
tank is blocked.
Check the level of liquid in the tank. Ensure the
pipes are not blocked and are fitted correctly to
the tank.
Chemical kill of bacteria.
Ensure pumps are working properly (If
applicable). If the symptom persists for 48
hours or more, remove all liquid and replace
with clean water.
No air delivery Hydraulic/Organic is
overloading the tank vent.
Check blower is functioning properly
Note:
Smoke bombs/pellets, available from a plumber’s merchants, can be used to
trace the source the odour.
In accordance with our normal policy of product development, this specification is subject to change
without notice. (December 2017)
11 Certification
The Tricel
Novo
has successfully passed stringent European testing and is approved to the new
European standard EN 12566-3 Small wastewater treatment plants for up to 50 PT-Part 3: Packaged
and/or site assembled domestic wastewater treatment plants. The Tricel
Novo
was placed through a
rigorous 38-week test, by the certified laboratory PIA GmbH-Testing Institute for wastewater
technology in Aachen, Germany www.pia-gmbh.com.
The Tricel
Novo passed all structural testing (crush test & durability test) carried out by PIA staff.
Water tightness tests were performed by PIA at our headquarters on the range of tanks up to 50PE
and successfully passed all of the required tests.
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11.1 Declaration of performance
- Declaration of Performance
DOP01CPRUk03201414
1. Classification of Product:
Small wastewater treatment plant for up to 50PT – Packaged and/or Site Assembled
Domestic
Wastewater Treatment Plant as set out in EN12566 Part3
2. Name of Product:
Tricel Novo UK6 – UK50
3. Product Characteristics
Material
Glass Reinforced Plastic (GRP)
Technology
Submerged Aerated Filter combined with Activated Sludge
Shape
Horizontal Cylinder with domed ends. 620mm x 620mm and Ø200mm
Access openings as required.
4. Intended for Use:
To treat domestic wastewater for up to 50 population
equivalent
5. Name, Address and Contact Information of Manufacturer:
Tricel (Killarney).
Ballyspillane Ind. Est
.
Killarney,
Co. Kerry.
Tel: +353 (0) 64 6632421
Web:
www.ie.tricel.eu
6. Plant of Assessment of Verification as set out by the CPR, Annex V:
Plant 2+
7. Name, Address and Notified Body Number of Notified Body who carried out Initial Type Testing
Prüfinstitut für
Abwassertechnik GmbH
Hergenrather Weg 30
D-52074 Aachen
Germany
NB 1739
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8. Declared Performance: Treatment Performance
Essential Characteristic
Performance*
Harmonised Technical
Specification
Nominal Organic Daily Load
Nominal Hydraulic Daily Load
0.36 kg/d
0.90 m3/d
COD
BOD
5
SS
NH4**
91.6% 52 mg/l
95.9% 11mg/l
95.3% 16 mg/l
79.9% 8mg/l
EN12566-3
Electrical Power Consumption
1.1 kWh/d
*Performance results obtained at average organic daily load of 0.26kg/d and hydraulic daily load of
0.9m3/d
**Determined at temperatures >12
0
Material Performance
Essential Characteristic
Method
Performance
Harmonised
Technical
Specification
Water Tightness
Vacuum Test
Pass
EN12566-3
Crushing Resistance
Pit Test
Pass (also wet conditions)
Durability
Pass
Reaction to Fire
Class E
9. The performance of the product identified in point 2 is in conformity with the declared performance
in Point 8. This declaration of performance is issued under the sole responsibility of the manufacturer
identified in point 4.
Michael Stack
Managing Director
27/03/2014
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Tricel
(Killarney)
Ballyspillane Ind
Est
Killarney
Co.
Kerry
Ireland
13
DOP01CPRUK03201414
EN 12566-3
Packaged wastewater treatment
plants
for treatment of domestic
wastewater
- Product: Tricel Novo UK6 – UK50 Range of Wastewater Treatment
Plants
Notified Body: Prüfinstitut für Abwassertechnik GmbH
Hergenrather Weg 30
52074
Aachen
Number.: NB 1739
Treatment capacity
- Nominal organic daily load: (BOD
5
)
- Nominal Hydraulic daily flow (Q
N
)
As Set Out in
Table CE
for each
Model
Effectiveness of treatment:
Treatment efficiency ratios (at tested organic daily load
BOD5 of 0,26 kg/d and daily hydraulic flow of 0.9m3/d)
COD: 91,6 %
BOD5: 95,9 %
SS: 95,3 %
NH4-N: 56,7 %
Water tightness: (Vacuum test)
Crushing resistance: (Pit test)
Pass (also Wet
Durability
Pass
Fire Resistance
Class E
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12 Terms & conditions
Subject to our standard terms and conditions, which are available on request.
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43
Tricel
Identification
Code
This Tricel
Novo is a:
Nominal
Organic Daily
Load (BOD5)
(Kg)
Nominal
Hydraulic Daily
Flow (Litres)
UK6 0.36
900
UK8 0.48
1200
UK10 0.6
1500
UK12 0.72
1800
UK18 1.08
2700
UK24 1.44
3600
UK30 1.8
4500
UK36 2.16
5400
UK42 2.52
6300
UK50 3
7500
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