GE Power & Water
Water & Process Technologies
Innovative Low Energy Advanced Primary Treatment for MBR
Addressing Our
Customers'
Challenges
Membrane bioreactor (MBR) technology
is recognized as the best available
technology for treating municipal and
industrial wastewater to alleviate water
scarcity, enable water reuse and help
protect our natural environment. With
over 25 years of MBR experience, GE
continues to set the standard for product
innovation, membrane manufacturing,
system design and customer support.
In addition to our industry-leading
ZeeWeed* MBR and LEAPmbr products,
GE brings innovation to other areas of an
MBR plant to enhance the performance
and efficiency of our customers’ facilities.
Our customers increasingly focus on
energy efficiency. Rising energy costs
and concerns about greenhouse gas
emissions mean that wastewater
treatment plant owners and operators
value equipment and processes that
reduce energy consumption.
What is LEAPprimary?
LEAPprimary is an advanced primary treatment
system that combines separation, thickening and
dewatering of primary solids in a single compact
unit. The LEAPprimary system performs the same
function as a primary clarifier and fine screen
in a typical MBR plant. The figure below depicts
the performance advantages of combining
LEAPprimary and LEAPmbr technologies.
Compact design
reduces plant
footprint and
capital cost
High removal of TSS
(50% to 70%) and
BOD (25% to 40%)
reduces organic load
to biological treatment
Energy Savings
Reduce energy for
biological treatment by
25% and enable energy
recovery.
Cost Savings
Reduce primary treatment
equipment for your MBR
and save 20% to 40%.
Simplified Design
Combine primary solids
separation, sludge
thickening and dewatering
in one compact step.
LEAPprimary addresses the energy
challenge by significantly reducing the
energy required for secondary biological
treatment. The residual product
produced by the LEAPprimary system
enables energy recovery as it is rich in
organics and can be used in anaerobic
digestion, incineration or other solids
treatment to enhance the conversion
of carbon to energy in wastewater.
The combination of LEAPprimary with
LEAPmbr is the latest innovation in MBR
technology and makes
exceptional effluent quality with
energy consumption possible.
achieving
low
Removed solids can be
dewatered to 20% to 30%
dry matter to minimize
handling costs
Reduced organic
load results in smaller
bioreactor and reduced
energy consumption
Enhanced influent
solids screening
extends ZeeWeed
membrane life
Guaranteed Reliability
Extend membrane life
with enhanced influent
ZeeWeed
solids screening.
Smaller Footprint
Achieve advanced
primary treatment
in as little as 1/10th
the footprint of a
conventional system.
Case Studies
Facility in Southern
Ontario, Canada
An existing MBR facility in Southern Ontario was built with a conventional 2 mm fine screen as primary treatment. In
February 2013 the fine screen was replaced with a LEAPprimary system to demonstrate the impact that the LEAPprimary
technology would have upon mixed liquor characteristics and ZeeWeed membrane performance.
The LEAPprimary system proved to have a positive impact on the membrane performance by enhancing the removal
of
particulate material from the wastewater prior to the MBR. Trash content (material in the mixed liquor greater than 2 mm
in size) was 60 mg/L prior to the installation of the LEAPprimary unit. One month after the fine screen was replaced with
LEAPprimary the trash content reduced to near zero, which indicates that the material that could reduce ZeeWeed
membrane life had been removed from the process.
Process testing was also performed to quantify the TSS and BOD removal of the LEAPprimary
system. TSS and COD removal were measured at 50% and 25% respectively. The impact of this
was a reduction in the air demand for biological process aeration in the bioreactor. The solids
that were retained by the LEAPprimary system were dewatered to a concentration of 25% to
30% dry matter.
Enahanced ZeeWeed membrane performance, lower energy demand and simplified operation
were successfully demonstrated for LEAPprimary at this installation.
Contact our team of global experts for more
information or a plant specific presentation.
Global Headquarters
4636 Somerton Road
Trevose, PA 19053
USA
Tel. +1 215 355 3300
www.gewater.com
* Trademark of General Electric Company; may be registered in one or more countries.
This information herein may be subject to change without notice and is provided for
general guidance only. The dimensions and performance of systems, products and
services may vary. Pictures are for example purposes and not to scale. All legal obligations
are exclusively as set out in contractual documents. Nothing contained herein constitutes
a representation, warranty or undertaking.
©2013, General Electric Company. All rights reserved.
GEA30891 (10/2013)
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