bneg.org

Business Wire, Nov 09, 2009

Next-generation Technology Sets New Industry Standard for Efficiency
and Performance of Energy Recovery Devices in Desalination Plants

SAN LEANDRO, Calif. & DUBAI, United Arab Emirates — Energy
Recovery, Inc. (NASDAQ: ERII), a leader in the design and
development of energy recovery devices for desalination, today
introduced its QuadribaricTM technology, advancing the
companys mission to make seawater desalination an affordable solution
to addressing the worlds clean water shortages. Embedded into the
latest PX Pressure Exchanger (PX-300) line of rotary energy recovery
devices, ERI Quadribaric technology uses a patented new design that
revolutionizes the way PX devices workessentially doubling the work
load of each devicewith greater efficiency than any energy recovery
device on the market.

Energy Recovery is continually developing technologies to support the
evolving needs of desalination plants and to help deliver
environmentally friendly, low-cost water to the world. Quadribaric
technology is our latest enhancement and establishes a new performance
standard for the industry, said Dr. Richard Stover, ERIs chief
technology officer. With the PX-300 device, Energy Recovery is
supporting the growing capacity demands of larger desalination plants,
where lower operating pressures, higher efficiencies and longer product
life are essential to success.

Energy Recovery introduces a number of distinct benefits to desalination
facilities around the world with the new technology, including:

• Higher Efficiency: Quadribaric technology features straighter
  flow paths than previously possible, improving efficiency.
• Less Mixing: With its reduced cycle speed, Quadribaric
  technology achieves minimal mixing between the seawater concentrate
  and feed water, supporting lower operating pressures in desalination
  systems.
• Greater Reliability: The slower rotational rate of the
  Quadribaric technology design extends product life cycle.
• Quieter Operation: Quadribaric technology uses a smoother
  exchange process, reducing the sound level produced by its operation.

As the first ERI device to leverage the company’s new Quadribaric
technology, thePX-300 unit combines excelled isobaric technology design
and state-of-the-art of vessel and port configuration to yield increased
production capacity and improved energy recovery efficiency at a
competitive price, said Nikolay Voutchkov, president of Water Globe
Consulting, LLC. I would expect the PX-300 to become the new ’standard’
for energy recovery equipment in medium and large-size desalination
plants, and look forward to seeing the benefits these facilities gain
with the new ERI design.

The Energy Recovery PX device is used in hundreds of desalination plants
around the world. More than 7,000 PX devices are currently deployed or
under contract to be installed at desalination plants across the globe.
All combined, these devices deliver more than six billion liters of
clean water each dayan average of one liter for every person on the
planet. By using ERI PX devices to recycle wasted pressure energy,
desalination plants are able to reduce the energy consumption of SWRO
systems by up to 60 percent, making desalination a cost-effective
solution for data storage software clean water supply. PX devices also reduce the carbon
footprint of desalination, saving more than 750 MW of energy and
reducing CO2 emissions by more than 4.6 million tons per year
worldwide. With the new Quadribaric technology, each unit shipped will
mean even greater energy savings and environmental benefits, helping
meet the growing demand for clean, affordable water supply demands.

About ERI

Energy Recovery, Inc. (NASDAQ:ERII) designs and develops energy recovery
devices that help make desalination affordable by significantly reducing
energy consumption. ERIs PX Pressure Exchanger (PX) device is a
rotary positive displacement pump that recovers energy from the high
pressure reject stream of seawater reverse osmosis systems at up to 98%
efficiency