Case Study Detail

Big Breakthrough Technolgy Reducing Energy and Overall Costs

The Industry Standard Solution
The efficiency and lifecycle costs of a plant’s energy recovery technology is critical to both winning SWRO projects and achieving maximum plant profitably through the lowest operating costs. Leading international OEM’s such as Acciona Agua, Aqua Engineering, Befesa, CH2MHill, Cobra Tedagua, Doosan Hydro Technology, Fisia Italimpianti, GE Water Process and Technologies, GEIDA, IASUR, INIMA, Metito, Siemens and Suez Degrémont have selected the ERI® PX modular technology for their recent projects because it consistently achieves real energy transfer efficiencies— up to 98%, making it the most efficient energy recovery device available today. At the core of the PX device is a single moving rotor made of tough engineered ceramic that is unaffected by chemicals, will not corrode, and requires no periodic maintenance. Over 80 OEMs are standardizing on PX technology with installations around the world, including plants such as Al Shuaibah III, Barcelona, Chennai, Hamma, Perth, Skikda, Torrevieja and Yuhuan.

YuHuan Project Facts

• CAPACITY: 36,000 m3/day
• 6 trains - 6,000 m3/day
• 6 PX-220 PRESSURE EXCHANGERS PER SWRO TRAIN
• 95% EFFICIENCY GUARANTY
• ONE OF THE LARGEST DESALINATION PLANTS IN CHINA
• PLANT STARTUP – APRIL 2006

YuHuan, China Power Station
The desalination facility in China’s Zheijang Province is the largest desalination project in Mainland Asia. The plant, built by Beijing CNC Technology, Inc. will supply process water to new electrical power stations. The OEM’s decision to use ERI®’s PX Pressure Exchanger® Technology (PX®) for the 36,000 m3/day YuHuan desalination plant will prepare the Country for its 2008 Olympics.

The 1,800 MW power stations will expand China’s electrical grid capacity in preparation for the 2008 Olympics. Rapid growth of the economy in China has stretched availability of electric power. Desalinating seawater by conventional “waste heat” recovery methods consumes a significant portion of a power plant’s energy input. Compared to conventional technology, the PX devices cuts the amount of energy required to desalinate seawater for power plants by up to 68%. The use of PX technology at the YuHuan desalination plant enables the reduction in desalination plant power demand of over 4.4 MW- saving over $2.0 million per year.

Other desalination plants, such as Beijing’s CNC 5,000 m3/day SWRO plant at China Petrochemicals Dalian built in 2003 also uses ERI’s PX-220 large rotor energy recovery technology. The East China Electric Power Design Institute Ministry (ECEPDI) and Beijing CNC specified ERI PX-220s for YuHuan based on the proven high efficiency and two-year trouble-free track record of the PX-220 installation at Dalian China Petrochemical. Because of its 98% energy efficiency solution, China now leads the world in the adoption of efficient PX technology with over 80% of seawater desalination plant capacity in the country using the ERI PX solution.

YuHuan Power Station SWRO Desalination Project

Energy Recovery, Inc. (ERI®) is a leading manufacturer of energy recovery devices, which help make desalination affordable. ERI’s PX Pressure Exchanger® technology (PX®) is a rotary positive displacement pump that recovers energy from the high-pressure waste stream of sea water reverse osmosis (SWRO) systems at up to 98% efficiency with no downtime or scheduled maintenance.

ERI has research, development and manufacturing facilities in the San Francisco technology corridor as well as direct sales offices and technical support centers in key desalination hubs such as Madrid, Dubai, Shanghai and Florida. ERI service representatives are based in Algeria, Australia, China, India, Korea, Mexico, Taiwan and the Caribbean.

The world’s largest energy recovery device manufacturer* delivers:

• Proven SWRO Power Consumption as Low as 1.7 kWh/m†
• No Scheduled Maintenance Shutdown
• No Pulsations, or Complicated Controls
• The Simplest Solution to Lowest Lifecycle Costs
• Flexibility, Proven Reliability and Real Savings

Guaranteed.
Contact us today at sales@energy-recovery.com to find out how you can start saving, or to learn more about ERI and the PX solution, visit us at: www.energyrecovery.com