Constructed in the 1960s by Datang Corporation and located in Mengtougou, the Gaojing Power Plant is one of the oldest power plants in Beijing. For the past 40 years, the Gaojing Power Plant has supplied 6 X 100 MW/hr of heat and electricity to local communities and industries. In 2003, with increasing environmental requirements from the government, the plant started using membrane technology to reuse the blowdown from its cooling towers as feed for its eight boilers.

Municipal wastewater treatment plants continue to adopt submerged membrane bioreactor (MBR) technology due to two advantages over conventional biological wastewater treatment-improved effluent quality and a smaller footprint. When coupled with membranes, biological and chemical phosphorous removal methods can be employed to meet total phosphorous effluent limits of less than 0.1 mg/L. Phosphorus precipitation, combined with the positive barrier the membrane provides, reduces the amount of phosphorus and suspended solids in the plant effluent.

Tags: Filters , October 2009 Issue

Replacing Waupun, Wisconsin's aging water softening facility gave the locally owned utility (Waupun Utilities) an opportunity to find new technology that would provide needed equipment redundancy, offer expansion for future population growth and help meet existing and future state regulatory requirements.

Tags: Filters , Water and Wastewater

Pumps and Systems, August 2009

Cooling towers, an effective and common means for industrial process heat extraction, are not a closed-loop system. As a result, air and water-borne particulate sucked in the system can eventually foul valuable downstream equipment such as spray nozzles, welding operations, chillers, heat exchangers and small bore piping in cooling circuits.

Tags: August 2009 Issue , Filters

Pumps and Systems, June 2009

Weather conditions worldwide have created situations where traditional raw water sources are scarce or no longer available. This condition has resulted in utilities searching for alternate sources such as wastewater effluent, seawater or brackish water to process and produce potable water.

Tags: Filters , June 2009 Issue , Reverse Osmosis Membrane Pretreatment