Articles & Case Studies

Siemens to provide a membrane filtration system for Highland Park, Illinois’ Water Treatment Plant upgrade

Posted: Tuesday 21st July 2009

The City of Highland Park, Illinois has awarded Siemens a multi-million dollar contract to provide a Memcor submerged membrane filtration system for its existing water treatment plant. The system, which will treat water from Lake Michigan, will replace an aging conventional filtration plant at the facility, and increase the plant’s rated capacity from 21 MGD (79 MLD) to 30 MGD (113 MLD). When started up, this will be the 12th Memcor membrane system operating on Lake Michigan. CDM is the consulting engineer on the project, which is scheduled for completion in the winter of 2012.

The plant, located in this North Shore Chicago suburb, serves approximately 60,000 people. Built in 1930 and expanded twice, the facility’s treatment capacity is now at its limits. Retrofitting the plant will involve removing the roof from one of four settling basins, and installing a 30-MGD (113- MLD) membrane system in what will become the membrane process room. During construction, the existing water treatment plant will continue to operate in order to provide Highland Park’s customers with all the water they need. When this retrofit project is completed, the City will have increased its rated treatment capacity by over 40% in the space once occupied by only 25% of its coagulation/flocculation/settling process. The City chose the Memcor submerged membrane system following a 12-month pilot study and competitive procurement process, whereby Siemens’ Memcor CS technology was shown to provide the best value. The Memcor CS submerged membrane filtration system is popular for retrofit of aging drinking water plants as it offers great design flexibility, a lower life-cycle cost and compact footprint. It also provides a greater than 4-log removal of Cryptosporidium, Giardia and bacteria, over 1.5-log virus rejection and a silt density index of less than 2.0, regardless of changing feed water conditions.

The City of East Chicago, Indiana, has also awarded Siemens a multi-million dollar contract to provide a Memcor pressurized membrane filtration system for a new water treatment plant. The 16-MGD (60.5-MLD) system, which will treat water from Lake Michigan, will be the first large-scale pressurized membrane plant in Indiana. It will also be Siemens’ 12th membrane plant on Lake Michigan. American Structurepoint and Black & Veatch will provide design engineering and plant construction services. The system is scheduled for completion in the spring of 2011.

After reviewing all the proposals and some of Siemens’ membrane plants already operating on the Lake, American Structurepoint recommended the Memcor membrane system to the City of East Chicago. Says Eric Horvath, North Regional Services Director for American Structurepoint, “We felt that the Siemens offering provided the best value, and we believed they would do a good job given their experience in treating Lake Michigan water.” The existing water treatment plant in East Chicago was built in 1964 and has reached the end of its design life expectancy. The deterioration of the plant has resulted in concerns about operational reliability. Because of the multi-million dollar investment needed to rehabilitate and refurbish the existing facility, the City has elected to construct a new treatment plant inland from the current location. Once the new plant is operating, the old plant will be demolished and the land will be incorporated into the Marquette Plan for revitalizing the Lake Michigan waterfront. The Memcor CP pressurized membrane filtration system will consist of six skids, each with 240 membrane modules. This innovative technology is popular with drinking water plants as it offers a lower life-cycle cost and a smaller footprint than conventional treatment systems. It also provides a greater than 4-log removal of Cryptosporidium, Giardia and bacteria, over 1.5-log virus rejection and a silt density index of less than 2.0, regardless of changing feed water conditions.




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