The result is an enhanced level of treatment in the same volume of tankage. The media provides a large surface area to which beneficial microorganisms attach, forming a biofilm that supplements the activity of the suspended microorganisms. The process uses polyethylene carrier elements (media) added to the plant’s aeration basins. Kruger, a subsidiary of Veolia Water Solutions & Technologies, won a contract with the Franklin Township Sewer Authority (FTSA) in Waynesburg, Pa., to retrofit the wastewater treatment plant with the AnoxKaldnes Integrated Fixed-Film Activated Sludge (IFAS) process. Kruger upgrades township’s treatment capabilities with IFAS The new mixers, operating in a pre-denitrification tank, consume 175,000 kWh of electricity, versus 500,000 kWh for the old mixers they replaced. Located in Italy’s scenic Lake Como region, the plant treats 11.5 mgd, serving a population of 200,000. According to a comparison study conducted by Comopedur, which operates the plant, the company’s Flygt 4530 submersible mixers have saved 50,000 euros in annual operating costs. reduced the energy consumption of a wastewater treatment plant in Italy by 65 percent. Xylem mixers help cut treatment plant operational costs by 65 percent
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