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Results include
  1. Treatment efficiency and energy use in activated sludge process control

    Fond du Lac, Wis. : Arthur Technology ; Boston : Butterworth Publishers, c1986.

  2. Estimating costs for water treatment as a function of size and treatment efficiency

    Gumerman, Robert C.
    Cincinnati, Ohio : Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; Springfield, Va. : for sale by the National Technical Information Service, 1978.

    Online Full text via HathiTrust

  3. Parking lot runoff quality and treatment efficiency of a stormwater-filtration device, Madison, Wisconsin, 2005-07

    Horwatich, J. A.
    [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2010.



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