Browse Illinois Water Resources Center - Wastewater by Subject "Optimization"

  • Yen, Ben Chie; Wenzel, Harry G., Jr.; Mays, Larry W.; Tang, Wilson H. (University of Illinois at Urbana-Champaign. Water Resources Center, 1976-08)
    This report describes the development of a series of computer models capable of determining the diameter, slope and crown elevations of each sewer in a storm drainage system in which the layout and manhole locations are ...

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  • Wenzel, Harry G., Jr.; Yen, Ben Chie; Tang, Wilson H. (University of Illinois at Urbana-Champaign. Water Resources Center, 1979-06)
    This report describes further development of computer models for determining the diameter, slope and elevations of each pipe in a storm drainage system in which the layout and manhole locations are specified. The design ...

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  • Yen, Ben Chie; Cheng,Shiu-Tuang; Jun, Ryong-Iio; Voorhees, Michael L.; Wenzel, Harry G., Jr.; Mays, Larry W. (University of Illinois at Urbana-Champaign. Water Resources Center, 1984-05)
    ILSD models are sewer system models for least-cost optimal design of the entire system. ILSD-1 designs for a specified layout the size and slope of the sewers with or without detention storages with user supplied rainfall ...

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  • Geselbracht, James J.; Brill Jr., E. Downey; Pfeffer, John T. (University of Illinois at Urbana-Champaign. Water Resources Center, 1986-04)
    The use of a rule-based modeling technique for the formal consideration of poorly modeled issues in a water quality management problem is illustrated in the context of wastewater treatment plant design. Sludge bulking is ...

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  • Nakamura, Masahisa; Brill Jr., E. Downey (University of Illinois at Urbana-Champaign. Water Resources Center, 1977-11)
    A mathematical method presented here deals with regionalization of wastewater systems, a complex public sector planning problem. The method proposed focuses on generating alternative physical plans efficiently and ...

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  • Tang, Chi-Chung; Brill Jr., E. Downey; Pfeffer, John T. (University of Illinois at Urbana-Champaign. Water Resources Center, 1984-11)
    A mathematical framework is developed for use in the design of a secondary wastewater treatment system. Mathematical models predicting the performance of various unit processes are used to construct a comprehensive system ...

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  • Uber, James Gregory; Brill Jr., E. Downey; Pfeffer, John T. (University of Illinois at Urbana-Champaign. Water Resources Center, 1985-06)
    A method for sensitivity analysis in nonlinear programming is described and then illustrated using a least-cost model of a secondary wastewater treatment system. A sensitivity equation approach is used to calculate normalized ...

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  • Rossman, Lewis A.; Liebman, Jon C. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-07)
    A mathematical decision model is developed which determines how a group of waste dischargers should regionalize their treatment facilities and the amount of treatment each facility should provide so that the cost of achieving ...

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