Browse Illinois Water Resources Center - Wastewater by Author "Brill Jr., E. Downey"

  • 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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  • Brill Jr., E. Downey; Nakamura, Masahisa (University of Illinois at Urbana-Champaign. Water Resources Center, 1977-10)
    The Japanese government is undertaking a major program to provide additional sewage collection and treatment because of the severe water pollution that has resulted from rapid urbanization and industrialization. The program ...

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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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  • Kao, Jehng-Jung; Pfeffer, John T.; Brill Jr., E. Downey; Geselbracht, James J. (University of Illinois at Urbana-Champaign. Water Resources Center, 1990-02)
    This research explores the use of computer-based environments to facilitate environmental engineering decision making. A prototype system is developed for wastewater treatment plant design as an exploration tool to demonstrate ...

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