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Evaluation of aquatic rehabilitation technologies for polluted urban rivers and the case study of the Foshan Channel

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Frontiers of Environmental Science & Engineering 2010年第2期4卷 213-220页

作者： Haifeng JIA Nan DONG Hongtao MA Department of Environmental Sciences&Engineering Tsinghua UniversityBeijing 100084China

An index system for evaluation of technologies for urban river rehabilitation was proposed and *** index system includes indicators of cost,resources,environmental improvement,and social *** calculation method for an objective value of each index based on its attributes and weights was *** Foshan Channel,which is a seriously polluted,black and malodorous urban river in Foshan City,China,was selected as a case *** values of the attributes and the weights of the indices for the Foshan Channel were *** technologies for the rehabilitation of the Foshan Channel were evaluated based on this index ***,a rehabilitation scheme for the Foshan Channel was proposed.

关键词： river rehabilitation urban rivers river pollution multi-objective analysis the Foshan Channel

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Sustainable multi-objective multi-Reservoir Optimization Considering Environmental Flow

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Journal of Water Resource and Protection 2021年第12期13卷 945-956页

作者： Pushpak D. Dabhade Dattatray G. Regulwar Department of Civil Engineering Government College of Engineering Aurangabad India

Increasing demand for water from all sectors presents a challenge for policy makers to improve water allocation policies for storage reservoirs. In addition, there are many other organisms and species present in river waters that also require water for their survival. Due to the lack of awareness many times the minimum required quantity and quality of water for river ecosystem is not made available at downstream of storage reservoirs. So, a sustainable approach is required in reservoir operations to maintain the river ecosystem with environmental flow while meeting the other demands. multi-objective, multi-reservoir operation model developed with Python programming using Fuzzy Linear Programing method incorporating environmental flow requirement of river is presented in this paper. objective of maximization of irrigation release is considered for first run. In second run maximization of releases for hydropower generation is considered as objective. Further both objectives are fuzzified by incorporating linear membership function and solved to maximize fuzzified objective function simultaneously by maximizing satisfaction level indicator (λ). The optimal reservoir operation policy is presented considering constraints including Irrigation release, Turbine release, Reservoir storage, Environmental flow release and hydrologic continuity. Model applied for multi-reservoir system consists of four reservoirs, i.e., Jayakwadi Stage-I Reservoir (R1), Jayakwadi Stage-II Reservoir (R2), Yeldari Reservoir (R3), Siddheshwar Reservoir (R4) in Godavari River sub-basin from Marathwada region of Maharashtra State, India.

关键词： Optimization multi-objective analysis multi-Reservoir Reservoir Operation Environmental Flow Linear Programming Fuzzy Logic

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