Control of clarifier in the activated sludge process is critical for ensuring effective wastewater treatment. This paper is to study appropriate control strategies for a clarifier in an industrial wastewater treatment...Control of clarifier in the activated sludge process is critical for ensuring effective wastewater treatment. This paper is to study appropriate control strategies for a clarifier in an industrial wastewater treatment plant. Five control strategies are proposed, implemented and evaluated in a simulation software （West ＋＋）. The sludge blanket height and the effluent suspended solids concentration were proposed as the measured variable. The manipulated variable was the quantity of polymer added to the system. The strategies were evaluated in terms of their ability to maintain the sludge blanket height below 1.5m, their polymer requirements, their sensitivity to poor tuning and the required control action.展开更多
Chemotherapy employs chemical substances to interfere with the growth of cancer cells,and is a major treatment strategy in human cancer including acute myeloid leukemia（AML）.Although they often effectively kill fast...Chemotherapy employs chemical substances to interfere with the growth of cancer cells,and is a major treatment strategy in human cancer including acute myeloid leukemia（AML）.Although they often effectively kill fast-dividing tumor cells,展开更多
文摘Control of clarifier in the activated sludge process is critical for ensuring effective wastewater treatment. This paper is to study appropriate control strategies for a clarifier in an industrial wastewater treatment plant. Five control strategies are proposed, implemented and evaluated in a simulation software （West ＋＋）. The sludge blanket height and the effluent suspended solids concentration were proposed as the measured variable. The manipulated variable was the quantity of polymer added to the system. The strategies were evaluated in terms of their ability to maintain the sludge blanket height below 1.5m, their polymer requirements, their sensitivity to poor tuning and the required control action.
基金supported by China Ministry of Science and Technology grants(2014CB542001)the Key Research Program of the Chinese Academy of Sciences(Precious Medicine Research in Chinese Population)+1 种基金the National Natural Science Foundation of China(9133111181425003)
文摘Chemotherapy employs chemical substances to interfere with the growth of cancer cells,and is a major treatment strategy in human cancer including acute myeloid leukemia（AML）.Although they often effectively kill fast-dividing tumor cells,
