PERFORMANCE OF A COMBINED CONSTRUCTED WETLAND SYSTEM FOR TREATING VILLAGE SEWAGE IN LAKE DIANCHI VALLEY
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概要
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In order to promote the application of constructed wetland technology for wastewater treatment and for preventing the Lake Dianchi Valley of China from further eutrophication, field studies was carried out, which included the small-scale, pilot-scale experiments, and finally demonstration treatment systems. In this study, the performance of a combined free water, subsurface constructed wetlands and ecological pond system was designed and adopted to treat one villages sewage. The monitor results of 430 days showed that the mean removal rates of total nitrogen, ammonia-nitrogen, total phosphorus and COD were 89.9%, 85.1%, 85.1% and 80.6%, respectively. The water quality could achieve the design requirement. The performance of wetland system in the storm was also investigated. The system could resist the impulse load of stormwater and had a good capacity to reduce the non-point source pollutants brought by the stormwater runoff.
著者
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Fujie Koichi
Department Of Ecological Engineering Toyohashi University Of Technology
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Yi Qian
Environmental Engineering Department Tsinghua University
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Xia Huang
Environment Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University
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Hong-Ying Hu
Environment Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University
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Liu Chao-Xiang
Environment Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University
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Hang-chang Shi
Environment Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University
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