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A combined application of different engineering techniques to remediate a heavily polluted river
作者: Yanqing Sheng(盛彦清) ; YIngxuan Qu ; Chaofeng Ding ; Qiyao Sun ; Robert Mortimer
刊名: Ecological Engineering
出版日期: 2013-08-05
期号: 57, 页码:1-7
关键词: Polluted river ; Aeration ; Aeration ; Biological aerated filter ; Biological aerated filter ; Bioremediation ; Bioremediation ; China ; China
学科分类: Environmental Sciences & Ecology; Engineering
产权排序: 1.[Sheng, Yanqing; Qu, Yingxuan; Ding, Chaofeng; Sun, Qiyao] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Coastal Environm Engn Technol Res Ctr Shandong Pr, Yantai 264003, Peoples R China.; 2. [Mortimer, Robert J. G.] Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England.
River pollution is becoming a serious problem worldwide. A field-scale experiment was undertaken to remediate a heavily polluted river using a combined engineering approach of aeration, microorganisms, biological aerated filtration, artificial biofilms and ecological floating beds. Prior to remediation, the river water was black, anoxic and highly sulfidic. With remediation, the chemical oxygen demand decreased from similar to 250 to similar to 50 mg L-1, NH4+-N decreased from similar to 27 to similar to 4 mg L-1, sulfide decreased from similar to 3 to similar to 0.3 mg L-1, and total suspended solids decreased from similar to 270 to similar to 40 mg L-1. At the same time, dissolved oxygen increased from similar to 0.1 to similar to 3.5 mg L-1, and water clarity increased from similar to 6 to similar to 40 cm. Furthermore, the unpleasant odor emanating from the polluted river was also stopped, and local farmers have begun using the water for irrigation. This field-scale experiment thus indicates the potential usefulness of this combined engineering approach to remediate heavily polluted rivers.
收录类别: SCI
内容类型: 期刊论文
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Recommended Citation:
Yanqing Sheng*,YIngxuan Qu,Chaofeng Ding,et al. A combined application of different engineering techniques to remediate a heavily polluted river[J]. Ecological Engineering,2013(57):1-7.
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