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Setting up the Goal of Eliminating Outbreaks of Blue-green Alga, Innovating the Idea of Controlling the Taihu Lake, and Ensuring the safety of water supply in the Taihu Lake

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Meteorological and Environmental Research 2020年第4期11卷 6-13页

作者： Xuqing CHEN Jianhua MA Xi ZHU Wuxi Algae Control Office Wuxi 214031China Wuxi Delinhai Environmental Protection Technology Co. Ltd.Wuxi 214071China Wuxi water Conservancy Society Wuxi 214031China

Since the water supply crisis in the Taihu Lake on May 29,2007,the control of the Taihu Lake has achieved remarkable results,and the eutrophication has been greatly *** problems are as follows:outbreaks of blue-green alga still appear seriously every year,and there is no goal to eliminate outbreaks of blue-green alga;the load into the lake greatly exceeds the environmental capacity;reed wetlands are greatly reduced;there is still the possibility of a water supply crisis;the research of eliminating outbreak of blue-green alga is *** this paper,the experience of controlling the Taihu Lake is summarized,and the ultimate goals of eliminating eutrophication and outbreaks of blue-green alga and restoring wetlands and biodiversity are *** measures are proposed,such as deepening the promotion of the lake chief system,establishing the lake chief system in an all-round way,and increasing applied scientific and technological efforts and capital *** necessity and possibility of further controlling the Taihu Lake to eliminate outbreaks of blue-green alga should be *** on controlling eutrophication alone cannot eliminate outbreaks of blue-green *** point that phosphorus control is the key to eliminate outbreaks of blue-green alga is not suitable for the Taihu *** integration ideas of"three types"of technologies should be *** first one is"double reduction and double increase"measures to eliminate eutrophication,of which"double reduction"is to reduce external point sources and non-point sources and internal blue-green alga in sediment;for external sources,the treatment standard of sewage plants should be paid special attention *** second one is"double algae removal"measures to salvage blue-green alga,suppresses and kills *** blue-green alga on the surface,middle and bottom of water should be thoroughly salvaged and eliminated from various water *** third one is"double restoration"measures to

关键词： Taihu Lake Outbreaks of blue-green alga Control effectiveness Establishment of goals Innovation of ideas Elimination of outbreaks water supply safety

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Review on corrosion and corrosion scale formation upon unlined cast iron pipes in drinking water distribution systems

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Journal of Environmental Sciences 2022年第7期34卷 173-189页

作者： Haiya Zhang Dibo Liu Lvtong Zhao Jun Wang Shuguang Xie Shuming Liu Pengfei Lin Xiaojian Zhang Chao Chen State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Research Institute for Environmental Innovation(Suzhou) TsinghuaSuzhou 215163China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

The qualified finished water from water treatment plants(WTPs) may become discolored and deteriorated during transportation in drinking water distribution systems(DWDSs), which affected tap water quality seriously. This water stability problem often occurs due to pipe corrosion and the destabilization of corrosion scales. This paper provides a comprehensive review of pipe corrosion in DWDSs, including corrosion process, corrosion scale formation, influencing factors and monitoring technologies utilized in DWDSs. In terms of corrosion process, corrosion occurrence, development mechanisms, currently applied assays, and indices used to determine the corrosion possibility are summarized, as well as the chemical and bacterial influences. In terms of scale formation, explanations for the nature of corrosion and scale formation mechanisms are discussed and its typical multilayered structure is illustrated. Furthermore, the influences of water quality and microbial activity on scale transformation are comprehensively discussed. Corrosion-related bacteria at the genus level and their associated corrosion mechanism are also summarized. This review helps deepen the current understanding of pipe corrosion and scale formation in DWDSs, providing guidance for water supply utilities to ensure effective measures to maintain water quality stability and guarantee drinking water safety.

关键词： Corrosion Scale formation water quality stability Drinking water distribution system Iron pipe water supply safety

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Review of water pollution control in China

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Frontiers of Environmental Science & Engineering 2008年第2期2卷 142-149页

作者： Tingyao GAO Hongbin CHEN Siqing XIA Zengyan ZHOU School of Environmental Science and Engineering Tongji UniversityShanghai 200092P.R.C National Engineering Research Center for Urban Pollution Control Tongji UniversityShanghai 200092

water resource shortage and pollution has seriously threatened the survival and development of developing *** of China’s specific economical and social circumstances,complete adoption of developed countries’experience is *** present,China needs to develop strategies and technologies in source water pollution control and municipal environmental remediation that embrace the country’s specific need to battle the water resource *** them,efficient source water pretreatment is a critical step to ensure a safe municipal water *** developed countries,it is not yet feasible in China to treat water supplied to the household and have it meet the standard of direct drinking;therefore,it is more appropriate to refer to it as service *** a beneficial supplement,an additional community drinking water network and household drinking water apparatus can be considered.

关键词： municipal aquatic environmental pollution control water supply safety China

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