title: Water pollution control technology and strategy for river-lake systems: a case study in Gehu Lake and Taige Canal.
abstract: The Taoge water system is located in the upstream of Taihu Lake basin and is characterized by its multi-connected rivers and lakes. In this paper, current analyses of hydrology, hydrodynamics and water pollution of Gehu Lake and Taige Canal are presented. Several technologies are proposed for pollution prevention and control, and water environmental protection in the Taihu Lake basin. These included water pollution control integration technology for the water systems of Gehu Lake, Taige Canal and Caoqiao River. Additionally, river-lake water quality and quantity regulation technology, ecological restoration technology for polluted and degraded water bodies, and water environmental integration management and optimization strategies were also examined. The main objectives of these strategies are to: (a) improve environmental quality of relative water bodies, prevent pollutants from entering Gehu Lake and Taige Canal, and ensure that the clean water after the pre-treatment through Gehu Lake is not polluted before entering the Taihu Lake through Taige Canal; (b) stably and efficiently intercept and decrease the pollution load entering the lake through enhancing the river outlet ecological system structure function and water self-purifying capacity, and (c) designate Gehu Lake as a regulation system for water quality and water quantity in the Taoge water system and thus guarantee the improvement of the water quality of the inflow into Taihu Lake.
authors.affiliation: Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, 8 Jiangwangmiao Street, Nanjing, 210042, China. zhangymzym@163.com
authors.forename: Yimin
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yongchun
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yuexiang
authors.initials: Y
authors.lastname: Gao
authors.forename: Houhu
authors.initials: H
authors.lastname: Zhang
authors.forename: Jianying
authors.initials: J
authors.lastname: Cao
authors.forename: Jinbang
authors.initials: J
authors.lastname: Cai
authors.forename: Xiangji
authors.initials: X
authors.lastname: Kong
mesh_terms: D002681:China; D003247:Conservation of Natural Resources / Q000379:methods*; D004784:Environmental Monitoring; D005618:Fresh Water / Q000737:chemistry*; D057446:Hydrodynamics; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis / Q000517:prevention & control*; D014881:Water Supply / Q000032:analysis / Q000706:statistics & numerical data
chemical_list: D014874:Water Pollutants, Chemical