Case study on the treatment of black and odorous water body of Qicai Lake in Guiyang City
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摘要: 选取贵阳市七彩湖作为我国南方喀斯特地貌特点地区黑臭水体治理的典型案例,分析与阐述了七彩湖主要水环境问题、治理措施、典型治理技术以及治理成效。治理前七彩湖存在污水收集能力不足、生活垃圾任意堆放、底泥淤积严重等问题,水质为重度黑臭,贵阳市采取了控源截污、内源治理,活水循环、清水补给,生态修复、景观打造的治理思路,采用了以箱体内设泥渣砂油(SSgo)固液秒分离技术和固定床生物膜反应器(FBBR)工艺为核心的污水处理集成技术、生境营造与生态修复技术及活水循环提质技术开展治理,取得了良好的环境效益、经济效益和社会效益。
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关键词:
- 黑臭水体 /
- 控源截污 /
- 活水循环 /
- 固定床生物膜反应器(FBBR)工艺 /
- 七彩湖
Abstract: Qicai Lake in Guiyang City was selected as a typical case of the treatment of black and odorous water body in karst landform area in south China, the main water environmental problems, treatment measures, typical treatment technologies and treatment effects were introduced. Qicai Lake was identified as heavy-level black and odorous water body before treatment, due to insufficient sewage collection capacity, random stacking of household garbage, serious sediment deposition and so on. In order to solve these problems, Guiyang City proposed governance strategies of source pollution control, pollution interception, internal source treatment, fresh water supply and circulation, ecological restoration, landscape building, and the integrated wastewater treatment technology based on sludge sediment grit oil (SSgo) solid-liquid quick separation technology and fluidized bed biological reactor (FBBR) in the tank, habitat creation and ecological restoration technology, and the living water cycle quality extraction technology were used to carry out the renovation. Good environmental, economic and social effects had been achieved after restoration of Qicai Lake. -
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