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汉沽污水库底泥填埋场防渗系统与渗沥液导排设计 被引量:4

Design of Seepage Control System and Leachate Discharge from Sediment Landfill Site in Tianjin Hangu Sewage Reservoir
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摘要 中新天津生态城内的汉沽污水库底泥中富含汞、砷、铜、镉等重金属,采用土工管袋脱水处理后进行填埋处置。填埋场地的防渗安全和渗沥液导排设计至关重要。根据场址条件和底泥的重污染特性,防渗按照严格双层复合防渗结构来设计;根据土工管袋法脱水速率快、工程周期短的特点,对渗沥液采用卵石导排层、导排管、排水沟、汇水池、排水泵等相结合的方式尽快导出填埋区。 The sediment of Hangu sewage reservoir in Sino-Singapore Tianjin Eco-city contains heavy metals including Hg, As, Cu, Cd and so on. It is dehydrated in geotextile tube and disposed by means of landfill. The safety for seepage control and the design of leachate discharge from landfill site are very important. According to the site conditions and the property of sediment contaminated by heavy metals, double-layer composite seepage control structure is designed. According to the properties of the faster dehydrating speed and the shorter period of construction of geotextile tube, pebble system, drainpipe, barrel-drain, impoundment well, water pump are adopted in this project for discharging leachate as soon as possible from the landfill site.
出处 《中国给水排水》 CAS CSCD 北大核心 2011年第20期61-63,共3页 China Water & Wastewater
关键词 汉沽污水库 重金属污染底泥 双层复合防渗 渗沥液导排 Hangu sewage reservoir sediment contaminated by heavy metals double-layer composite seepage control leachate discharge
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