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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

China Water & Wastewater(2011)

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Abstract
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。
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Key words
double-layer composite seepage control,leachate discharge,sediment contaminated by heavy metals,Hangu sewage reservoir
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