期刊
GEOTEXTILES AND GEOMEMBRANES
卷 27, 期 3, 页码 232-239出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.geotexmem.2008.11.007
关键词
Compacted clay liner; Geomembrane; Landfill; Municipal solid waste; Performance
资金
- National Nature Science Foundation of China [50878052]
- National Science Found of Southeast University [9221001483]
- Science Found of the Laboratory of Geotechnical and Underground Engineering, Tongji University [KLE-TJGE-0801]
In 2004, Chinese Government prescribed standard municipal solid waste (MSW) landfill bottom liners. However, very limited research has been conducted to evaluate the performance of the standard MSW landfill bottom liners prescribed by the Chinese Government. In this paper, the performance of the two types of Chinese MSW landfill bottom liner systems was evaluated based on: (1) the maximum leachate head; (2) leakage rate; (3) peak concentration of the target contaminant in an aquifer which was underlain the assumed landfill, and (4) total mass per unit area of the target contaminant discharged into the aquifer. The performance of the German standard MSW landfill bottom liner system was evaluated and compared with that of Chinese ones. It is found that the calculated maximum leachate head for the Chinese landfill liner systems was much higher than that for the German one. The calculated leakage rate, peak concentration and the maximum total mass per unit area in the aquifer of the target contaminant show that the performance of the Chinese standard landfill liner Type 2 is practically the same as that of the German standard landfill liner with holed geomembrane wrinkles, while the Chinese standard liner Type 1 is less effective, with regarding the mitigation of the impact of landfills to the groundwater quality. It is concluded that the overall performance of the Chinese standard landfill liner systems is less strict than that of the German standard landfill liner system. (C) 2008 Elsevier Ltd. All rights reserved.
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