膨润土防水毯在渗滤液环境下防渗性能的测试应用研究  

Test and application research on the anti-seepage performance of bentonite geosynthetic clay liner in leachate environment

作　　者：吴新泽 曾春燕 蔡如玉 索政 汤军安 WU Xinze;ZENG Chunyan;CAI Ruyu;SUO Zheng;TANG Jun’an(China Testing&Certification International Group Co.,Ltd.,Beijing 100024)

机构地区：[1]中国国检测试控股集团股份有限公司,北京100024

出　　处：《中国建材科技》2024年第2期1-4,共4页China Building Materials Science & Technology

基　　金：中国建筑材料科学研究总院有限公司青年科学基金项目“垃圾填埋场用膨润土防水毯防渗性能评价方法研究”(ZD-14)。

摘　　要：膨润土防水毯作为一种优异的防渗材料,国内暂无其在渗滤液环境下的渗透性能报道。本文拟配置性能组分稳定的代表性合成渗滤液作为实际渗滤液的替代试验介质,研究合成渗沥液对膨润土原料膨胀性能和滤失性能的影响,测试在合成渗滤液环境中,不同压力和温度条件下膨润土防水毯的渗透系数,以此为垃圾填埋工程和其他固废填埋工程使用膨润土防水毯作为防渗衬垫提供指导。Bentonite geosynthetic clay liner is an excellent anti-seepage material,and there are currently no reports on its permeability in leaching environment in China.In this paper,a representative synthetic leaching solution with stable properties and components is prepared as a substitute test medium for the actual leaching solution,and the influence of synthetic leaching solution on the swelling performance and filtration performance of bentonite raw materials is studied.The permeability coefficient of bentonite geosynthetic clay liner is tested under different pressure and temperature conditions in the synthetic leaching solution environment,in order to provide guidance for the use of bentonite geosynthetic clay liner as anti-seepage liner in landfill projects and other solid waste landfill projects.

关 键 词：膨润土防水毯 防渗 渗滤液 

分 类 号：X705[环境科学与工程—环境工程] TU57[建筑科学—建筑技术科学]