乙烯—乙烯醇共聚物(EVOH)土工膜对填埋场衬垫和覆盖中的优化作用  

Optimization effect of ethylene-vinyl alcohol(EVOH)geomembranes on liners and covers of landfills

作　　者：周江 谢鑫 李大龙 倪政 张坤勇 吴珣 Zhou Jiang;Xie Xin;Li Dalong;Ni Zheng;Zhang Kunyong;Wu Xun(Municipal Engineering Co.,Ltd.,China Railway Fourth Bureau Group,Hefei 230022,China;College of Civil Engineering and Transportation,Hohai University,Nanjing 210024,China)

机构地区：[1]中铁四局集团市政工程有限公司,安徽合肥230022 [2]河海大学土木与交通学院,江苏南京210024

出　　处：《能源与环保》2024年第10期135-139,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：中央高校基本科研业务费专项资金(B240201024);国家自然科学基金资助项目(42002288)。

摘　　要：生活垃圾填埋场是我国处理生活垃圾的最重要手段之一,土工膜广泛应用于填埋场衬垫和覆盖中。介绍了一种新型土工膜,乙烯—乙烯醇共聚物(EVOH)土工膜。通过现有的文献调研发现,与传统的PE土工膜相比,EVOH土工膜对苯类等挥发性有机化合物、甲烷以及硫化氢具有更好的阻隔作用;将EVOH土工膜用在填埋场底部衬垫中,可以降低衬垫底部的污染物浓度;将EVOH土工膜用在填埋场覆盖层中,可以减小甲烷通量,降低臭气味的逸散面积;EOVH土工膜可以对填埋场衬垫和覆盖中起到优化作用。Landfills for household waste are one of the most important means of treating household waste in China.Geomembranes(GMs)are widely used in the liners and covers of landfills.A new GM,ethylene-vinyl alcohol copolymer(EVOH)GM was introduced in the proposed study.According to the existing researches,the EVOH GMs show the greater diffusive resistance to BTEX,methane and hydrogen sulfide than the traditional PE GMs.Using EVOH GM in a composite liner of a landfill can reduce the concentration of pollutants at the bottom of the liner.Incorporating an EVOH GM in a cover of a landfill should reduce methane emissions and odor impact significantly relative to a cover with a conventional GM.EOVH GMs can play an optimal role on the liners and covers of landfills.

关 键 词：填埋场 乙烯—乙烯醇共聚物 EVOH土工膜 PE土工膜 

分 类 号：X705[环境科学与工程—环境工程]