摘要
基于自行研制的膨润土-水泥-粉煤灰(BCF)浆材和柔壁渗透仪,采用人工配制的重金属离子溶液和有机溶液,以及取自垃圾填埋场的渗沥液对不同高度浆材结石体进行了渗滤试验,试验证明:由于渗滤沉积作用和吸附滞留作用,浆材结石体对Hg、As、Pb、Cr、Cd等重金属污染物的95%,苯酚、苯胺、萘和邻苯二甲酸二丁酯等有机污染物的96%,以及NH4+-N、TN、TP、COD、BOD5等垃圾渗沥液中污染物的60%阻滞在开始渗滤的30 mm范围内,而且随着试样高度增加,对各种污染物的阻滞率基本呈现增大的趋势,并有一定的规律可循。
Based on self-developed bentonite-cement-fly ash（BCF）slurry and flexible wall permeameter,infiltration test was conducted on slurry concretion samples of different heights using heavy metal ions solution and organic solution and leachate from waste landfill site.Test proved that as a result of the infiltration deposition and adsorption residence performance,retardation by slurry concretion happened in 30mm of initial infiltration to 95% of heavy metal ion contamination of Hg,As,Pb,Cr,Cd,96% of organic contamination including phenol,anoline,naphthalene,dibutyl phthalate and 60% of waste leachate contamination such as NH4＋-N,TN,TP,COD,BOD5.Blocking rate for all contaminations presents an increasing trend along with the increase of height of slurry concretion samples in a defined way.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2012年第2期46-50,共5页
Environmental Science & Technology
基金
吉林省科技支撑计划社会发展重点项目资助(20090417)
吉林省教育厅"十一五"科技研究重点项目资助(2010-191)
关键词
垃圾填埋场
防渗浆材
污染物
阻滞规律
waste landfill site
antiseepage slurry
contaminant
retardation rule
