不同岩性渗滤液污染场地中污染物衰减的模拟  

Simulation Research on Attenuation of Contaminants in Different Lithology Landfill Leachate Contaminated Sites

作　　者：刘莹莹[1] 赵勇胜[1] 刘鹏[1] 董军[1] 韩融[2] 屈智慧[1] 马百文[1] 杨玲[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026 [2]清华大学环境科学与工程系,北京100084

出　　处：《吉林大学学报（地球科学版）》2009年第1期137-141,共5页Journal of Jilin University：Earth Science Edition

基　　金：国家“863”计划重大项目(2007AA06A410);吉林大学“985工程”研究生创新基金项目(20080113)

摘　　要：选用细砂、粉砂、粘土和土壤为材料,通过4个系列的静态实验来研究不同岩性的垃圾渗滤液污染场地中pH、NO3-N、NH4-N、有机质及生物活性随时间的变化趋势及其相关性分析。实验结果表明,对于4种介质的pH而言,细砂>粉砂>粘土>土壤;对于NH4-N、有机质和生物活性而言,均为土壤>粘土>粉砂>细砂;而对于NO3-N而言,实验初期是土壤>粘土>粉砂>细砂,中期是细砂>粉砂>粘土>土壤,末期是土壤>细砂>粉砂>粘土。同时,综合4种介质中各指标的时间变化趋势利用SPSS进行相关性分析得到,在模拟垃圾渗滤液的污染场地中pH与有机质有很好的负相关性,相关系数为-0.649;有机质与生物活性有很好的正相关性,相关系数为0.640;NH4-N与生物活性有很好的正相关性,相关系数为0.757。The four static experiments selected fine sand, silt sand, clay and soil were carried out to investigate the temporal changing trend of pH, NO3-N, NH4-N, organic matter, bioactivity and its＇ correlation in different lithology landfill leachate contaminated sites. Experimental results indicated that the order of the four media for pH was fine sand 〉silt sand 〉clay 〉soil, for ammonia nitrogen, organic matter and bioactivity was soil 〉clay 〉silty sand 〉fine sand, but for nitrate nitrogen, the order in the initial phase was soil 〉clay 〉 silt sand 〉fine sand, in the metaphase was fine sand 〉 silt sand 〉clay 〉soil, but at the end of the experiment was soil 〉fine sand 〉 silt sand 〉clay. In addition, SPSS was used to analyze the general temporal correlation of the indexes in the four media. Results showed that there existed a good negative correlation between pH and organic matter, and the correla- tion coefficient was -0. 649. However, there existed a good positive correlation between organic matter and bioactivity, and the correlation coefficient was 0. 640. There existed a good positive correlation between ammonia nitrogen and bioactivity, and the correlation coefficient was 0. 757.

关 键 词：岩性 垃圾渗滤液 污染场地 污染物 衰减 

分 类 号：X705[环境科学与工程—环境工程]