渗滤液污染物在地下环境中的生物地球化学作用  

Biogeochemistry Process of Landfill Leachate Pollutants in Environment

作　　者：董军[1] 张晶 赵勇胜[1] 张伟红 吕爱民[1] 韩融[1] 刘莹莹[1] 李志斌[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026 [2]吉林省地质环境监测总站,长春130022

出　　处：《吉林大学学报（地球科学版）》2007年第3期587-591,共5页Journal of Jilin University：Earth Science Edition

基　　金：国家"973"项目(2004CB418505);国家自然科学基金项目(50478006);吉林大学"985"工程项目;吉林大学研究生创新中心资助

摘　　要：通过实验室土柱模拟实验,研究垃圾渗滤液污染晕中不同污染物的迁移转化规律和生物地球化学降解作用。实验结果表明:微生物在前28 d的增长速度较快,平均每天增长1.7×105个;TOC在土壤中以“梭形”向前迁移,而且微生物的增长对其衰减具有明显的影响;NH4+-N在土壤中以“活塞式”向前推进,其衰减和微生物的增长在短期内未见明显的关系;TOC在土壤中的迁移速度比NH4+-N的迁移速度快,TOC的迁移速度约为3.0 cm/d,而NH4+-N的迁移速度约为2.4 cm/d。A soil column was constructed to investigate transportation, transformation and the biogeochemistry process of the pollutants in the landfill leachate plume. Experimental results indicated that growth rate of microbes is high in the initial 28 days, and its average increase rate was 1.7 ×10^5 per day; TOC showed shuttle-shape migration in soil. Growth rate of microbes had great impacts on the TOC attenuation; N H4^＋ -N showed piston shape transportation in soil, and its attenuation had no obvious relation to microbes growth in short term. Migration rate of the TOC is higher than that of NH4^＋ -N; migration rate of TOC and NH^＋-N is about 3.0cm/d and 2.4 cm/d, respectively.

关 键 词：渗浅液污染 生物降解 衰减作用 污染晕 

分 类 号：X705[环境科学与工程—环境工程]