准好氧垃圾填埋场渗滤液中重金属Fe的迁移规律  

Study on Transfer Regularity of Heavy Metal Iron in the Leachate from Semi-aerobic Landfill in the Lab

作　　者：杨敏[1] 杨巧艳[1,2] 薛丹丹[1] 

机构地区：[1]西南交通大学环境科学与工程学院,四川成都610031 [2]西南交通大学峨眉校区,四川峨眉614202

出　　处：《污染防治技术》2009年第2期5-7,21,共4页Pollution Control Technology

摘　　要：通过室内垃圾模拟柱的实验,研究了铁在准好氧填埋场垃圾降解过程中的迁移规律,并根据渗滤液中的pH和COD的变化,对铁的浓度影响进行了详细分析。结果表明,铁在垃圾降解过程中呈现出先增大后减小的趋势,并在垃圾填埋120 d后达到最大值32.12 mg/L,这为今后有效控制准好氧填埋场中重金属的二次污染问题提供了理论依据。By the experiment of semi - aerobic landfill in the lab, the transfer regularity of iron in the process of waste decomposition is studied, and according to the changes of pH and COD in the leachate, the concentration of iron is analysed detailedly. The results show that the concentration of iron is gradually increased firstly and then is slowly decreased in the process of waste decomposition to reach a maximum of 32.12 mg/L after 120 days. It provides the theoretical basis for effectively controlling the heavy - metal secondary pollution in the semi -aerobic landfill.

关 键 词：准好氧填埋场 渗滤液 铁 迁移规律 

分 类 号：X705[环境科学与工程—环境工程]