• 关键词：可渗透反应屏障  释氧剂  渗滤液  原位处理

• 基金项目：吉林省杰出青年基金(NO.1173);吉林大学创新基金(403010123016);国土资源部水环境和水问题重点实验室资助

• 董军
• 吉林大学环境与资源学院,长春130026

• 赵勇胜
• 吉林大学环境与资源学院,长春130026

• 黄奇文
• 东北煤田地质局勘察设计研究总院,沈阳110011

• 陈延君
• 吉林大学环境与资源学院,长春130026

• 摘要：设计了双层结构可渗透反应屏障(PRB), 对渗滤液污染地下水原位处理的可行性进行实验研究。 其中, 第一反应器主要填充了零价铁, 对复杂的不可生物降解和难生物降解的卤代烃等有机物进行分解; 第二反应器主要填充了释氧剂(ORC), 对有机物进行彻底的处理。 实验结果表明:经过第一反应器后BOD⁵COD值由0.32升高至0.75, 铵离子和硝酸根离子的去除率分别达到85%和80%; ORC反应器最大释氧量为7.64mg·L^-1。 采用双层PRB结构治理渗滤液污染地下

• Abstract：A double layer Permeable Reactive Barrier (PRB) experiment was designed to study the feasibility of in-situ remediation of groundwater contaminated by landfill leachate. Zero valent iron (ZVI) was used in the first reactor as fillings to decompose complex non-degradable and less degradable organics such as halocarbon. Then the second reactor was used to treat organic compound completely. It was an ORC reactor filled with Oxygen Release Compounds. The results indicated that the value BOD₅/COD increased from 0.32 to 0.75 after through the first reactor. The removal ratio of ammonium and nitrate went up to 85% and 80%, respectively; and the maximum concentration of dissolved oxygen (DO)released by the ORC reactor went up to 7.64mg·L^-1. Hence, a double layer PRB to treat leachate-polluted groundwater is feasible to application.

• Key words：PRB(permeable reactive barrier)  ORC(oxygen release compounds)  leachate  in-situ remediation

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