将抗逆性较强的赤子爱胜蚓和微小双胸蚓引人生态滤床, 使蚯蚓在微生物的协同作用下分别对垃圾渗滤液进行净
化处理。结果表明在净化垃圾渗滤液中的C O D 方面, 微小双胸蚓的处理效果明显强于赤子爱胜蚓; 在净化垃圾渗滤液中的
N H 3
- N 方面和改善垃圾渗滤液的p H 方面, 两种蚯蚓的处理效果基本相同。根据两种蚯蚓处理垃圾渗滤液过程中对胁迫生态环
The findings of a series of studies investigating the clogging of leachate collection and drainage systems for municipal landfill sites are described. Batch tests, column studies, and field-scale “mesocosm” test cells were used to study the development of a thick microbial biofilm covering the surfaces and filling the pore space of the granular drainage media. Within this biofilm, anaerobic microbial consortia effect the stabilization of the organic load (expressed as chemical oxygen demand), with the concurrent precipitation within the granular drainage system of various minerals dominated by calcite.
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