摘要
[目的]探索城市污泥的利用途径。[方法]利用赤子爱胜蚓、大平2号、威廉环毛蚓3个蚯蚓品种处理城市生活污泥，以未接种蚯蚓为对照（CK），研究接种不同品种蚯蚓的污泥理化性质、氮、磷、钾含量、重金属含量以及蚯蚓生物量的变化。[结果]3种蚯蚓对污泥的矿化、降解能力基本一致。接种赤子爱胜蚓、大平2号及威廉环毛蚯蚓城市污泥的pH，均低于CK，城市污泥的氮、磷、钾含量均较CK增加，污泥中重金属含量降低。试验结束后，3种蚯蚓的生物量无差异显著。[结论]利用蚯蚓处理城市污泥是一条无害化有效途径。
Abstract
Objective] To explore the use of urban sludge.[Method] With not inoculated earthworm as control(CK),E.foeitda,OhiraⅡearth-worm,Pheretima guillemi were used to process urban sewage sludge ,the changes of sludge physiochemical properties ,N,P,K content, heavy metal content and earthworm biomass were studied.[Result] The ability of mineralization and degradation of 3 kinds of earthworms was basically the same.The pH value of urban sludge inoculated with E.foetida,OhiraⅡearthworm,Pheretima guillemi were lower than that of CK.The contents of N,P and K in municipal sludge were increased compared with CK ,and the content of heavy metals in sludge was decreased .At the end of experi-ment,the biomass of 3 kinds of earthworms showed no significant difference.[Conclusion] It is an effective and harmless way to deal with urban sludge by using earthworm.
基金项目
2015年河南省科技攻关项目(152102310034)
国家科技期刊平台
NSTL
维普
万方数据