蚯蚓处理对脱水城市污泥性能的影响  

Effect of Earthworm Treatment on the Performance of Dewatered Municipal Sludge

作　　者：乔艳云[1] 宋志伟[1] 潘宇[1] QIAO Yan-yun;SONG Zhi-wei;PAN Yu(School of Environment and Chemical Engineering,Heilongjiang University of Science and Technology,Harbin,Helongjiang 150022)

机构地区：[1]黑龙江科技大学环境与化学工程学院环境工程系,黑龙江哈尔滨150022

出　　处：《安徽农业科学》2018年第27期59-61,共3页Journal of Anhui Agricultural Sciences

基　　金：哈尔滨市科学技术局项目(2015RAXXJ039);国家自然科学基金面上项目(51678222)

摘　　要：[目的]研究蚯蚓处理对脱水城市污泥性能的影响。[方法]以城市污水处理厂的脱水污泥作为研究对象,探讨蚯蚓处理对其性能的影响。[结果]新鲜脱水污泥经蚯蚓处理后,p H、有机质含量降低,EC值显著升高,使污泥性质趋于稳定,污泥的微生物活性增强,有害微生物得到抑制,全氮、全磷、全钾含量降低,速效氮、速效磷、速效钾含量升高。[结论]蚯蚓处理可以很好地实现污泥的减量化、无害化和资源化。[Objective]The research aimed to study the effect of earthworm treatment on the performance of dewatered municipal sludge.[Method]Taking the dewatered sludge of urban sewage treatment plant as the research object,the effect of earthworm treatment on its performance was discussed.[Result]After the treatment of the fresh dewatering sludge,the pH and the content of organic matter decreased,and the EC value increased significantly,making the sludge properties tend to be stable,the microbial activity of the sludge was enhanced,and the harmful microbes were suppressed.The content of total nitrogen,total phosphorus and total potassium decreased,and the content of available nitrogen,available phosphorus and available potassium increased.[Conclusion]That earthworm treatment can achieve reduction,innocuous and resourceful of the sludge.

关 键 词：蚯蚓 城市污泥 脱水 性能 

分 类 号：X705[环境科学与工程—环境工程]