摘要
[目的]为了分离、筛选出Orbal氧化沟中高效降解菌。[方法]以肉膏蛋白胨培养基为基质,对某城市污水处理厂Orbal氧化沟中的微生物进行接种培养,并将分离纯化得到的菌株进行COD降解试验。[结果]筛选出5株具有较高降解能力的细菌,经过2次复筛得到3株能高效降解废水且降解效果稳定的细菌。研究表明,大多数细菌在18h左右降解效率达到最高值。[结论]这对于污水处理厂高效运行具有实际意义。
[Objective]The research aimed to isolate and screen high efficient degrading bacteria in orbal oxidation ditch.[Method] Microscopic examination for the activated sludge sample was operated in the orbal oxidation ditch in the city sewage treatment plant,inoculated and cultured the microbial in the sample with extract broth as substrate.[Result] Five bacteria which had some biodegradability for COD were filtrated out.After two times compound filtrated,three bacteria were separated which could degrade wastewater sufficiently and the degrading results were stable.And the examination showed that the degrading rate of most strains reached highest point at about 18 hours.[Conclusion] The research had the practical significance for the efficient operation of the sewage treatment plants.
出处
《安徽农业科学》
CAS
北大核心
2011年第16期9776-9777,9872,共3页
Journal of Anhui Agricultural Sciences
关键词
高效降解菌
分离
筛选
Effective degradation strains
Isolation
Screening
