摘要
为筛选降解含油废水中石油烃的好氧降解菌株,选用炼油厂石油废水处理站曝气池活性污泥作为菌源,采用平板分离,得到39株菌。利用得到的菌株对含油废水中的CODCr和油进行降解效果试验,并进行混合菌的联合试验,确定出混合菌中假单胞菌(Pseudomonas sp)和芽孢杆菌(Bacillus sp)为优势菌属。通过单株菌与混合菌降解试验的比较,结果表明全混合菌的降解效果明显优于单株菌,从而说明共代谢作用增强了微生物的降解能力。试验表明,经过驯化后的混合菌,其降解效率稳定。
In order to screen the aeration bacteria for degrading petroleum compounds in oily wastewater, the activated sludge from aeration pond of Refinary works is selected as the source of bacteria. 39 strains of bacteria are isolated by the plane-table method. Single bacteria and groups of mixed culture are used respectively to degrade oily wastewater. According to the removal ratios of the CODer and oil, the dominant bacteria （Pseudomonas, Bacillus） are obtained. The removal ratios of mixed culture are much higher than that of the single strain. It shows that co-metabolism can greatly enhance the degradation role of microbe and it can be still enhanced after being acclimatized.
出处
《浙江科技学院学报》
CAS
2007年第2期121-124,共4页
Journal of Zhejiang University of Science and Technology
基金
浙江省自然科学基金重大项目(Z504107)
黑龙江省科技攻关项目(G99G7-4)
关键词
筛选
含油废水
除油
好氧降解菌
screen
oily wastewater
degradation of oil
aeration bacteria
