降解橡胶工业有机废水高效优势菌的筛选研究

目的筛选降解含橡胶促进剂M盐(2-硫醇基苯并噻唑)有机废水的高效优势菌。方法从生产环境采集有机废水样，经初步筛选分离和功能试验获得优势菌，继而进行模拟现场群体降解试验，优势菌进一步富集后再次进行筛选和鉴定，选取高效优势菌。结果初步筛选优势菌75株，以其混合菌液驯化后进行模拟现场群体降解试验，COD清除率为60．8％～97．9％，平均为77．2％，可见高效优势菌附着于活性炭载体表面形成生物膜，再次筛选鉴定以蜡样芽胞杆菌占绝对优势(90％)。结论高效优势菌技术可用于M盐有机废水的处理。

Study on Screening the High-Efficiency Predominant Bacteria for Decompounding the Organic Wastes in Rubber Industry Wastewater

Objective To screen the high-efficiency predominant bacteria which can decompound 2-mercaptobenzothiazole, the accelerant for producing latex, in the organic wastewater. Methods Sampling from manufacturing environment, we got the predominant bacteria by primary screening, isolating and functional tests, and performed simulated test ground decompounding tests by using all bacteria. The enrichment of the predominant bacteria was followed by screen and identification to select the high-efficiency bacteria. Results 75 strains of predominant bacteria were obtained by primary screening. The simulated decompounding tests were performed after the mixed bacteria were tamed. The ratio of elimination for chemical oxygen demand (COD) was about 60.8%-97.7%, and the average was 77.2%. The predominant bacteria adhered to the surface of the active carbon, the carrier, and formed the biological film. Through screening and identification the Bacillus cereus showed to be predominant (90%). Conclusion The technology of high-efficiency predominant bacteria can be used for decompounding 2-mercaptobenzothiazole in the organic wastewater.