Study on Screening the High-Efficiency Predominant Bacteria for Decompounding the Organic Wastes in Rubber Industry Wastewater / 环境与健康杂志

ABSTRACT

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.