De Vos D, De Wever H, Verachtert H
Catholic University of Leuven, Laboratory of Industrial Microbiology and Biochemistry, Heverlee, Belgium.
Appl Microbiol Biotechnol. 1993 Jul;39(4-5):622-6. doi: 10.1007/BF00205064.
It was found that benzothiazole, 2-oxybenzothiazole and 2-benzothiazolesulphonate were degraded in activated sludge systems. 2-Mercaptobenzothiazole (MBT) was more resistant, although the first step in MBT degradation seemed to be transformation to the sulphonate form. At higher MBT concentrations, it was transformed into a disulphide, which accumulated in the sludge. MBT was also found to be mainly responsible for the toxicity of rubber chemical waste-water towards activated sludges. It inhibited the degradation of the other heterocycles. Only at concentrations of around 20 ppm was MBT degraded. Mercaptobenzimidazole ranked second in resistance to degradation.
研究发现，苯并噻唑、2-羟基苯并噻唑和2-苯并噻唑磺酸盐在活性污泥系统中会被降解。2-巯基苯并噻唑（MBT）更具抗性，尽管MBT降解的第一步似乎是转化为磺酸盐形式。在较高的MBT浓度下，它会转化为二硫化物，并在污泥中积累。还发现MBT是橡胶化工废水对活性污泥产生毒性的主要原因。它抑制了其他杂环化合物的降解。只有在浓度约为20 ppm时，MBT才会被降解。巯基苯并咪唑在抗降解性方面排名第二。
