实验室补料分批培养系统中2-巯基苯并噻唑的降解

2-Mercaptobenzothiazole degradation in laboratory fed-batch systems.

作者信息

De Wever H, Verachtert H

机构信息

Laboratory for Industrial Microbiology and Biochemistry, Heverlee, Belgium.

出版信息

Appl Microbiol Biotechnol. 1994 Dec;42(4):623-30. doi: 10.1007/BF00173930.

DOI:10.1007/BF00173930

PMID:7765736

Abstract

Rubber additives manufacture yields waste-waters with recalcitrant and/or toxic benzothiazole compounds. Biodegradation of such compounds was investigated in fed-batch systems. 2-Mercaptobenzothiazole (MBT) was best degraded by a mixture of MBT-history and non-MBT-history sludge. Concentrations up to 200 mg.l-1 were removed. From 100 mg.l-1 onwards, high percentages of the recalcitrant disulphide were accumulated in the sludge. MBT slowed down the biodegradation of benzothiazole-2-sulphonate. MBT and benzothiazole did not mutually influence their degradation. Under some experimental conditions high levels of unidentified so-called polar compounds were formed.

摘要

橡胶添加剂生产会产生含有难降解和/或有毒苯并噻唑化合物的废水。在分批补料系统中研究了此类化合物的生物降解。2-巯基苯并噻唑（MBT）在有MBT处理史和无MBT处理史的污泥混合物作用下降解效果最佳。去除浓度高达200mg·l-1的MBT。从100mg·l-1起，难降解的二硫化物在污泥中大量积累。MBT减缓了苯并噻唑-2-磺酸盐的生物降解。MBT和苯并噻唑之间没有相互影响其降解。在某些实验条件下，会形成大量未鉴定的所谓极性化合物。