2-Mercaptobenzothiazole degradation in laboratory fed-batch systems.
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.
De Wever
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H
Laboratory for Industrial Microbiology and Biochemistry, Heverlee, Belgium.
Verachtert
H
H
D001419:Bacteria / Q000378:metabolism; D052160:Benzothiazoles; D001673:Biodegradation, Environmental; D001709:Biotechnology; D002617:Chemical Industry; D007220:Industrial Waste; D012408:Rubber; D013844:Thiazoles / Q000378:metabolism*
D052160:Benzothiazoles; D007220:Industrial Waste; D013844:Thiazoles; C005563:captax; D012408:Rubber; C005465:benzothiazole