کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4980104 1453039 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microaerobic degradation of 2-Mercaptobenzothiazole present in industrial wastewater
ترجمه فارسی عنوان
تخریب میکروآبروبی 2-موراپپتو بنسوتیازول موجود در فاضلاب صنعتی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
Microaerobic degradation of 2-Mercaptobenzothiazole (2-MBT) was investigated using an isolated bacterial strain CSMB1. It was identified as Alcaligenes sp. MH146 by genomic analysis. The isolate degraded 50 mg/L concentration of 2-MBT which was measured in terms of Total organic carbon (TOC) (700 mg/L). A maximum degradation of 86% with a residual TOC concentration of 101 mg/L was obtained after 72 h, with the biomass growth of 290 mg/L. The presence of specific activity of catechol 2, 3 oxygenase was observed in all the tested derivatives of benzothiazoles and the benzene ring opening was observed through meta cleavage. By analyzing the 72 h incubated culture supernatant, 2-MBT, and all its biotransformed products were degraded into polar compounds. With the analytical results obtained, a possible microaerobic degradative pathway was proposed and illustrated for 2-MBT. It is concluded that microaerophilic isolate CSMB1 was able to degrade 2-MBT and its intermediates by utilizing them as sole carbon and energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 321, 5 January 2017, Pages 773-781
نویسندگان
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