| 电辅助微生物反应器降解苯并噻唑效能的研究 |
| 摘要点击 1845 全文点击 847 投稿时间：2014-03-30 修订日期：2014-05-05 |
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| 中文关键词 电辅助微生物反应器 苯并噻唑 阳极微生物 共基质 2-羟基苯并噻唑 |
| 英文关键词 electro-assisted microbial reactor benzothiazole(BTH) anodophilic microbes co-substrate 2-hydroxy-benzothiazole |
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| 中文摘要 |
| 本研究采用单室电辅助微生物反应器（EAMR）氧化苯并噻唑（BTH），考察了外加电压和COD/BTH对BTH降解效能的影响. 结果发现，BTH在阳极氧化降解为2-羟基苯并噻唑（OHBT）后，噻唑环断裂，最终转化为2-甲磺酰基苯胺；BTH的降解过程符合表观一级动力学规律，并且提高外加电压和引入共基质代谢作用均能提高BTH的降解反应速率常数；在外加电压0.7 V和COD/BTH值为30：1时，48 h后BTH的降解率可以达到96%，实现了BTH类废水的高效脱毒，为后续生物处理创造了有利的条件. |
| 英文摘要 |
| The oxidative degradation of benzothiazole (BTH) in a single-chamber electro-assisted microbial reactor was investigated. The effects of applied voltage and COD/BTH ratio on the performance of degrading benzothiazole were studied. The research showed that BTH was oxidized to 2-hydroxy-benzothiazole (OHBT), then thiazole ring scission, and BTH translated into 2-methylsulfonylaniline eventually. The degrading of benzothiazole was in conformity with the pseudo first-order kinetic model, and the pseudo first-order kinetic constant can be increased by raising the applied voltage and co-metabolism. When the applied voltage was 0.7 V and COD/BTH ratio was 30, the degradation rate was 96% in 48 h, achieving the detoxification of BTH, and that is advantageous to the biochemical treatment. |
