| 微生物还原Cr(Ⅵ)的机理研究进展 |
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| 引用本文： | 徐天生,欧杰,马晨晨. 微生物还原Cr(Ⅵ)的机理研究进展[J]. 环境工程, 2015, 33(1): 32-36. DOI: 10.13205/j.hjgc.201501008 |
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| 作者姓名： | 徐天生 欧杰 马晨晨 |
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| 作者单位： | 1.上海海洋大学食品学院上海水产品加工及贮藏工程技术研究中心 |
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| 摘 要： | 含铬工业废水排放到环境中会对人体的健康和环境带来严重的危害。其中重金属铬的毒性会随着价态的变化而变化。微生物在代谢过程中可以将Cr(Ⅵ)还原为Cr(Ⅲ),从而降低Cr(Ⅵ)的毒性。从微生物还原Cr(Ⅵ)的机理类型,相关还原酶的基因特性,可还原Cr(Ⅵ)的微生物,影响还原的因素,Cr(Ⅵ)还原过程中存在的问题及发展前景等方面进行了综述。
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| 关 键 词： | CR( VI) 还原 微生物 机理 |
THE ENGINEERING APPLICATION OF BIOFOR TREATING MIXINGPHARMACEUTICAL WASTEWATER |
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| Abstract: | BIOFOr was applied to treat the mixing pharmaceutical wastewater． BIOFOr reactor started up quickly with themode of combination of natural hanging and vaccination hanging，and had a good performance，high resistance to impact loadcapacity，stable running． The average removal rate of COD and NH3 － N reached 72. 45% and 56. 8% respectively． Theeffluent indexes of BIOFOr could completely meet the Discharge Standard of Water Pollutants for Pharmaceutical IndustryMixing /Compounding and Formulation Category ( GB 21908 2008) ． The optimum gas-water ratio of BIOFOr was 5 ∶ 1．Combined air-water backwash mode was taken in BIOFOr． |
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| Keywords: | Cr(Ⅵ) reduction microbial mechanism |
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