| 硫酸盐生物还原法处理含锌废水 |
| 摘要点击 2793 全文点击 2007 投稿时间：1994-10-11 |
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| 中文关键词 硫酸盐还原菌 重金属废水 上流式厌氧污泥床 |
| 英文关键词 sulfate reducing bacteria heavy metal wastewater upflow anaerobic sludge bed reactor |
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| 中文摘要 |
| 研究了用硫酸盐还原菌处理含锌废水的污泥床工艺及影响运行的主要因素。结果表明,该工艺可在进水COD和锌浓度分别为320mg/L与100mg/L时有效运行,有机物和Zn2+的去除率分别达到73.8%和99.63%。在水力滞留时间降至6h时,Zn2+的去除率仍可达94.55%。进水Zn2+浓度低于500mg/L时装置可以稳定运行,而当浓度达到600mg/L时,硫酸盐还原茵受到Zn2+的明显毒害。当进水COD 1500mg/L、Zn2+500mg/L,水力滞留时间为9h时,装置的Zn2+容积去除率可达1329mg/(L·d)。 |
| 英文摘要 |
| A process for the treatment of Zn2+ containing wastewater by sulfate-reducing bacteria in an upflow anaerobic sludge bed reactor has been studied. When the concentrations of COD and Zn2in influent were 320 mg/L and 100 mg/L,respectively,the reactor could be successfully operated. Under this condition the removal rates of COD and Zn2+ were 73.8% and 99.8% respectively. When the concentration of Zn2+ was less than 500 mg/L the reactor was operated successfully. Whereas when the Zn2+ concentration in influent was higher than 500 mg/L the activity of the sulfate-reducing bacteria was suppressed by Zn2+. When the Zn2+ concentration was 500 mg/L and the retention time was 9h,the reactor had a volume removal rate of Zn2+ reaching as high as 1329 mg/(L·d). |
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