| A~2/O生物膜系统处理焦化废水的影响因素分析 |
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| 引用本文： | 师立兵.A~2/O生物膜系统处理焦化废水的影响因素分析[J].煤化工,2009,37(2). |
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| 作者姓名： | 师立兵 |
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| 作者单位： | 太原煤气化股份有限公司焦化厂,太原,030024 |
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| 摘 要： | 介绍了太原煤气化公司焦化厂A2/O生物膜系统的运行特点,分析了处理焦化废水的影响因素。生产运行表明,当好氧段水力停留时间为28h、出水pH值7.7～8.0、剩余碱度为150mg/L～200mg/L、混合液回流比控制在3时,系统对COD去除率在85%以上,对氨氮的去除率可达96%以上,出水COD质量浓度平均低于150mg/L,氨氮质量浓度低于15mg/L。
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| 关 键 词： | A2/O生物膜系统 焦化废水 水力停留时间 碱度 混合液回流比 |
Influence Factors to A2/O Bio-film System for Wastewater Treatment in a Coking Plant |
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| Shi Libing.Influence Factors to A2/O Bio-film System for Wastewater Treatment in a Coking Plant[J].Coal Chemical Industry,2009,37(2). |
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| Authors: | Shi Libing |
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| Affiliation: | Shi Libing(Taiyuan Coal Gasification(Group) Co.; Ltd.; Taiyuan 030024); |
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| Abstract: | The anaerobic-anoxic-aerobic bio-film system of Taiyuan Coal Gasification(Group) Corporation,Limited was presented in this paper.Influence factors to waste water treatment were analyzed as well.It came out that the optimum conditions for organic and nitrogen removal were:(1)Hydraulic retention time(HRT) in aerobic reactor was 28h.(2) The pH value in aerobic reactor ranged from 7.7 to 8.0.The remaining alkalinity in effluent was 150mg/L-200mg/L.(3)The intermixture reflux ratio was 3.Given the above condition... |
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| Keywords: | A2/O bio-film system coking wastewater HRT alkalinity intermixture reflux ratio |
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