| 新型A/O/A直流脱氮工艺处理焦化废水的研究 |
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| 引用本文： | 赵芳芳,彭娜,蔡建安.新型A/O/A直流脱氮工艺处理焦化废水的研究[J].中国给水排水,2008,24(19). |
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| 作者姓名： | 赵芳芳 彭娜 蔡建安 |
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| 作者单位： | 安徽工业大学建筑工程学院,安徽,马鞍山,243002 |
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| 摘 要： | 采用新型A／O／A直流脱氮工艺处理焦化废水，考察了对COD和NH4^＋ -N的去除效果。四个月的连续流试验表明，在进水COD平均为2470mg／L、NH4^＋ -N为102mg／L的条件下，系统出水COD和NH4^＋ -N平均浓度分别为120、10mg／L，达到了《污水综合排放标准》的二级标准。由于无回流，因而与工程上常用的A^2O^2工艺相比，动力消耗节省了约50％，而占地面积却仅为其1／3。前置厌氧池减轻了好氧段的负荷，改善了对COD的去除效果；出水分流则为缺氧池内的反硝化提供了较充足的碳源，避免了投加甲醇的额外花费。
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| 关 键 词： | 焦化废水 A／O／A工艺 脱氮 气升循环 MBR |
Study on A/O/A Direct-flow Nitrogen Removal Process for Treatment of Coking Wastewater |
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| ZHAO Fang-fang,PENG Na,CAI Jian-an.Study on A/O/A Direct-flow Nitrogen Removal Process for Treatment of Coking Wastewater[J].China Water & Wastewater,2008,24(19). |
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| Authors: | ZHAO Fang-fang PENG Na CAI Jian-an |
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| Affiliation: | ZHAO Fang-fang,PENG Na,CAI Jian-an(School of Architectural Engineering,Anhui University of Technology,Ma\'anshan 243002,China) |
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| Abstract: | The A/O/A direct-flow nitrogen removal process was used for treatment of wastewater from coking plants,and the removal efficiencies of COD and NH+4-N were investigated.The 4-month continuous-flow test results show that when the influent COD and NH+4-N are 2 470 mg/L and 102 mg/L,their effluent concentrations decrease to 120 mg/L and 10 mg/L respectively,meeting the secondary class criteria specified in Integrated Standard of Wastewater Discharge.Compared to the currently used A2O2 technique,the process cons... |
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| Keywords: | MBR |
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