| 不同工况耦合生物反应器处理低C/N比生活污水试验 |
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| 引用本文： | 李军,张宁,杨海燕,李艺,张韵,周婷.不同工况耦合生物反应器处理低C/N比生活污水试验[J].环境工程,2006,24(3):23-25,28. |
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| 作者姓名： | 李军 张宁 杨海燕 李艺 张韵 周婷 |
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| 作者单位： | 1. 北京工业大学,北京市水质科学与水环境恢复工程重点实验室,北京,100022
2. 北京市市政工程设计研究总院,北京,100035 |
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| 基金项目： | 北京市自然科学基金
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高比容电子铝箔的研究开发与应用项目
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北京市教委资助项目 |
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| 摘 要： | 在全程好氧工况或低氧+厌氧+好氧工况下,采用耦合生物反应器处理低CN生活污水和污泥减量的试验结果表明:在进水CODCr负荷0.80～1.20kg(m3·d)、NH+4N浓度70～90mgL、TN浓度75～110mgL、HRT=8h、温度约25℃条件下,CODCr和NH4N去除率均可达85%和90%以上;采用低氧+厌氧+好氧工况较全程好氧工况具有更高的TN去除率和更低的污泥产率,其TN去除率高达81.1%,污泥产率为0.065kgkg。
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| 关 键 词： | 耦合生物反应器 低C/N 低氧 污泥减量 |
| 收稿时间： | 2005-11-18 |
| 修稿时间： | 2005-11-18 |
EXPERIMENT ON THE COUPLING BIOREACTOR FOR THE DOMESTIC WASTEWATER TREATMENT OF LOW C/N RATIO IN DIFFERENT OPERATING MODES |
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| Li Jun Zhang Ning Yang Haiyan et al.EXPERIMENT ON THE COUPLING BIOREACTOR FOR THE DOMESTIC WASTEWATER TREATMENT OF LOW C/N RATIO IN DIFFERENT OPERATING MODES[J].Environmental Engineering,2006,24(3):23-25,28. |
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| Authors: | Li Jun Zhang Ning Yang Haiyan |
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| Institution: | Li Jun Zhang Ning Yang Haiyan et al |
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| Abstract: | In two different operating modes of complete-aeration or micro-aeration+anoxic+aeration,high C/N ratio domestic wastewater was treated by coupling bioreactor.The influent loading of COD_ Cr was 0.80～1.20 kg/(m~3·d),concentrations of NH~+_4-N,TN were among 70～ 90 mg/L and 75～110 mg/L,HRT and temperature in bioreactor were 8 hours and 25 ℃ respectively.Results show that the coupling bioreactor keeps a constant COD_ Cr removal rate above 85%,as well as removal rate of NH~+_4-N more than 90%.Further more,test indicates that the removal rate of TN is higher and the production of sludge is lower in the process of micro-aeration+anoxic+aeration than the other one,with the TN removal efficiency of 81.1%,the average sludge production rate of 0.065 kg MLSS/kg COD_ Cr. |
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| Keywords: | coupling bioreactor low C/N ratio low DO and sludge reduction |
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