| MBR工艺处理含50%海水的污水试验研究 |
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| 引用本文： | 李津,于德爽,王琪,李烨,任晓晶.MBR工艺处理含50%海水的污水试验研究[J].环境工程学报,2009,3(11):1947-1950. |
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| 作者姓名： | 李津 于德爽 王琪 李烨 任晓晶 |
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| 作者单位： | 1. 中国科学院生态环境研究中心环境水质学国家重点实验室,北京,100085
2. 青岛大学化学化工与环境学院,青岛,266071 |
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| 基金项目： | 国家自然科学基金资助项目（50678085） |
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| 摘 要： | 采用MBR工艺对含50%海水的污水生物处理进行了试验研究。实验条件为进水COD为300～2 600 mg/L，NH3-N为50～300 mg/L，pH值为6～9，混合液污泥浓度为7 000 mg/L，溶解氧浓度为2～4 mg/L，温度为20～25℃。试验结果表明，系统的最佳运行条件为：有机负荷＜3.2 kg COD/（m3·d），氨氮负荷＜0.35 kg/（m3·d），pH值在7.5～8.5之间，HRT＞12 h。在此条件下，COD与氨氮的去除率可同时达到90%。高盐环境下微生物所分泌的大量胞外多聚物是造成MBR工艺处理含盐废水过程中膜污染的主要原因。
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| 关 键 词： | MBR工艺 有机负荷 氨氮负荷 pH值 HRT 膜污染 |
Experimental study on treatment of wastewater containing 50% seawater by MBR process |
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| Li Jin,Yu Deshuang,Wang Qi,Li Ye and Ren Xiaojing.Experimental study on treatment of wastewater containing 50% seawater by MBR process[J].Techniques and Equipment for Environmental Pollution Control,2009,3(11):1947-1950. |
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| Authors: | Li Jin Yu Deshuang Wang Qi Li Ye and Ren Xiaojing |
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| Institution: | State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,China,School of Chemical and Environmental Engineering,Qingdao University,Qingdao 266071,China,State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,China,State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,China and State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,China |
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| Abstract: | MBR process is used to treat wastewater containing 50% seawater under the conditions as be-lows: COD is 300～2 600 mg/L,NH_3-N is 50～300 mg/L,pH is 6～9,MLSS is 7 000 mg/L,DO is 2～4 mg/L, temperature is 20～25 ℃. The results show that both COD and NH_3-N removal can reach 90% under the best conditions as belows: organic loading and ammonia loading are less than 3.2 kg COD/(m~3·d) and 0. 35 kg/ (m~3·d) respectively, pH is between 7. 5 and 8. 5 , HRT is more than 12 h. The extracellular polymeric sub-stances (EPS) which are excreted by microorganism devote to membrane fouling largely in the process. |
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| Keywords: | MBR process organic loading rates ammonia loading rates pH HRT membrane fouling |
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