| PAC-MBR工艺处理微污染地表水的研究 |
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| 引用本文： | 张江朝,顾平,米宝霞.PAC-MBR工艺处理微污染地表水的研究[J].天津大学学报(英文版),2002,8(3):159-164. |
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| 作者姓名： | 张江朝 顾平 米宝霞 |
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| 作者单位： | 天津大学环境科学与工程学院,天津,300072 |
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| 基金项目： | SupportedbyTianjinMunicipalScienceandTechnologyCommission (No.0 1 31 0 52 1 1 ) |
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| 摘 要： | 设计了膜生物反应器 (MBR)与粉末活性炭 (PAC)联合使用的膜组合工艺 (PAC MBR)处理微污染地表水 ,并用分子量分析方法来考察PAC MBR组合工艺及各单元工艺对有机物的去除效果 .分析结果表明 ,由于原水中的小分子有机物难生物降解 ,该工艺出水有机物集中在小于 1k的分子量区间内 ,活性炭的投加能显著提高这部分有机物的去除率 .试验证明 ,PAC MBR工艺中生物处理与活性炭吸附互相促进 ,在稳定运行阶段对CODMn、UV2 54 、UV4 10 和氨氮的去除率分别达到 70 %、70 %、10 0 %和 92 % .
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| 关 键 词： | 膜生物反应器 粉末活性炭 中空纤维膜 微滤 微污染 有机物 分子量分布 |
Micro-Polluted Surface Water Treatment by PAC-MBR Process |
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| ZHANG Jiang-zhao,GU Ping,MI Bao-xia.Micro-Polluted Surface Water Treatment by PAC-MBR Process[J].Transactions of Tianjin University,2002,8(3):159-164. |
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| Authors: | ZHANG Jiang-zhao GU Ping MI Bao-xia |
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| Abstract: | A kind of hybrid membrane process, which integrated powdered activated carbon (PAC) with membrane bioreactor (MBR), was designed for bench scale experiment for micro-polluted surface water treatment. Molecular weight analysis was used to evaluate the efficiency of each unit process and the integration of them. The result of analysis indicated that organic molecules in the treated water from PAC-MBR process were concentrated on the section of below 1000, while PAC adsorption could enhance the removal efficiency of this section due to the high percent of biodegradation recalcitrant organic matter with low molecular weight. It was demonstrated that PAC adsorption and biological treatment promoted each other in PAC-MBR process, with a removal efficiency of 70% for COD Mn and UV 254, 100% for UV 410 and 92% for ammonia nitrogen in its stable stage. |
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| Keywords: | membrane bioreactor (MBR) powdered activated carbon (PAC) hollow fiber membrane microfiltration (MF) micro-pollution organic matter molecular weight distribution |
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