| 剩余污泥水解酸化过程中胞外聚合物的影响因素研究 |
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| 引用本文： | 高永青,彭永臻,王建龙,王少坡,张晶宇.剩余污泥水解酸化过程中胞外聚合物的影响因素研究[J].中国环境科学,2010,30(1):58-63. |
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| 作者姓名： | 高永青 彭永臻 王建龙 王少坡 张晶宇 |
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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,北京,100124
2. 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,北京100124;北京建筑工程学院环境与能源工程学院,北京100044 |
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| 基金项目： | 北京市高校人才强教深化计划高层次人才资助项目，国家自然科学基金资助项目，"城市水资源与水环境国家重点实验室"开放基金项目 |
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| 摘 要： | 为了解胞外聚合物(EPS)对污泥水解酸化处理的影响,采用批量试验研究了污泥厌氧水解酸化处理过程中EPS的变化以及温度、pH值、污泥来源、污泥浓度对其的影响.结果表明,pH值和污泥来源对EPS产率、成分有显著的影响.强酸性和强碱性条件下污泥水解过程中溶解性EPS产率是中性条件下的2倍多;强酸性条件下细胞破裂较多,DNA物质占总EPS含量的20%左右;强碱性条件多糖类物质溶出量占总EPS的80%以上.A/O工艺污泥水解酸化EPS产率最大,平均值为41.1mg/gVSS;其次为SBR、氧化沟(OD)和A2/O工艺污泥,其中OD工艺污泥水解酸化产生的EPS中糖类与蛋白质的质量比(φ)值远小于其他工艺污泥.温度由18℃升高至35℃时,溶解性EPS产率增加近50%,多糖所占比例逐渐增大.污泥浓度由2000mg/L升高至6000mg/L,EPS产率增大至38.1mg/gVSS,当污泥浓度达到8000mg/L时,EPS产率明显减少(23.1mg/gVSS).
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| 关 键 词： | 剩余污泥 水解酸化 EPS产率 |
| 收稿时间： | 2009-05-15; |
Influencial factors of extracellular polymer substances in activated sludge hydrolysis and acidification |
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| GAO Yong-qing,PENG Yong-zhen,WANG Jian-long,WANG Shao-po,Zhang Jing-yu.Influencial factors of extracellular polymer substances in activated sludge hydrolysis and acidification[J].China Environmental Science,2010,30(1):58-63. |
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| Authors: | GAO Yong-qing PENG Yong-zhen WANG Jian-long WANG Shao-po Zhang Jing-yu |
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| Institution: | GAO Yong-qing1,PENG Yong-zhen1,WANG Jian-long1,2,WANG Shao-po1,Zhang Jing-yu1(1.Key Laboratory of Beijing for Water Quality Science , Water Environment Recovery Engineering,Beijing University of Technology,Beijing 100124,China,2.School of Environmental , Energy Engineering,Beijing University of Civil Engineering , Architecture,Beijing 100044,China). |
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| Abstract: | Variation of extracellular polymer substances(EPS) during activated sludge hydrolysis-acidification process and influencial factors including temperature,pH,sludge characteristic and sludge concentration were investigated at ambient temperature by batch experiments.pH and sludge characteristic had an important effect on the EPS composition and amount.Under strong acidic(pH =3,4) and strong basic condition(pH=11) the yields of EPS was one time higher than that of neutral condition.However,under strong acidic... |
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| Keywords: | waste activated sludge hydrolysis-acidification EPS yields |
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