| 未脱水污泥中铅的电动力去除 |
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| 引用本文： | 周鸣,刘亚纳,董铁有,廖家林,樊亚楠.未脱水污泥中铅的电动力去除[J].环境科学与技术,2011,34(10):147-150. |
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| 作者姓名： | 周鸣 刘亚纳 董铁有 廖家林 樊亚楠 |
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| 作者单位： | 1. 河南科技大学化工与制药学院,河南洛阳,471003
2. 河南科技大学环境工程研究所,河南洛阳,471003 |
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| 基金项目： | 河南省教育厅自然科学研究计划项目(2009A150008);河南省科技攻关计划项目(200703081);河南科技大学科学研究基金项目(2007ZY073),河南科技大学博士科研启动基金(09001351) |
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| 摘 要： | 以城市污水处理厂二次沉淀池未脱水污泥为研究对象,在自制的三槽型电解槽中采用电动力学法去除污泥中的铅.对实验过程中的污泥pH、电导率变化进行分析讨论.研究污泥消化、电动力处理时间、搅拌、阴极室电解液pH,对电动力学法除铅的影响.实验发现:污泥消化不利于电动力法对污泥中铅的去除；延长电动力处理时间可不同程度地提高污泥中铅的...
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| 关 键 词： | 电动力学法 未脱水污泥 铅 三槽型电解槽 |
Electrokinetic Removal of Pb from Undewatered Sludge |
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| ZHOU Ming,LIU Ya-na,DONG Tie-you,LIAO Jia-lin,FAN Ya-nan.Electrokinetic Removal of Pb from Undewatered Sludge[J].Environmental Science and Technology,2011,34(10):147-150. |
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| Authors: | ZHOU Ming LIU Ya-na DONG Tie-you LIAO Jia-lin FAN Ya-nan |
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| Institution: | 1(1.School of Chemical Engineering and Pharmaceutics;2.Research Institute of Environmental Engineering,Henan University of Science and Technology,Luoyang 471003,China) |
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| Abstract: | Undewatered sludge from secondary sedimentation tank in municipal sewage treatment plant was selected as the research object,a self-made three-groove electrolyzer was used to remove Pb from sewage sludge by electrokinetic method.Changes of pH and conductivity of sludge during the treatment period were discussed.The study focused on the effects of sludge digestion,electrolysis time,stirring,pH of electrolyte in cathode chamber on electrokinetic removal of Pb.Results showed that sludge digestion was of no advantage for the removal of Pb from the sludge.Extending electrolysis time could improve the removal efficiency of Pb in varying degrees.Stirring was not conductive to the migration and removal of Pb.Removal efficiency of Pb drastically increased by controlling pH of electrolyte in cathode chamber.Under 3 V/cm voltage drop,the removal efficiency of Pb in undewatered sludge was 80.32% by unstirring and controlling pH of electrolyte in cathode chamber after 95 h of treatment. |
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| Keywords: | electrokinetics undewatered sludge Pb three-cell electrodialysis stack |
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