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《Environmental Science & Technology》 2010-12
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Mechanism of Domestic Sewage Treatment by Eco-concrete

LAN Jun-kang,LIU Bao-jian(Department of Resource and Environmental Engineering,Guilin University of Technology,Guilin 541004,China)  
Two different kinds of cement were used to make concrete sample,with one made from Portland cement and coarse sand,and the other made from composite cement and coarse sand. The concrete samples were used to treat sewage water gathered from inflow path of a wastewater treatment plant which is mainly consisted of domestic sewage. Experimental results showed that the effect of adsorption and ion exchange were weak in sewage water purification by eco-concrete. Purification effect of domestic sewage by eco-concrete was mainly depended on biodegradation of organic matter by microorganism on the surface of eco-concrete. The effect of wastewater treatment in experimental devices with concrete samples was obvious better than that in the experimental devices without concrete,which indicated that the effect of wastewater treatment by eco-concrete was better than only aeration to wastewater. Results also showed that the effect of sewage water treatment by concrete samples made from composite cement and coarse sand was better than that by concrete samples made from Portland cement and coarse sand under sufficient aeration.
【Fund】: 广西重点实验室研究基金项目(桂科能0701K009);; 广西高校人才小高地建设“环境工程”创新团队资助计划项目(桂教人[2007]71号)
【CateGory Index】: X52
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 Xu Guodong1,3 Gao Jianming1 Lü Xiwu2(1School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)(2 School of Energy and Environment,Southeast University,Nanjing 210096,China)(3Jiangsu Testing Center for Quality of Construction Engineering,Nanjing 210008,China);Water-purification properties of porous concrete[J];Journal of Southeast University(Natural Science Edition);2007-03
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Xu Guodong1,3 Gao Jianming1 Lü Xiwu2(1School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)(2 School of Energy and Environment,Southeast University,Nanjing 210096,China)(3Jiangsu Testing Center for Quality of Construction Engineering,Nanjing 210008,China);Water-purification properties of porous concrete[J];Journal of Southeast University(Natural Science Edition);2007-03
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