Zeolite and fungi’s flocculability of simulated wastewater containing heavy metal ions or phosphorus

查看全文 作　　者：CAO [1,2]Wenchuan;HAO [5]Jianchao;LIAN [1]Bin;LIU [1,3]Congqiang;WU [4]Fengchang

机构地区：[1]State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002. China;[2]Graduate University of the Chinese Academy of Sciences, Beo'ing 10049, China;[3]Key Laboratory of Water Environment and Water Resources, Tianjin Normal University, Tianjin 300387, China;[4]Chinese Research Academy of Environmental Sciences, Beijing 100012, China;[5]Department of Agronomy, Tianfin Agricultural University, Tianjin 300387, China

出　　处：《Chinese Journal Of Geochemistry》索引2010年第29卷第2期,共6页

基　　金：support from the Knowledge Innovation Program of the Chinese Academy of Sciences (No. kzcx2-yw-135-2);Tianjing Science & Technology Development Program (No. 06YFSZSF05100);the National Natural Science Foundation of China (Grant No. 40632011) 摘　　要：This paper focuses on the flocculability of simulated wastewater containing heavy metal ions (Fe3+, Cd2+) or phosphorus by zeolite, microbial flocculants (MBF) produced by Aspergillus niger and the composite flocculant composed of zeolite and MBF. The main results are presented as follows: zeolite was a good flocculant when the contamination of the three simulated wastewaters was low, but the treated water is of turbidness and the particles in it are hard to precipitate. The MBF have a good flocculability toward Fe3+ wastewater, as well as particulate matter. Significant changes in flocculability occurred after adding the composite flocculant in different simulated wastewa-ters, the best or least effect respective for Fe3+ and Cd2+ wastewater. The research we have done shows that the method by which the composite flocculant is used to treat the wastewater containing heavy metal ions or phosphorus provides important reference value for practical application. 关键词：含重金属离子废水模拟废水水絮凝沸石复合絮凝剂磷真菌微生物絮凝剂

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Zeolite and fungi’s flocculability of simulated wastewater containing heavy metal ions or phosphorus

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