Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70011
DC FieldValueLanguage
dc.contributor.authorTu, Y.J.en_US
dc.contributor.authorChang, C.K.en_US
dc.contributor.authorYou, C.F.en_US
dc.contributor.authorWang, S.L.en_US
dc.date2012zh_TW
dc.date.accessioned2014-06-11T05:59:14Z-
dc.date.available2014-06-11T05:59:14Z-
dc.identifier.issn0304-3894zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/70011-
dc.description.abstractComplete removal of heavy metal from complex heavy-metal wastewater (CHMW) requires advanced technology. This study investigated the feasibility of a multi-staged ferrite process (MSFP) for treating CHMW, containing Cd, Cu, Pb, Cr, Zn, Ag, Hg, Ni, Sn and Mn. Our experimental results showed that most of the supernatants after conventional single-step ferrite process could conform to the effluent standard of Environmental Protection Administration in Taiwan. However, the sludge could not satisfy the toxicity characteristic leaching procedure (TCLP) limits due to high Cd. Cu, and Pb concentrations. The performance of MSFP in removing heavy metals from wastewater was subsequently investigated and the parameters of three treating steps in MSFP were optimized under 70 degrees C and 90 degrees C at pH 9, and 80 degrees C at pH 10. After the three-staged procedures, all heavy metals in supernatant and sludge could fulfill the contamination levels regulated by law. In addition, the sludge generated from the MSFP was examined by XRD and forms a stable spinel structure, which could be effectively separated by external magnetic field. (C) 2012 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationJournal of Hazardous Materialsen_US
dc.relation.ispartofseriesJournal of Hazardous Materials, Volume 209, Page(s) 379-384.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.jhazmat.2012.01.050en_US
dc.subjectComplex heavy metal wastewateren_US
dc.subjectMulti-staged ferrite processen_US
dc.subjectMagneticen_US
dc.subjectseparationen_US
dc.subjectlow-cost adsorbentsen_US
dc.subjectacid-mine drainageen_US
dc.subjectchemical precipitationen_US
dc.subjectmembrane filtrationen_US
dc.subjectfe(oh)2 suspensionsen_US
dc.subjectaqueous-solutionen_US
dc.subjectairen_US
dc.subjectoxidationen_US
dc.subjectremovalen_US
dc.subjectcoagulationen_US
dc.subjectionsen_US
dc.titleTreatment of complex heavy metal wastewater using a multi-staged ferrite processen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/j.jhazmat.2012.01.050zh_TW
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