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Article: Thermal detoxification of hazardous metal sludge by applied electromagnetic energy

TitleThermal detoxification of hazardous metal sludge by applied electromagnetic energy
Authors
Issue Date2008
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2008, v. 71 n. 9, p. 1693-1700 How to Cite?
AbstractIndustrial wastewater sludge was treated by microwave processes to enhance the stabilization of laden copper. The effects of additives, processing time, microwave adsorbents, moisture content, reaction atmosphere, and cooling gas were investigated. The stabilization results were significantly enhanced by metal powder additives, prolonged microwave processing time, proper moisture content, the addition of carbonaceous materials, and a reaction environment with inert gas. It was also found that the moisture content would increase the homogeneity of applied microwave energy, and thus achieve a better overall efficiency between stabilizing agents and copper. The added metal powders may reduce Cu(II) to Cu(0) in the sludge or TCLP. The resulting thermal energy of microwave radiation, and microarcing process and the oxidation heat of Al powder may also assist the transformation of Cu(II) into CuO and CuAl 2O 4 phases. Part of the sludge was vitrified within inert gas environment when the processing time was longer than 18 min and active carbon dosage was more than 3 g. Reduction reactions also occurred in the hybrid microwave processes, leading to the reduction of sulfates and metal ions, and the formation of Cu 2S and FeS. Moreover, the microwave radiation can also enhance the feasibility of co-treating of inorganic and organic solid waste. © 2008 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/70692
ISSN
2015 Impact Factor: 3.698
2015 SCImago Journal Rankings: 1.536
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHsieh, CHen_HK
dc.contributor.authorLo, SLen_HK
dc.contributor.authorHu, CYen_HK
dc.contributor.authorShih, Ken_HK
dc.contributor.authorKuan, WHen_HK
dc.contributor.authorChen, CLen_HK
dc.date.accessioned2010-09-06T06:25:15Z-
dc.date.available2010-09-06T06:25:15Z-
dc.date.issued2008en_HK
dc.identifier.citationChemosphere, 2008, v. 71 n. 9, p. 1693-1700en_HK
dc.identifier.issn0045-6535en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70692-
dc.description.abstractIndustrial wastewater sludge was treated by microwave processes to enhance the stabilization of laden copper. The effects of additives, processing time, microwave adsorbents, moisture content, reaction atmosphere, and cooling gas were investigated. The stabilization results were significantly enhanced by metal powder additives, prolonged microwave processing time, proper moisture content, the addition of carbonaceous materials, and a reaction environment with inert gas. It was also found that the moisture content would increase the homogeneity of applied microwave energy, and thus achieve a better overall efficiency between stabilizing agents and copper. The added metal powders may reduce Cu(II) to Cu(0) in the sludge or TCLP. The resulting thermal energy of microwave radiation, and microarcing process and the oxidation heat of Al powder may also assist the transformation of Cu(II) into CuO and CuAl 2O 4 phases. Part of the sludge was vitrified within inert gas environment when the processing time was longer than 18 min and active carbon dosage was more than 3 g. Reduction reactions also occurred in the hybrid microwave processes, leading to the reduction of sulfates and metal ions, and the formation of Cu 2S and FeS. Moreover, the microwave radiation can also enhance the feasibility of co-treating of inorganic and organic solid waste. © 2008 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphereen_HK
dc.relation.ispartofChemosphereen_HK
dc.subject.meshAdsorptionen_HK
dc.subject.meshElectromagnetic Phenomenaen_HK
dc.subject.meshHazardous Substances - toxicityen_HK
dc.subject.meshIndustrial Wasteen_HK
dc.subject.meshMetals - chemistry - toxicityen_HK
dc.subject.meshSewageen_HK
dc.titleThermal detoxification of hazardous metal sludge by applied electromagnetic energyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0045-6535&volume=71&spage=1693&epage=1700&date=2008&atitle=Thermal+Detoxification+of+Hazardous+Metal+Sludge+by+Applied+Electromagnetic+Energyen_HK
dc.identifier.emailShih, K:kshih@hkucc.hku.hken_HK
dc.identifier.authorityShih, K=rp00167en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.chemosphere.2008.01.006en_HK
dc.identifier.pmid18280536-
dc.identifier.scopuseid_2-s2.0-41649106216en_HK
dc.identifier.hkuros148375en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-41649106216&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume71en_HK
dc.identifier.issue9en_HK
dc.identifier.spage1693en_HK
dc.identifier.epage1700en_HK
dc.identifier.isiWOS:000255714900010-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridHsieh, CH=35068068800en_HK
dc.identifier.scopusauthoridLo, SL=35237835000en_HK
dc.identifier.scopusauthoridHu, CY=23492617300en_HK
dc.identifier.scopusauthoridShih, K=14072108900en_HK
dc.identifier.scopusauthoridKuan, WH=6701314795en_HK
dc.identifier.scopusauthoridChen, CL=8634083000en_HK

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