Green remediation of benzene contaminated groundwater using persulfate activated by biochar composite loaded with iron sulfide minerals
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhu, Jin | - |
dc.contributor.author | Song, Yinan | - |
dc.contributor.author | Wang, Liuwei | - |
dc.contributor.author | Zhang, Zhuorong | - |
dc.contributor.author | Gao, Jing | - |
dc.contributor.author | Tsang, Daniel C. W. | - |
dc.contributor.author | Ok, Yong Sik | - |
dc.contributor.author | Hou, Deyi | - |
dc.date.accessioned | 2022-03-02T14:41:40Z | - |
dc.date.available | 2022-03-02T14:41:40Z | - |
dc.date.created | 2022-03-02 | - |
dc.date.issued | 2022-02-01 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/137510 | - |
dc.description.abstract | In this study, biochar supported iron sulfide (FexSy) composite (FexSy@biochar) was synthesized and utilized as a persulfate (PS) activator for benzene removal from contaminated groundwater. The FexSy@biochar/PS system exhibited excellent performance in benzene adsorption and subsequent degradation. The optimal conditions for benzene removal in this study were found to be 1 g L-1 FexSy@biochar dosage and 3 mM PS concentration (removal rate 99.8%), with no reversible desorption of benzene concentrations in a long-time interval. The high catalytic performance of FexSy@biochar was mainly attributed to the free radicals (i.e., SO4.-,.OH) generated from PS activation induced by FexSy particles on biochar, followed by the possible activation by oxygencontaining groups. The as-prepared FexSy@biochar also showed long-term effectiveness for PS activation as confirmed by the 4 test cycled tests. The EPR not only demonstrated the presence of .OH and SO4.- free radicals but also indicated the sustainable release effect of reactive species from FexSy@biochar/PS system, as strong signals were observed in the FexSy@biochar/PS system even after 24 h. The FexSy@biochar could be an alternative to existing activators of in-situ chemical oxidation for contaminated groundwater remediation. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | BISPHENOL-A | - |
dc.subject | ORGANIC CONTAMINANTS | - |
dc.subject | MAGNETITE PARTICLES | - |
dc.subject | AQUEOUS-SOLUTIONS | - |
dc.subject | WASTE-WATER | - |
dc.subject | DEGRADATION | - |
dc.subject | REMOVAL | - |
dc.subject | ADSORPTION | - |
dc.subject | PYRITE | - |
dc.subject | MECHANISMS | - |
dc.title | Green remediation of benzene contaminated groundwater using persulfate activated by biochar composite loaded with iron sulfide minerals | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ok, Yong Sik | - |
dc.identifier.doi | 10.1016/j.cej.2021.132292 | - |
dc.identifier.scopusid | 2-s2.0-85114937214 | - |
dc.identifier.wosid | 000729144300004 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.429 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 429 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | BISPHENOL-A | - |
dc.subject.keywordPlus | ORGANIC CONTAMINANTS | - |
dc.subject.keywordPlus | MAGNETITE PARTICLES | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | PYRITE | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordAuthor | FexSy nanoparticles | - |
dc.subject.keywordAuthor | Engineered biochar | - |
dc.subject.keywordAuthor | Sulfate radicals | - |
dc.subject.keywordAuthor | Groundwater contamination | - |
dc.subject.keywordAuthor | Benzene degradation | - |
dc.subject.keywordAuthor | Sustainable remediation | - |
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