GenX is not always a better fluorinated organic compound than PFOA: A critical review on aqueous phase treatability by adsorption and its associated cost
DC Field | Value | Language |
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dc.contributor.author | Heidari, Hamed | - |
dc.contributor.author | Abbas, Tauqeer | - |
dc.contributor.author | Ok, Yong Sik | - |
dc.contributor.author | Tsang, Daniel C. W. | - |
dc.contributor.author | Bhatnagar, Amit | - |
dc.contributor.author | Khan, Eakalak | - |
dc.date.accessioned | 2022-03-03T19:40:53Z | - |
dc.date.available | 2022-03-03T19:40:53Z | - |
dc.date.created | 2022-03-02 | - |
dc.date.issued | 2021-10-15 | - |
dc.identifier.issn | 0043-1354 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/137657 | - |
dc.description.abstract | Hexafluoropropylene oxide dimer acid (GenX) has been marketed as a substitute for perfluorooctanoic acid (PFOA) to reduce environmental and health risks. GenX and PFOA have been detected in various natural water sources, and adsorption is recognized as a typical treatment process for PFOA removal. In this paper, comparisons of GenX and PFOA adsorption are evaluated, including adsorption potential, adsorption mechanisms, and associated costs. A detailed literature review suggests that anion-exchange resins are more effective in removing GenX than activated carbon. GenX removal efficiency through activated carbon (30%) is lower than that of PFOA (80-95%), while GenX and PFOA removal efficiencies by anion exchange resins are similar (99%). Unconventional adsorbents, such as ionic fluorogels and covalent organic frameworks can effectively remove GenX from water. The review reveals that GenX adsorption is more challenging, requiring almost 4 times the treatment cost of its predecessor, PFOA. Annual operation and maintenance costs for GenX adsorption (initial concentration of GenX and PFOA = 0.2 mu g.L-1) by GAC for treating 10,000 m(3) per day is almost US$1,000,000 per year, but only around US$240,000 per year for PFOA. Desorption of GenX in the presence of PFOA highlights GenX's inferior treatability by adsorption. It is believed that GenX is a more environmentally friendly compound than PFOA, but this environmental friendliness comes with the price. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | ANION-EXCHANGE RESINS | - |
dc.subject | POLYFLUOROALKYL SUBSTANCES PFASS | - |
dc.subject | DRINKING-WATER CONTAMINANTS | - |
dc.subject | CAPE FEAR RIVER | - |
dc.subject | PERFLUOROOCTANE SULFONATE | - |
dc.subject | PERFLUOROALKYL SUBSTANCES | - |
dc.subject | ION-EXCHANGE | - |
dc.subject | ACTIVATED CARBONS | - |
dc.subject | PERFLUORINATED COMPOUNDS | - |
dc.subject | REMOVAL EFFICIENCY | - |
dc.title | GenX is not always a better fluorinated organic compound than PFOA: A critical review on aqueous phase treatability by adsorption and its associated cost | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ok, Yong Sik | - |
dc.identifier.doi | 10.1016/j.watres.2021.117683 | - |
dc.identifier.scopusid | 2-s2.0-85116026588 | - |
dc.identifier.wosid | 000705181600008 | - |
dc.identifier.bibliographicCitation | WATER RESEARCH, v.205 | - |
dc.relation.isPartOf | WATER RESEARCH | - |
dc.citation.title | WATER RESEARCH | - |
dc.citation.volume | 205 | - |
dc.type.rims | ART | - |
dc.type.docType | Review | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.subject.keywordPlus | ACTIVATED CARBONS | - |
dc.subject.keywordPlus | ANION-EXCHANGE RESINS | - |
dc.subject.keywordPlus | CAPE FEAR RIVER | - |
dc.subject.keywordPlus | DRINKING-WATER CONTAMINANTS | - |
dc.subject.keywordPlus | ION-EXCHANGE | - |
dc.subject.keywordPlus | PERFLUORINATED COMPOUNDS | - |
dc.subject.keywordPlus | PERFLUOROALKYL SUBSTANCES | - |
dc.subject.keywordPlus | PERFLUOROOCTANE SULFONATE | - |
dc.subject.keywordPlus | POLYFLUOROALKYL SUBSTANCES PFASS | - |
dc.subject.keywordPlus | REMOVAL EFFICIENCY | - |
dc.subject.keywordAuthor | Activated carbon | - |
dc.subject.keywordAuthor | Drinking water | - |
dc.subject.keywordAuthor | Emerging contaminants | - |
dc.subject.keywordAuthor | Remediation technologies | - |
dc.subject.keywordAuthor | Water treatment | - |
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