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Article: An integrated separation technology for high fluoride-containing wastewater treatment: Fluoride removal, membrane fouling behavior and control

TitleAn integrated separation technology for high fluoride-containing wastewater treatment: Fluoride removal, membrane fouling behavior and control
Authors
KeywordsHigh fluoride-containing wastewater
Membrane fouling
Precipitation/crystallization/UF/RO system
Recovery rate
Issue Date2022
Citation
Journal of Cleaner Production, 2022, v. 349, article no. 131225 How to Cite?
AbstractThe high concentration of fluoride in aqueous, which exacerbated by the discharged wastewater from semiconductor, electroplating, metallurgical and ceramics industries, has gone far beyond the World Health Organization (WHO) standard and seriously affected the health of human life. This study aims to validate the deep removal of fluoride from high fluoride-containing wastewater by using an integrated precipitation/crystallization/ultrafiltration (UF)/reverse osmosis (RO) system. The system enables an extremely low residual fluoride concentration (down to 0.25 mg L−1) qualified WHO standard, which was much lower than those of other reported membrane-based processes. In particular, the application of crystallization rather than conventional coagulation/flocculation was demonstrated to be effective in reducing fluoride, turbidity and sludge water content. Membrane fouling analysis indicated that UF membrane scaling was attributed to the CaF2 particles deposition at recovery rates of 70%–90%. RO membrane fouling behaviors were identified at recovery rate of 50% (organic fouling), 70% (inorganic scaling occurred and organic fouling) and 80% (inorganic scaling and organic fouling). Meanwhile, UF/RO membrane scaling/fouling could be removed by pure water cleaning (UF) and Na2CO3/NaOH/HCl cleaning (RO). Results of this work shall provide useful information on the application of a precipitation/crystallization/UF/RO system to purify and recover high fluoride-containing wastewater.
Persistent Identifierhttp://hdl.handle.net/10722/327925
ISSN
2023 Impact Factor: 9.7
2023 SCImago Journal Rankings: 2.058
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorQiu, Yangbo-
dc.contributor.authorRen, Long Fei-
dc.contributor.authorShao, Jiahui-
dc.contributor.authorXia, Lei-
dc.contributor.authorZhao, Yan-
dc.date.accessioned2023-06-05T06:52:42Z-
dc.date.available2023-06-05T06:52:42Z-
dc.date.issued2022-
dc.identifier.citationJournal of Cleaner Production, 2022, v. 349, article no. 131225-
dc.identifier.issn0959-6526-
dc.identifier.urihttp://hdl.handle.net/10722/327925-
dc.description.abstractThe high concentration of fluoride in aqueous, which exacerbated by the discharged wastewater from semiconductor, electroplating, metallurgical and ceramics industries, has gone far beyond the World Health Organization (WHO) standard and seriously affected the health of human life. This study aims to validate the deep removal of fluoride from high fluoride-containing wastewater by using an integrated precipitation/crystallization/ultrafiltration (UF)/reverse osmosis (RO) system. The system enables an extremely low residual fluoride concentration (down to 0.25 mg L−1) qualified WHO standard, which was much lower than those of other reported membrane-based processes. In particular, the application of crystallization rather than conventional coagulation/flocculation was demonstrated to be effective in reducing fluoride, turbidity and sludge water content. Membrane fouling analysis indicated that UF membrane scaling was attributed to the CaF2 particles deposition at recovery rates of 70%–90%. RO membrane fouling behaviors were identified at recovery rate of 50% (organic fouling), 70% (inorganic scaling occurred and organic fouling) and 80% (inorganic scaling and organic fouling). Meanwhile, UF/RO membrane scaling/fouling could be removed by pure water cleaning (UF) and Na2CO3/NaOH/HCl cleaning (RO). Results of this work shall provide useful information on the application of a precipitation/crystallization/UF/RO system to purify and recover high fluoride-containing wastewater.-
dc.languageeng-
dc.relation.ispartofJournal of Cleaner Production-
dc.subjectHigh fluoride-containing wastewater-
dc.subjectMembrane fouling-
dc.subjectPrecipitation/crystallization/UF/RO system-
dc.subjectRecovery rate-
dc.titleAn integrated separation technology for high fluoride-containing wastewater treatment: Fluoride removal, membrane fouling behavior and control-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jclepro.2022.131225-
dc.identifier.scopuseid_2-s2.0-85126670013-
dc.identifier.volume349-
dc.identifier.spagearticle no. 131225-
dc.identifier.epagearticle no. 131225-
dc.identifier.isiWOS:000789586600003-

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