Removal of phosphate from water by paper mill sludge biochar
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Ming | - |
dc.contributor.author | Lin, Kun | - |
dc.contributor.author | Li, Xiaodian | - |
dc.contributor.author | Wu, Lijun | - |
dc.contributor.author | Yu, Jie | - |
dc.contributor.author | Cao, Shuang | - |
dc.contributor.author | Zhang, Dong | - |
dc.contributor.author | Xu, Liheng | - |
dc.contributor.author | Parikh, Sanjai J. | - |
dc.contributor.author | Ok, Yong Sik | - |
dc.date.accessioned | 2022-03-02T18:41:44Z | - |
dc.date.available | 2022-03-02T18:41:44Z | - |
dc.date.created | 2022-03-02 | - |
dc.date.issued | 2022-01-15 | - |
dc.identifier.issn | 0269-7491 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/137530 | - |
dc.description.abstract | Biochar modification by metals and metal oxides is considered a practical approach for enhancing the adsorption capacity of anionic compounds such as phosphate (P). This study obtained paper mill sludge (PMS) biochar (PMSB) via a one-step process by pyrolyzing PMS waste containing ferric salt to remove anionic P from water. The ferric salt in the sludge was transformed into ferric oxide and zero-valent-iron (Fe0) in N2 atmosphere at pyrolysis temperatures ranging from 300 to 800 degrees C. The maximum adsorption (Qm) of the PMSBs for P ranged from 9.75 to 25.19 mg P/g. Adsorption is a spontaneous and endothermic process, which implies chemisorption. PMSB obtained at 800 degrees C (PMSB800) exhibited the best performance for P removal. Fe0 in PMSB800 plays a vital role in P removal via adsorption and coprecipitation, such as forming the equivalent to Fe-O-P ternary complex. Furthermore, the possible chemical precipitation of P by CaO decomposed from calcite (CaCO3; an additive of paper production that remains in PMS) may also contribute to the removal of P by PMSB800. Moreover, PMSBs can be easily separated magnetically from water after application and adsorption. This study achieved a waste-to-wealth strategy by turning waste PMS into a metal/metal oxide-embedded biochar with excellent P removal capability and simple magnetic separation properties via a one-step pyrolysis process. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | BIOLOGICAL PHOSPHORUS REMOVAL | - |
dc.subject | AQUEOUS-SOLUTION | - |
dc.subject | ENGINEERED BIOCHAR | - |
dc.subject | ADSORPTION | - |
dc.subject | SORPTION | - |
dc.subject | NITRATE | - |
dc.subject | AMMONIUM | - |
dc.subject | PYROLYSIS | - |
dc.subject | RECOVERY | - |
dc.subject | CARBON | - |
dc.title | Removal of phosphate from water by paper mill sludge biochar | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ok, Yong Sik | - |
dc.identifier.doi | 10.1016/j.envpol.2021.118521 | - |
dc.identifier.scopusid | 2-s2.0-85119358256 | - |
dc.identifier.wosid | 000744241700008 | - |
dc.identifier.bibliographicCitation | ENVIRONMENTAL POLLUTION, v.293 | - |
dc.relation.isPartOf | ENVIRONMENTAL POLLUTION | - |
dc.citation.title | ENVIRONMENTAL POLLUTION | - |
dc.citation.volume | 293 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | BIOLOGICAL PHOSPHORUS REMOVAL | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | ENGINEERED BIOCHAR | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | SORPTION | - |
dc.subject.keywordPlus | NITRATE | - |
dc.subject.keywordPlus | AMMONIUM | - |
dc.subject.keywordPlus | PYROLYSIS | - |
dc.subject.keywordPlus | RECOVERY | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordAuthor | Phosphate | - |
dc.subject.keywordAuthor | Biochar | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Paper mill sludge | - |
dc.subject.keywordAuthor | Zero-valent iron (ZVI) | - |
dc.subject.keywordAuthor | One-step process | - |
dc.subject.keywordAuthor | Waste-to-wealth strategy | - |
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