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Adsorption of NH3-N onto rice straw-derived biochar
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Man Ho | - |
dc.contributor.author | Jeong, Sangjae | - |
dc.contributor.author | Kim, Jae Young | - |
dc.creator | 김재영 | - |
dc.date.accessioned | 2020-01-23T07:25:40Z | - |
dc.date.available | 2020-04-05T07:25:40Z | - |
dc.date.created | 2020-01-30 | - |
dc.date.created | 2020-01-30 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.citation | Journal of Environmental Chemical Engineering, Vol.7 No.2, p. 103039 | - |
dc.identifier.issn | 2213-2929 | - |
dc.identifier.uri | https://hdl.handle.net/10371/163621 | - |
dc.description.abstract | In this study, potential of rice straw-derived biochar as an NH3-N was evaluated. The aims of this study are to evaluate the NH3-N adsorption kinetics, examine NH3-N adsorption capacity, suggest the optimal pyrolysis temperature for NH3-N removal, and investigate the effect of solution pH on the NH3-N removal by rice straw-derived biochar. In order to achieve these goals, series of experiments on NH3-N adsorption by rice straw-derived biochar specimens obtained at four different temperatures (300, 400, 500, and 600 degrees C) were conducted. The results show that more than half of mass transfer was finished in 2 h, and this ensures feasibility for in-situ operation. According to the adsorption isotherm experiments, NH3-N adsorption capacity by rice straw-derived biochar increased with initial NH3-N concentration and it seems to result from multilayer adsorption behaviors. The optimal pyrolysis temperature for NH3-N removal was around 400 degrees C. It seems that enlargement of surface area compensated the dissipation of functional groups associated with NH3-N removal. The influence of pH on NH3-N removal was distinguished depending on the pyrolysis temperature. Adsorption envelopes of NH3-N by BC300 and BC400 resembled those of common cationic species, however those of BC500 and BC600 showed different patterns. Solution pH should be carefully managed for NH3-N adsorption process by rice straw-derived biochar. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | en |
dc.publisher | Elsevier BV | - |
dc.title | Adsorption of NH3-N onto rice straw-derived biochar | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jece.2019.103039 | - |
dc.citation.journaltitle | Journal of Environmental Chemical Engineering | - |
dc.identifier.wosid | 000463767100001 | - |
dc.identifier.scopusid | 2-s2.0-85063792181 | - |
dc.description.srnd | OAIID:RECH_ACHV_DSTSH_NO:T201907962 | - |
dc.description.srnd | RECH_ACHV_FG:RR00200001 | - |
dc.description.srnd | ADJUST_YN: | - |
dc.description.srnd | EMP_ID:A001052 | - |
dc.description.srnd | CITE_RATE:0 | - |
dc.description.srnd | DEPT_NM:건설환경공학부 | - |
dc.description.srnd | EMAIL:jaeykim@snu.ac.kr | - |
dc.description.srnd | SCOPUS_YN:Y | - |
dc.citation.number | 2 | - |
dc.citation.startpage | 103039 | - |
dc.citation.volume | 7 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Kim, Jae Young | - |
dc.identifier.srnd | T201907962 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | SUSTAINABLE ADSORBENT | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | PARTICLE-SIZE | - |
dc.subject.keywordPlus | LOW-COST | - |
dc.subject.keywordPlus | AMMONIUM | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | PHOSPHATE | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | EUTROPHICATION | - |
dc.subject.keywordPlus | NITROGEN | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Agricultural waste | - |
dc.subject.keywordAuthor | Biochar | - |
dc.subject.keywordAuthor | NH3-N | - |
dc.subject.keywordAuthor | Recycle | - |
dc.subject.keywordAuthor | Rice straw | - |
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