The potential of biochar as sorptive media for removal of hazardous benzene in air
DC Field | Value | Language |
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dc.contributor.author | Khan, Azmatullah | - |
dc.contributor.author | Szulejko, Jan E. | - |
dc.contributor.author | Samaddar, Pallabi | - |
dc.contributor.author | Kim, Ki-Hyun | - |
dc.contributor.author | Liu, Botao | - |
dc.contributor.author | Maitlo, Hubdar Ali | - |
dc.contributor.author | Yang, Xiao | - |
dc.contributor.author | Ok, Yong Sik | - |
dc.date.accessioned | 2021-09-01T16:21:57Z | - |
dc.date.available | 2021-09-01T16:21:57Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-04-01 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/66079 | - |
dc.description.abstract | Airborne benzene is hazardous even at sub-ppm levels. Therefore, an effective strategy is required for its removal, such as the use of a sorbent with large adsorption capacity or high breakthrough volume. To meet the goal, the performance for the removal of benzene was assessed by loading benzene at 5 Pa inlet partial pressure against seven types of biowaste-derived biochar: (1) paper mill sludge, (2) conventional biochar with magnetic properties, (3) biochar composites with carbon nanotubes (CNTs), (4) gasification biochar from mixed feedstock, (5) gasification biochar from a single feedstock, (6) modified gasification biochar, and (7) activated carbon (AC) as a reference. The 298 K maximum adsorption capacities (mg g(-1)), when measured at a benzene inlet pressure of 5 Pa (or 50 ppm in ultrapure nitrogen) and flow rate of 50 mL atm min(-1), varied widely for different biochars, from 0.35 (MS: Swine manure + plastic mulch film waste) to 144 mg g(-1) (XC-1: biochar from mixed feedstock); their 10% breakthrough volumes (BTV) were in the range of 0.22-492 L g(-1), respectively. The experimental data (capacity vs. benzene outlet partial pressure) could be fitted to either two or three linearized Langmuir isotherms with distinctive sorption mechanisms ((1) a retrograde region (Type III isotherm: 0 to similar to 0.2 Pa), (2) an intermediate pressure region (0.2 and 2.0 Pa), and (3) a higher pressure region (> 2 Pa)) which was also confirmed similarly by Freundlich, Dubinin-Radushkevich, and Elovich fitting. About 65% of the maximum capacity was achieved in the retrograde region. The strongest biochar sorbent, XC-1, showed similar performance as activated carbon to prove its feasibility toward air quality management (AQM) applications. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | VOLATILE ORGANIC-COMPOUNDS | - |
dc.subject | ADSORPTION | - |
dc.subject | WASTE | - |
dc.subject | SOIL | - |
dc.subject | PYROLYSIS | - |
dc.subject | WATER | - |
dc.subject | CO2 | - |
dc.subject | BIODEGRADATION | - |
dc.subject | GASIFICATION | - |
dc.subject | MANAGEMENT | - |
dc.title | The potential of biochar as sorptive media for removal of hazardous benzene in air | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ok, Yong Sik | - |
dc.identifier.doi | 10.1016/j.cej.2018.10.193 | - |
dc.identifier.scopusid | 2-s2.0-85055752080 | - |
dc.identifier.wosid | 000457096400152 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.361, pp.1576 - 1585 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 361 | - |
dc.citation.startPage | 1576 | - |
dc.citation.endPage | 1585 | - |
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 | VOLATILE ORGANIC-COMPOUNDS | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | WASTE | - |
dc.subject.keywordPlus | SOIL | - |
dc.subject.keywordPlus | PYROLYSIS | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | CO2 | - |
dc.subject.keywordPlus | BIODEGRADATION | - |
dc.subject.keywordPlus | GASIFICATION | - |
dc.subject.keywordPlus | MANAGEMENT | - |
dc.subject.keywordAuthor | Benzene | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Activated carbon | - |
dc.subject.keywordAuthor | Biochar | - |
dc.subject.keywordAuthor | Retrograde isotherm | - |
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