File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

배효관

Bae, Hyokwan
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Full metadata record

DC Field Value Language
dc.citation.endPage 48 -
dc.citation.number 1 -
dc.citation.startPage 41 -
dc.citation.title MEMBRANE AND WATER TREATMENT -
dc.citation.volume 11 -
dc.contributor.author Jang, Hana -
dc.contributor.author Park, Nohback -
dc.contributor.author Bae, Hyokwan -
dc.date.accessioned 2023-12-21T18:08:23Z -
dc.date.available 2023-12-21T18:08:23Z -
dc.date.created 2023-02-14 -
dc.date.issued 2020-01 -
dc.description.abstract Lead is a highly toxic heavy metal that causes serious health problems. Nonetheless, it is increasingly being used for industrial applications and is often discharged into the environment without adequate purification. In this study, Pb(II) was removed by powdered waste sludge (PWS) based on the biosorption mechanism. Different PWSs were collected from a submerged moving media intermittent aeration reactor (SMMIAR) and modified Ludzack-Ettinger (MLE) processes. The contents of extracellular polymeric substances were similar, but the surface area of MLE-PWS (2.07 m(2)/g) was higher than that of SMMIAR-PWS (0.82 m(2)/g); this is expected to be the main parameter determining Pb(II) biosorption capacity. The Bacillaceae family was dominant in both PWSs and may serve as the major responsible bacterial group for Pb(II) biosorption. Pb(II) biosorption using PWS was evaluated for reaction time, salinity effect, and isotherm equilibrium. For all experiments, MLE-PWS showed higher removal efficiency. At a fixed initial Pb(II) concentration of 20 mg/L and a reaction time of 180 minutes, the biosorption capacities (q(e)) for SMMIAR- and MLE-PWSs were 2.86 and 3.07 mg/g, respectively. Pb(II) biosorption using PWS was rapid; over 80% of the maximum biosorption capacity was achieved within 10 minutes. Interestingly, MLE-PWS showed enhanced Pb(II) biosorption with salinity values of up to 30 g NaCl/L. Linear regression of the Freundlich isotherm revealed high regression coefficients (R-2 > 0.968). The fundamental Pb(II) biosorption capacity, represented by the K-F value, was consistently higher for MLE-PWS than SMMIAR-PWS. -
dc.identifier.bibliographicCitation MEMBRANE AND WATER TREATMENT, v.11, no.1, pp.41 - 48 -
dc.identifier.doi 10.12989/mwt.2020.11.1.041 -
dc.identifier.issn 2005-8624 -
dc.identifier.scopusid 2-s2.0-85095590370 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/62378 -
dc.identifier.url http://www.techno-press.org/content/?page=article&journal=mwt&volume=11&num=1&ordernum=5 -
dc.identifier.wosid 000512893400005 -
dc.language 영어 -
dc.publisher TECHNO-PRESS -
dc.title Removal of Pb(II) from wastewater by biosorption using powdered waste sludge -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Engineering, Chemical; Water Resources -
dc.relation.journalResearchArea Engineering; Water Resources -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor lead -
dc.subject.keywordAuthor biosorption -
dc.subject.keywordAuthor activated sludge -
dc.subject.keywordAuthor Freundlich isotherm -
dc.subject.keywordAuthor bacterial community structure -
dc.subject.keywordPlus ACTIVATED-SLUDGE -
dc.subject.keywordPlus AQUEOUS-SOLUTION -
dc.subject.keywordPlus HEAVY-METALS -
dc.subject.keywordPlus LEAD -
dc.subject.keywordPlus CADMIUM -
dc.subject.keywordPlus IONS -
dc.subject.keywordPlus DYES -
dc.subject.keywordPlus PB -
dc.subject.keywordPlus ADSORPTION -
dc.subject.keywordPlus ADSORBENT -

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.