There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 158835 | - |
dc.citation.title | SCIENCE OF THE TOTAL ENVIRONMENT | - |
dc.citation.volume | 855 | - |
dc.contributor.author | Song, Minsu | - |
dc.contributor.author | Park, Jihye | - |
dc.contributor.author | Jeon, Junbeom | - |
dc.contributor.author | Ha, Yun-Geun | - |
dc.contributor.author | Cho, Young-Rae | - |
dc.contributor.author | Koo, Hyung-Jun | - |
dc.contributor.author | Kim, Woong | - |
dc.contributor.author | Bae, Hyokwan | - |
dc.date.accessioned | 2023-12-21T13:10:55Z | - |
dc.date.available | 2023-12-21T13:10:55Z | - |
dc.date.created | 2022-10-27 | - |
dc.date.issued | 2023-01 | - |
dc.description.abstract | The hardness of poly (vinyl alcohol)-cryogels (PVA-CGs) was improved under three parameter conditions: 7.5 %- 12.5 % PVA, 1-5 freezing-thawing cycles (FTCs), and the addition of 0 %-10 % glycerol as a cryoprotectant. This study investigated the effects of shear stress-induced destruction (SSID) on mechanical strength by inducing rapid ero-sion with a high frictional force. Tolerance to SSID (Tol-SSID) exhibited different sensitivities and trends depending on the above three fabrication parameters. The measured Tol-SSID exhibited consistent and inconsistent trends with ten -sile strength and swelling, respectively. Tol-SSID evaluation provides new insights into the practically meaningful me-chanical strength of PVA-CGs against strong friction, which simulates extreme shear stress in a bioreactor. A PVA-CG with a PVA concentration of 10 % and in two FTCs resulted in Tol-SSID and tensile strength of 88.3 % and 0.59 kPa, respectively. Here, 5 % glycerol was added to maintain the bacterial respiration activity of immobilized nitrifiers of 0.097 mg-O2/g-VSS center dot min and survival of 88.6 %. The continuous mode of nitrification using the optimized PVA-CG for 10 days resulted in an ammonia removal rate of 0.2173 kg-N/m3 center dot d, which is an improvement over cases without glycerol addition: 0.1426 and 0.1472 kg-N/m3 center dot d for PVA-CGs in two and three FTCs, respectively. | - |
dc.identifier.bibliographicCitation | SCIENCE OF THE TOTAL ENVIRONMENT, v.855, pp.158835 | - |
dc.identifier.doi | 10.1016/j.scitotenv.2022.158835 | - |
dc.identifier.issn | 0048-9697 | - |
dc.identifier.scopusid | 2-s2.0-85138465036 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/62026 | - |
dc.identifier.wosid | 000863977900010 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Application of poly (vinyl alcohol)-cryogels to immobilizing nitrifiers: Enhanced tolerance to shear stress-induced destruction and viability control | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Ammonia removal rate | - |
dc.subject.keywordAuthor | Poly (vinyl alcohol) cryogel | - |
dc.subject.keywordAuthor | Tolerance to shear stress-induced destruction | - |
dc.subject.keywordAuthor | Viability | - |
dc.subject.keywordAuthor | Cryoprotectant | - |
dc.subject.keywordPlus | POLYVINYL-ALCOHOL PVA | - |
dc.subject.keywordPlus | AMMONIUM WASTE-WATER | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | CROSS-LINKING | - |
dc.subject.keywordPlus | NITROGEN REMOVAL | - |
dc.subject.keywordPlus | ANAMMOX PROCESS | - |
dc.subject.keywordPlus | HIGH-STRENGTH | - |
dc.subject.keywordPlus | GEL BEADS | - |
dc.subject.keywordPlus | HYDROGELS | - |
dc.subject.keywordPlus | NITRIFICATION | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.