Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.number | 4 | - |
dc.citation.startPage | 865 | - |
dc.citation.title | ENERGIES | - |
dc.citation.volume | 11 | - |
dc.contributor.author | Kim, Danbee | - |
dc.contributor.author | Kim, Jaai | - |
dc.contributor.author | Lee, Changsoo | - |
dc.date.accessioned | 2023-12-21T20:51:57Z | - |
dc.date.available | 2023-12-21T20:51:57Z | - |
dc.date.created | 2018-04-27 | - |
dc.date.issued | 2018-04 | - |
dc.description.abstract | Mild-temperature thermo-alkaline pretreatment of spent coffee grounds (SCG) was studied to improve its solubilization and methanation. The simultaneous effects of NaOH concentration (0-0.2 M) and temperature (60-90 °C) were investigated. Significant solubilization of SCG was achieved by the pretreatment, particularly under high-NaOH-concentration and high-temperature conditions. However, adding NaOH above a certain concentration adversely affected the methane production. Therefore, the degree of solubilization (SD) correlated poorly with methane yield (Ym). Response surface models of SD and Ym were successfully generated. The maximum response of SD (36.4%) was obtained at 0.18 M NaOH and 90.0 °C, while that of Ym (263.31 mL CH4/g COD added) was obtained at 0.13 M NaOH and 70.5 °C. Hydrogenotrophic Methanospirillum species were the dominant methanogens in all the SCG digestion tests. It is likely that NaOH concentration had a more significant influence on the development of microbial community structure, particularly of methanogens than temperature. | - |
dc.identifier.bibliographicCitation | ENERGIES, v.11, no.4, pp.865 | - |
dc.identifier.doi | 10.3390/en11040865 | - |
dc.identifier.issn | 1996-1073 | - |
dc.identifier.scopusid | 2-s2.0-85045375541 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/24027 | - |
dc.identifier.url | http://www.mdpi.com/1996-1073/11/4/865 | - |
dc.identifier.wosid | 000434703400176 | - |
dc.language | 영어 | - |
dc.publisher | MDPI AG | - |
dc.title | Effect of Mild-Temperature Thermo-Alkaline Pretreatment on the Solubilization and Anaerobic Digestion of Spent Coffee Grounds | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Anaerobic digestion | - |
dc.subject.keywordAuthor | Microbial community structure | - |
dc.subject.keywordAuthor | Response surface analysis | - |
dc.subject.keywordAuthor | Spent coffee grounds | - |
dc.subject.keywordAuthor | Thermo-alkaline pretreatment | - |
dc.subject.keywordPlus | MICROBIAL COMMUNITY STRUCTURE | - |
dc.subject.keywordPlus | WASTE ACTIVATED-SLUDGE | - |
dc.subject.keywordPlus | LIGNOCELLULOSIC BIOMASS | - |
dc.subject.keywordPlus | BIOGAS PRODUCTION | - |
dc.subject.keywordPlus | OIL | - |
dc.subject.keywordPlus | FERMENTATION | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
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.