DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Dong-Hoon | ko |
dc.contributor.author | Cha, Jaehwan | ko |
dc.contributor.author | Kang, Seoktae | ko |
dc.contributor.author | Kim, Mi-Sun | ko |
dc.date.accessioned | 2015-11-20T07:43:42Z | - |
dc.date.available | 2015-11-20T07:43:42Z | - |
dc.date.created | 2015-08-27 | - |
dc.date.created | 2015-08-27 | - |
dc.date.created | 2015-08-27 | - |
dc.date.created | 2015-08-27 | - |
dc.date.issued | 2013-05 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.38, no.14, pp.6161 - 6166 | - |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | http://hdl.handle.net/10203/200845 | - |
dc.description.abstract | In the present work, a continuous photo-fermentative hydrogen (H-2) production from lactate was attempted at various hydraulic retention times (HRTs) (48-120 h). Electron balance was made at each operating conditions to elucidate different performances. At 120 h HRT, H-2 production was negligible, while 42% and 52% of substrate electrons diverted towards cell growth and soluble microbial products (SMPs), respectively. After changing HRT to 96 h, H-2 yield jumped to 2.3 mol-H-2/mol-lactateadded with less SMPs production and minimal cell growth. The highest H-2 production rate of 260 mL-H-2/L-fermenter/d was also achieved at 96 h HRT. When HRT was further shortened to 72 and 48 h, H-2 yield dropped to 1.4 and 0.2 mol-H-2/mol-lactate(added), respectively. While almost all of the lactate was degraded at <72 h HRT, only 65% of the lactate was consumed at 48 h HRT. From 200th day, the feedstock was changed to lactate-rich acidified food waste, which was obtained via one-day fermentation of food waste and subsequent centrifugation. At 2 g chemical oxygen demand/L, substrate conversion efficiency reached 35%, which was slightly lower than that of feeding pure lactate. SMPs were found to be mainly consisted of low molecular weight compounds (<500 Da), and the majority of organic matters were aromatic proteins at 120 h HRT and it was shifted to humic-like region in 96 h HRT. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Continuous photo-fermentative hydrogen production from lactate and lactate-rich acidified food waste | - |
dc.type | Article | - |
dc.identifier.wosid | 000319232500078 | - |
dc.identifier.scopusid | 2-s2.0-84876728526 | - |
dc.type.rims | ART | - |
dc.citation.volume | 38 | - |
dc.citation.issue | 14 | - |
dc.citation.beginningpage | 6161 | - |
dc.citation.endingpage | 6166 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.identifier.doi | 10.1016/j.ijhydene.2012.12.072 | - |
dc.contributor.localauthor | Kang, Seoktae | - |
dc.contributor.nonIdAuthor | Kim, Dong-Hoon | - |
dc.contributor.nonIdAuthor | Cha, Jaehwan | - |
dc.contributor.nonIdAuthor | Kim, Mi-Sun | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Photo-fermentative hydrogen | - |
dc.subject.keywordAuthor | production | - |
dc.subject.keywordAuthor | Lactate | - |
dc.subject.keywordAuthor | Hydraulic retention time | - |
dc.subject.keywordAuthor | Electron balance | - |
dc.subject.keywordAuthor | Soluble microbial products | - |
dc.subject.keywordPlus | SOLUBLE MICROBIAL PRODUCTS | - |
dc.subject.keywordPlus | RHODOBACTER-SPHAEROIDES | - |
dc.subject.keywordPlus | ACCUMULATION | - |
dc.subject.keywordPlus | BACTERIA | - |
dc.subject.keywordPlus | SLUDGE | - |
dc.subject.keywordPlus | PHB | - |
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