DC Field | Value | Language |
---|---|---|
dc.contributor.author | Mostafa, Alsayed | ko |
dc.contributor.author | Im, Seongwon | ko |
dc.contributor.author | Song, Young‐Chae | ko |
dc.contributor.author | Kang, Seoktae | ko |
dc.contributor.author | Kim, Dong‐Hoon | ko |
dc.date.accessioned | 2020-05-06T05:20:13Z | - |
dc.date.available | 2020-05-06T05:20:13Z | - |
dc.date.created | 2020-02-28 | - |
dc.date.created | 2020-02-28 | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | MICROORGANISMS, v.8, no.3, pp.333 | - |
dc.identifier.issn | 2076-2607 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274095 | - |
dc.description.abstract | This study investigated the impact of stimulating direct interspecies electron transfer (DIET), by supplementing nano-sized magnetite (nFe(3)O(4), 0.5 g Fe/g VSS) and carbon nanotubes (CNT, 1 g/L), in anaerobic digestion of oleic acid (OA) at various concentrations (0.10-4.00 g chemical oxygen demand(COD)/L). Both supplementations could enhance CH4 production, and its beneficial impact increased with increased OA concentration. The biggest improvements of 114% and 165% compared to the control were achieved by nFe(3)O(4) and CNT, respectively, at OA of 4 g COD/L. The enhancement can be attributed to the increased sludge conductivity: 7.1 +/- 0.5 (control), 12.5 +/- 0.8 (nFe(3)O(4)-added), and 15.7 +/- 1.1 mu S/cm (CNT-supplemented). Dissolved iron concentration, released from nFe(3)O(4), seemed to have a negligible role in improving CH4 production. The excretion of electron shuttles, i.e., humic-like substances and protein-like substances, were found to be stimulated by supplementing nFe(3)O(4) and CNT. Microbial diversity was found to be simplified under DIET-stimulating conditions, whereby five genera accounted for 88% of the total sequences in the control, while more than 82% were represented by only two genera (Methanotrix concilli and Methanosarcina flavescens) by supplementing nFe(3)O(4) and CNT. In addition, the abudance of electro-active bacteria such as Syntrophomonas zehnderi was significantly increased from 17% to around 45%. | - |
dc.language | English | - |
dc.publisher | MDPI AG | - |
dc.title | Enhanced Anaerobic Digestion of Long Chain Fatty Acid by Adding Magnetite and Carbon Nanotubes | - |
dc.type | Article | - |
dc.identifier.wosid | 000525952700021 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 333 | - |
dc.citation.publicationname | MICROORGANISMS | - |
dc.identifier.doi | 10.3390/microorganisms8030333 | - |
dc.contributor.localauthor | Kang, Seoktae | - |
dc.contributor.nonIdAuthor | Mostafa, Alsayed | - |
dc.contributor.nonIdAuthor | Im, Seongwon | - |
dc.contributor.nonIdAuthor | Song, Young‐Chae | - |
dc.contributor.nonIdAuthor | Kim, Dong‐Hoon | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | long-chain fatty acid | - |
dc.subject.keywordAuthor | direct interspecies electron transfer | - |
dc.subject.keywordAuthor | anaerobic digestion | - |
dc.subject.keywordAuthor | magnetite | - |
dc.subject.keywordAuthor | carbon nanotubes | - |
dc.subject.keywordPlus | INTERSPECIES ELECTRON-TRANSFER | - |
dc.subject.keywordPlus | WASTE ACTIVATED-SLUDGE | - |
dc.subject.keywordPlus | EXTRACELLULAR POLYMERIC SUBSTANCES | - |
dc.subject.keywordPlus | COMPLEX ORGANIC WASTE | - |
dc.subject.keywordPlus | METHANE PRODUCTION | - |
dc.subject.keywordPlus | SYNTROPHIC METABOLISM | - |
dc.subject.keywordPlus | POTENTIAL ENHANCEMENT | - |
dc.subject.keywordPlus | CONDUCTIVE MATERIALS | - |
dc.subject.keywordPlus | MICROBIAL COMMUNITY | - |
dc.subject.keywordPlus | SP NOV. | - |
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