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dc.contributor.authorWang, Yali
dc.contributor.authorWang, Dongbo
dc.contributor.authorLiu, Yiwen
dc.contributor.authorWang, Qilin
dc.contributor.authorChen, Fei
dc.contributor.authorYang, Qi
dc.contributor.authorLi, Xiaoming
dc.contributor.authorZeng, Guangming
dc.contributor.authorLi, Hailong
dc.date.accessioned2018-02-01T00:45:00Z
dc.date.available2018-02-01T00:45:00Z
dc.date.issued2017
dc.identifier.issn0043-1354
dc.identifier.doi10.1016/j.watres.2017.09.062
dc.identifier.urihttp://hdl.handle.net/10072/368746
dc.description.abstractTriclocarban (TCC), one typical antibacterial agent being widely used in various applications, was found to be present in waste activated sludge at significant levels. To date, however, its effect on anaerobic fermentation of sludge has not been investigated. This work therefore aims to fill this knowledge gap. Experimental results showed that when TCC content in sludge increased from 26.7 ± 5.3 to 520.5 ± 12.6 mg per kilogram total suspended solids, the maximum concentration of short-chain fatty acids (SCFA) increased from 32.6 ± 2.5 to 228.2 ± 3.6 (without pH control) and from 211.7 ± 2.4 to 378.3 ± 3.2 mg COD/g VSS (initial pH 10), respectively. The large promotion of acetic acid was found to be the major reason for the enhancement of total SCFA production. Although a significant level of TCC was degraded in the fermentation process, SCFA was neither produced from TCC nor affected by its major intermediates at the relevant levels. It was found that TCC facilitated solubilization, acidogenesis, acetogenesis, and homoacetogenesis processes but inhibited methanogenesis process. Microbial analysis revealed that the increase of TCC increased the microbial community diversity, the abundances of SCFA (especially acetic acid) producers, and the activities of key enzymes relevant to acetic acid production.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom150
dc.relation.ispartofpageto161
dc.relation.ispartofjournalWater Research
dc.relation.ispartofvolume127
dc.subject.fieldofresearchEnvironmentally sustainable engineering
dc.subject.fieldofresearchGlobal and planetary environmental engineering
dc.subject.fieldofresearchcode401102
dc.subject.fieldofresearchcode401103
dc.titleTriclocarban enhances short-chain fatty acids production from anaerobic fermentation of waste activated sludge
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Qilin


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