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AuthorEmna, Feki
AuthorKarray, Fatma
AuthorMhiri, Najla
AuthorBattimelli, Audrey
AuthorSayadi, Sami
AuthorKhoufi, Sonia
Available date2022-08-29T08:38:41Z
Publication Date2022-10-31
Publication NameJournal of Water Process Engineering
Identifierhttp://dx.doi.org/10.1016/j.jwpe.2022.103020
CitationFeki, E., Karray, F., Mhiri, N., Battimelli, A., Sayadi, S., & Khoufi, S. (2022). Performance of UASB reactor treating waste activated sludge: Effect of electro-chemical disintegration on the anaerobic microbial population structure and abundance. Journal of Water Process Engineering, 49, 103020.
ISSN22147144
URIhttps://www.sciencedirect.com/science/article/pii/S2214714422004640
URIhttp://hdl.handle.net/10576/33487
AbstractThe electro-Fenton (EF) disintegration using iron electrodes was performed for the pretreatment of waste activated sludge (WAS). The effect of this electro-chemical pretreatment on anaerobic digestion (AD) performance and microbial population structure was studied. An improvement of biodegradability and bioaccessibility of organic matter was demonstrated. AD of pretreated WAS in an up-flow anaerobic sludge blanket reactor (UASB) resulted to an increase of biogas production by 60 % compared to control reactor without disintegration. PCR-DGGE and real-time qPCR analyses showed that the high abundance of bacteria and the coexistence of Coprothermobacter in the UASB digestate fed with disintegrated sample established a stable bacterial association which is in line with the AD performance. Besides, the increased number of methanogens along the process allowed the improvement of methane production in comparison to control reactor.
Languageen
PublisherElsevier
SubjectElectro-chemical disintegration
Waste activated sludge
Biogas production
UASB reactor
Microbial community structure
TitlePerformance of UASB reactor treating waste activated sludge: Effect of electro-chemical disintegration on the anaerobic microbial population structure and abundance
TypeArticle
Volume Number49
dc.accessType Open Access


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