Biokinetics Of microbial consortia using biogenic sulfur as a novel electron donor for sustainable denitrification

Kostrytsia, A., Papirio, S., Morrison, L., Ijaz, U. Z. , Collins, G., Lens, P. N.L. and Esposito, G. (2018) Biokinetics Of microbial consortia using biogenic sulfur as a novel electron donor for sustainable denitrification. Bioresource Technology, 270, pp. 359-367. (doi:10.1016/j.biortech.2018.09.044) (PMID:30243243)

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Abstract

In this study, the biokinetics of autotrophic denitrification with biogenic S0 (ADBIOS) for the treatment of nitrogen pollution in wastewaters were investigated. The used biogenic S0, a by-product of gas desulfurization, was an elemental microcrystalline orthorhombic sulfur with a median size of 4.69 µm and a specific surface area of 3.38 m2/g, which made S0 particularly reactive and bioavailable. During denitritation, the biomass enriched on nitrite (NO2–) was capable of degrading up to 240 mg/l NO2–-N with a denitritation activity of 339.5 mg NO2–-N/g VSS·d. The use of biogenic S0 induced a low NO2–-N accumulation, hindering the NO2–-N negative impact on the denitrifying consortia and resulting in a specific denitrification activity of 223.0 mg NO3–-N/g VSS·d. Besides Thiobacillus being the most abundant genus, Moheibacter and Thermomonas were predominantly selected for denitrification and denitritation, respectively.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ijaz, Dr Umer Zeeshan
Authors: Kostrytsia, A., Papirio, S., Morrison, L., Ijaz, U. Z., Collins, G., Lens, P. N.L., and Esposito, G.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Bioresource Technology
Publisher:Elsevier
ISSN:0960-8524
ISSN (Online):1873-2976
Published Online:11 September 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Bioresource Technology 270: 359-367
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
652772Understanding microbial community through in situ environmental 'omic data synthesisUmer Zeeshan IjazNatural Environment Research Council (NERC)NE/L011956/1ENG - ENGINEERING INFRASTRUCTURE & ENVIR