Comparison of degradation kinetics of tannery wastewater treatment using a nonlinear model by salt-tolerant Nitrosomonas sp. and Nitrobacter sp.

Dang, B-T; Tran, DPH; Nguyen, N-K-Q; Cao, HTN; Tomoaki, I; Huynh, K-P-H; Pham, T-T; Varjani, S; Hao Ngo, H; Wang, Y-F; You, S-J; Bui, X-T

Comparison of degradation kinetics of tannery wastewater treatment using a nonlinear model by salt-tolerant Nitrosomonas sp. and Nitrobacter sp.

Dang, B-T Tran, DPH Nguyen, N-K-Q Cao, HTN Tomoaki, I Huynh, K-P-H Pham, T-T Varjani, S Hao Ngo, H Wang, Y-F You, S-J Bui, X-T

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2022, 351, pp. 127000
Issue Date:: 2022-05

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Field	Value	Language
dc.contributor.author	Dang, B-T
dc.contributor.author	Tran, DPH
dc.contributor.author	Nguyen, N-K-Q
dc.contributor.author	Cao, HTN
dc.contributor.author	Tomoaki, I
dc.contributor.author	Huynh, K-P-H
dc.contributor.author	Pham, T-T
dc.contributor.author	Varjani, S
dc.contributor.author	Hao Ngo, H
dc.contributor.author	Wang, Y-F
dc.contributor.author	You, S-J
dc.contributor.author	Bui, X-T
dc.date.accessioned	2023-01-19T04:28:47Z
dc.date.available	2022-03-09
dc.date.available	2023-01-19T04:28:47Z
dc.date.issued	2022-05
dc.identifier.citation	Bioresour Technol, 2022, 351, pp. 127000
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/165215
dc.description.abstract	Conventional biological treatment has been reported to be ineffective for pollutant removal in tannery wastewater due to high salinity. To overcome it, this work used salt-tolerant bacteria (STB) isolated from a membrane bioreactor to evaluate the organic and nutrient removal through a series of batch experiments. Compared with the control, the STB reactor enhanced the reduction of persistent organics by 11% based on the double exponential decay model. Besides, the removal of NH4+-N is 26% higher, satisfying the first-order decay model. The nitrification was inhibited entirely in control during 48 h, whilst the assimilation process involved 55% of total nitrogen removal. In the STB reactor, nitrification occurred after 12 h, resulting in significantly increased NO2--N and NO3--N concentrations according to the logistic function. Although nitrification was successfully activated, C/N ratios and free ammonia were identified as limiting factors for STB activity, requiring mitigation strategies in further studies.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier BV
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2022.127000
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Ammonia
dc.subject.mesh	Bioreactors
dc.subject.mesh	Kinetics
dc.subject.mesh	Nitrification
dc.subject.mesh	Nitrites
dc.subject.mesh	Nitrobacter
dc.subject.mesh	Nitrogen
dc.subject.mesh	Nitrosomonas
dc.subject.mesh	Nonlinear Dynamics
dc.subject.mesh	Wastewater
dc.subject.mesh	Water Purification
dc.subject.mesh	Nitrobacter
dc.subject.mesh	Nitrosomonas
dc.subject.mesh	Nitrites
dc.subject.mesh	Nitrogen
dc.subject.mesh	Ammonia
dc.subject.mesh	Bioreactors
dc.subject.mesh	Water Purification
dc.subject.mesh	Kinetics
dc.subject.mesh	Nonlinear Dynamics
dc.subject.mesh	Nitrification
dc.subject.mesh	Waste Water
dc.title	Comparison of degradation kinetics of tannery wastewater treatment using a nonlinear model by salt-tolerant Nitrosomonas sp. and Nitrobacter sp.
dc.type	Journal Article
utslib.citation.volume	351
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-01-19T04:28:46Z
pubs.publication-status	Published
pubs.volume	351

Abstract:

Conventional biological treatment has been reported to be ineffective for pollutant removal in tannery wastewater due to high salinity. To overcome it, this work used salt-tolerant bacteria (STB) isolated from a membrane bioreactor to evaluate the organic and nutrient removal through a series of batch experiments. Compared with the control, the STB reactor enhanced the reduction of persistent organics by 11% based on the double exponential decay model. Besides, the removal of NH4+-N is 26% higher, satisfying the first-order decay model. The nitrification was inhibited entirely in control during 48 h, whilst the assimilation process involved 55% of total nitrogen removal. In the STB reactor, nitrification occurred after 12 h, resulting in significantly increased NO2--N and NO3--N concentrations according to the logistic function. Although nitrification was successfully activated, C/N ratios and free ammonia were identified as limiting factors for STB activity, requiring mitigation strategies in further studies.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/165215