Sustainable engineering of sewers and sewage treatment plants for scenarios with urine diversion.

Freguia, S; Sharma, K; Benichou, O; Mulliss, M; Shon, HK

Sustainable engineering of sewers and sewage treatment plants for scenarios with urine diversion.

Freguia, S Sharma, K Benichou, O Mulliss, M Shon, HK

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Hazardous Materials, 2021, 415, pp. 1-7
Issue Date:: 2021-08-05

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Field	Value	Language
dc.contributor.author	Freguia, S
dc.contributor.author	Sharma, K
dc.contributor.author	Benichou, O
dc.contributor.author	Mulliss, M
dc.contributor.author	Shon, HK
dc.date.accessioned	2022-05-03T04:33:04Z
dc.date.available	2021-03-05
dc.date.available	2022-05-03T04:33:04Z
dc.date.issued	2021-08-05
dc.identifier.citation	Journal of Hazardous Materials, 2021, 415, pp. 1-7
dc.identifier.issn	0304-3894
dc.identifier.issn	1873-3336
dc.identifier.uri	http://hdl.handle.net/10453/156930
dc.description.abstract	Urine diversion (UD) has been studied for decades as a way to enable distributed sanitation and to recycle nutrients onto land to fuel circular economies. No study to date has attempted a quantitative technical and economic analysis of the downstream effects of UD on sewage transport and treatment. This work used the SeweX model to reveal for the first time that through UD, hydrogen sulfide concentration in sewer headspaces can be reduced, and consequently sewer corrosion can be reduced. For a long rising main of 5 km, sewer headspace H2S can be reduced from 280 ppm to 200 ppm by diverting 75% of the urine. The same scenario enables the reduction of sewer corrosion from 12 to 10 mm/yr. Modeling sewage treatment plants with BioWin showed that sewage treatment responds to UD with a sharp reduction of the anoxic volume and a decrease of energy requirement by up to 50% at 75% UD. An upgrade of bioreactors to increase capacity by 20% can be completely avoided if 7% of the catchment's urine is diverted. Reductions in upgrade expenditure by up to 75% can provide the economic incentive for the uptake of UD.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation.ispartof	Journal of Hazardous Materials
dc.relation.isbasedon	10.1016/j.jhazmat.2021.125609
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	03 Chemical Sciences, 05 Environmental Sciences, 09 Engineering
dc.subject.classification	Strategic, Defence & Security Studies
dc.subject.mesh	Bioreactors
dc.subject.mesh	Corrosion
dc.subject.mesh	Hydrogen Sulfide
dc.subject.mesh	Sewage
dc.subject.mesh	Sulfides
dc.subject.mesh	Bioreactors
dc.subject.mesh	Corrosion
dc.subject.mesh	Hydrogen Sulfide
dc.subject.mesh	Sewage
dc.subject.mesh	Sulfides
dc.subject.mesh	Hydrogen Sulfide
dc.subject.mesh	Sulfides
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Corrosion
dc.title	Sustainable engineering of sewers and sewage treatment plants for scenarios with urine diversion.
dc.type	Journal Article
utslib.citation.volume	415
utslib.location.activity	Netherlands
utslib.for	03 Chemical Sciences
utslib.for	05 Environmental Sciences
utslib.for	09 Engineering
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	open_access	*
pubs.consider-herdc	false
utslib.copyright.embargo	2023-08-05T00:00:00+1000Z
dc.date.updated	2022-05-03T04:33:00Z
pubs.publication-status	Published
pubs.volume	415

Abstract:

Urine diversion (UD) has been studied for decades as a way to enable distributed sanitation and to recycle nutrients onto land to fuel circular economies. No study to date has attempted a quantitative technical and economic analysis of the downstream effects of UD on sewage transport and treatment. This work used the SeweX model to reveal for the first time that through UD, hydrogen sulfide concentration in sewer headspaces can be reduced, and consequently sewer corrosion can be reduced. For a long rising main of 5 km, sewer headspace H2S can be reduced from 280 ppm to 200 ppm by diverting 75% of the urine. The same scenario enables the reduction of sewer corrosion from 12 to 10 mm/yr. Modeling sewage treatment plants with BioWin showed that sewage treatment responds to UD with a sharp reduction of the anoxic volume and a decrease of energy requirement by up to 50% at 75% UD. An upgrade of bioreactors to increase capacity by 20% can be completely avoided if 7% of the catchment's urine is diverted. Reductions in upgrade expenditure by up to 75% can provide the economic incentive for the uptake of UD.

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http://hdl.handle.net/10453/156930