Wastewater Effect on the Deposition of Cohesive Sediment

Khastar-Boroujeni, M; Esmaili, K; Samadi-Boroujeni, H; Ziaei, A

Wastewater Effect on the Deposition of Cohesive Sediment

Khastar-Boroujeni, M Esmaili, K Samadi-Boroujeni, H

Ziaei, A

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: Journal of Environmental Engineering (United States), 2018, 144, (1)
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Khastar-Boroujeni, M
dc.contributor.author	Esmaili, K
dc.contributor.author	Samadi-Boroujeni, H https://orcid.org/0000-0001-7423-9362
dc.contributor.author	Ziaei, A
dc.date.accessioned	2022-09-11T20:16:07Z
dc.date.available	2022-09-11T20:16:07Z
dc.date.issued	2018-01-01
dc.identifier.citation	Journal of Environmental Engineering (United States), 2018, 144, (1)
dc.identifier.issn	0733-9372
dc.identifier.issn	1943-7870
dc.identifier.uri	http://hdl.handle.net/10453/161668
dc.description.abstract	In this study, the characteristics of sediment deposition with three levels of wastewater, different shear stress, and initial sediment concentration were investigated in an annular flume. Sediment used for experiments was taken from the Pirbalut small dam reservoir, located in southwest Iran. The velocity and the shear stress profiles were measured, using an acoustic Doppler velocimeter (ADV). The results showed that the concentration of cohesive sediment decreased with time, and finally it reached an equilibrium concentration of sediment. The ratio of equilibrium concentration to initial concentration (Ceq:C) with a constant shear stress, for different initial sediment concentrations and different levels of wastewater were almost the same. The equilibrium concentration depends on the initial concentration sediment. Adding wastewater to the mixture caused the increasing of threshold and full deposition shear stress. The critical shear stresses for full deposition for three wastewater levels of 0, 30, and 60% are obtained as 0.050, 0.081, and 0.084 N/m2, respectively.
dc.language	English
dc.publisher	ASCE-AMER SOC CIVIL ENGINEERS
dc.relation.ispartof	Journal of Environmental Engineering (United States)
dc.relation.isbasedon	10.1061/(ASCE)EE.1943-7870.0001270
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Environmental Engineering
dc.title	Wastewater Effect on the Deposition of Cohesive Sediment
dc.type	Journal Article
utslib.citation.volume	144
utslib.for	0904 Chemical Engineering
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental 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
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-11T20:16:06Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	144
utslib.citation.issue	1

Abstract:

In this study, the characteristics of sediment deposition with three levels of wastewater, different shear stress, and initial sediment concentration were investigated in an annular flume. Sediment used for experiments was taken from the Pirbalut small dam reservoir, located in southwest Iran. The velocity and the shear stress profiles were measured, using an acoustic Doppler velocimeter (ADV). The results showed that the concentration of cohesive sediment decreased with time, and finally it reached an equilibrium concentration of sediment. The ratio of equilibrium concentration to initial concentration (Ceq:C) with a constant shear stress, for different initial sediment concentrations and different levels of wastewater were almost the same. The equilibrium concentration depends on the initial concentration sediment. Adding wastewater to the mixture caused the increasing of threshold and full deposition shear stress. The critical shear stresses for full deposition for three wastewater levels of 0, 30, and 60% are obtained as 0.050, 0.081, and 0.084 N/m2, respectively.

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http://hdl.handle.net/10453/161668