Effects of sludge retention time on oxic-settling-anoxic process performance: Biosolids reduction and dewatering properties.

Semblante, GU; Hai, FI; Bustamante, H; Price, WE; Nghiem, LD

Effects of sludge retention time on oxic-settling-anoxic process performance: Biosolids reduction and dewatering properties.

Semblante, GU Hai, FI Bustamante, H Price, WE Nghiem, LD

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2016, 218, pp. 1187-1194
Issue Date:: 2016-10

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Field	Value	Language
dc.contributor.author	Semblante, GU
dc.contributor.author	Hai, FI
dc.contributor.author	Bustamante, H
dc.contributor.author	Price, WE
dc.contributor.author	Nghiem, LD
dc.date.accessioned	2022-02-08T06:47:03Z
dc.date.available	2016-07-14
dc.date.available	2022-02-08T06:47:03Z
dc.date.issued	2016-10
dc.identifier.citation	Bioresour Technol, 2016, 218, pp. 1187-1194
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/154297
dc.description.abstract	In this study, the effect of sludge retention time (SRT) on oxic-settling-anoxic (OSA) process was determined using a sequencing batch reactor (SBR) attached to external aerobic/anoxic reactors. The SRT of the external reactors was varied from 10 to 40d. Increasing SRT from 10 to 20d enhanced volatile solids destruction in the external anoxic reactor as evidenced by the release of nutrients, however, increasing the SRT to 40d did not enhance volatile solids destruction further. Relatively short SRT (10-20d) favoured the conversion of destroyed solids into inert products. The application of an intermediate SRT (20d) of the external reactor showed the highest sludge reduction performance (>35%). Moreover, at the optimum SRT, OSA improved sludge dewaterability as demonstrated by lower capillary suction time and higher dewatered cake solids content.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2016.07.061
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.title	Effects of sludge retention time on oxic-settling-anoxic process performance: Biosolids reduction and dewatering properties.
dc.type	Journal Article
utslib.citation.volume	218
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	2022-02-08T06:47:02Z
pubs.publication-status	Published
pubs.volume	218

Abstract:

In this study, the effect of sludge retention time (SRT) on oxic-settling-anoxic (OSA) process was determined using a sequencing batch reactor (SBR) attached to external aerobic/anoxic reactors. The SRT of the external reactors was varied from 10 to 40d. Increasing SRT from 10 to 20d enhanced volatile solids destruction in the external anoxic reactor as evidenced by the release of nutrients, however, increasing the SRT to 40d did not enhance volatile solids destruction further. Relatively short SRT (10-20d) favoured the conversion of destroyed solids into inert products. The application of an intermediate SRT (20d) of the external reactor showed the highest sludge reduction performance (>35%). Moreover, at the optimum SRT, OSA improved sludge dewaterability as demonstrated by lower capillary suction time and higher dewatered cake solids content.

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http://hdl.handle.net/10453/154297