Holistic sludge management through ozonation: A critical review

Semblante, GU; Hai, FI; Dionysiou, DD; Fukushi, K; Price, WE; Nghiem, LD

Holistic sludge management through ozonation: A critical review

Semblante, GU Hai, FI Dionysiou, DD Fukushi, K Price, WE Nghiem, LD

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Publication Type:: Journal Article
Citation:: Journal of Environmental Management, 2017, 185 pp. 79 - 95
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Semblante, GU	en_US
dc.contributor.author	Hai, FI	en_US
dc.contributor.author	Dionysiou, DD	en_US
dc.contributor.author	Fukushi, K	en_US
dc.contributor.author	Price, WE	en_US
dc.contributor.author	Nghiem, LD https://orcid.org/0000-0002-9039-5792	en_US
dc.date.available	2016-10-15	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Journal of Environmental Management, 2017, 185 pp. 79 - 95	en_US
dc.identifier.issn	0301-4797	en_US
dc.identifier.uri	http://hdl.handle.net/10453/124895
dc.description.abstract	© 2016 Elsevier Ltd This paper critically reviews the multidimensional benefits of ozonation in wastewater treatment plants. These benefits include sludge reduction, removal of emerging trace organic contaminants (TrOC) from wastewater and sludge, and resource recovery from sludge. Literature shows that ozonation leads to sludge solubilisation, reducing overall biomass yield. Sludge solubilisation is primarily influenced by ozone dosage, which, in turn, depends on the fraction of ozonated sludge, ozone concentration, and sludge concentration. Additionally, sludge ozonation facilitates the removal of TrOCs from wastewater. On the other hand, by inducing cell lysis, ozonation increases the chemical oxygen demand (COD) and nutrient concentration of the sludge supernatant, which deteriorates effluent quality. This issue can be resolved by implementing resource recovery. Thus far, successful retrieval of phosphorous from ozonated sludge supernatant has been performed. The recovery of phosphorous and other resources from sludge could help offset the operation cost of ozonation, and give greater incentive for wastewater treatment plants to adapt this approach.	en_US
dc.relation.ispartof	Journal of Environmental Management	en_US
dc.relation.isbasedon	10.1016/j.jenvman.2016.10.022	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Ozone	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Biological Oxygen Demand Analysis	en_US
dc.subject.mesh	Waste Water	en_US
dc.subject.mesh	Waste Disposal Facilities	en_US
dc.title	Holistic sludge management through ozonation: A critical review	en_US
dc.type	Journal Article
utslib.citation.volume	185	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	MD Multidisciplinary	en_US
pubs.embargo.period	Not known	en_US
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
pubs.publication-status	Published	en_US
pubs.volume	185	en_US

Abstract:

© 2016 Elsevier Ltd This paper critically reviews the multidimensional benefits of ozonation in wastewater treatment plants. These benefits include sludge reduction, removal of emerging trace organic contaminants (TrOC) from wastewater and sludge, and resource recovery from sludge. Literature shows that ozonation leads to sludge solubilisation, reducing overall biomass yield. Sludge solubilisation is primarily influenced by ozone dosage, which, in turn, depends on the fraction of ozonated sludge, ozone concentration, and sludge concentration. Additionally, sludge ozonation facilitates the removal of TrOCs from wastewater. On the other hand, by inducing cell lysis, ozonation increases the chemical oxygen demand (COD) and nutrient concentration of the sludge supernatant, which deteriorates effluent quality. This issue can be resolved by implementing resource recovery. Thus far, successful retrieval of phosphorous from ozonated sludge supernatant has been performed. The recovery of phosphorous and other resources from sludge could help offset the operation cost of ozonation, and give greater incentive for wastewater treatment plants to adapt this approach.

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http://hdl.handle.net/10453/124895