Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content

Jeong, SY; Chang, SW; Ngo, HH; Guo, W; Nghiem, LD; Banu, JR; Jeon, BH; Nguyen, DD

Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content

Jeong, SY Chang, SW Ngo, HH

Guo, W

Nghiem, LD

Banu, JR Jeon, BH Nguyen, DD

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Publication Type:: Journal Article
Citation:: Waste Management, 2019, 85 pp. 214 - 221
Issue Date:: 2019-02-15

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Field	Value	Language
dc.contributor.author	Jeong, SY	en_US
dc.contributor.author	Chang, SW	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Nghiem, LD https://orcid.org/0000-0002-9039-5792	en_US
dc.contributor.author	Banu, JR	en_US
dc.contributor.author	Jeon, BH	en_US
dc.contributor.author	Nguyen, DD	en_US
dc.date.available	2021-02-01T18:02:44Z
dc.date.issued	2019-02-15	en_US
dc.identifier.citation	Waste Management, 2019, 85 pp. 214 - 221	en_US
dc.identifier.issn	0956-053X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133990
dc.description.abstract	© 2018 Elsevier Ltd The influence of thermal hydrolysis pretreatment (THP) on physicochemical properties (pH, total solids, volatile solids, chemical oxygen demand, total nitrogen, ammonium nitrogen, volatile fatty acids, viscosity, and cell morphology) and anaerobic biodegradability of highly concentrated waste activated sludge (WAS) with TS content ranging from 1 to 7% was evaluated at different temperatures ranging from 100 to 220 °C. The biomethane potential (BMP) of the WAS was systematically analyzed and evaluated. Images of its cellular structure were also analyzed. The results indicated that THP is a useful method for solubilizing volatile solids and enhancing CH 4 production regardless of the TS content of the WAS feed. The ultimate CH 4 production determined from the BMP analysis was 313–348 L CH 4 /kg VS (72.6–74.1% CH 4 ) at the optimum THP temperature of 180 °C. The results showed that THP could improve both the capacity and efficiency of anaerobic digestion, even at a high TS content, and could achieve the dual purpose of sludge reduction and higher energy recovery.	en_US
dc.relation.ispartof	Waste Management	en_US
dc.relation.isbasedon	10.1016/j.wasman.2018.12.026	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Methane	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Anaerobiosis	en_US
dc.subject.mesh	Hydrolysis	en_US
dc.subject.mesh	Biological Oxygen Demand Analysis	en_US
dc.title	Influence of thermal hydrolysis pretreatment on physicochemical properties and anaerobic biodegradability of waste activated sludge with different solids content	en_US
dc.type	Journal Article
utslib.citation.volume	85	en_US
utslib.for	0907 Environmental Engineering	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	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	85	en_US

Abstract:

© 2018 Elsevier Ltd The influence of thermal hydrolysis pretreatment (THP) on physicochemical properties (pH, total solids, volatile solids, chemical oxygen demand, total nitrogen, ammonium nitrogen, volatile fatty acids, viscosity, and cell morphology) and anaerobic biodegradability of highly concentrated waste activated sludge (WAS) with TS content ranging from 1 to 7% was evaluated at different temperatures ranging from 100 to 220 °C. The biomethane potential (BMP) of the WAS was systematically analyzed and evaluated. Images of its cellular structure were also analyzed. The results indicated that THP is a useful method for solubilizing volatile solids and enhancing CH 4 production regardless of the TS content of the WAS feed. The ultimate CH 4 production determined from the BMP analysis was 313–348 L CH 4 /kg VS (72.6–74.1% CH 4 ) at the optimum THP temperature of 180 °C. The results showed that THP could improve both the capacity and efficiency of anaerobic digestion, even at a high TS content, and could achieve the dual purpose of sludge reduction and higher energy recovery.

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http://hdl.handle.net/10453/133990