Assimilable organic carbon (AOC) variation in reclaimed water: Insight on biological stability evaluation and control for sustainable water reuse

Chen, Z; Yu, T; Ngo, HH; Lu, Y; Li, G; Wu, Q; Li, K; Bai, Y; Liu, S; Hu, HY

Assimilable organic carbon (AOC) variation in reclaimed water: Insight on biological stability evaluation and control for sustainable water reuse

Chen, Z Yu, T Ngo, HH

Lu, Y Li, G Wu, Q Li, K Bai, Y Liu, S Hu, HY

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2018, 254 pp. 290 - 299
Issue Date:: 2018-04-01

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Field	Value	Language
dc.contributor.author	Chen, Z	en_US
dc.contributor.author	Yu, T	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Lu, Y	en_US
dc.contributor.author	Li, G	en_US
dc.contributor.author	Wu, Q	en_US
dc.contributor.author	Li, K	en_US
dc.contributor.author	Bai, Y	en_US
dc.contributor.author	Liu, S	en_US
dc.contributor.author	Hu, HY	en_US
dc.date.available	2020-05-25T19:13:24Z
dc.date.issued	2018-04-01	en_US
dc.identifier.citation	Bioresource Technology, 2018, 254 pp. 290 - 299	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/128041
dc.description.abstract	© 2018 Elsevier Ltd This review highlights the importance of conducting biological stability evaluation due to water reuse progression. Specifically, assimilable organic carbon (AOC) has been identified as a practical indicator for microbial occurrence and regrowth which ultimately influence biological stability. Newly modified AOC bioassays aimed for reclaimed water are introduced. Since elevated AOC levels are often detected after tertiary treatment, the review emphasizes that actions can be taken to either limit AOC levels prior to disinfection or conduct post-treatment (e.g. biological filtration) as a supplement to chemical oxidation based approaches (e.g. ozonation and chlorine disinfection). During subsequent distribution and storage, microbial community and possible microbial regrowth caused by complex interactions are discussed. It is suggested that microbial surveillance, AOC threshold values, real-time field applications and surrogate parameters could provide additional information. This review can be used to formulate regulatory plans and strategies, and to aid in deriving relevant control, management and operational guidance.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2018.01.111	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Water	en_US
dc.subject.mesh	Water Microbiology	en_US
dc.subject.mesh	Disinfection	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Water Supply	en_US
dc.title	Assimilable organic carbon (AOC) variation in reclaimed water: Insight on biological stability evaluation and control for sustainable water reuse	en_US
dc.type	Journal Article
utslib.citation.volume	254	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	0904 Chemical 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	254	en_US

Abstract:

© 2018 Elsevier Ltd This review highlights the importance of conducting biological stability evaluation due to water reuse progression. Specifically, assimilable organic carbon (AOC) has been identified as a practical indicator for microbial occurrence and regrowth which ultimately influence biological stability. Newly modified AOC bioassays aimed for reclaimed water are introduced. Since elevated AOC levels are often detected after tertiary treatment, the review emphasizes that actions can be taken to either limit AOC levels prior to disinfection or conduct post-treatment (e.g. biological filtration) as a supplement to chemical oxidation based approaches (e.g. ozonation and chlorine disinfection). During subsequent distribution and storage, microbial community and possible microbial regrowth caused by complex interactions are discussed. It is suggested that microbial surveillance, AOC threshold values, real-time field applications and surrogate parameters could provide additional information. This review can be used to formulate regulatory plans and strategies, and to aid in deriving relevant control, management and operational guidance.

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http://hdl.handle.net/10453/128041