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Article: A membrane bioreactor for an innovative biological nitrogen removal process

TitleA membrane bioreactor for an innovative biological nitrogen removal process
Authors
KeywordsBiological nitrification-denitrification
Biological wastewater treatment
Intermediate settler
Membrane bioreactor (MBR)
Nitrogen removal
Issue Date2010
PublisherIWA Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst
Citation
Water Science And Technology, 2010, v. 61 n. 3, p. 671-676 How to Cite?
AbstractA hybrid system has been developed for biological nitrogen removal through nitrification-denitrification. The system includes an aerobic tank and an anoxic tank with an intermediate sludge settler connected to a membrane bioreactor (MBR) with a submerged 0.4 μm hollow-fiber membrane module. The laboratory system has a total working volume of 6.5 L treating a glucose-based synthetic wastewater. The experimental results demonstrate that the new process is highly effective for simultaneous organic and nitrogen removal. During the stationary operation, a sludge SS (suspended solids) concentration of 6 g/L or higher can be maintained in the reactors. The system has a COD (chemical oxygen demand) loading rate of up to 2,100 mg/L-d and a total nitrogen loading rate of up to 170mgN/L-d. More than 95% COD can be degraded, and the total nitrogen removal efficiency can be 90% or higher as the nitrogen is reduced from 100 to around 7.5 mg/L. A high quality effluent is produced with a SS of less than 1 mg/L. With the MBR, organic degradation, nitrogen removal and sludge-liquid separation can be well achieved within a short HRT of about 10 hr. © IWA Publishing 2010.
Persistent Identifierhttp://hdl.handle.net/10722/132397
ISSN
2015 Impact Factor: 1.064
2015 SCImago Journal Rankings: 0.469
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
Research Grants Council (RGC)HKU7149/06E
University Grants Council (UGC) of the Hong Kong SAR GovernmentSEG_HKU10
Funding Information:

This research was supported by URC funding from The University of Hong Kong, Grant HKU7149/06E from Research Grants Council (RGC) and Special Equipment Grant SEG_HKU10 from the University Grants Council (UGC) of the Hong Kong SAR Government. The technical assistance of Mr. Keith C.H. Wong is highly appreciated.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorChen, Wen_HK
dc.contributor.authorSun, FYen_HK
dc.contributor.authorWang, XMen_HK
dc.contributor.authorLi, XYen_HK
dc.date.accessioned2011-03-28T09:24:07Z-
dc.date.available2011-03-28T09:24:07Z-
dc.date.issued2010en_HK
dc.identifier.citationWater Science And Technology, 2010, v. 61 n. 3, p. 671-676en_HK
dc.identifier.issn0273-1223en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132397-
dc.description.abstractA hybrid system has been developed for biological nitrogen removal through nitrification-denitrification. The system includes an aerobic tank and an anoxic tank with an intermediate sludge settler connected to a membrane bioreactor (MBR) with a submerged 0.4 μm hollow-fiber membrane module. The laboratory system has a total working volume of 6.5 L treating a glucose-based synthetic wastewater. The experimental results demonstrate that the new process is highly effective for simultaneous organic and nitrogen removal. During the stationary operation, a sludge SS (suspended solids) concentration of 6 g/L or higher can be maintained in the reactors. The system has a COD (chemical oxygen demand) loading rate of up to 2,100 mg/L-d and a total nitrogen loading rate of up to 170mgN/L-d. More than 95% COD can be degraded, and the total nitrogen removal efficiency can be 90% or higher as the nitrogen is reduced from 100 to around 7.5 mg/L. A high quality effluent is produced with a SS of less than 1 mg/L. With the MBR, organic degradation, nitrogen removal and sludge-liquid separation can be well achieved within a short HRT of about 10 hr. © IWA Publishing 2010.en_HK
dc.languageengen_US
dc.publisherIWA Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwsten_HK
dc.relation.ispartofWater Science and Technologyen_HK
dc.subjectBiological nitrification-denitrificationen_HK
dc.subjectBiological wastewater treatmenten_HK
dc.subjectIntermediate settleren_HK
dc.subjectMembrane bioreactor (MBR)en_HK
dc.subjectNitrogen removalen_HK
dc.titleA membrane bioreactor for an innovative biological nitrogen removal processen_HK
dc.typeArticleen_HK
dc.identifier.emailWang, XM: wangxm@hku.hken_HK
dc.identifier.emailLi, XY: xlia@hkucc.hku.hken_HK
dc.identifier.authorityWang, XM=rp01452en_HK
dc.identifier.authorityLi, XY=rp00222en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.2166/wst.2010.886en_HK
dc.identifier.pmid20150703-
dc.identifier.scopuseid_2-s2.0-77950472336en_HK
dc.identifier.hkuros178450-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77950472336&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume61en_HK
dc.identifier.issue3en_HK
dc.identifier.spage671en_HK
dc.identifier.epage676en_HK
dc.identifier.isiWOS:000274444500014-
dc.publisher.placeUnited Kingdomen_HK
dc.relation.projectEnvironmental Bio-Nano Interface (EBNI) Characterization System-
dc.identifier.scopusauthoridChen, W=7409642975en_HK
dc.identifier.scopusauthoridSun, FY=16064782300en_HK
dc.identifier.scopusauthoridWang, XM=23092524200en_HK
dc.identifier.scopusauthoridLi, XY=26642887900en_HK

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