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Article: Effect of pH change on the performance and microbial community of enhanced biological phosphate removal process

TitleEffect of pH change on the performance and microbial community of enhanced biological phosphate removal process
Authors
Keywords16s rDNA
EBPR
GAO
PAO
pH
Phosphate removal
Issue Date2005
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/71002188
Citation
Biotechnology And Bioengineering, 2005, v. 92 n. 2, p. 173-182 How to Cite?
AbstractAn acetate-rich wastewater, containing 170 mg/ L of total organic carbon (TOC), 13 mg/L of N, and 15 mg/L of P, was treated using the enhanced biological phosphate removal (EBPR) process operated in a sequencing batch reactor. A slight change of pH of the mixed liquor from 7.0 to 6.5 led to a complete loss of phosphate-removing capability and a drastic change of microbial populations. The process steadily removed 94% of TOC and 99.9% of P from the wastewater at pH 7.0, but only 93% TOC and 17% of P 14 days after the pH was lowered to pH 6.5. The sludge contained 8.8% P at pH 7.0, but only 1.9% at pH 6.5. Based on 16S rDNA analysis, 64.8% of the clones obtained from the sludge at pH 7.0 were absent in the pH 6.5 sludge. The missing microbes, some of which were likely responsible for the phosphate removal at pH 7.0, included β-Proteobacteria, Actinobacteria, Bacteriodetes/Chlorobi group, plus photosynthetic bacteria and Defluvicoccus of the α-Proteobacteria. Among them, the last two groups, which represented 9.3% and 10.1% of the EBPR sludge at pH 7.0, have rarely been reported in an EBPR system. © 2005 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/124602
ISSN
2015 Impact Factor: 4.243
2015 SCImago Journal Rankings: 1.633
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Ten_HK
dc.contributor.authorLiu, Yen_HK
dc.contributor.authorFang, HHPen_HK
dc.date.accessioned2010-10-31T10:43:36Z-
dc.date.available2010-10-31T10:43:36Z-
dc.date.issued2005en_HK
dc.identifier.citationBiotechnology And Bioengineering, 2005, v. 92 n. 2, p. 173-182en_HK
dc.identifier.issn0006-3592en_HK
dc.identifier.urihttp://hdl.handle.net/10722/124602-
dc.description.abstractAn acetate-rich wastewater, containing 170 mg/ L of total organic carbon (TOC), 13 mg/L of N, and 15 mg/L of P, was treated using the enhanced biological phosphate removal (EBPR) process operated in a sequencing batch reactor. A slight change of pH of the mixed liquor from 7.0 to 6.5 led to a complete loss of phosphate-removing capability and a drastic change of microbial populations. The process steadily removed 94% of TOC and 99.9% of P from the wastewater at pH 7.0, but only 93% TOC and 17% of P 14 days after the pH was lowered to pH 6.5. The sludge contained 8.8% P at pH 7.0, but only 1.9% at pH 6.5. Based on 16S rDNA analysis, 64.8% of the clones obtained from the sludge at pH 7.0 were absent in the pH 6.5 sludge. The missing microbes, some of which were likely responsible for the phosphate removal at pH 7.0, included β-Proteobacteria, Actinobacteria, Bacteriodetes/Chlorobi group, plus photosynthetic bacteria and Defluvicoccus of the α-Proteobacteria. Among them, the last two groups, which represented 9.3% and 10.1% of the EBPR sludge at pH 7.0, have rarely been reported in an EBPR system. © 2005 Wiley Periodicals, Inc.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/71002188en_HK
dc.relation.ispartofBiotechnology and Bioengineeringen_HK
dc.rightsBiotechnology and Bioengineering. Copyright © John Wiley & Sons, Inc.-
dc.rightsBefore publication: 'This is a preprint of an article accepted for publication in [The Journal of Pathology] Copyright © ([year]) ([Pathological Society of Great Britain and Ireland])'. After publication: the preprint notice should be amended to follows: 'This is a preprint of an article published in [include the complete citation information for the final version of the Contribution as published in the print edition of the Journal]' For Cochrane Library/ Cochrane Database of Systematic Reviews, add statement & acknowledgement : ‘This review is published as a Cochrane Review in the Cochrane Database of Systematic Reviews 20XX, Issue X. Cochrane Reviews are regularly updated as new evidence emerges and in response to comments and criticisms, and the Cochrane Database of Systematic Reviews should be consulted for the most recent version of the Review.’ Please include reference to the Review and hyperlink to the original version using the following format e.g. Authors. Title of Review. Cochrane Database of Systematic Reviews 20XX, Issue #. Art. No.: CD00XXXX. DOI: 10.1002/14651858.CD00XXXX (insert persistent link to the article by using the URL: http://dx.doi.org/10.1002/14651858.CD00XXXX) (This statement should refer to the most recent issue of the Cochrane Database of Systematic Reviews in which the Review published.)-
dc.subject16s rDNAen_HK
dc.subjectEBPRen_HK
dc.subjectGAOen_HK
dc.subjectPAOen_HK
dc.subjectpHen_HK
dc.subjectPhosphate removalen_HK
dc.subject.meshBacteria - isolation and purification - metabolism-
dc.subject.meshBioreactors - microbiology-
dc.subject.meshPhosphates - isolation and purification - metabolism-
dc.subject.meshSewage - microbiology-
dc.subject.meshWater Microbiology-
dc.titleEffect of pH change on the performance and microbial community of enhanced biological phosphate removal processen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0006-3592&volume=92&issue=2&spage=173&epage=182&date=2005&atitle=Effect+of+pH+change+on+the+performance+and+microbial+community+of+enhanced+biological+phosphate+removal+processen_HK
dc.identifier.emailZhang, T:zhangt@hkucc.hku.hken_HK
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_HK
dc.identifier.authorityZhang, T=rp00211en_HK
dc.identifier.authorityFang, HHP=rp00115en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/bit.20589en_HK
dc.identifier.pmid15962340-
dc.identifier.scopuseid_2-s2.0-27744571412en_HK
dc.identifier.hkuros182631en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-27744571412&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume92en_HK
dc.identifier.issue2en_HK
dc.identifier.spage173en_HK
dc.identifier.epage182en_HK
dc.identifier.isiWOS:000232253100006-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZhang, T=24470677400en_HK
dc.identifier.scopusauthoridLiu, Y=36013132500en_HK
dc.identifier.scopusauthoridFang, HHP=7402542625en_HK

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