Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Control of Microthrix parvicella and sludge bulking by ozone in a full-scale WWTP
RISE., SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik.
SLU Swedish University of Agricultural Sciences, Sweden.
SYVAB Himmerfjärdsverket, Sweden .
Aalborg University, Denmark; Danish Technological Institute, Denmark.
Vise andre og tillknytning
2016 (engelsk)Inngår i: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 73, nr 4, s. 866-872Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Bulking and rising sludge are common problems in wastewater treatment plants (WWTPs) and are primarily caused by increased growth of filamentous bacteria such as Microthrix parvicella. It has a negative impact on sludge settling properties in activated sludge (AS) process, in addition to being responsible for foam formation. Different methods can be used to control sludge bulking. The aim of this study was to evaluate the dosage of on-site generated ozone in the recycled AS flow in a fullscale WWTP having problems caused by M. parvicella. The evaluation of the experiment was assessed by process data, microscopic analysis and microbial screening on the experimental and control line before, during and after the period of ozone dosage. The ozone treatment resulted in decreased abundance of M. parvicella and improved the settling properties, without impairing the overall process performance. Both chemical oxygen demand (COD)-and N-removal were unaffected and the dominant populations involved in nitrification, as analysed by fluorescent in situ hybridization, remained during the experimental period. When the ozone treatment was terminated, the problems with sludge bulking reappeared, indicating the importance of continuous evaluation of the process.

sted, utgiver, år, opplag, sider
2016. Vol. 73, nr 4, s. 866-872
Emneord [en]
Activated sludge process, Filamentous bacteria, Fluorescent in situ hybridization, Nitrogen removal
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-27879DOI: 10.2166/wst.2015.560Scopus ID: 2-s2.0-84959317749OAI: oai:DiVA.org:ri-27879DiVA, id: diva2:1065631
Tilgjengelig fra: 2017-01-16 Laget: 2017-01-16 Sist oppdatert: 2020-12-01bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus
Av organisasjonen
I samme tidsskrift
Water Science and Technology

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 55 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.41.0