liu.seSearch for publications in DiVA
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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
Emergy Assessment of a Wastewater Treatment Pond System in the Lake Victoria Basin
Div. of Ecotechnology, Mid Sweden University, Östersund, Sweden.
Linköpings universitet, Institutionen för tema, Tema vatten i natur och samhälle. Linköpings universitet, Filosofiska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biologi. Linköpings universitet, Tekniska fakulteten. (IFM Biology)ORCID-id: 0000-0002-0722-6083
Dept. of Fisheries and Aquatic Sciences, University of Eldoret, Eldoret, Kenya.
2017 (engelsk)Inngår i: Journal of Environmental Accounting and Management, ISSN 2325-6192, E-ISSN 2325-6206, Vol. 5, nr 1, s. 11-26Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

As part of efforts to reduce the eutrophying load to Lake Victoria, a wastewater treatment system at one of the sugar factories in Kenya was evaluated with the ecosystem ecology method emergy accounting. As a comparison a traditional cost analysis was also performed. The analysis included the local and imported ecosystem services. After preliminary treatment the effluent was discharged into a series of 12 stabilisation ponds. The removal of COD and TSS was high, whereas phosphorus concentrations were reduced by less than 20 %. The monetary costs were dominated by operation and management cost, some of which could probably be reduced by more effective management. The local ecosystem services in emergy terms contributed only 1% (or 1,000 Em$) to the treatment system. Imported ecosystem services in purchased lime contributed more to the treatment system, 22% (or 24,600 Em$). Since the land costs in the area were low, land demanding treatment methods using free local ecosystem services, could be cost effective choices for wastewater management. Ecosystem ecology methods as emergy accountings can guide these choices by revealing the additional contribution of free ecosystem services. Emergy accountings seem to need further clarification regarding differences in micro-/macroeconomic views.

sted, utgiver, år, opplag, sider
Carbon, United States: L & H Scientific Publishing, LLC , 2017. Vol. 5, nr 1, s. 11-26
Emneord [en]
Ecosystem ecology, Sewage treatment, Environmental valuation, Kenya, Stabilization ponds, Oxidation ponds
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-151258DOI: 10.5890/JEAM.2017.03.002ISI: 000407588500002OAI: oai:DiVA.org:liu-151258DiVA, id: diva2:1248127
Forskningsfinansiär
Sida - Swedish International Development Cooperation AgencyTilgjengelig fra: 2018-09-14 Laget: 2018-09-14 Sist oppdatert: 2020-02-21bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekst

Personposter BETA

Tonderski, Karin

Søk i DiVA

Av forfatter/redaktør
Billgren, CharlotteTonderski, Karin
Av organisasjonen
I samme tidsskrift
Journal of Environmental Accounting and Management

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 37 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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