Change search
ReferencesLink to record
Permanent link

Direct link
Treatment of Phosphorus and Bacteria in Filters used for On-Site Sanitation in Cold Climate
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0003-0520-796X
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Number of Authors: 4
2016 (English)Conference paper (Refereed)
Abstract [en]

Swedish rural on-site wastewater facilities need to reduce the phosphorus (P) concentrations in the wastewater to prevent eutrophication of the Baltic Sea, as well as the bacteria concentrations to comply with EU standards for bathing water quality. The aim of this study was to investigate two different on-site filter systems at full-scale, sand filters and (often subsequently used) alkaline P filters towards their performance to treat P and bacteria from domestic wastewater. Flow-proportional composite samples were taken from five sand filter beds and two P filters. Four of the five investigated sand filters considerably reduced the concentration of total P in the wastewater. However, infiltrating soil / ground water may have diluted the effluents. The investigated P filters varied in performance. While one of them treated P effectively, the other one performed poorly, probably due to old age and clogging. Low inlet P concentrations impeded the general assessment of the P filters’ efficiency. Concentrations of four indicator bacteria, intestinal enterococci, E. coli, total coliforms and C. perfringens, were considerably reduced in four of the five investigated sand filter beds. Bacteria removal in the two investigated P filters was difficult to assess because of low bacteria concentrations in the influents.

Place, publisher, year, edition, pages
2016.
National Category
Other Environmental Engineering Water Engineering
Research subject
Urban Water Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-60087OAI: oai:DiVA.org:ltu-60087DiVA: diva2:1044025
Conference
13th IWA Specialized Conference on Small Water and Wastewater Systems & 5th IWA Specialized Conference on Resources-Oriented Sanitation, Athens, 14-16 Sept 2016
Available from: 2016-11-01 Created: 2016-11-01 Last updated: 2016-11-30Bibliographically approved

Open Access in DiVA

fulltext(89 kB)3 downloads
File information
File name FULLTEXT01.pdfFile size 89 kBChecksum SHA-512
ef119f3445d2632ff3900ed46ed681c35adf9c4088a3594ce34934a7c2a8fbae2ed079008a2a4c9fa75df1b8de4d1316b7f411c9686f51ce5defa75a940d53e5
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Herrmann, IngaVidal, BrendaHedström, AnnelieViklander, Maria
By organisation
Architecture and Water
Other Environmental EngineeringWater Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 3 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 9 hits
ReferencesLink to record
Permanent link

Direct link