Wastewater characterisation by combining size fractionation, chemical composition and biodegradability

Show simple item record

dc.contributor.author Ravndal, Kristin T.
dc.contributor.author Opsahl, Eystein
dc.contributor.author Bagi, Andrea
dc.contributor.author Kommedal, Roald
dc.date.accessioned 2018-01-19T10:35:39Z
dc.date.available 2018-01-19T10:35:39Z
dc.date.issued 2017-12-18
dc.identifier.citation Ravndal K, Opsahl E, Bagi A, Kommedal R, Wastewater characterisation by combining size fractionation, chemical composition and biodegradability, Water Research, Volume 131, 15 March 2018, pp. 151-160 en_UK
dc.identifier.issn 0043-1354
dc.identifier.uri http://doi.org/10.1016/j.watres.2017.12.034
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/12909
dc.description.abstract The potential for resource recovery from wastewater can be evaluated based on a detailed characterisation of wastewater. In this paper, results from fractionation and characterisation of two distinct wastewaters are reported. Using tangential flow filtration, the wastewater was fractionated into 10 size fractions ranging from 1 kDa to 1 mm, wherein the chemical composition and biodegradability were determined. Carbohydrates were dominant in particulate size fractions larger than 100 μm, indicating a potential of cellulose recovery from these fractions. While the particulate size fractions between 0.65 and 100 μm show a potential as a source for biofuel production due to an abundance of saturated C16 and C18 lipids. Both wastewaters were dominated by particulate (>0.65 μm), and oligo- and monomeric (<1 kDa) COD. Polymeric (1–1000 kDa) and colloidal (1000 kDa-0.65 μm) fractions had a low COD content, expected due to degradation in the sewer system upstream of the wastewater treatment plant. Biodegradation rates of particulate fractions increase with decreasing size. However, this was not seen in polymeric fractions where degradation rate was governed by chemical composition. Analytical validation of molecular weight and particle size distribution showed below filter cut-off retention of particles and polymers close to nominal cut-off, shifting the actual size distribution. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Wastewater fractionation en_UK
dc.subject Wastewater characterisation en_UK
dc.subject Resource recovery en_UK
dc.subject Biodegradability en_UK
dc.title Wastewater characterisation by combining size fractionation, chemical composition and biodegradability en_UK
dc.type Article en_UK

Files in this item

The following license files are associated with this item:

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International

Search CERES


My Account