Biodegradability of organic matter associated with sewer sediments during first flush.

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dc.contributor.authorSakrabani, Ruben
dc.contributor.authorVollertsen, Jes
dc.contributor.authorAshley, Richard M.
dc.contributor.authorHvitved-Jacobsen, Thorkild
dc.date.accessioned2009-03-10T15:32:34Z
dc.date.available2009-03-10T15:32:34Z
dc.date.issued2009-04-01
dc.description.abstractThe high pollution load in wastewater at the beginning of a rain event is commonly known to originate from the erosion of sewer sediments due to the increased flow rate under storm weather conditions. It is essential to characterize the biodegradability of organic matter during a storm event in order to quantify the effect it can have further downstream to the receiving water via discharges from Combined Sewer Overflow (CSO). The approach is to characterize the pollutograph during first flush. The pollutograph shows the variation in COD and TSS during a first flush event. These parameters measure the quantity of organic matter present. However these parameters do not indicate detailed information on the biodegradability of the organic matter. Such detailed knowledge can be obtained by dividing the total COD into fractions with different microbial properties. To do so oxygen uptake rate (OUR) measurements on batches of wastewater have shown itself to be a versatile technique. Together with a conceptual understanding of the microbial transformation taking place, OUR measurements lead to the desired fractionation of the COD. OUR results indicated that the highest biodegradability is associated with the initial part of a storm event. The information on physical and biological processes in the sewer can be used to better manage sediment in sewers which can otherwise result in depletion of dissolved oxygen in receiving waters via discharges from CSOs.en_UK
dc.identifier.citationRuben Sakrabani, Jes Vollertsen, Richard M. Ashley, Thorkild Hvitved-Jacobsen, Biodegradability of organic matter associated with sewer sediments during first flush, Science of The Total Environment, Volume 407, Issue 8, 1 April 2009, Pages 2989-2995en_UK
dc.identifier.issn0048-9697
dc.identifier.urihttp://dx.doi.org/10.1016/j.scitotenv.2009.01.008
dc.identifier.urihttp://hdl.handle.net/1826/3248
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.subjectBiodegradabilityen_UK
dc.subjectFirst flushesen_UK
dc.subjectOrganic matteren_UK
dc.subjectWatercourseen_UK
dc.subjectOxygen utilisation rate (OUR)en_UK
dc.subjectCombined Sewer Overflow (CSO)en_UK
dc.titleBiodegradability of organic matter associated with sewer sediments during first flush.en_UK
dc.typePostprinten_UK

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