Carbonaceous and nitrogenous disinfection by-product formation from algal organic matter

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dc.contributor.authorGoslan, Emma Harriet
dc.contributor.authorSeigle, Céline
dc.contributor.authorPurcell, Diane
dc.contributor.authorHenderson, Rita Kay
dc.contributor.authorParsons, Simon A.
dc.contributor.authorJefferson, Bruce
dc.contributor.authorJudd, Simon J.
dc.date.accessioned2017-01-18T09:34:13Z
dc.date.available2017-01-18T09:34:13Z
dc.date.issued2016-12-10
dc.description.abstractSeasonal algal blooms in drinking water sources release intracellular and extracellular algal organic matter (AOM) in significant concentrations into the water. This organic matter provides precursors for disinfection by-products (DBPs) formed when the water is subsequently chlorinated at the final disinfection stage of the potable water treatment process. This paper presents results of AOM characterisation from five algal species (three cyanobacteria, one diatom and one green) alongside the measurement of the DBP formation potential from the AOM of six algal species (an additional diatom). The character was explored in terms of hydrophilicity, charge and protein and carbohydrate content. 18 DBPs were measured following chlorination of the AOM samples: the four trihalomethanes (THMs), nine haloacetic acids (HAAs), four haloacetonitriles (HANs) and one halonitromethane (HNM). The AOM was found to be mainly hydrophilic (52 and 81%) in nature. Yields of up to 92.4 μg mg−1 C carbonaceous DBPs were measured, with few consistent trends between DBP formation propensity and either the specific ultraviolet absorbance (SUVA) or the chemical characteristics. The AOM from diatomaceous algae formed significant amounts of nitrogenous DBPs (up to 1.7 μg mg−1 C). The weak trends in DBPFP may be attributable to the hydrophilic nature of AOM, which also makes it more challenging to remove by conventional water treatment processes.en_UK
dc.identifier.citationGoslan EH, Seigle C, Purcell D, Henderson R, Parsons SA, Jefferson B, Judd SJ, Carbonaceous and nitrogenous disinfection by-product formation from algal organic matter, Chemosphere, Volume 170, March 2017, Pages 1–9en_UK
dc.identifier.cris16264157
dc.identifier.issn0045-6535
dc.identifier.urihttp://dx.doi.org/10.1016/j.chemosphere.2016.11.148
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11293
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAlgaeen_UK
dc.subjectTrihalomethanesen_UK
dc.subjectHaloacetic acidsen_UK
dc.subjectHaloacetonitrilesen_UK
dc.subjectCharacterisationen_UK
dc.titleCarbonaceous and nitrogenous disinfection by-product formation from algal organic matteren_UK
dc.typeArticleen_UK

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