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Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment

Emma Brooks, Christopher Freeman, Rachel Gough, Peter Holliman Orcid Logo

Science of The Total Environment, Volume: 537, Pages: 203 - 212

Swansea University Author: Peter Holliman Orcid Logo

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DOI (Published version): 10.1016/j.scitotenv.2015.08.017

Abstract

Rising dissolved organic carbon (DOC) concentrations in many upland UK catchments represents a challenge for drinking water companies, in particular due to the role of DOC as a precursor in the formation of trihalomethanes (THMs). Whereas traditionally, the response of drinking water companies has b...

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Published in: Science of The Total Environment
ISSN: 0048-9697
Published: 2015
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URI: https://cronfa.swan.ac.uk/Record/cronfa37038
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first_indexed 2017-11-24T15:39:19Z
last_indexed 2018-02-09T05:30:02Z
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spelling 2017-11-24T11:35:27.9469497 v2 37038 2017-11-24 Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment c8f52394d776279c9c690dc26066ddf9 0000-0002-9911-8513 Peter Holliman Peter Holliman true false 2017-11-24 MTLS Rising dissolved organic carbon (DOC) concentrations in many upland UK catchments represents a challenge for drinking water companies, in particular due to the role of DOC as a precursor in the formation of trihalomethanes (THMs). Whereas traditionally, the response of drinking water companies has been focussed on treatment processes, increasingly, efforts have been made to better understanding the role of land use and catchment processes in affecting drinking water quality. In this study, water quality, including DOC and THM formation potential (THMFP) was assessed between the water source and finished drinking water at an upland and a lowland catchment. Surprisingly, the lowland catchment showed much higher reservoir DOC concentrations apparently due to the influence of a fen within the catchment from where a major reservoir inflow stream originated. Seasonal variations in water quality were observed, driving changes in THMFP. However, the reservoirs in both catchments appeared to dampen these temporal fluctuations. Treatment process applied in the 2 catchments were adapted to reservoir water quality with much higher DOC and THMFP removal rates observed at the lowland water treatment works where coagulation–flocculation was applied. However, selectivity during this DOC removal stage also appeared to increase the proportion of brominated THMs produced. Journal Article Science of The Total Environment 537 203 212 0048-9697 Dissolved organic carbon, Drinking water, Catchment, Trihalomethanes 15 12 2015 2015-12-15 10.1016/j.scitotenv.2015.08.017 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2017-11-24T11:35:27.9469497 2017-11-24T11:30:29.3208171 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Emma Brooks 1 Christopher Freeman 2 Rachel Gough 3 Peter Holliman 0000-0002-9911-8513 4
title Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
spellingShingle Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
Peter Holliman
title_short Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
title_full Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
title_fullStr Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
title_full_unstemmed Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
title_sort Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
author_id_str_mv c8f52394d776279c9c690dc26066ddf9
author_id_fullname_str_mv c8f52394d776279c9c690dc26066ddf9_***_Peter Holliman
author Peter Holliman
author2 Emma Brooks
Christopher Freeman
Rachel Gough
Peter Holliman
format Journal article
container_title Science of The Total Environment
container_volume 537
container_start_page 203
publishDate 2015
institution Swansea University
issn 0048-9697
doi_str_mv 10.1016/j.scitotenv.2015.08.017
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 0
active_str 0
description Rising dissolved organic carbon (DOC) concentrations in many upland UK catchments represents a challenge for drinking water companies, in particular due to the role of DOC as a precursor in the formation of trihalomethanes (THMs). Whereas traditionally, the response of drinking water companies has been focussed on treatment processes, increasingly, efforts have been made to better understanding the role of land use and catchment processes in affecting drinking water quality. In this study, water quality, including DOC and THM formation potential (THMFP) was assessed between the water source and finished drinking water at an upland and a lowland catchment. Surprisingly, the lowland catchment showed much higher reservoir DOC concentrations apparently due to the influence of a fen within the catchment from where a major reservoir inflow stream originated. Seasonal variations in water quality were observed, driving changes in THMFP. However, the reservoirs in both catchments appeared to dampen these temporal fluctuations. Treatment process applied in the 2 catchments were adapted to reservoir water quality with much higher DOC and THMFP removal rates observed at the lowland water treatment works where coagulation–flocculation was applied. However, selectivity during this DOC removal stage also appeared to increase the proportion of brominated THMs produced.
published_date 2015-12-15T03:46:32Z
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score 11.014358

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