Drinking water: The problem of chlorinous odours
Chlorinous off-flavours in drinking water are a leading cause of complaints to Australian water utilities and other utilities worldwide. The occurrence and causes of chlorinous odours in drinking water were investigated with the use of an odour panel, trained using a modified flavour profile analysi...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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IWA Publishing
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/3252 |
| _version_ | 1848744180776435712 |
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| author | McDonald, Suzanne Joll, Cynthia Lethorn, A. Loi, Clara Heitz, Anna |
| author_facet | McDonald, Suzanne Joll, Cynthia Lethorn, A. Loi, Clara Heitz, Anna |
| author_sort | McDonald, Suzanne |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Chlorinous off-flavours in drinking water are a leading cause of complaints to Australian water utilities and other utilities worldwide. The occurrence and causes of chlorinous odours in drinking water were investigated with the use of an odour panel, trained using a modified flavour profile analysis technique. A new system for classifying water types according to the causes of chlorinous odours was developed in order to enable improved management strategies for the reduction of these off-flavours. Waters of ‘Type 1’ exhibit a chlorinous odour only when the free chlorine equivalent concentration is equal to or above the odour threshold concentration (OTC) for free chlorine. Waters exhibiting a chlorinous odour both above and below the OTC of free chlorine are designated ‘Type 2’. ‘Type 3’ waters are those in which the possible presence of a chlorinous odour is masked by another odour. Although causative compounds of the chlorinous off-flavours were not determined, bromine was proposed to play an important role in distribution systems where source waters have high concentrations of bromide that may not be removed by the available treatment processes. Management strategies for improvements in aesthetic water quality for each water type are proposed. |
| first_indexed | 2025-11-14T05:57:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-3252 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:57:22Z |
| publishDate | 2013 |
| publisher | IWA Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-32522019-02-19T05:34:53Z Drinking water: The problem of chlorinous odours McDonald, Suzanne Joll, Cynthia Lethorn, A. Loi, Clara Heitz, Anna chlorine water treatment off-flavours bromine drinking water natural organic matter Chlorinous off-flavours in drinking water are a leading cause of complaints to Australian water utilities and other utilities worldwide. The occurrence and causes of chlorinous odours in drinking water were investigated with the use of an odour panel, trained using a modified flavour profile analysis technique. A new system for classifying water types according to the causes of chlorinous odours was developed in order to enable improved management strategies for the reduction of these off-flavours. Waters of ‘Type 1’ exhibit a chlorinous odour only when the free chlorine equivalent concentration is equal to or above the odour threshold concentration (OTC) for free chlorine. Waters exhibiting a chlorinous odour both above and below the OTC of free chlorine are designated ‘Type 2’. ‘Type 3’ waters are those in which the possible presence of a chlorinous odour is masked by another odour. Although causative compounds of the chlorinous off-flavours were not determined, bromine was proposed to play an important role in distribution systems where source waters have high concentrations of bromide that may not be removed by the available treatment processes. Management strategies for improvements in aesthetic water quality for each water type are proposed. 2013 Journal Article http://hdl.handle.net/20.500.11937/3252 10.2166/aqua.2013.087 IWA Publishing fulltext |
| spellingShingle | chlorine water treatment off-flavours bromine drinking water natural organic matter McDonald, Suzanne Joll, Cynthia Lethorn, A. Loi, Clara Heitz, Anna Drinking water: The problem of chlorinous odours |
| title | Drinking water: The problem of chlorinous odours |
| title_full | Drinking water: The problem of chlorinous odours |
| title_fullStr | Drinking water: The problem of chlorinous odours |
| title_full_unstemmed | Drinking water: The problem of chlorinous odours |
| title_short | Drinking water: The problem of chlorinous odours |
| title_sort | drinking water: the problem of chlorinous odours |
| topic | chlorine water treatment off-flavours bromine drinking water natural organic matter |
| url | http://hdl.handle.net/20.500.11937/3252 |