The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water
Chlorination of drinking water from natural sources results in the formation of several organic compounds as disinfection by products. The most widely studied among them is a group of compounds collectively called trihalomethanes (THMs), some of which are reported to be toxic for human consumption....
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| Format: | Article |
| Language: | English |
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An-Najah National University
2012-11-01
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| Series: | مجلة جامعة النجاح للأبحاث العلوم الطبيعية |
| Online Access: | https://journals.najah.edu/media/journals/full_texts/effects-pipe-material-and-age-formation-disinfection---products-dbp-nablus-water-network-survey-stud.pdf |
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| author | Shehdeh Jodeh Nabeel Omar Marwan Haddad Laurie McNeill |
| author_facet | Shehdeh Jodeh Nabeel Omar Marwan Haddad Laurie McNeill |
| author_sort | Shehdeh Jodeh |
| collection | DOAJ |
| description | Chlorination of drinking water from natural sources results in the formation of several organic compounds as disinfection by products. The most widely studied among them is a group of compounds collectively called trihalomethanes (THMs), some of which are reported to be toxic for human consumption. Consequently water supply authorities in some countries are forced to resort to costly corrective measures in order to reduce their levels below the maximum concentration limits (MCL) set by the environmental protection and health authorities. It is well established by now that the formation of such compounds is due to reactions between chlorine and some precursor organics originally present in raw water. In the City of Nablus which located in the northern West Bank- Palestinian Territory, a water system network serves about 177,000 people in Nablus and its surrounding localities, consist of, four wells, five springs, nine operating storage tanks,13 pump stations, distribution network consists of about 279 km of water pipes of different diameter, material and ages, The treatment process used for disinfecting drinking water is chlorination, by using sodium hypochlorite, the Unaccounted for Water (UFW) is over 30% and the supply is intermittent due to water shortages, so contaminants can intrude into the pipe network and the rooftop storage tanks and react with chlorine to form disinfection by – products (DBPs), which may cause cancer and some other diseases. In this research, samples representing Nablus water system in coordination with Nablus water supply and sanitation department were taken and analyzed for content of DBPs as THM. Results shows all total trihalomethanes (TTHM) values of field survey samples were less than PSI MCL (250 ppb) and the USEPA MCL (80 ppb), except one sample from Al Qwareen Spring-trading centre at 153 ppb, which is more than the MCL set by the USEPA. |
| format | Article |
| id | doaj-art-ed20c41219414e73b5b5b0e7f6d1941b |
| institution | Kabale University |
| issn | 1727-2114 2311-8865 |
| language | English |
| publishDate | 2012-11-01 |
| publisher | An-Najah National University |
| record_format | Article |
| series | مجلة جامعة النجاح للأبحاث العلوم الطبيعية |
| spelling | doaj-art-ed20c41219414e73b5b5b0e7f6d1941b2025-08-20T03:44:03ZengAn-Najah National Universityمجلة جامعة النجاح للأبحاث العلوم الطبيعية1727-21142311-88652012-11-01271698210.35552/anujr.a.27.1.6The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking WaterShehdeh Jodeh0Nabeel Omar1Marwan Haddad2Laurie McNeill3Department of Chemistry, Faculty of Science, An-Najah National University, P.O. Box 7, P400 Nablus, PalestineNoneNoneNoneChlorination of drinking water from natural sources results in the formation of several organic compounds as disinfection by products. The most widely studied among them is a group of compounds collectively called trihalomethanes (THMs), some of which are reported to be toxic for human consumption. Consequently water supply authorities in some countries are forced to resort to costly corrective measures in order to reduce their levels below the maximum concentration limits (MCL) set by the environmental protection and health authorities. It is well established by now that the formation of such compounds is due to reactions between chlorine and some precursor organics originally present in raw water. In the City of Nablus which located in the northern West Bank- Palestinian Territory, a water system network serves about 177,000 people in Nablus and its surrounding localities, consist of, four wells, five springs, nine operating storage tanks,13 pump stations, distribution network consists of about 279 km of water pipes of different diameter, material and ages, The treatment process used for disinfecting drinking water is chlorination, by using sodium hypochlorite, the Unaccounted for Water (UFW) is over 30% and the supply is intermittent due to water shortages, so contaminants can intrude into the pipe network and the rooftop storage tanks and react with chlorine to form disinfection by – products (DBPs), which may cause cancer and some other diseases. In this research, samples representing Nablus water system in coordination with Nablus water supply and sanitation department were taken and analyzed for content of DBPs as THM. Results shows all total trihalomethanes (TTHM) values of field survey samples were less than PSI MCL (250 ppb) and the USEPA MCL (80 ppb), except one sample from Al Qwareen Spring-trading centre at 153 ppb, which is more than the MCL set by the USEPA.https://journals.najah.edu/media/journals/full_texts/effects-pipe-material-and-age-formation-disinfection---products-dbp-nablus-water-network-survey-stud.pdf |
| spellingShingle | Shehdeh Jodeh Nabeel Omar Marwan Haddad Laurie McNeill The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water مجلة جامعة النجاح للأبحاث العلوم الطبيعية |
| title | The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water |
| title_full | The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water |
| title_fullStr | The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water |
| title_full_unstemmed | The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water |
| title_short | The Effects of Pipe Material and Age on the Formation of Disinfection by – Products (DBP) In Nablus Water Network - Survey Study of the Occurrence of Trihalomethanes in Nablus Drinking Water |
| title_sort | effects of pipe material and age on the formation of disinfection by products dbp in nablus water network survey study of the occurrence of trihalomethanes in nablus drinking water |
| url | https://journals.najah.edu/media/journals/full_texts/effects-pipe-material-and-age-formation-disinfection---products-dbp-nablus-water-network-survey-stud.pdf |
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