Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon
Humic substances (HSs) are precursors for the formation of hazardous disinfection by-products (DBPs) during chlorination of water. Various surrogate parameters have been used to investigate the generation of DBPs by HS precursors and the removal of these precursors by activated carbon treatment. Dis...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | |
| التنسيق: | article |
| منشور في: |
2015
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://hdl.handle.net/11073/8509 |
| الوسوم: |
إضافة وسم
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| _version_ | 1864513432477237248 |
|---|---|
| author | Wells, Martha J. M. |
| author2 | Abouleish, Mohamed |
| author2_role | author |
| author_facet | Wells, Martha J. M. Abouleish, Mohamed |
| author_role | author |
| dc.creator.none.fl_str_mv | Wells, Martha J. M. Abouleish, Mohamed |
| dc.date.none.fl_str_mv | 2015-04 2016-10-13T07:27:18Z 2016-10-13T07:27:18Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Abouleish, Mohamed Yehia, and M. J. M. Wells. "Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon." Science of the Total Environment 521, no. 1 (2015): 293 0048-9697 http://hdl.handle.net/11073/8509 10.1016/j.scitotenv.2015.03.090 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.relation.none.fl_str_mv | Science of the Total Environment http://dx.doi.org/10.1016/j.scitotenv.2015.03.090 |
| dc.subject.none.fl_str_mv | Disinfection by-products Drinking water treatment Chlorination Isotherms Factorial analysis Dissolved organic carbon |
| dc.title.none.fl_str_mv | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Humic substances (HSs) are precursors for the formation of hazardous disinfection by-products (DBPs) during chlorination of water. Various surrogate parameters have been used to investigate the generation of DBPs by HS precursors and the removal of these precursors by activated carbon treatment. Dissolved organic carbon (DOC)- and ultraviolet absorbance (UVA254)-based isotherms are commonly reported and presumed to be good predictors of the trihalomethane formation potential (THMFP). However, THMFP-based isotherms are rarely published such that the three types of parameters have not been compared directly. Batch equilibrium experiments on activated carbon were used to generate constant-initial-concentration sorption isotherms for well-characterized samples obtained from the International Humic Substances Society (IHSS). HSs representing type (fulvic acid [FA], humic acid [HA]), origin (aquatic, terrestrial), and geographical source (Nordic, Suwannee, Peat, Soil) were examined at pH 6 and pH 9. THMFP-based isotherms were generated and compared to determine if DOC- and UVA254-based isotherms were good predictors of the THMFP. The sorption process depended on the composition of the HSs and the chemical nature of the activated carbon, both of which were influenced by pH. Activated carbon removal of THM-precursors was pH- and HS-dependent. In some instances, the THMFP existed after UVA254 was depleted. |
| format | article |
| id | aus_1a2d082c484050665e40b4270c038ce6 |
| identifier_str_mv | Abouleish, Mohamed Yehia, and M. J. M. Wells. "Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon." Science of the Total Environment 521, no. 1 (2015): 293 0048-9697 10.1016/j.scitotenv.2015.03.090 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/8509 |
| publishDate | 2015 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbonWells, Martha J. M.Abouleish, MohamedDisinfection by-productsDrinking water treatmentChlorinationIsothermsFactorial analysisDissolved organic carbonHumic substances (HSs) are precursors for the formation of hazardous disinfection by-products (DBPs) during chlorination of water. Various surrogate parameters have been used to investigate the generation of DBPs by HS precursors and the removal of these precursors by activated carbon treatment. Dissolved organic carbon (DOC)- and ultraviolet absorbance (UVA254)-based isotherms are commonly reported and presumed to be good predictors of the trihalomethane formation potential (THMFP). However, THMFP-based isotherms are rarely published such that the three types of parameters have not been compared directly. Batch equilibrium experiments on activated carbon were used to generate constant-initial-concentration sorption isotherms for well-characterized samples obtained from the International Humic Substances Society (IHSS). HSs representing type (fulvic acid [FA], humic acid [HA]), origin (aquatic, terrestrial), and geographical source (Nordic, Suwannee, Peat, Soil) were examined at pH 6 and pH 9. THMFP-based isotherms were generated and compared to determine if DOC- and UVA254-based isotherms were good predictors of the THMFP. The sorption process depended on the composition of the HSs and the chemical nature of the activated carbon, both of which were influenced by pH. Activated carbon removal of THM-precursors was pH- and HS-dependent. In some instances, the THMFP existed after UVA254 was depleted.Elsevier2016-10-13T07:27:18Z2016-10-13T07:27:18Z2015-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfAbouleish, Mohamed Yehia, and M. J. M. Wells. "Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon." Science of the Total Environment 521, no. 1 (2015): 2930048-9697http://hdl.handle.net/11073/850910.1016/j.scitotenv.2015.03.090en_USScience of the Total Environmenthttp://dx.doi.org/10.1016/j.scitotenv.2015.03.090oai:repository.aus.edu:11073/85092024-08-22T12:15:37Z |
| spellingShingle | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon Wells, Martha J. M. Disinfection by-products Drinking water treatment Chlorination Isotherms Factorial analysis Dissolved organic carbon |
| status_str | publishedVersion |
| title | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| title_full | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| title_fullStr | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| title_full_unstemmed | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| title_short | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| title_sort | Trihalomethane formation potential of aquatic and terrestrial fulvic and humic acids: Sorption on activated carbon |
| topic | Disinfection by-products Drinking water treatment Chlorination Isotherms Factorial analysis Dissolved organic carbon |
| url | http://hdl.handle.net/11073/8509 |