Contaminants removal by bentonite amended slow sand filter
Earlier studies have indicated that variability in size, surface texture and charge greatly influence the contaminant removal process in granular media. Based on surface characteristics of montmorillonite, it is anticipated that small addition of this clay would increase adhesion sites for bacterial...
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| Опубліковано в: : | Химия и технология воды |
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| Дата: | 2013 |
| Автори: | , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України
2013
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/130749 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Contaminants removal by bentonite amended slow sand filter / Sudhakar M. Rao, R. Malini, A. Lydia, Young Lee // Химия и технология воды. — 2013. — Т. 35, № 1. — С. 43-53. — Бібліогр.: 19 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862710949553635328 |
|---|---|
| author | Sudhakar M. Rao Malini, R. Lydia, A. Young Lee |
| author_facet | Sudhakar M. Rao Malini, R. Lydia, A. Young Lee |
| citation_txt | Contaminants removal by bentonite amended slow sand filter / Sudhakar M. Rao, R. Malini, A. Lydia, Young Lee // Химия и технология воды. — 2013. — Т. 35, № 1. — С. 43-53. — Бібліогр.: 19 назв. — англ. |
| collection | DSpace DC |
| container_title | Химия и технология воды |
| description | Earlier studies have indicated that variability in size, surface texture and charge greatly influence the contaminant removal process in granular media. Based on surface characteristics of montmorillonite, it is anticipated that small addition of this clay would increase adhesion sites for bacterial growth and extracellular polymer production in slow sand filter and thereby enhance its contaminant removal ability. Experiments were performed by permeating groundwater conta-minated with pathogens (total coliform and E. Сoli) and inorganic contaminants through bentonite amended slow sand filter (BASSF). Surprisingly, the BASSF retained inorganic contaminants besides pathogens. Water-leach tests (pH of water leachate ranged from 2 to 9) with spent BASSF specimen indicated that the inorganic contaminants are irreversibly adsorbed to a large extent. It is considered that the combined effects of enhanced - organic matter mediated adhesion sites and increased hydraulic retention time enables the BASSF specimen to retain inorganic contaminants. It is envisaged that BASSF filters could find use in treating contaminated groundwater for potable needs at household and community level.
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| first_indexed | 2025-12-07T17:28:08Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-130749 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0204-3556 |
| language | English |
| last_indexed | 2025-12-07T17:28:08Z |
| publishDate | 2013 |
| publisher | Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України |
| record_format | dspace |
| spelling | Sudhakar M. Rao Malini, R. Lydia, A. Young Lee 2018-02-20T18:17:35Z 2018-02-20T18:17:35Z 2013 Contaminants removal by bentonite amended slow sand filter / Sudhakar M. Rao, R. Malini, A. Lydia, Young Lee // Химия и технология воды. — 2013. — Т. 35, № 1. — С. 43-53. — Бібліогр.: 19 назв. — англ. 0204-3556 https://nasplib.isofts.kiev.ua/handle/123456789/130749 Earlier studies have indicated that variability in size, surface texture and charge greatly influence the contaminant removal process in granular media. Based on surface characteristics of montmorillonite, it is anticipated that small addition of this clay would increase adhesion sites for bacterial growth and extracellular polymer production in slow sand filter and thereby enhance its contaminant removal ability. Experiments were performed by permeating groundwater conta-minated with pathogens (total coliform and E. Сoli) and inorganic contaminants through bentonite amended slow sand filter (BASSF). Surprisingly, the BASSF retained inorganic contaminants besides pathogens. Water-leach tests (pH of water leachate ranged from 2 to 9) with spent BASSF specimen indicated that the inorganic contaminants are irreversibly adsorbed to a large extent. It is considered that the combined effects of enhanced - organic matter mediated adhesion sites and increased hydraulic retention time enables the BASSF specimen to retain inorganic contaminants. It is envisaged that BASSF filters could find use in treating contaminated groundwater for potable needs at household and community level. The authors thank Korean Institute of Science & Technology, South Korea for supporting the research project "Domestic water treatment technology". en Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України Химия и технология воды Физическая химия процессов обработки воды Contaminants removal by bentonite amended slow sand filter Article published earlier |
| spellingShingle | Contaminants removal by bentonite amended slow sand filter Sudhakar M. Rao Malini, R. Lydia, A. Young Lee Физическая химия процессов обработки воды |
| title | Contaminants removal by bentonite amended slow sand filter |
| title_full | Contaminants removal by bentonite amended slow sand filter |
| title_fullStr | Contaminants removal by bentonite amended slow sand filter |
| title_full_unstemmed | Contaminants removal by bentonite amended slow sand filter |
| title_short | Contaminants removal by bentonite amended slow sand filter |
| title_sort | contaminants removal by bentonite amended slow sand filter |
| topic | Физическая химия процессов обработки воды |
| topic_facet | Физическая химия процессов обработки воды |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/130749 |
| work_keys_str_mv | AT sudhakarmrao contaminantsremovalbybentoniteamendedslowsandfilter AT malinir contaminantsremovalbybentoniteamendedslowsandfilter AT lydiaa contaminantsremovalbybentoniteamendedslowsandfilter AT younglee contaminantsremovalbybentoniteamendedslowsandfilter |