Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation
Polymerization rates of silica at various concentrations and pHs have been studied via nephelometry. The ability and potency of ultrasonic radiation on the coagulation process in aqueous samples with and without silica colloidal particles have been extensively investigated. Factors affecting the rat...
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
1992-12-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
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| Online Access: | http://www.ijcce.ac.ir/article_10953_d41d8cd98f00b204e9800998ecf8427e.pdf |
| _version_ | 1818524497111678976 |
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| author | Nezameddin Daneshvar Hossein Salavati |
| author_facet | Nezameddin Daneshvar Hossein Salavati |
| author_sort | Nezameddin Daneshvar |
| collection | DOAJ |
| description | Polymerization rates of silica at various concentrations and pHs have been studied via nephelometry. The ability and potency of ultrasonic radiation on the coagulation process in aqueous samples with and without silica colloidal particles have been extensively investigated. Factors affecting the rate and filtration volume such as silica concentration, time of radiation, temperature, and frequency of radiation have also been studied. The results indicate that ultrasonic radiation has two folded effect: on the one hand it breaks down the large flocs and on the other it results in the flocculation of small particles. The above mentioned effects lead to a reduced uniformity coefficient for the filter beds made of such coagulated particles. |
| first_indexed | 2024-12-11T05:57:51Z |
| format | Article |
| id | doaj.art-dbcc6c374d8041a4ab0d444333b4a1e3 |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-11T05:57:51Z |
| publishDate | 1992-12-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-dbcc6c374d8041a4ab0d444333b4a1e32022-12-22T01:18:37ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99861992-12-011121710953Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and SedimentationNezameddin Daneshvar0Hossein Salavati1Faculty of Chemistry, Tabriz University, Tabriz, I.R. IRANFaculty of Chemistry, Tabriz University, Tabriz, I.R. IRANPolymerization rates of silica at various concentrations and pHs have been studied via nephelometry. The ability and potency of ultrasonic radiation on the coagulation process in aqueous samples with and without silica colloidal particles have been extensively investigated. Factors affecting the rate and filtration volume such as silica concentration, time of radiation, temperature, and frequency of radiation have also been studied. The results indicate that ultrasonic radiation has two folded effect: on the one hand it breaks down the large flocs and on the other it results in the flocculation of small particles. The above mentioned effects lead to a reduced uniformity coefficient for the filter beds made of such coagulated particles.http://www.ijcce.ac.ir/article_10953_d41d8cd98f00b204e9800998ecf8427e.pdfsilica polymerizationsilica colloidal particlesultrasonic wavescoagulationsedimentationflocculationfiltration ratenephelometry |
| spellingShingle | Nezameddin Daneshvar Hossein Salavati Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation Iranian Journal of Chemistry & Chemical Engineering silica polymerization silica colloidal particles ultrasonic waves coagulation sedimentation flocculation filtration rate nephelometry |
| title | Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation |
| title_full | Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation |
| title_fullStr | Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation |
| title_full_unstemmed | Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation |
| title_short | Polymerization of Silica in Water-Effect of Ultrasonic Waves on Coagulation and Sedimentation |
| title_sort | polymerization of silica in water effect of ultrasonic waves on coagulation and sedimentation |
| topic | silica polymerization silica colloidal particles ultrasonic waves coagulation sedimentation flocculation filtration rate nephelometry |
| url | http://www.ijcce.ac.ir/article_10953_d41d8cd98f00b204e9800998ecf8427e.pdf |
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