Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater
Abstract Depth filtration is a conventional concept for the solid–liquid separation process through granular media, and this technique is very useful in removal of large-sized particle. However, in the case of microparticles smaller than the pore space it does not function well. Accordingly, an effe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-11-01
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| Series: | Applied Water Science |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s13201-018-0878-4 |
| _version_ | 1818339956579368960 |
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| author | A. K. M. Ashadullah Naoyuki Kishimoto |
| author_facet | A. K. M. Ashadullah Naoyuki Kishimoto |
| author_sort | A. K. M. Ashadullah |
| collection | DOAJ |
| description | Abstract Depth filtration is a conventional concept for the solid–liquid separation process through granular media, and this technique is very useful in removal of large-sized particle. However, in the case of microparticles smaller than the pore space it does not function well. Accordingly, an effective small particle removal technique is desired. In this research, a carbon fiber felt was introduced as filter media and ± 1.0 V terminal voltage was applied for activating the media to enhance in adsorbing as well as desorbing the fine particles in the filtration and back-washing. Kaolin particles in the range of 0.1–4.0 µm were used as a model of microparticles. The complete kaolin particle removal was observed in pure water, and it decreased to around 50% in the anionic surfactant-contaminated wastewater at the hydraulic loading of 283 L/m2/min. On the contrary, at the back-washing hydraulic loading of 1274 L/m2/min, the kaolin particle washout removal efficiency was found to be around 73% in pure water and it dramatically decreased and found within the range of 5–50% when the kaolin was in contact with anionic surfactant and wastewater. Although the kaolin particle washout removal rate was observed very low in wastewater, this technique would be very useful in enhancing the refreshment of the filter media for extending the production time of the filter. |
| first_indexed | 2024-12-13T15:35:15Z |
| format | Article |
| id | doaj.art-b53c92c99bba471497c3ae73fadb75c2 |
| institution | Directory Open Access Journal |
| issn | 2190-5487 2190-5495 |
| language | English |
| last_indexed | 2024-12-13T15:35:15Z |
| publishDate | 2018-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Applied Water Science |
| spelling | doaj.art-b53c92c99bba471497c3ae73fadb75c22022-12-21T23:40:04ZengSpringerOpenApplied Water Science2190-54872190-54952018-11-018811510.1007/s13201-018-0878-4Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewaterA. K. M. Ashadullah0Naoyuki Kishimoto1Department of Environmental Solution Technology, Graduate School of Science and Technology, Ryukoku UniversityDepartment of Environmental Solution Technology, Faculty of Science and Technology, Ryukoku UniversityAbstract Depth filtration is a conventional concept for the solid–liquid separation process through granular media, and this technique is very useful in removal of large-sized particle. However, in the case of microparticles smaller than the pore space it does not function well. Accordingly, an effective small particle removal technique is desired. In this research, a carbon fiber felt was introduced as filter media and ± 1.0 V terminal voltage was applied for activating the media to enhance in adsorbing as well as desorbing the fine particles in the filtration and back-washing. Kaolin particles in the range of 0.1–4.0 µm were used as a model of microparticles. The complete kaolin particle removal was observed in pure water, and it decreased to around 50% in the anionic surfactant-contaminated wastewater at the hydraulic loading of 283 L/m2/min. On the contrary, at the back-washing hydraulic loading of 1274 L/m2/min, the kaolin particle washout removal efficiency was found to be around 73% in pure water and it dramatically decreased and found within the range of 5–50% when the kaolin was in contact with anionic surfactant and wastewater. Although the kaolin particle washout removal rate was observed very low in wastewater, this technique would be very useful in enhancing the refreshment of the filter media for extending the production time of the filter.http://link.springer.com/article/10.1007/s13201-018-0878-4Carbon fiber feltDepth filtrationKaolinMicroparticleTerminal voltage |
| spellingShingle | A. K. M. Ashadullah Naoyuki Kishimoto Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater Applied Water Science Carbon fiber felt Depth filtration Kaolin Microparticle Terminal voltage |
| title | Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater |
| title_full | Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater |
| title_fullStr | Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater |
| title_full_unstemmed | Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater |
| title_short | Effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater |
| title_sort | effectiveness of active control of surface charge of filter media on separation of microparticles from contaminated wastewater |
| topic | Carbon fiber felt Depth filtration Kaolin Microparticle Terminal voltage |
| url | http://link.springer.com/article/10.1007/s13201-018-0878-4 |
| work_keys_str_mv | AT akmashadullah effectivenessofactivecontrolofsurfacechargeoffiltermediaonseparationofmicroparticlesfromcontaminatedwastewater AT naoyukikishimoto effectivenessofactivecontrolofsurfacechargeoffiltermediaonseparationofmicroparticlesfromcontaminatedwastewater |