Regularities of rapid filter backwash water clarification in reagent-free mode
Discharge of rinsing water from fast filters into surface water bodies as a way of their disposal is unacceptable for environmental reasons, and in some countries it is prohibited by law. Research by Russian and foreign scientists is aimed at studying the schemes for returning wash water to the main...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Peter the Great St. Petersburg Polytechnic University
2022-05-01
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| Series: | Magazine of Civil Engineering |
| Subjects: | |
| Online Access: | http://engstroy.spbstu.ru/article/2022.111.07/ |
| _version_ | 1811248114111086592 |
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| author | Butko Denis Volodina Marina |
| author_facet | Butko Denis Volodina Marina |
| author_sort | Butko Denis |
| collection | DOAJ |
| description | Discharge of rinsing water from fast filters into surface water bodies as a way of their disposal is unacceptable for environmental reasons, and in some countries it is prohibited by law. Research by Russian and foreign scientists is aimed at studying the schemes for returning wash water to the main stream using reagent methods of clarification, ultrafiltration or filtration on ceramic filters. In this paper, the processes of removing suspended solids from rinsing waters by means of reagent-free clarification under static conditions of sedimentation facilities are considered. In this case, the treated water was exposed to mixing with Camp’s criterion obtained as a result of the analysis of the modes of movement in pipelines from the fast filter to the settling facility for the treatment of rinse water, as well as under conditions of additional mixing inside the treatment facilities either by stirrers or by aeroflocculation. Based on the analysis of the results of water clarification under the conditions of reagent-free sedimentation with stirring, mathematical dependences of the clarification effect on the Camp’s criterion, water temperature, initial content of suspended solids and clarification time were obtained. |
| first_indexed | 2024-04-12T15:21:19Z |
| format | Article |
| id | doaj.art-138ef9dc6aed4f4a9a85700e5b8babc4 |
| institution | Directory Open Access Journal |
| issn | 2712-8172 |
| language | English |
| last_indexed | 2024-04-12T15:21:19Z |
| publishDate | 2022-05-01 |
| publisher | Peter the Great St. Petersburg Polytechnic University |
| record_format | Article |
| series | Magazine of Civil Engineering |
| spelling | doaj.art-138ef9dc6aed4f4a9a85700e5b8babc42022-12-22T03:27:24ZengPeter the Great St. Petersburg Polytechnic UniversityMagazine of Civil Engineering2712-81722022-05-011110310.34910/MCE.111.720714726Regularities of rapid filter backwash water clarification in reagent-free modeButko Denis0https://orcid.org/0000-0002-3792-7198Volodina Marina1https://orcid.org/0000-0002-3853-2796Don State Technical UniversityDon State Technical UniversityDischarge of rinsing water from fast filters into surface water bodies as a way of their disposal is unacceptable for environmental reasons, and in some countries it is prohibited by law. Research by Russian and foreign scientists is aimed at studying the schemes for returning wash water to the main stream using reagent methods of clarification, ultrafiltration or filtration on ceramic filters. In this paper, the processes of removing suspended solids from rinsing waters by means of reagent-free clarification under static conditions of sedimentation facilities are considered. In this case, the treated water was exposed to mixing with Camp’s criterion obtained as a result of the analysis of the modes of movement in pipelines from the fast filter to the settling facility for the treatment of rinse water, as well as under conditions of additional mixing inside the treatment facilities either by stirrers or by aeroflocculation. Based on the analysis of the results of water clarification under the conditions of reagent-free sedimentation with stirring, mathematical dependences of the clarification effect on the Camp’s criterion, water temperature, initial content of suspended solids and clarification time were obtained.http://engstroy.spbstu.ru/article/2022.111.07/spent filter backwash waterprecipitationmixingtreated waterwater recyclingcoagulation |
| spellingShingle | Butko Denis Volodina Marina Regularities of rapid filter backwash water clarification in reagent-free mode Magazine of Civil Engineering spent filter backwash water precipitation mixing treated water water recycling coagulation |
| title | Regularities of rapid filter backwash water clarification in reagent-free mode |
| title_full | Regularities of rapid filter backwash water clarification in reagent-free mode |
| title_fullStr | Regularities of rapid filter backwash water clarification in reagent-free mode |
| title_full_unstemmed | Regularities of rapid filter backwash water clarification in reagent-free mode |
| title_short | Regularities of rapid filter backwash water clarification in reagent-free mode |
| title_sort | regularities of rapid filter backwash water clarification in reagent free mode |
| topic | spent filter backwash water precipitation mixing treated water water recycling coagulation |
| url | http://engstroy.spbstu.ru/article/2022.111.07/ |
| work_keys_str_mv | AT butkodenis regularitiesofrapidfilterbackwashwaterclarificationinreagentfreemode AT volodinamarina regularitiesofrapidfilterbackwashwaterclarificationinreagentfreemode |