Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility
Objectives This study evaluated the effect of dosing yellow clay powder as a sedimentation aid when Microcystis sp. bloomed. Methods Pre-oxidation (chlorination and ozonation) treatment and coagulation/precipitation experiments of Microcystis sp. - laden source water were performed with a jar-tester...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Korean Society of Environmental Engineers
2022-11-01
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| Series: | 대한환경공학회지 |
| Subjects: | |
| Online Access: | http://www.jksee.or.kr/upload/pdf/KSEE-2022-44-11-397.pdf |
| _version_ | 1811164901049106432 |
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| author | Hyejin Lee Yujin Lee Eun Young Bae Kyoung Hyuk Jang Hoon Sik Yoom Heejong Son |
| author_facet | Hyejin Lee Yujin Lee Eun Young Bae Kyoung Hyuk Jang Hoon Sik Yoom Heejong Son |
| author_sort | Hyejin Lee |
| collection | DOAJ |
| description | Objectives This study evaluated the effect of dosing yellow clay powder as a sedimentation aid when Microcystis sp. bloomed. Methods Pre-oxidation (chlorination and ozonation) treatment and coagulation/precipitation experiments of Microcystis sp. - laden source water were performed with a jar-tester. Treatment efficiency was evaluated by analyzing the turbidity and particulate matter of the supernatant after sedimentation according to the presence or not of pre-oxidation, the concentrations of yellow clay powder, and polyamine dosing. Results and Discussion As a result of evaluating the turbidity and particulate matter of the supernatant after coagulation/sedimentation according to the dosing concentrations of yellow clay powder, the turbidity of the supernatant decreased as the dosing concentrations of yellow clay powder increased regardless of the presence or not of pre-oxidation. In particular, when pre-oxidation was not performed, both turbidity and particulate matter of the supernatant after sedimentation were significantly reduced. In addition, without pre-oxidation, when yellow clay powder (50 mg/L) and polyamine (1.0 mg/L) were dosed together, turbidity was reduced by 25% and the amount of particulate matter by 41% compared to utilizing pre-oxidation. Regarding the concentrating efficiency of sedimentation sludge, when yellow clay powder was added, concentrating efficiency increased by more than 31~38% regardless of pre-oxidation treatment compared to when yellow clay powder was not added. However, with pre-oxidation, the concentrating efficiency decreased by about 27~34% under the same yellow clay powder and polyamine dosing conditions compared to without pre-oxidation. Conclusion When yellow clay powder was added to Microcystis sp. - laden source water, turbidity and particulate matter were effectively reduced after coagulation/sedimentation regardless of the presence or not of pre-oxidation. In particular, when pre-oxidation was not performed, the turbidity and particulate matter after coagulation/sedimentation were significantly reduced as compared with utilizing pre-oxidation, and using yellow clay powder together with a polyamine reduced turbidity and particulate matter the most. In addition, the sludge concentration of Microcystis sp. - containing sludge with low concentrating efficiency was increased by dosing yellow clay powder. |
| first_indexed | 2024-04-10T15:28:42Z |
| format | Article |
| id | doaj.art-0a51098eb30b4d788dc3b18f0e91ab4d |
| institution | Directory Open Access Journal |
| issn | 1225-5025 2383-7810 |
| language | English |
| last_indexed | 2024-04-10T15:28:42Z |
| publishDate | 2022-11-01 |
| publisher | Korean Society of Environmental Engineers |
| record_format | Article |
| series | 대한환경공학회지 |
| spelling | doaj.art-0a51098eb30b4d788dc3b18f0e91ab4d2023-02-14T07:13:25ZengKorean Society of Environmental Engineers대한환경공학회지1225-50252383-78102022-11-01441139740510.4491/KSEE.2022.44.11.3974411Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment FacilityHyejin Lee0Yujin Lee1Eun Young Bae2Kyoung Hyuk Jang3Hoon Sik Yoom4Heejong Son5Water Quality Institute, Water Authority, Busan, Republic of KoreaWater Quality Institute, Water Authority, Busan, Republic of KoreaWater Authority, Busan, Republic of KoreaWater Quality Institute, Water Authority, Busan, Republic of KoreaWater Quality Institute, Water Authority, Busan, Republic of KoreaWater Quality Institute, Water Authority, Busan, Republic of KoreaObjectives This study evaluated the effect of dosing yellow clay powder as a sedimentation aid when Microcystis sp. bloomed. Methods Pre-oxidation (chlorination and ozonation) treatment and coagulation/precipitation experiments of Microcystis sp. - laden source water were performed with a jar-tester. Treatment efficiency was evaluated by analyzing the turbidity and particulate matter of the supernatant after sedimentation according to the presence or not of pre-oxidation, the concentrations of yellow clay powder, and polyamine dosing. Results and Discussion As a result of evaluating the turbidity and particulate matter of the supernatant after coagulation/sedimentation according to the dosing concentrations of yellow clay powder, the turbidity of the supernatant decreased as the dosing concentrations of yellow clay powder increased regardless of the presence or not of pre-oxidation. In particular, when pre-oxidation was not performed, both turbidity and particulate matter of the supernatant after sedimentation were significantly reduced. In addition, without pre-oxidation, when yellow clay powder (50 mg/L) and polyamine (1.0 mg/L) were dosed together, turbidity was reduced by 25% and the amount of particulate matter by 41% compared to utilizing pre-oxidation. Regarding the concentrating efficiency of sedimentation sludge, when yellow clay powder was added, concentrating efficiency increased by more than 31~38% regardless of pre-oxidation treatment compared to when yellow clay powder was not added. However, with pre-oxidation, the concentrating efficiency decreased by about 27~34% under the same yellow clay powder and polyamine dosing conditions compared to without pre-oxidation. Conclusion When yellow clay powder was added to Microcystis sp. - laden source water, turbidity and particulate matter were effectively reduced after coagulation/sedimentation regardless of the presence or not of pre-oxidation. In particular, when pre-oxidation was not performed, the turbidity and particulate matter after coagulation/sedimentation were significantly reduced as compared with utilizing pre-oxidation, and using yellow clay powder together with a polyamine reduced turbidity and particulate matter the most. In addition, the sludge concentration of Microcystis sp. - containing sludge with low concentrating efficiency was increased by dosing yellow clay powder.http://www.jksee.or.kr/upload/pdf/KSEE-2022-44-11-397.pdfcyanobacteria sp.yellow clay powdersedimentationdrinking water treatment process |
| spellingShingle | Hyejin Lee Yujin Lee Eun Young Bae Kyoung Hyuk Jang Hoon Sik Yoom Heejong Son Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility 대한환경공학회지 cyanobacteria sp. yellow clay powder sedimentation drinking water treatment process |
| title | Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility |
| title_full | Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility |
| title_fullStr | Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility |
| title_full_unstemmed | Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility |
| title_short | Application of Yellow Clay Powder for Efficient Treatment of Cyanobacterium sp. - Laden Source Water in Drinking Water Treatment Facility |
| title_sort | application of yellow clay powder for efficient treatment of cyanobacterium sp laden source water in drinking water treatment facility |
| topic | cyanobacteria sp. yellow clay powder sedimentation drinking water treatment process |
| url | http://www.jksee.or.kr/upload/pdf/KSEE-2022-44-11-397.pdf |
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