Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate.
Landfilling for the disposal of municipal solid wastes continues to be widely accepted and used due to its economic advantages, but it could be a potential source of surface and ground water contamination. Therefore, the study was conducted to investigate the efficiency of ultrasonic irradiation for...
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| Format: | Article |
| Language: | English English |
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IUP Publications
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23572/ http://psasir.upm.edu.my/id/eprint/23572/1/Effects%20of%20ultrasonic%20irradiation%20on%20concentration%20of%20chemical%20oxygen%20demand%20in%20Landfill%20Leachate.pdf |
| _version_ | 1848844795647098880 |
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| author | Abdul Latif, Puziah Chua, Sze Yee Ibrahim, Shaharin Rosli, Nurliza |
| author_facet | Abdul Latif, Puziah Chua, Sze Yee Ibrahim, Shaharin Rosli, Nurliza |
| author_sort | Abdul Latif, Puziah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Landfilling for the disposal of municipal solid wastes continues to be widely accepted and used due to its economic advantages, but it could be a potential source of surface and ground water contamination. Therefore, the study was conducted to investigate the efficiency of ultrasonic irradiation for reducing the Chemical Oxygen Demand (COD) from one of the landfill sites in Malaysia. Several operating conditions, such as power density (24 to 188 W/L), pH (2 to 11), dilution factor (1:9, 1:1 and 9:1) and addition of different amount of Ferrous sulfate (FeSO4) (1.0 to 5.0 mmol/L) were tested concerning their effect on COD reduction. Results indicated that the best irradiation conditions were enhanced at increased power density of 188 W/L, pH 7.4, initial concentration and without addition of catalysts with a percentage reduction of 95.55%. This suggested that the removal of COD in landfill leachate was mainly contributed by higher concentration of hydroxyl radical which leads to higher reduction of organic matters. |
| first_indexed | 2025-11-15T08:36:36Z |
| format | Article |
| id | upm-23572 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:36:36Z |
| publishDate | 2011 |
| publisher | IUP Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-235722015-10-01T02:03:32Z http://psasir.upm.edu.my/id/eprint/23572/ Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. Abdul Latif, Puziah Chua, Sze Yee Ibrahim, Shaharin Rosli, Nurliza Landfilling for the disposal of municipal solid wastes continues to be widely accepted and used due to its economic advantages, but it could be a potential source of surface and ground water contamination. Therefore, the study was conducted to investigate the efficiency of ultrasonic irradiation for reducing the Chemical Oxygen Demand (COD) from one of the landfill sites in Malaysia. Several operating conditions, such as power density (24 to 188 W/L), pH (2 to 11), dilution factor (1:9, 1:1 and 9:1) and addition of different amount of Ferrous sulfate (FeSO4) (1.0 to 5.0 mmol/L) were tested concerning their effect on COD reduction. Results indicated that the best irradiation conditions were enhanced at increased power density of 188 W/L, pH 7.4, initial concentration and without addition of catalysts with a percentage reduction of 95.55%. This suggested that the removal of COD in landfill leachate was mainly contributed by higher concentration of hydroxyl radical which leads to higher reduction of organic matters. IUP Publications 2011-05 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23572/1/Effects%20of%20ultrasonic%20irradiation%20on%20concentration%20of%20chemical%20oxygen%20demand%20in%20Landfill%20Leachate.pdf Abdul Latif, Puziah and Chua, Sze Yee and Ibrahim, Shaharin and Rosli, Nurliza (2011) Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. The IUP Journal of Environmental Sciences, 5 (2 ). pp. 28-36. ISSN 0973-9912 http://www.iup.edu/ English |
| spellingShingle | Abdul Latif, Puziah Chua, Sze Yee Ibrahim, Shaharin Rosli, Nurliza Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. |
| title | Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. |
| title_full | Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. |
| title_fullStr | Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. |
| title_full_unstemmed | Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. |
| title_short | Effects of ultrasonic irradiation on concentration of chemical oxygen demand in Landfill Leachate. |
| title_sort | effects of ultrasonic irradiation on concentration of chemical oxygen demand in landfill leachate. |
| url | http://psasir.upm.edu.my/id/eprint/23572/ http://psasir.upm.edu.my/id/eprint/23572/ http://psasir.upm.edu.my/id/eprint/23572/1/Effects%20of%20ultrasonic%20irradiation%20on%20concentration%20of%20chemical%20oxygen%20demand%20in%20Landfill%20Leachate.pdf |