The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment
This study examines the suitability of natural silica sand as a low-cost adsorbent for the removal of ammoniacal nitrogen and heavy metals, particularly iron and zinc, from semi-aerobic stabilized landfill leachate. Leachate samples were collected from the Pulau Burung landfill site (PBLS) in Penang...
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| Format: | Article |
| Language: | English |
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MDPI AG
2010-12-01
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| Series: | Water |
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| Online Access: | http://www.mdpi.com/2073-4441/2/4/904/ |
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| author | Ezlina Othman Yung-Tse Hung Mohammed J. K. Bashir Mohd Nordin Adlan Hamidi Abdul Aziz Mohd Suffian Yusoff |
| author_facet | Ezlina Othman Yung-Tse Hung Mohammed J. K. Bashir Mohd Nordin Adlan Hamidi Abdul Aziz Mohd Suffian Yusoff |
| author_sort | Ezlina Othman |
| collection | DOAJ |
| description | This study examines the suitability of natural silica sand as a low-cost adsorbent for the removal of ammoniacal nitrogen and heavy metals, particularly iron and zinc, from semi-aerobic stabilized landfill leachate. Leachate samples were collected from the Pulau Burung landfill site (PBLS) in Penang, Malaysia. The above-mentioned contaminants are highlighted in this study because of their unsafe concentrations at PBLS. The effects of shaking time, settling time, and silica sand dosage on the study parameter removal efficiencies were investigated to predict the performance of the process. The adsorptions of ammoniacal nitrogen, iron, and zinc were judiciously described by Langmuir and Freundlich isotherm models. The optimum removal efficiencies of ammoniacal nitrogen, iron, and zinc obtained were 51%, 44.4%, and 39.2%, respectively, with a shaking time of 90 min, a settling time of 60 min, and with a dosage of 60 g (0.5 kg/L) of silica sand. Based on the coefficient of determination (R2) values obtained from Langmuir and Freundlich isotherm models, ammoniacal nitrogen, iron, and zinc adsorption were better fitted to the Freundlich model. |
| first_indexed | 2024-04-13T00:23:25Z |
| format | Article |
| id | doaj.art-5b9d598da3c443b194d7dd62633937a9 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-13T00:23:25Z |
| publishDate | 2010-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-5b9d598da3c443b194d7dd62633937a92022-12-22T03:10:40ZengMDPI AGWater2073-44412010-12-012490491510.3390/w2040904The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate TreatmentEzlina OthmanYung-Tse HungMohammed J. K. BashirMohd Nordin AdlanHamidi Abdul AzizMohd Suffian YusoffThis study examines the suitability of natural silica sand as a low-cost adsorbent for the removal of ammoniacal nitrogen and heavy metals, particularly iron and zinc, from semi-aerobic stabilized landfill leachate. Leachate samples were collected from the Pulau Burung landfill site (PBLS) in Penang, Malaysia. The above-mentioned contaminants are highlighted in this study because of their unsafe concentrations at PBLS. The effects of shaking time, settling time, and silica sand dosage on the study parameter removal efficiencies were investigated to predict the performance of the process. The adsorptions of ammoniacal nitrogen, iron, and zinc were judiciously described by Langmuir and Freundlich isotherm models. The optimum removal efficiencies of ammoniacal nitrogen, iron, and zinc obtained were 51%, 44.4%, and 39.2%, respectively, with a shaking time of 90 min, a settling time of 60 min, and with a dosage of 60 g (0.5 kg/L) of silica sand. Based on the coefficient of determination (R2) values obtained from Langmuir and Freundlich isotherm models, ammoniacal nitrogen, iron, and zinc adsorption were better fitted to the Freundlich model.http://www.mdpi.com/2073-4441/2/4/904/semi-aerobic landfillstabilized leachate treatmentadsorptionsilica sand |
| spellingShingle | Ezlina Othman Yung-Tse Hung Mohammed J. K. Bashir Mohd Nordin Adlan Hamidi Abdul Aziz Mohd Suffian Yusoff The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment Water semi-aerobic landfill stabilized leachate treatment adsorption silica sand |
| title | The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment |
| title_full | The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment |
| title_fullStr | The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment |
| title_full_unstemmed | The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment |
| title_short | The Effectiveness of Silica Sand in Semi-Aerobic Stabilized Landfill Leachate Treatment |
| title_sort | effectiveness of silica sand in semi aerobic stabilized landfill leachate treatment |
| topic | semi-aerobic landfill stabilized leachate treatment adsorption silica sand |
| url | http://www.mdpi.com/2073-4441/2/4/904/ |
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