Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation
The purpose of this study was to track the long-term trends of contaminants distribution in the old landfill of Singapore through monitored natural attenuation and to explore the main parameters that rule such transition. Contaminants distribution, including dissolved organic matter (DOM), inorganic...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/80387 http://hdl.handle.net/10220/40520 |
| _version_ | 1811678799940550656 |
|---|---|
| author | Yin, Ke Tong, Huanhuan Giannis, Apostolos Chang, Victor Wei-Chung Wang, Jing-Yuan |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Yin, Ke Tong, Huanhuan Giannis, Apostolos Chang, Victor Wei-Chung Wang, Jing-Yuan |
| author_sort | Yin, Ke |
| collection | NTU |
| description | The purpose of this study was to track the long-term trends of contaminants distribution in the old landfill of Singapore through monitored natural attenuation and to explore the main parameters that rule such transition. Contaminants distribution, including dissolved organic matter (DOM), inorganic species, heavy metals, and organic compounds, was investigated via monitoring wells in the years 1997, 2004 and 2011. The data revealed that the distribution of contaminants possessed selective attention of spots associated with leachate movement. The hydrogeology of the landfill governed the fate and transportation of contaminants. More specifically, strong statistical correlations were identified between DOM and certain constituents in the leachate, suggesting enhanced mobilization potential. However, the leachate composition exhibited limited correspondence to the nearby solid waste, indicating the minor effect induced by the partitioning coefficient. The presence of sulphate unveiled air intrusion, suggesting increased stability of the landfill, where enhanced biodegradation occurred at earlier period responsible for higher BOD removal. Afterwards other parameters continued to facilitate the compounds removal resulting in overall low concentrations of the contaminants. |
| first_indexed | 2024-10-01T02:59:01Z |
| format | Journal Article |
| id | ntu-10356/80387 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:59:01Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/803872020-09-26T21:58:05Z Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation Yin, Ke Tong, Huanhuan Giannis, Apostolos Chang, Victor Wei-Chung Wang, Jing-Yuan School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Monitoring well Leachate Heavy metals Hydrogeology DOC The purpose of this study was to track the long-term trends of contaminants distribution in the old landfill of Singapore through monitored natural attenuation and to explore the main parameters that rule such transition. Contaminants distribution, including dissolved organic matter (DOM), inorganic species, heavy metals, and organic compounds, was investigated via monitoring wells in the years 1997, 2004 and 2011. The data revealed that the distribution of contaminants possessed selective attention of spots associated with leachate movement. The hydrogeology of the landfill governed the fate and transportation of contaminants. More specifically, strong statistical correlations were identified between DOM and certain constituents in the leachate, suggesting enhanced mobilization potential. However, the leachate composition exhibited limited correspondence to the nearby solid waste, indicating the minor effect induced by the partitioning coefficient. The presence of sulphate unveiled air intrusion, suggesting increased stability of the landfill, where enhanced biodegradation occurred at earlier period responsible for higher BOD removal. Afterwards other parameters continued to facilitate the compounds removal resulting in overall low concentrations of the contaminants. NRF (Natl Research Foundation, S’pore) Accepted version 2016-05-11T04:52:48Z 2019-12-06T13:48:23Z 2016-05-11T04:52:48Z 2019-12-06T13:48:23Z 2016 2016 Journal Article Yin, K., Tong, H., Giannis, A., Chang, V. W.-C., & Wang, J.-Y. (2016). Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation. Waste Management, 53, 105-115. 0956-053X https://hdl.handle.net/10356/80387 http://hdl.handle.net/10220/40520 10.1016/j.wasman.2016.04.033 192070 en Waste Management © 2016 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Waste Management, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.wasman.2016.04.033]. application/pdf |
| spellingShingle | Monitoring well Leachate Heavy metals Hydrogeology DOC Yin, Ke Tong, Huanhuan Giannis, Apostolos Chang, Victor Wei-Chung Wang, Jing-Yuan Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| title | Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| title_full | Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| title_fullStr | Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| title_full_unstemmed | Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| title_short | Insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| title_sort | insights for transformation of contaminants in leachate at a tropical landfill dominated by natural attenuation |
| topic | Monitoring well Leachate Heavy metals Hydrogeology DOC |
| url | https://hdl.handle.net/10356/80387 http://hdl.handle.net/10220/40520 |
| work_keys_str_mv | AT yinke insightsfortransformationofcontaminantsinleachateatatropicallandfilldominatedbynaturalattenuation AT tonghuanhuan insightsfortransformationofcontaminantsinleachateatatropicallandfilldominatedbynaturalattenuation AT giannisapostolos insightsfortransformationofcontaminantsinleachateatatropicallandfilldominatedbynaturalattenuation AT changvictorweichung insightsfortransformationofcontaminantsinleachateatatropicallandfilldominatedbynaturalattenuation AT wangjingyuan insightsfortransformationofcontaminantsinleachateatatropicallandfilldominatedbynaturalattenuation |