| EPSRC Reference: |
GR/R40487/01 |
| Title: |
Landfill Leachate Treatment in Downflow Reed Bed Systems |
| Principal Investigator: |
Sun, Dr GJ |
| Other Investigators: |
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| Department: |
Chemical Engineering |
| Organisation: |
Queen's University of Belfast |
| Scheme: |
Fast Stream |
| Starts: |
01 October 2001 |
Ends: |
30 September 2004 |
Value (£): |
59,996
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| EPSRC Research Topic Classifications: |
| Assess/Remediate Contamination |
Energy Efficiency |
| Water Engineering |
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Summary on Grant Application Form |
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Effluent present in a contaminated landfill site for waste disposal is known as leachate. Landfill leachates have made a serious pollution threat to the water environment because of their enormous quantities and high levels of BOD, COD and ammoniacal-nitrogen contents. As a 'green' technology, reed bed systems provide reliable treatment for a variety of effluents with lower energy requirement and operation cost. Landfill sites can usually provide the necessary space for constructing a reed bed system. Reeds have an attractive appearance, which compensate for the poor image of landfill sites. Therefore reed bed technology has distinct advantages and is pre-competitive for leachate treatment.Downflow reed bed system employing effluent recirculation is a new technique that significantly enhances pollutant-microorganisms interaction and the oxygen consumption rate by microorganisms inside the reed bed matrix. Initial trials of such technique at a landfill site near Swindon produced promising results. In the proposed project, several leachates from different landfill sites will be collected and treated in a laboratory-scale system. Optimal effluent recirculation ratio will be investigated. The mechanisms and kinetics of BOD, COD and NH4-N removals will be studied. Simple models will be developed, based on the kinetics, to link the pollutant removal rates with their loadings and leachate characteristics.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.qub.ac.uk |