Abstract
Physicochemical processes have been used to remove non-biodegradable organic compounds in leachate generated from sanitary landfills. The optimum removal of COD and colour were around 36% and 24% respectively for 7 days of detention time by using conventional extended aeration process widely practiced for the treatment system of Matuail landfill site. This research is undertaken to investigate various operating conditions for minimizing the Fenton reagent dose and maximizing COD and colour removal from the leachate. Considering both the removal efficiencies and sludge disposal, the optimum dosages of H2O2 and Fe2+ were found 1000 mg/l and 1250 mg/l respectively with a molar ratio of 1:1.3. An initial pH of 3~5 for Fenton oxidation and final pH of 5~7 for Fenton coagulation were selected for optimum removal. Under these optimal conditions COD and colour removal efficiencies were over 80% and 97% respectively with 42% of sludge production.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the WasteSafe 2011: 2nd International Conference on Solid Waste Management in Developing Countries, 13-15 February, 2011, Khulna, Bangladesh |
| Publisher | WasteSafe |
| Pages | 69-76 |
| Number of pages | 8 |
| ISBN (Print) | 9789843327055 |
| Publication status | Published - 2011 |
| Event | International Conference on Solid Waste Management in the Developing Countries - Duration: 13 Feb 2011 → … |
Conference
| Conference | International Conference on Solid Waste Management in the Developing Countries |
|---|---|
| Period | 13/02/11 → … |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 12 Responsible Consumption and Production
Keywords
- leachate
- sanitary landfills
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