Dr. Mohammed Hamoda - Composting of Mixtures of Municipal Solid Wastes and Sewage Sludge in Kuwait
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Dr. Mohammed Hamoda - Composting of Mixtures of Municipal Solid Wastes and Sewage Sludge in Kuwait
- 1. Composting of Mixtures of Municipal Solid Waste and Sewage Sludge in Kuwait M.F. Hamoda , Ph.D., P.Eng. Professor of Environmental Engineering Kuwait University, Kuwait
- 4. Composition of MSW in Kuwait Food 55% 10% Paper 8% 5% Glass 4 % 9%
- 7. Table 1. Chemical composition of dewatered MSS sample Parameter Mean Value Standard Error of the Mean pH 7.7 0.15 Moisture Content (%) 54.1 2.24 Organic Matter @ 550 o C (%) 61.5 18.67 Total Organic Carbon (%) 34.2 0.63 Total Kjeldahl Nitrogen (%) 6.1 0.12 C:N Ratio 5.6 0.15
- 8. Table 1. Chemical composition of dewatered MSS samples Table 2. Chemical composition of MSW samples Parameter Mean Value Standard Error of the Mean pH 7.7 0.15 Moisture Content (%) 54.1 2.24 Organic Matter @ 550 o C (%) 61.5 18.67 Total Organic Carbon (%) 34.2 0.63 Total Kjeldahl Nitrogen (%) 6.1 0.12 C:N Ratio 5.6 0.15 Parameter Mean Value Standard Error of the Mean pH 5.3 0.23 Moisture Content (%) 61.3 3.95 Organic Matter @ 550 o C (%) 77.93 3.10 Total Organic Carbon (%) 45.2 1.80 Total Kjeldahl Nitrogen (%) 2.47 0.28 C:N Ratio 18.3 3.09
- 9. Table 3. Characteristics of mixtures of municipal solid wastes and sewage sludges MSW : MSS ( Ratio) Moisture Content (%) C/N (Ratio) Volatile Solids (%) 1:1 54.06 15.25 71.28 2:1 56.78 16.33 72. 35 4:1 58.12 17.36 74.12
- 14. Experimental Set-up Water Cooler Compute r Compresso r Water Pump In-vessel Composting Unit Sludge Temp. Probe Air Vent Air Filter / umidifier Electrical Heaters/Off
- 16. 3.1 Reduction in Volatile Solids during Composting of MSW
- 17. 3.2 Reduction in Volatile Solids during Co-composting of Mixtures of MSW: MSS (2:1)
- 18. 3.3 Reduction in Volatile Solids during Co-composting of Mixtures of MSW:MSS (4:1)
- 19. 3.4 Reduction in Organic Carbon during Composting of MSW
- 20. 3.5 Reduction in Organic Carbon during Co-composting of Mixtures of MSW:MSS (2:1)
- 21. 3.6 Reduction in Organic Carbon during Co-composting of Mixtures of MSW:MSS (4:1)
- 22. 3.7 Variations in C/N Ratio during Composting of MSW
- 23. 3.8 Variations in C/N Ratio during Co-composting of Mixtures of MSW:MSS (2:1)
- 24. 3.9 Variations in C/N Ratio during Co-composting of Mixtures of MSW:MSS (4:1)
- 26. 3.10 Kinetic Analysis for In-Vessel VS Reduction of MSW at 15 o C
- 27. 3.11 Kinetic Analysis for In-Vessel VS Reduction of MSW at 45 o C
- 28. 3.12 Kinetic Analysis for Windrow VS Reduction of MSW at 20 o C
- 29. Table 4. Kinetic rates (k) for VS reductions during in-vessel composting of MSW