Feasibility study of pilot scale vegetable waste composting project for Kundasang community’s waste management program
Purpose: Vegetable waste (VW) composting was assessed using a passive aerated pilot-scale composter at Kundasang, Sabah. The passive aerated composting system proposed at Kundasang Community Composting Site (KCCS) was analyzed for its techno-economic impact. Method: The composting performance (te...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
OICC Press
2024
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/45316/1/Murshid%20et%20al%202024b.pdf http://ir.unimas.my/id/eprint/45316/ https://oiccpress.com/international-journal-of-recycling-of-organic-waste-in-agriculture/article/feasibility-study-of-pilot-scale-vegetable-waste-composting-project-for-kundasang-communitys-waste-management-program/ https://dx.doi.org/10.57647/j.ijrowa.2024.1303.27 |
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| Summary: | Purpose: Vegetable waste (VW) composting was assessed using a passive aerated pilot-scale composter at
Kundasang, Sabah. The passive aerated composting system proposed at Kundasang Community Composting
Site (KCCS) was analyzed for its techno-economic impact.
Method: The composting performance (temperature, organic matter loss, moisture content, pH value,
electrical conductivity, and nutrient value) of 500 ± 2 kg of VW, 250 ± 2 kg of RH, and 19 ± 1 kg of CM
feedstock mixture was analyzed. The benefit-to-cost ratio was used to assess the impact of the technoeconomic analysis on the designed and piloted KCCS.
Results: In the pilot scale composting condition, temperature reached its highest at 59 ± 7
◦C (day 5) and
for five consecutive days (day 2 until day 6) in the thermophilic phase. Results of the final compost (on a
dry matter basis) showed that the moisture content is 62 ± 0.2% WM, the pH level is 7.6 ± 0.1, the electrical
conductivity is 1.8 ± 0.4 mS/cm, and the N, P, and K values are 0.58 ± 0.10% DM, 0.04 ± 0.02% DM, and
0.17 ± 0.04% DM, respectively. The techno-economic analysis shows that with the capital cost normalized
on a 20-year basis, the KCCS composter system can generate approximately MYR 25, 000 (USD 5, 600) per
year in revenue.
Conclusion: The results show that these composting methods are suitable for VW and Kundasang community
conditions, and this study will benefit the community in dealing with VW waste and generating a circular
economy while establishing a self-sustaining communit |
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