Organic waste system assessment: Kaduwela Municipal Council
Rapid urbanization in Sri Lanka’s Kaduwela municipality generates an estimated 200 tons of solid waste daily, with 54–68% of it being biodegradable. Yet only 71 tons are collected, of which just 10 tons are composted. The remaining is largely sent to private operators for landfilling, costing the co...
| Autores principales: | , , , |
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| Formato: | Informe técnico |
| Lenguaje: | Inglés |
| Publicado: |
University of Technology Sydney. Institute for Sustainable Futures
2021
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/117307 |
| _version_ | 1855520968583151616 |
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| author | Jayathilake, Nilanthi Drechsel, Pay Dominish, E. Carrard, N. |
| author_browse | Carrard, N. Dominish, E. Drechsel, Pay Jayathilake, Nilanthi |
| author_facet | Jayathilake, Nilanthi Drechsel, Pay Dominish, E. Carrard, N. |
| author_sort | Jayathilake, Nilanthi |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rapid urbanization in Sri Lanka’s Kaduwela municipality generates an estimated 200 tons of solid waste daily, with 54–68% of it being biodegradable. Yet only 71 tons are collected, of which just 10 tons are composted. The remaining is largely sent to private operators for landfilling, costing the council LKR 166,500 per day. Despite attempts to promote composting and biogas production, weak operational practices and space constraints limit effectiveness. Compost sales remain low, averaging just 8–20 tons per month, with minimal revenue generation. Meanwhile, onsite sanitation systems serve nearly the entire municipality, as there is no sewer network. Septage collection mostly handled by private operators averages 181 m³/day, but nearly all of it is disposed at an overloaded pumping station not designed for such volumes. Only 27% of operational costs are recovered through service fees. Scenarios explored in the assessment show that if the compost plant were upgraded to its 20-ton capacity and integrated with dried faecal sludge (DFS) from septage, up to 13 tons of co-compost could be produced daily. However, this requires infrastructure investment, better composting practices, and coordination across public and private actors. Optimizing collection, improving compost quality, and exploring co-composting and biogas applications can enhance sustainability and cost recovery, while reducing environmental burdens from unmanaged urban waste. |
| format | Informe técnico |
| id | CGSpace117307 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | University of Technology Sydney. Institute for Sustainable Futures |
| publisherStr | University of Technology Sydney. Institute for Sustainable Futures |
| record_format | dspace |
| spelling | CGSpace1173072025-06-13T04:26:58Z Organic waste system assessment: Kaduwela Municipal Council Jayathilake, Nilanthi Drechsel, Pay Dominish, E. Carrard, N. organic wastes urban wastes municipal authorities waste management assessment solid wastes faecal sludge waste collection waste treatment waste disposal treatment plants recycling composting biogas landfills resource recovery sanitation private sector financial analysis parameters Rapid urbanization in Sri Lanka’s Kaduwela municipality generates an estimated 200 tons of solid waste daily, with 54–68% of it being biodegradable. Yet only 71 tons are collected, of which just 10 tons are composted. The remaining is largely sent to private operators for landfilling, costing the council LKR 166,500 per day. Despite attempts to promote composting and biogas production, weak operational practices and space constraints limit effectiveness. Compost sales remain low, averaging just 8–20 tons per month, with minimal revenue generation. Meanwhile, onsite sanitation systems serve nearly the entire municipality, as there is no sewer network. Septage collection mostly handled by private operators averages 181 m³/day, but nearly all of it is disposed at an overloaded pumping station not designed for such volumes. Only 27% of operational costs are recovered through service fees. Scenarios explored in the assessment show that if the compost plant were upgraded to its 20-ton capacity and integrated with dried faecal sludge (DFS) from septage, up to 13 tons of co-compost could be produced daily. However, this requires infrastructure investment, better composting practices, and coordination across public and private actors. Optimizing collection, improving compost quality, and exploring co-composting and biogas applications can enhance sustainability and cost recovery, while reducing environmental burdens from unmanaged urban waste. 2021-04-01 2021-12-31T13:23:49Z 2021-12-31T13:23:49Z Report https://hdl.handle.net/10568/117307 en Open Access University of Technology Sydney. Institute for Sustainable Futures Jayathilake, Nilanthi; Drechsel, Pay; Dominish, E.; Carrard, N. 2021. Organic waste system assessment: Kaduwela Municipal Council. Report prepared by the International Water Management Institute (IWMI) as part of Activity 1 within the project “From Urban Waste to Sustainable Value Chains: Linking Sanitation and Agriculture through Innovative Partnerships”. Sydney, Australia: University of Technology Sydney. Institute for Sustainable Futures. 53p. |
| spellingShingle | organic wastes urban wastes municipal authorities waste management assessment solid wastes faecal sludge waste collection waste treatment waste disposal treatment plants recycling composting biogas landfills resource recovery sanitation private sector financial analysis parameters Jayathilake, Nilanthi Drechsel, Pay Dominish, E. Carrard, N. Organic waste system assessment: Kaduwela Municipal Council |
| title | Organic waste system assessment: Kaduwela Municipal Council |
| title_full | Organic waste system assessment: Kaduwela Municipal Council |
| title_fullStr | Organic waste system assessment: Kaduwela Municipal Council |
| title_full_unstemmed | Organic waste system assessment: Kaduwela Municipal Council |
| title_short | Organic waste system assessment: Kaduwela Municipal Council |
| title_sort | organic waste system assessment kaduwela municipal council |
| topic | organic wastes urban wastes municipal authorities waste management assessment solid wastes faecal sludge waste collection waste treatment waste disposal treatment plants recycling composting biogas landfills resource recovery sanitation private sector financial analysis parameters |
| url | https://hdl.handle.net/10568/117307 |
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