Your search found 6 records
1 Fernando, Sudarshana; Drechsel, Pay; Jayathilake, Nilanthi; Semasinghe, Christina. 2014. An analysis of the septage management situation in Sri Lanka. [Abstract only] In University of Sri Jayewardenepura. Department of Forestry and Environmental Science; Sri Lanka. Ministry of Environment and Renewable Energy. 19th International Forestry and Environment Symposium on Challenges and Solutions in Forest and Environment Management. Proceedings Part 1: Abstract of Papers, Sigiriya, Sri Lanka, 24-25 October 2014. Nugegoda, Sri Lanka: University of Sri Jayewardenepura. Department of Forestry and Environmental Science; Battaramulla, Sri Lanka: Sri Lanka. Ministry of Environment and Renewable Energy. pp.47-48.
(Location: IWMI HQ Call no: e-copy only Record No: H046699)
(1.05 MB)
2 Fernando, Sudarshana; Drechsel, Pay; Jayathilake, Nilanthi; Semasinghe, Christina. 2014. Solid waste and septage co-composting as a pathway to cost and resource recovery in Sri Lanka. In Asian Institute of Technology (AIT). From toilet to source - Accelerating uptake of sustainable and integrated wastewater management solutions: proceedings of the 1st Specialist Conference on Municipal Water Management and Sanitation in Developing Countries, Bangkok, Thailand, 2-4 December 2014. London, UK: IWA Publishing; Bangkok, Thailand: Asian Institute of Technology. pp.246-252.
Solid wastes ; Urban wastes ; Composting ; Resource management ; Recycling ; Cost recovery ; Nutrients ; Faecal coliforms ; Sewage sludge ; Farmers / Sri Lanka
(Location: IWMI HQ Call no: e-copy only Record No: H046757)
(0.45 MB)
Due to its low nutrient content, compost from municipal solid waste (MS\I\1 qualifies mostly as a conditioner of soil physical properties than soil fertility. This limits the value proposition of the compost and its potential for cost recovery to maintain the compost stations. One way to enhance the compost value is to enrich it with nutrients. Given the increasing attention to fecal sludge (FS) management from septic tanks and latrines, co-composting of both waste streams could be a win-win option to increase the compost nutrient value. To assess the current situation of MSW composting and opportunities and acceptance of co-composting in Sri Lanka several field surveys were conducted including a study of 13 MSW compost plants and current septage management practices in 41 local authorities (LA), a detailed case study of an existing plant mixing MSW and FS, and a willingness to pay study among 257 farmers in proximity of a designated pilot co-composting station. The average cost recovery percentage of the existing compost plants was less than one third of the O&M costs in Sri Lanka with significant variations. The willingness to pay study indicated a high interest in enriched compost. Field trials showed that co-composting with septage could enhance the MSW compost nutrient value. For example, the Phosphorous content of 0.4% could be increased nearly 10 times. In general, co-composting could increase the financial sustainability of the existing compost plants to a substantial degree, while nutrient recovery from MSW without septage addition may not be financially sustainable. Pelletized co-compost could have an increased market value of 70%-1000,1, compare to the normal MSW compost.
3 Rink, Paul; Semasinghe, Christina; Manthrithilake, Herath. 2016. The potential benefits of rainwater harvesting for households in the Jaffna Peninsula. Sri Lanka Journal of Aquatic Sciences, 21(1):59-65.
Rainwater ; Water harvesting ; Household consumption ; Groundwater extraction ; Water supply ; Domestic water ; Drinking water ; Water use ; Cost benefit analysis / Sri Lanka / Jaffna Peninsula
(Location: IWMI HQ Call no: e-copy only Record No: H047448)
(0.45 MB)
Recent development activities in the Jaffna Peninsula are threatening the viability of the region’s natural groundwater supply. Rainwater Harvesting (RWH) represents one important approach to remedying this situation. By accumulating freshwater during Jaffna’s wet season, household RWH systems can supply drinking and cooking water for use during the water-limited dry season. Additionally, a RWH calculator created by the International Water Management Institute (IWMI) can be used to customize a RWH system for each family given particular household parameters such as rooftop size and daily extraction rate. When paired with cost estimates for tank construction, a RWH installation cost-benefit analysis can be determined for either a specific household or for a collection of households within the Jaffna region.
4 Fernando, Sudarshana; Semasinghe, Christina; Jayathilake, Nilanthi; Wijayamunie, R.; Wickramasinghe, N.; Dissanayake, S. 2016. City region food system situational analysis, Colombo, Sri Lanka. Colombo, Sri Lanka: International Water Management Institute (IWMI); Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE); Rome, Italy: FAO; Accra, Ghana: Resource Centres on Urban Agriculture and Food Security (RUAF). 251p.
Food consumption ; Food supply ; Food safety ; Food policies ; Food production ; Food chains ; Food security ; Stakeholders ; Corporate culture ; Institutions ; Government departments ; Municipal authorities ; Private sector ; International organizations ; Legal aspects ; Legislation ; Regulations ; Policy making ; Decision making ; Human nutrition ; Malnutrition ; Sociocultural environment ; Poverty ; Natural resources management ; Climate change ; Land use ; Economic aspects ; Small scale systems ; Vegetables ; Fruits ; Livestock ; Milk production ; Crops ; Market prices ; Waste disposal ; Waste management ; Public health ; Health hazards ; Sanitation / Sri Lanka / Colombo
(Location: IWMI HQ Call no: e-copy only Record No: H047774)
(7.37 MB)
5 Fernando, Sudarshana; Drechsel, Pay; Amirova, I.; Semasinghe, Christina; Jayathilake, Nilanthi. 2015. Turning urban waste into an economic asset for urban and periurban farming in Sri Lanka. In Sismondi, L. (Ed.). Proceedings of the 2nd International Conference on Agriculture in an Urbanizing Society-Reconnecting agriculture and food chains to societal needs, 14-17 September 2015, Rome, Italy. Pisa, Italy: Lab di Studi Rurali Sismondi. pp.284-285.
Urban wastes ; Solid wastes ; Composting ; Waste treatment ; Economic infrastructure ; Urban agriculture ; Periurban agriculture ; Nutrients ; Pelleting ; Soil properties ; Fertilizers / Sri Lanka / Kurunegala
(Location: IWMI HQ Call no: e-copy only Record No: H047874)
To assess the current situation of municipal solid waste (MSW) composting opportunities and potential acceptance of nutrient enriched pelletized compost in Sri Lanka,two field surveys were conductednationwide and in Kurunegala (Northwestern) area, respectively. Due to the low nutrient content of MSW compost, it qualifies mostly as a conditioner of the soil’s physical properties. As a result the compost so far produced across the country has received limitedattention. The surveys indicated that if the nutrient levels are increased, 74% of the farmers surveyed are willing to use thecompost. The percentage willing to use compost was similar among farmers of the three most common crops; coconut, paddy and vegetables,ranging from 72 to 77%. Using the land use pattern, the crop cultivation databases and the willingness to use (WTU) results, the potential demand for compost was estimated.As per the results, in the urban context of Kaluthara,a 160% larger capacity plant (present input capacity 38 t/day)would be needed to satisfy market demand within a 10 km radiusof theplant. For the Attanagalla plant (present capacity 10 t/day) within a rural setting, all compost could be absorbed within 2 km.
6 Semasinghe, Christina; Benders, Jorien; Vairavamoorthy, Visakan; Fernando, Sudarshana; Drechsel, Pay. 2016. Vulnerability and resilience of the urban food system to extreme weather: a case study of Colombo, Sri Lanka [Abstract only]. In Centre de cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD). International Conference on Agri-Chains and Sustainable Development: Linking Local and Global Dynamics, Montpellier, France, 12-14 December 2016. Abstracts Book. Paris, France: Centre de cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD). pp.180-181.
Food supply ; Urban areas ; Weather hazards ; Flooding ; Resilience ; Vegetables ; Fish ; Commodity markets ; Supply chain ; Case studies / Sri Lanka / Colombo
(Location: IWMI HQ Call no: e-copy only Record No: H047892)
http://acsd2016.cirad.fr/content/download/4317/32688/version/1/file/Book+of+abstracts.pdf
https://vlibrary.iwmi.org/pdf/H047892.pdf
https://vlibrary.iwmi.org/pdf/H047892.pdf
(0.05 MB) (1.84 MB)
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