Browsing by Author "Mangalika, L"

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Preliminary solid waste management (SWM) data survey and assessment of town, treatment site and disposal site conditions; case study southern province of Sri Lanka
(2013-11-13) Edirisinghe, DD; Priyankara, NH; Dayanthi, KCN; Alagiyawanna, AMN; Mangalika, L; Ijima, S; Kawamoto, K
In case of southern province of Sri Lanka, Solid Waste Management (SWM) can be an aggravated problem in future with respect to the present development activities in the area. To find a sustainable solution for this problem is very important to aware about present situation of SWM in the province. But there is no SWM data survey has been carried out in the province recently. Therefore under this research work a preliminary SWM data survey has been conducted in all 49 Local Authorities (LA) in Southern province. Research work was basically carried out at LA level since LA is the responsible administration body for solid waste management within its territory. Further town condition, waste treatment and disposal site conditions of each local authority were visited and assessed according to an accepted assessment criteria. Total daily waste collection in the province is 231.65 tons and it is only a 20% of total daily waste generation in the province. Composting is the most adopted waste treatment method in the province as 19 LAs out of 49 have already established composting facilities. Waste disposal is the major problem for most of the LAs as it contributes to create many socio-environmental issues. When consider waste disposal methods in southern province, 29 LAs have adopted open dumping while other LAs are burying. According to the assessment it was found that SWM in 96 percent of LAs is not up the acceptable level. The findings and results of the study have been presented in this research paper in detail.
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Solid waste generation, characteristics and management within the households in Sri Lankan urban areas
(2013-11-13) Wijerathna, DMCB; Lee, K; Koide, T; Jinadasa, KBSN; Kawamoto, K; Iijima, S; Herath, GBB; Kalpage, CS; Mangalika, L
Municipal Solid Wastes are becoming a multidimensional threat to the Sri Lankan environment. Especially the solutions are needed to reduce the amount of the environmental problem caused by haphazard solid wastes disposal done by the local governments and the public Even though the country’s Solid Waste Management (SWM) strategy is aimed to reduce the amount of final disposal by introducing reuse trends, proper collection methods, source segregation and improved recovery of recyclables still needed to be established. But there should be the knowledge of the amount of waste generation and their composition to guide for the appropriate solutions which the methods can be implemented. Solid Wastes generation from the urban households would cause many problems than in the rural. The consumption rates and the patterns are different from each High, Middle and Low income levels in the urban areas and as well as from the urban areas to the rural areas, so that the waste generation pattern also different from each other. This study discusses the consumption of consumer goods and the solid wastes generation at Gampola UC area, Sri Lanka. Data were obtained through a Waste Amount and Composition Survey which was done throughout 7 consecutive days of a particular week in August, 2012 with consideration of different income levels of the households and a Non-Collection area from the UC limits. Household wastes consisted of kitchen wastes, garden wastes, paper & cardboard, plastics, textiles, rubber & leather, metal, glass, ceramics, hazardous wastes and E- wastes, the proportion of each waste was approximately 61.5%, 8.92%, 3.02%, 3.25%, 0.71%, 0.25%, 0.58%, 0.97%, 0.04%, 0.23% and 1.26%, respectively. The waste generation rates for High, Middle, Low levels and Non-Collection areas are respectively 0.44, 0.31, 0.27 and 0.55 kg/pers/day. It has indicated that there is a relationship between the household income and the total waste generation.