Survey On The Status Of Solid Waste And Its Management In Nifas-silk Lafto Sub-city Addis Ababa

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The current state of solid waste management was investigated in the case of Nifas-Silk Laftornsub city in the city of Addis Ababa. The waste generation and composition profile thatrndetermines the appropriateness of different waste management options was created after a 20rndays solid waste sampling investigation conducted in the sub city. The paper describes thernresults of (1) the sampling method, which was conducted in 10 Kebeles of the sub city in 2000rnselected primary major solid waste generating sources (2) the quantitative and compositionrnanalysis of the collected samples and (3) evaluating the current status of MSWM for sub cityrnhas been carried out to identify the major problems and limitations. Comparative analysesrnbetween the above mentioned data and on past data derived from investigations conducted inrnother sub cities and in the city of Addis Ababa with similar characteristics to this study werernused to identify and discuss future trends in the composition of generated waste over time.rnThe final result of this study showed that the SW generation rate by weight per day: per capitarnwas 0.293 kg, per source was 1.283 kg, total generated per day from all sources was 98960 kg,rnshare of each source % by weight was 73.9%, 16%, 8.13%, 0.138% and 1.832% fromrnresidential, commercial, institutions, industries and others, respectively, and the compositionrnpercentage by weight was 38%, 23%, 13%, 9%, 13%, 0.3%, 2%, 0.4%, 0.6%, 0.4%, 0.1%,rn0.03%, 0.0008%, 0.01%, 0.00002%, 0.00001% 0.00002% for food leftover, dust & ash,rnplastic, paper, yard wastes, carcass & offal, textile, metal, wood, glass, hair & fur, rubber &rntire, composite wastes, sawdust, ceramics & bricks, medical wastes and jute sacks respectively.rnIt was also found that the moisture content and bulk density for food leftover, dust and ash,rnplastics, yard wastes, paper, textile and wood were: 62% and 375 kg/m3, 2% and 1650 kg/m3,rn15% and 52 kg/m3, 56% and 110 kg/m3, 5.2% and 75 kg/m3, 9% and 242 kg/m3 and 15% andrn510 kg/m3 respectively. An analysis of the current waste management status in the city as wellrnas the feasibility of implementing a comprehensive management approach is assessed takingrninto account guidelines set worldwide to promote source reduction, reuse composting,rnrenewable energy sources use, and recycling. The study is concluded with a few fruitfulrnsuggestions, which may be beneficial to encourage the competent authorities/researchers tornwork towards further more detail investigations and researches for improvement of the presentrnsystem.rnThe results of this survey are to be utilized by the city solid waste agencies and authorities inrnorder to establish an integrated waste management system capable of fulfilling the city’s wasternmanagement demands.rnKey words: Solid waste generation, solid waste composition, Integrated Solid Wasternmanagement, solid waste sources, waste components, solid waste, wet weight, dry weightrnmoisture content, bulk density.

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Survey On The Status Of Solid Waste And Its Management In Nifas-silk Lafto Sub-city Addis Ababa

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