Improving integrated MSW collection and transportations systems for Addis Ababa city: a case of Akaki-Kality sub-city
Creators: name: Abebaw Shibeshi
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2020
Subjects: Optimization, Solid waste, collection, pre-collection bin, transfer station, solid waste management, transportation, solid waste generation, and solid waste composition

description: Municipal solid waste (MSW) refers to solid wastes originated from houses, streets, and public<br> places, shops, offices, and hospitals, management of this waste is the responsibility of<br> municipal or other governmental authorities. Despite the quickened pace of solid waste<br> production rate waste collection are lower than 70% in low-income nations. Addis Ababa solid<br> waste collected and transported are 65%. The case of poor solid waste collection and<br> transportation is not presently available well-designed collection and transportation systems<br> res in the sub-city. The main objective of the study was to develop optimized collection and<br> transportation systems of the Akaki-Kality sub-city.<br> Stratification of the study area into homogeneous sub-divisions was done to obtain accurate<br> results of the survey. Then determined the sample size of each division and the total sample<br> size was 336. After determining the sample size, the location of the sample was identified by<br> random sampling of each stratum. The sample collection was carried out by coordinating with<br> solid waste collectors for the household. Solid waste generation was determined by measuring<br> directly at the source of solid waste. Whereas composition was determined after taking samples<br> into segregation points.<br> The solid waste generation rates in different income levels were 0.22, 0.29. and 0.95 for LIHH,<br> MIHH, and HIHH respectively. The household income level classified based on house they<br> live. The average solid waste generation rate is 0.49 kg/c/d. The major source of MSW was<br> households it accounts for 141,996.12 kg/d and 464.53.6m3/d following household, shops,<br> hotels, and restaurants generate 32,328 and 25,8813.2 kg/d respectively. the total solid waste<br> was 206,862.44kg and 711.68m3 per day in Akaki Kality sub-city.<br> The location of the pre-collection bin was developed based on the willingness of solid waste<br> generators to take their solid waste to a specific place. There were 1052 pre-collection bins<br> 65.24% in radial distance 100m, 8.55% radial distance of 200m, 3.16% in radial distance of<br> 300m, 1.61% in 400m 1.2% in 500m radial distance and 20.24% was greater than 500m radial<br> distance.<br> There are eight criteria was considered suitability analysis of solid waste transfer station,<br> which is land use land cover, slope, distance from residential areas, distance from road<br> distance from protected areas, distance from groundwater, and distance from river and<br> streams. The area which is highly suitable for solid waste transfer station was 18.6%.<br> 12 improved collection and transportation routes were found and are serves 1052 precollection bins. A maximum distance route was 55km and it serves 68 pre-collection bins. The<br> total distance from the pre-collection bin to the transfer station was 399.6km. The paper was<br> transported to Penda paper recycling factory and plastic waste to the Ethiopolymer factory for reccling.