Internship Report on Bole Bulbula Sewerage Line Construction Project

Eshetu, Eyob (2019) Internship Report on Bole Bulbula Sewerage Line Construction Project. Other thesis, Arba Minch University.

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Abstract

1.1 General introduction about the internship In Addis Ababa, the water supply service becomes 90% whereas the sanitation service only 10%. The total sewerage treatment process of Addis Ababa city assumed as 28% which means 10% by a modern sewer system and 18% by vacuum trucks. As the city has a great role in the African continent the present sanitation level is not enough and it needs great effort and more improvement to connect the city in modern sanitation networks. Ethiopia, one of the largest population numbers in the African continent doesn't have modern sanitation service. The countries sanitation service is not developed as a water supply. The first modern wastewater treatment plant for the city was built in 1981. Before this, all collected raw sewage had been disposed of into the rivers open space and in the solid waste disposal area. Addis Ababa Water and Sewerage Authority (AAWSA) has been first established in 1971. Following the establishment of the authority, the output of the sanitation improvement study of Addis Ababa among others indicated vitality and the need for the construction of modern sewerage facilities to the city. This was realized lately after 11 years and Kaliti treatment plant, the main and secondary sewer lines with the city where constructed in 1981. The city of Addis Ababa has been growing steadily over recent years; due to this, the city needs to connect within a modern sewerage system. Most of the city residents rely upon up onsite sanitation facility due to the limitation of the sewerage system availability. The on-site sanitation systems are generally pit latrines and septic tanks. To manage the sanitation service in a better ground, the Addis Ababa Water and Sewerage Authority, Water and Sanitation Development and Rehabilitation Project office (AAWSA, WSDRPO) had hired an individual consultant and enabled to get an updated wastewater master plan for the three catchments. The existing wastewater master plan study has proposed to manage the wastewater by dividing the city into three catchments namely Akaki, Kaliti, and Eastern catchments. In addition to sewerage pipelines, AAWSA is implementing the collection of waste by vacuum trucks injecting the two treatment plants, Kotebe drying bed and Old Kaliti drying bed, and directly to sewerage line.

Item Type:	Thesis (Other)
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering
Divisions:	Africana
Depositing User:	Mr Eyob Eshetu
Date Deposited:	18 Aug 2021 08:12
Last Modified:	18 Aug 2021 08:12
URI:	http://thesisbank.jhia.ac.ke/id/eprint/9639

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