CONSTRUCTION OF WASTEWATER TREATMENT PLANT – LOT 2 (REGIONS: TULU DIMTU, BOLE ARABBISA, GENET MANAFESHA AND ORYMIYA) IN ETHIOPIA
AWARD AUTHORITY
A.A.W.S.A. WATER SUPPLY AND SANITATION DEVELOPMENT AND REHABILITATION PROJECT OFFICE
CONTRACTOR
J/V MESOGEOS S.A..-DEVISE S.A.- TECHNOVA LTD
REGEON
Addis Ababa
PROGRESS
The project includes the design, procurement and construction of a sewage treatment plant with MBR Membranes including all required civil works as described below for the treatment of domestic sewage in 3 areas (total 7 points)
The capacity of the units is:
- Oromia Condominium 1.200m3/d
- Tulu Dimtu 1 1.980 m3/d
- Tulu Dimtu 2 1.980 m3/d
- Tulu Dimtu 3 1.000 m3/d
- Bole Arabsa 1A 2.600 m3/d
- Bole Arabsa 2A 3.600 m3/d
- Bole Arabsa 2B 4.300 m3/d

The facilities consist of the following parts:
- Initial lift pump station
- Combined pretreatment system
- Equilibration tank
- Fine sieves
- Primary sedimentation
- Aeration tanks
- MBR membranes installed in stainless tanks
- Clarified collection tanks
- Chemical dosing system
- Sludge thickening tank
- Sludge dewatering unit
- Control centre
- Power couple