Greater Tunis Sewerage and Reuse Project

- The Greater Tunis Sewerage and Reuse Project will assist the government in:

a) improving service levels of urban sewerage up to the average level of potable water service;

b) promoting efficient reuse of effluent from sewerage treatment plants for agricultural purposes;

c) reducing urban and coastal pollution;

d) improving cost recovery and financial capacity of the national agency in charge of sewerage management (ONAS);

e) introducing appropriate new sewage treatment technology;

f) providing technical assistance to develop private sector participation in the sewerage sector; and

g) acquiring environmental monitoring and management equipment and tools, and studies.

- There are two components. The urban sewerage for ONAS component includes:

1) extending and rehabilitating the Tunis South wastewater treatment plant (WWTP);

2) restructuring the western Tunis sewerage collection system;

3) strengthening the southern Tunis sewage collection system and connecting villages to the WWTP;

4) extending the Northern Tunis sewage collection system and constructing a liaison conduit; and

5) extending, rehabilitating, and resizing the sewage collection networks of Central and Northern Tunis; 6) strengthening all secondary sewer systems;

7) building pumping systems;

8) acquiring miscellaneous sewer maintenance and management equipment; and

9) technical assistance, studies, and research work.

- The second component, the agricultural component for the Ministry of Agriculture, includes:

1) building a multi-seasonal storage basin with a capacity of one to two million cubic meters in the El Attar valley;

2) equipping an area of 1,000 ha to be irrigated with treated sewage; and

3) carrying out a pilot project for groundwater recharge with tertiary treated purified sewage