FWC-NbS 5: Surface artificial channels (Type C)
Location: Touggourt, Algeria
Climate: Arid climate
Area: 600 Ha
Objectives: Improve storage and efficiency of artificial distribution systems, mitigating pollution and environmental degradation.
Challenges: Droughts and water scarcity; water quality; stagnant water; air pollution; silting; evaporation; soil degradation; biodiversity loss; erosion; high water levels; groundwater level decrease
Description: Oued Righ channel is located in the South East of Algeria, crossing 12 municipalities of two states on a stretch of 150 km, ending in the natural lake Chott Merouane, part of one of the most important Algerian wetland complexes. It passes by the middle of palm groves and near oasis dwelling areas and offers a unique ecosystem essential for their inhabitants. The southern part of the channel has been dug, while the northern part has natural origin. The channel collects water from the few annual storms and drainage from agriculture irrigation. In this region, the wastewater treatment plant (WWTP) treats just 20% of urban wastewater, while the rest is discharged directly into the Oued Righ channel. The channel also plays an important role in the drawdown of the water table. Maintenance work has been carried out to lower the water table, protect the environment and reshape channel banks.