Morocco is now benefiting from the use of trickling filters at the newly commissioned Khenifra Wastewater Treatment Works.
Prior to the adoption of trickling filters, facultative and maturation lagoons were used ahead of discharge of the effluent into the watercourse.
The treatment process at the Khenifra Wastewater Treatment Works from start to finish includes: Initial clarification of the influent by settling and sedimentation within Imhoff tanks, biological treatment via trickling filters and secondary settling, followed by drying beds for sludge dewatering.
The new wastewater treatment works will serve a population in excess of 150,000 in the city of Khenifra and will be operated and maintained by Biwater on behalf of the Office National de l’Electricité et de l’Eau Potable – Branche Eau (ONEE) for two years.
Naoum Abdellatif, manager of South Sewage Division of ONEE, said: “The treatment process being adhered to will ensure that groundwater and surface water are free from contaminants.”
Giles Jackson, Regional Director for Africa, Biwater Internaltional, said: “The incorporation of trickling filters into the design process at the wastewater treatment works in Khenifra, will ensure that the effluent being discharged meets higher wastewater treatment quality standards, while also improving odour conditions in and around the plant.”
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