מקור הולכת שפכים
Sources and transport of wastewater
Origin of the wastewater:
The treatment plant primarily receives and treats household sanitary wastewater. The plant also receives industrial wastewater from industrial plants served by the Association in the area. Industrial wastewater constitutes about 15% of all wastewater treated at the plant. Industrial wastewater that is discharged to collectors in the public sewage system must comply with Water & Sewage Association Rules (Plant Wastewater Discharged into Sewage Systems) 2014.
Wastewater treatment begins in the sewage collection systems of each of the local authorities belonging to the Association. The wastewater collection system consists of about 100 km of main collector pipes and pressure lines in various diameters of up to 2 m. Wastewater is pumped and discharged into the Haifa Bay area treatment plant through 46 pumping stations distributed throughout the Association’s service area. This wastewater is delivered to the treatment plant through underground carrier pipes, generally by way of gravitation. Wastewater reaching the plant is pumped to treatment processes through three Archimedes pumps having a total flow rate of 16,500 m³ per hour and a head of 13 m. Further on, the wastewater is discharged into the various processes in the plant by gravitation.