The Shafdan WWTP presently treats approximately 370,000 cubic meters of wastewater per day, contributed by the entire Dan (Grater Tel-Aviv) Region.
The wastewater are biologically treated by the Activated Sludge process, characterized by a short sludge age, typically 3 days (SRT), while the waste activated sludge (WAS) is discharged to the sea through an outfall pipe.
According to a recently formed environmental policy, the discharge of WAS to the sea will be discontinued, replaced by an alternative system of sludge disposal.
BJIS prepared the general and the detailed design of the sludge thickening and dewatering facility which will be required for any following process to be selected for the sludge disposal.
The services included process, civil, mechanical electrical and control engineering and general of supervision construction.
The sludge and dewatering facility us under the final stage of construction (August 2008)
Basic Design Facts:
- Volume of Waste Activated Sludge - WAS (m3/day): 25,600 - 32,000
- WAS Solids Weight (Ton dry solids/day): 192