BALASHA-JALON Infrastructure Systems LTD. (BJIS) + 972 (4) 8603600                                                                                                                                                                                     balasha@bj-is.com

+ 972 (4) 8603600

balasha@bj-is.com

+ 972 (4) 8603600  |  balasha@bj-is.com

General Background

 

The Shafdan WWTP presently treats approximately 370,000 cubic meters of wastewater per day, contributed by the entire Dan (Greater Tel-Aviv) Region.

 

The wastewater had originally designed for the Activated Sludge process, characterized by a short sludge age, typically 3 days (SRT), without primary clarifiers.

 

Thickened sludge is discharged into the sea through an outfall located 5 km from the shore.

 

In accordance with a decision taken several years ago, the Shafdan must discontinue the discharge of sludge into the sea and implement a land-based biosolids disposal solution.

 

The solution that was decided upon is based on anaerobic stabilization of the sludge in a manner that will enable its use in agriculture.

 

the principal components of the new Anaerobic Digesters facility plant include:

 

  • Screening of the raw sludge (primary and waste activated).
  • Thermophilic anaerobic digestion.
  • Utilization of cogeneration units to produce electricity and hot water from the biogas produced in the digestion process.
  • Treatment of all potential sources of odor using suitable systems 

 

BJIS prepared the detailed design of the Anaerobic Digesters Facility and the project is now under construction.

 

The services included   architectural, civil, mechanical electrical, and control engineering, and general supervision of construction.

 

 

Basic Design Data:

  

Parameter

Unit

Value

Design year

-

2030

Avarage annual sludge flow

m3/d

4,800

Maximum monthly sludge flow

m3/d

5,900

Maximum daily sludge flow

m3/d

9,110

Average annual sludge flow

TS, t/d

230

Maximum monthly sludge flow

TS, t/d

282

Maximum daily sludge flow

TS, t/d

431

  

 

 

Main Facilities:

    

  • Eight (8) sludge screening units
  • Eight (8) 13,200 cum thermophilic digesters
  • Seven (7) 1.2 MW co-generation units
  • Gas treatment units for the removal of H2S and siloxane

 

 

 

 

Shafdan Anaerobic Digesters Facility - Israel