BALASHA-JALON Infrastructure Systems LTD. (BJIS)

                           בלשה-ילון מערכות תשתית בע"מ                                                                                                                                    

BALASHA-JALON Infrastructure Systems LTD. (BJIS)

  בלשה-ילון מערכות תשתית בע"מ

General Background


Bet Shemesh W.W.T.P serves the municipalities of Bet Shemesh and regional council Mate'-Yehuda, having population of 120,000.


The plant was built in the late 90's for an average design flow of 22,500 cum/day.


The effluent are reclaimed for agriculture use.


BJIS prepared the general and detailed design including process, civil, mechanical, and electrical and control engineering and provided general supervision of construction.


Basic Design Facts:


  • Average Design Flow (m3/day): 22,500
  • Average B.O.D. Load (Kg/day): 10,000
  • Effluent Quality (BOD/TSS/N): 20/15/10




 Liquid Process and Facilities


Main Process:


B. N. R. Activated Sludge.




  • Bar screens
  • Grit removal
  • Primary clarifiers
  • B.N.R. Activated sludge reactors with low-speed surface aerators -590kW
  • Final clarifiers





  Sludge Process and Facilities


Main Process:


Aerobic Stabilization




  • G.B.T. units for the thickening of W.A.S.
  • B.F.P. units for the dewatering of the thickened W.A.S and the primary sludge
  • Lime stabilization of dewatered sludge using N-VIRO process




Bet Shemesh WWTP - Israel