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


The plant serves the municipalities of Jerusalem (its eastern part) as well as other smaller municipalities and communities with population equivalent of 150,000 and is under construction in 2013.


The WWTP was designed based on the Dual Power Multi-Cellular Aerated Lagoon System (DPMCALSs) as developed by Prof. Rich from the Clemson University.


The plant consists of aerated lagoons in series (4 phases) having tapered aeration.


Settled biomass is expected to undergo benthal stabilization. Solids Separation System will treat aerated lagoons effluent to provide required effluent quality.


BJIS provided general design and complete detailed design services as well as general supervision of construction.




Basic Design Facts:


  • Average Design Flow (m3/day): 24,000
  • Average B.O.D. Load (Kg/day): 7,000
  • Effluent Quality (BOD/TSS/N): 20/30/N.R




 Liquid Process and Facilities


Main Process:


Multi stage aerated lagoons





  • Bar screens and grit removal
  • 4 - stage aerated lagoons









Sludge Process and Facilities


Main Process


Anaerobic Stabilization





  • Settled sludge is an aerobically disintegrated to ash at the bottom of the anaerobic lagoons









 Nebbi Musa Regional WWTP - Israel