Haifa WWTP – Upgrades

Haifa Wastewater Treatment Plant (WWTP)
Upgrading and development of a metropolitan-scale wastewater treatment facility
Location: Haifa and surrounding region
Project Type: Wastewater Treatment Plant (WWTP)
Client: Local Authorities / Regional Water Utilities
Project Status: Completed
Balasha Jalon Role: Full design services (preliminary and detailed design) + construction supervision

🟦 Project Overview
The Haifa Wastewater Treatment Plant is one of the oldest and most significant wastewater treatment facilities in Israel. The first phase of the plant was constructed in the early 1960s and was designed to serve a population of approximately 225,000 residents, making it the first wastewater treatment plant established in Israel.

In the 1970s, the plant underwent its first upgrade, increasing its capacity to serve approximately 560,000 residents. During the 1990s, a third major upgrade was carried out, enabling the facility to serve approximately 800,000 residents across 11 municipalities in the Haifa region.

The project represents a continuous and phased development of national infrastructure, addressing population growth and increasingly stringent environmental requirements.

🟦 Balasha Jalon’s Role
Balasha Jalon Infrastructure Systems Ltd. carried out the preliminary and detailed design for the second and third upgrade phases of the WWTP, including civil, mechanical, electrical and control engineering. In addition, the company provided construction supervision throughout the implementation stages.

🟦 Engineering Challenges
The project presented several key challenges:
• Significant capacity expansion of an existing operating facility
• Integration of new systems within an active plant
• Compliance with stringent regulatory requirements
• Maintaining continuous operation during upgrade works

🟦 Balasha Jalon’s Solution
The solution was based on a phased and integrated design approach, including:
• Gradual expansion of treatment systems בהתאם לגידול האוכלוסייה
• Integration of advanced liquid and sludge treatment technologies
• Optimization of resource utilization and environmental performance
• Design ensuring reliable operation and long-term maintainability

🟦 Project Components – Liquid Treatment
Process Technology:
Activated sludge (B.N.R)

Main Components:
• Three Archimedean screw pumps (2.4 m diameter)
• Screens
• Grit removal systems
• Primary sedimentation tanks
• Aeration basins with surface aerators
• Clarifiers
• Reuse of treated effluent for agricultural irrigation

🟦 Project Components – Sludge Treatment
Process Technology:
Anaerobic digestion and sludge dewatering

Main Components:
• Seven belt filter presses
• Eight anaerobic digesters (approx. 3,700 m³ each)
• Gas mixing system within the digesters
• Nine centrifuges for dewatering digested sludge
• Biogas utilization for electricity generation
• Two generators with a capacity of approximately 1,300 kW each

🟦 Key Design Parameters
• Average design flow: 120,000 m³/day
• Average BOD load: 69,000 kg/day
• Effluent quality: 15/15/10 (BOD / TSS / N)