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Haifa Region Association of Towns - Sewerage

The Association is responsible for the collection and treatment of wastewater from the cities of Metropolitan Haifa and nearby localities.

Wastewater treatment and purification

The plant treats approximately 100,000 m³ of wastewater each day using advanced treatment processes.

Effluent recovery for crop irrigation

Annual savings of 38,000,000 m³ of water in Israel's water economy

Production of electricity

The plant generates electricity from biogas produced in the sludge digestion process

Wastewater collection system

The wastewater collection system consists of 100 km of sewage collector lines and 46 pumping stations

Watch a video clip about the plant

Take a look at this video clip that illustrates the processes operated by the Association
  1. Construction of the wastewater treatment plant

    The Haifa Regional Wastewater Treatment Facility originally constructed in 1961 was the first established in Israel.

    The Haifa Regional Wastewater Treatment Plant, which was originally constructed in 1961, was the first of its kind established in Israel.

    The wastewater was treated biologically and was based on a trickling filter and sludge treatment method. The plant was planned at first to serve a population of up to 225,000 and was therefore designed to handle about 30,000 m³ wastewater per day. The plant’s biological filtration beds, sludge digester tanks and sludge drying beds can be seen in this picture.

  2. Expension of the Wastewater Treatment Facility

    In the mid-1970s, the facility was expanded to serve a population of up to 550,000.

    The facility was thus designed to receive wastewater at an average flow rate of 80,000 m³ per day. A more advanced activated sludge biological  treatment system was also added.

  3. Additional expansion and upgrade operations

    As its service population grew and demands were made for more advanced treatment of wastewater, further activities were undertaken in 1994 to expand and upgrade the facility.

    These upgrade activities included transition to the treatment of all the wastewater using the activated sludge method and an increase in the average design flow rate to 120,000 m³ per day.

  4. End of expansion operations

    Most of the expansion works for the facility [based on the 1994 expansion plan] were concluded in 2002 at a total cost of about NIS 170 million.

    The association is currently preparing for an additional upgrade of the facility in order to comply with new more stringent requirements for effluent quality demanded from treatment facilities in Israel.

  5. The plant in 2018

    Regulations governing the quality of effluents and sludge have been tightened. As a result, the Association has begun an additional upgrade of the plant in order to produce effluents at a tertiary level of quality. The plant upgrade will include the construction of the following installations: coarse and fine pre-filtration units, sand removal units, an odor control installation, an effluent filtration installation, an effluent disinfection installation and an additional biological wastewater treatment module.

    Following the upgrade, the effluents will conform to all quality requirements for unlimited irrigation.

  • 1961
  • 1975
  • 1994
  • 2002
  • 2018

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    residents receive services from the Association


    of sewage collector lines and 46 pumping stations discharge wastewater into the treatment plant


    of effluents are sent to irrigation in the Jezreel Valley


    of effluents each year are sent to crop irrigation

    Wastewater Treatment Plant

    Stages of wastewater treatment

    The diagram shows the stages according to which wastewater is treated at the Association until reaching its final product in the form of effluents and compost.

    Local authorities served

    The Association provides a range of wastewater treatment services to 11 cities and regional councils in the Metropolitan Haifa region

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