Sewage Treatment Plant for Cities of the Jezreel Valley
The Project initiated, designed and managed by the Pilgei-Maim, within the general framework of cooperation with different municipalities in Jezreel Valley, on different projects.
Goals for the project:
- Identification of sources of wastewater and effluents in the Jezreel Valley.
- Creating a regional solution for all sewage flowing into the valley.
- Construction of wastewater treatment plants to obtain the quality of the effluents required to enter the main reservoirs.
- Utilizing existing irrigation water reservoirs for both containment and treatment of the effluents.
- Implementing the plan by the shortest schedule possible.
- Cooperating with several municipalities to implement each of the sewage treatment plants.
- Locating optimal locations for construction of each sewage treatment plant.
- Reducing costs to the municipalities (the sewage sources) in order to make it easier for them to contribute to the project.
- increase system reliability by Reducing operating costs.
- Managing sewage flow to the reservoirs in order to reach the required settling time.
- Establishing a management and operation company for the entire system.
- Constructing a control system to manage the flow.
Stages of the project:
1990 – Planning stage – Presentation of master plan.
1992 – Completion of master plan. Beginning preparation of detailed plan.
1993 – Construction of the Tel-Adashim plant.
1995 – Beginning operation of the Tel-Adashim sewage treatment plant. Construction of the Ramat-Yishai sewage treatment plant.
1996 – Beginning operation of the Ginnegar plant – laying of first section.
1998 – Beginning operation of the Ha’Solelim plant.
1999 – Beginning operation of the Yokneam plant, operation of the Dovrat plant, and completion of pipeline segments.
2000 – Opening the pipe-line from Tel-Adashim to Yokne’am.
2001-2003 – Addition of sub-sectors to the main pipe-line.
2005 – Laying of the Israel Electric Company line connecting the sewage treatment plants to power.
2006 – Laying the section connecting Tel-Adashim pipe-line to Dovrat, completion of the. Zarzir sewage treatment plant, completion of the Ma’ale-Iron facility.
2008 – Installation of connection to the Alon-Tavor combined-cycle power plant project.
2010 – Construction of Ha’Sargel reservoir and connection to Ha’Sargel pipe-line.
Main sewage sources
Nazareth, Nazareth Illit, Migdal HaEmek, Yokneam, Ramat Yishai, Tivon, Jezreel Valley, Ilut, Reina, Ein Mahal Iksal, Nin, Maale-Iron, Megiddo Regional Council and Alon-Tavor “Tnuva” Dairy factory.
*Amount of wastewater as at 2015 is 17 million m3/year.
Active sewage treatment plants:
|Name||Daily flow (m3/day)||Annual flow (m3/year)|
|Yokneam, Tivon and Ramat-Yishai||7,200||2.6|
|Zarzir, Ma’ale-Iron, Ha’yogev||2,600||1.0|
|Tnuva Dairy Factory||3,600 (ביום עבודה)||1.0|
Consumers of primary wastewater (for irrigation):
- Jezreel Valley Water Association
- Lower Galilee Water Association (“Mei Galil Tahton”)
- Israel Electric Company
- Tel-Ad (Tel Adashim) water association, Gazit water association, and others.
*40 reservoirs are connected to the project.
- High quality effluents can be achieved, even with simple aeration pools.
- It is possible to establish systems which provide an advantage to both the wastewater source (i.e. A city) and wastewater consumers (i.e. Farmers) without harming the environment.
- Large systems, which are beneficial to both sides, can be well-funded when established in cooperation with many authorities and many farmers, provided that there is an administrative and coordinating system
- Semi-intensive treatment facilities can function as planed for many years.
- The amount of sludge accumulating in the facilities and the filtering rate are lower than expected.
- Suspension of effluent a reservoir for at least 30 days drastically reduces the amount of pollutants.
- Existing control systems make it possible to operate large systems, which can include several treatment facilities and dozens of reservoirs
- The Jezreel Valley Water AssociationMei Galil Tahton water association Israel's Electric CompanyTel-Ad Association (Tel Adashim)Gazit