Desalination plan of Bandar Abbas

The above partnerships have established joint-stock companies for desalination of sea water along the coast of the Persian Gulf and transfer of fresh water to industrial complexes located in Kerman and Yazd provinces, 800 km away from the desalination plant and drinking water consumption in Hormozgan province.

The route of the Persian Gulf water transmission line and the location of industrial complexes

Bandar Abbas desalination project is the largest desalination plant under construction in Iran with the aim of producing fresh water with a capacity of one million cubic meters of fresh water per day using the SWRO method (reverse osmosis is a modern seawater desalination technology) from seawater for consumption. Drinking and Industrial is based on three shifts of 8 hours and 345 working days in a land of 155 hectares in Bandar Abbas. Some of the important benefits of implementing this project can be the supply of drinking water and industry through desalination of sea water and help to the growth of industry in the low water provinces of the country (Hormozgan, Kerman and Yazd provinces), especially the supply of water needed for the construction of large units. Among others, in the sectors of industries, mining and steelmaking in Hormozgan, Kerman and Yazd provinces and increasing economic prosperity in these areas. Also, other advantages of this project are access to raw materials (sea water) that are accessible, free, reliable and inexhaustible, and complete familiarity with the production process of desalination units and the implementation of similar projects in other parts of the country. On the other hand, the main consumers of produced water of this project are as follows:

Drinking and industrial consumption in Hormozgan province
Gol Gohar Mining and Industrial Company
Sarcheshme copper company
Chadormelo complex

The main consultants and contractors of Bandar Abbas desalination project are:

Project consultants: ILF Austria – Pars Geometry (co-consultant) – Middle East water and environment – Setara Sanat Pardazan – Sanat Iranian Consulting Engineers – Khorasan Power Consulting Engineering Company (MONIRAN)

Project contractors: participation of Sazeh Sazan / Mahtab Gostar – participation of Ronin / Samarah / Fidarmiab / Raad Ab South – General Directorate of Soil Technical and Mechanics Laboratory – Sahil Consulting Engineers – Blandpayeh Company – Sahil Consulting Engineers – Tehran Geotechnical Company – Tadbir Novin Sazan Company – Iran Offshore Industries Company (Saf) – Sulzer Company – Bilfinger Company – NIPEC Company – Amin Design, Supply and Construction Company (EPCF AMIN)

The plan of Asia Water Development Engineering Company to produce fresh water from sea water in three implementation phases is as follows:

• Zero phase:
  Construction of ancillary facilities including the following items to supply water needed for water desalination at the rate of one million cubic meters per day and other required infrastructures:
  Construction of the water intake structure: The water intake includes a suction chamber, a water intake basin, a pumping station and a chlorination unit, and the capacity of the basin is about 4.5 million cubic meters per day.
  Construction of marine equipment and drainage pipes: This stage includes 5 HDPE pipelines with a diameter of 2.5 meters and drainage will be done by Suction Chamber. For this purpose, according to the existing standards as well as the field investigations, the appropriate depth for harvesting water with the required parameters (including TDS, salinity and appropriate temperature) (minus ten meters compared to CD) (minimum height of sea water from the bottom, which is every 19 It happens once a year) that this depth can be reached within 1.2 km from the coast of the region.
  Construction of mechanical water catchment equipment: Due to the low quality, high turbidity and high suspended and colloidal substances of sea water, a series of pre-treatment processes are needed. The purification process will be done in 3 stages as follows:
  First stage: In this stage, aquatic animals, corals, etc. are prevented from entering the pipeline and water intake basin.
  Second stage: In this stage, the separation treatment is done by bar filters (Bar Screen) and the entry of suspended particles larger than 80 mm into the pumps is prevented.
  Third stage: Band screen filters are used in this stage and suspended particles larger than 3 mm are prevented from entering the pumps.On the other hand, in order to prevent the entry of aquatic animals and the growth of algae in the system of pipelines and catch basins and related equipment, a sodium hypochlorite production unit has been considered.Seawater pumping: In this step, the water is sent from the aquifer to the desalination unit (RO).
  Effluent discharge: All the return salt water from desalination is mixed in the Weir Box structure and transported by 4 HDPE pipelines with a diameter of 2.5 meters to a depth of 10 meters in the sea and distributed through the Diffuser system.
  General works of the site: Executive works of the site include landscaping, directing surface water, grading, construction of protective walls, construction of water and sewage facilities, etc. is.
  Public buildings: including substation buildings, office buildings, clinics, mosques, restaurants, etc.
  Electricity distribution network: includes the purchase and installation of transformers, diesel generators, cables, panels and LV and HV buildings.
  Piping: It includes piping between different units as well as supply and installation of valves.
  Water tanks: to store water with a capacity of 400 thousand cubic meters after desalination.
  First phase :
  Supply and desalination of Persian Gulf water in the amount of 550 thousand cubic meters per day in the form of two units of 200 thousand cubic meters and one unit of 150 thousand cubic meters by BOO investor contractors
  Construction of the first phase of the power plant with a capacity of 250 MW.Before the water enters the desalination unit, pre-treatment to protect the reverse osmosis unit and prevent the deposition of dissolved solids on the surface of the membrane (scale), the accumulation of suspended and colloidal particles on the surface of the membrane (fouling) and biological pollution caused by Microorganisms grow on the surface of the membrane (Bio Fouling).In the reverse osmosis desalination stage, high-pressure pumps (between 40 and 60 bar) pump the pre-purified water into the modules that are divided into two parts by a semi-permeable membrane. The membrane allows the flow of water to pass through and prevents the passage of salt particles. In this way, the water that passed through the membrane is desalinated and the concentrated salt behind the membrane is removed from the module by passing through a pressure control valve.Simultaneously with the first phase, the power plant will provide electricity for desalination units with a cumulative capacity of 200 megawatts, water catchment electricity for 30 megawatts and pumping station electricity for 20 megawatts.
  The second phase:
  Capacity increase by 200 thousand cubic meters per day
  third phase:
  Capacity increase by 250 thousand cubic meters per day
  Construction of the second phase of the power plant and increasing the capacity up to 500 megawatts according to the needsInvestment volume of phase zero and one:

  Phase zero and one of the Bandar Abbas desalination project with an investment volume of 363 million Euros plus 7,245 billion Rials is being implemented. (The total amount of investment is equal to 21,770 billion Rials)

  The capacity of 550 thousand cubic meters per day in the form of two units of 200 thousand cubic meters and one unit of 150 thousand cubic meters with an estimated investment volume of 325 million euros will be implemented by BOO investor contractors.
  The construction of additional facilities and infrastructures needed to supply the water needed for water desalination is estimated to be 550 thousand cubic meters with an investment volume of 38 million euros plus 7,245 billion Rials, of which 16 million euros plus 3,873 billion Rials will be provided by Asia Water Development Engineering Company and 22 million Euros plus 3,372 billion Rials will be provided by contractors.