Argel Ouest Argelia

Customer

Tedagua

Country

Alger

Year

2019

Category

Tender

Description

ALGER OUEST CONSTRUCTION AND OPERATION OF A SEAWATER DESALINATION PLANTA (ALGER)

Production capacity

300.000 m3/j of Marketable Water

Characteristics

Processing line formed by; Seawater intake by open intake, Reagent injections (sodium hypochlorite), Seawater intake, filtering station and pumping station, Pressure filtration – 1st stage, Pressure filtration – 2nd stage, filter washing, Storage of brine used for backwashing of filters, Reagent injections (sulfuric acid, ferric chloride, sodium hydroxide, precipitation inhibitors and sodium bisulfite), Cartridge filters, High pressure pumping system for feed reverse osmosis membranes, Energy recovery (isobar chambers), Reverse osmosis, Equipment for chemical cleaning and post-service rinsing of reverse osmosis membranes, Remineralization of desalinated water by filtration in calcite chambers and injection of CO2, Dosing stations for chemical reagents in the post-treatment phase (sulfuric acid, sodium hydroxide and sodium hypochlorite), Treated water tanks, Treated water pumping station to the mixing tank, Treatment of effluents (Neutralization and pouring of chemical washings (CIP) of RO and washing water from calcite filters, Treatment of first-stage filtration sludge, including lamellar settling, thickening and dehydration), Discharge of brine and other effluents from the plant, Auxiliary services, Electrical installation, Control system.

 

Scope

  • General Description of the Plant
  • Breakdown of the Plant into units, unit and Plant capacities
  • Detailed technical description of the industrial process
  • Description and detailed technical parameters of each system and plant equipment
  • Ground plan and preliminary layout of the works and equipment of the Plant
  • Description and layout of buildings (electrical substation, production building, administrative building, repair workshop – storage warehouse, spare parts, etc.)
  • Preliminary piping and instrumentation diagrams (P&ID) of all Plant systems
  • Single line electrical diagrams
  • Electrical substation: configuration, equipment parameters
  • Control – Command system: type, description, architecture, preliminary operating logic diagrams
  • All calculation notes relating to the engineering and design of the Project as well as the associated chemical assays
  • Consumption of electrical energy by system and overall of the Plant (Specific consumption of the Plant (kWh / m3) with a detailed electrical balance of the Plant)
  • Number of equipment to be installed, spare equipment and, if applicable, stored equipment