The scope of work included different solutions for plant capacities of 80 and 120 MGID. For these solutions, the work performed included verification of the suitability of the former pumping station of the preexisting plant (which had been demolished) for the new desalination plant, design of the discharge chamber, and design of the discharge pipelines considering different discharge points (coastal, offshore, or a combination of both).
The final proposals were as follows:
. For the 80 MGID alternative: verification of the preexisting pumping station, design of a circular discharge chamber, and design of the coastal discharge using two HDPE pipes with an outer diameter of 1,800 mm – SDR 30 (L = 2 x 2,210 m) discharging at the location of the hydraulic weir of the former plant.
. For the 120 MGID alternative: verification of the preexisting pumping station, design of a rectangular discharge chamber whose hydraulic weir allows the discharge system to distribute the reject flow through the preexisting drain to the coast and to open sea through a new discharge pipeline designed in GRP along the land section (inner diameter 1,800 mm – L = 2,270 m) and in HDPE in the submarine section (outer diameter 1,600 mm SDR 26 – L = 3,500 m).
