Purification plant, for treating water to produce salts, has gravity flow through channel with twelve different pollutant removal operations, prior to final evaporation stage

摘要

Water purification plant comprises a conical tower the height of a building with a central duct through which the polluted water is pumped to the top and then allowed to flow by gravity down a spiral outer channel in which it is subjected to twelve different treatments to retain materials suspended in it. The outflow at the bottom of the tower passes over a surface (2) with a small angle of inclination where it is evaporated to leave pure salt at the bottom (7). Water purification plant comprises a conical tower (1) the height of a building with a central duct through which the polluted water is pumped to the top and then allowed to flow by gravity down a spiral outer channel in which it is subjected to twelve different treatments to retain materials suspended in it, including: adsorption, absorption, aerobic and anaerobic biodegradation, extraction, oxidation by air, oxidation by photolysis and photocatalysis by solar rays, by UV rays from electric lamps and by laser beams, and separation of metabolites. At the top of the tower, the water has to pass through a porous wall with a porosity of 20 - 30 %, enhanced by laser perforation of holes measuring 30 - 50 Microm, spaced at 500 Microm intervals. The outflow (4) at the bottom of the tower passes over a surface (2) with a small angle of inclination where it is evaporated to leave pure salt at the bottom (7).