Desalination plant for distilled water and salts recovery - reduces considerably the ratio of energy required to water produced

摘要

For the recovery of salts and water from aq. solns., the soln. for treatment is compressed, preheated with water vapour and freed from salts with a negative solubility gradient by heating with steam. The soln. is then detented with the generation of steam, and from the remaining highly concentrated brine, one or more salts having positive solubility gradients are separated out, wholly or partly by crystallisation and vapourisation. All conventional methods using detenting-vapourisation and negative solubility required a large amt. of energy. This process reduces the energy consumption, whilst using the simplest equipment, by 10-30% per cubic metre of water.