System in a facility for energy recovery in water treatment, especially in desalination of seawater.

摘要

An installation system for recovering energy in water treatment, especially in desalination of seawater.; In a system of a facility for energy recovery in water treatment, especially in desalination of seawater, conducted on the principle of reverse osmosis, in which a stream of high pressure water is fed to a reverse osmosis unit and is separated into pure water without pressure (permeate) and a concentrate having approximately the inlet pressure, advantage concentrate for energy recovery, wherein the liquid, which is fed as a stream of water at low pressure, divided before the pressure increase, then being increased pressure a first partial stream of water to the system pressure or high pressure and behaving a second partial stream of water until a system pressure exchange "PES", in that an exchange of the water flow at low pressure with a stream of high pressure water entering the concentrate is made from the uni ity reverse osmosis unit expansion osmosis unit coupled to the reverse osmosis system and connected pressure exchange PES through an outlet pipe having a device for increasing pressure is arranged.