DEVICE FOR TREATMENT OF WATER TO BE PURIFIED, NAMELY FRESH WATER, SALT WATER OR BRACKET WATER, IN PARTICULAR FOR DESALINATION OF WATER TO BE PURIFIED; REVERSE OSMOSIS UNIT FOR TREATMENT OF WATER TO BE PURIFIED, NAMELY FRESH WATER, SALT WATER OR BRACK WATER, IN PARTICULAR FOR DESALINATION OF WATER TO BE PURIFIED; PROCESSES FOR TREATMENT OF WATER TO BE PURIFIED, NAMELY FRESH WATER, SALT WATER OR BRACKET WATER, IN PARTICULAR FOR DESALINATION OF WATER TO BE PURIFIED

摘要

The present document proposes a device for treating water (3) that is to be cleaned, namely fresh water, salt water or brackish water, in particular for desalination of water (3) that is to be cleaned, a reverse osmosis unit for treating water (3) that is to be cleaned, namely fresh water, salt water or brackish water, in particular for desalination of water that is to be cleaned, and a method for treating water that is to be cleaned, namely fresh water, salt water or brackish water, in particular for desalination of water (3) that is to be cleaned, wherein at least one filter is used to produce filtered water (10) or high-purity water (5) (e.g. drinking water), wherein at least one filter is a filter unit (2) which, in order to produce filtered water (10), is traversed in the flow direction by the water (3) that is to be cleaned and/or by filtered water (10), and in which filter unit, in order to achieve at least partial cleaning, by means of which the filter unit (2) is flushed of residues using a liquid, the flow direction within the filter unit (2) can be reversed, and/or at least one filter is a gas bubble filtration tank (18) which can be traversed by a gaseous medium in order to pre-clean the water (3) that is to be cleaned for the production of filtered (pre-cleaned) water (10), and/or at least one filter is a reverse osmosis unit (1) which, for the production of high-purity water (5), is traversed in the flow direction by the water (3) that is to be cleaned and/or by filtered water (10), and which has at least one osmosis membrane (14) which is surrounded by a pressure tank (24).