Water e.g. karst water, analyzing method for determining content of dissolved pollutants, involves circulating mixture of treated water and cleaning solution against current in fibers to maintain filtration flow at greater value

摘要

The method involves filtering water across a filtering medium i.e. filter mass (3), constituted by flexible hollow fibers, according to a filtration flow. Periodical micro-retrowashing of the fibers is performed, and continuous measurement of content of dissolved pollutants is maintained during micro-retrowashing which is performed by circulating treated water against current in fibers during a determined period. Mixture of treated water and cleaning solution is circulated against current in the fibers to maintain filtration flow at a value greater than a preset minimal threshold flow value. An independent claim is also included for an installation for implementing a method for analyzing water to determine content of dissolved pollutants.