NOVELTY - Separating dry matter from medium involves separation chamber (1) at least partly defined by rollers; arranging filter unit such that a filter cake passes between at least one set of rollers (2, 7), a rollers consisting of pore roller and one other roller; contacting the filter unit with suspension of dry matter and medium; obtaining a filter cake; and passing the filter unit and filter cake through the set of rollers, where medium is separated from the filter cake; optionally removing filter cake.    USE - For separating dry matter from a medium (claimed); also useful in industry of producing food, feed and beverages; in the manufacture of juice, winemaking industry; for separation of bacteria or fat from raw milk, and for remove water, dry matter, and germs from fermenting liquids and nitrate, bacteria and/or ochre from drinking water; in the eatable oil industry; for separating dry matter from air or a gas; in the cosmetics industry for the removal of impurities from cosmetic products, such as soap, make-up and moisturizers; in the automatic coffee machine; in floor cleaning machines. Also apparatus used for sludge treatment; and is applied to the paper and pulp industry.    ADVANTAGE - The method has ability to provide a suspension to separation/filtering method in a continuous manner; and provides improved filtering method and system.    DETAILED DESCRIPTION - Separating dry matter from medium involves separation chamber (1) at least partly defined by several of rollers (2, 7), where chamber is capable of being pressure regulated, and where at least one of rollers is a pore roller having a surface with pores allowing permeability for medium and further having at least one channel in fluid contact with the pores of the surface; arranging at least one filter unit such that a filter cake passes between at least one set of rollers, a rollers consisting of a pore roller and one other roller; establishing a pressure difference across the at least one filter unit; contacting the at least one filter unit with a suspension of dry matter and medium accumulating dry matter on the at least one filter unit; obtaining a filter cake on filter unit; and passing the at least one filter unit and filter cake through the at least one set of rollers, where medium is separated from the filter cake; optionally removing filter cake. The method involves the at least one filter is re-contacted with the suspension; at least two separation chambers, such as at least three separation chamber. An INDEPENDENT CLAIM is included for apparatus for the separation of dry matter from a medium comprising a separation chamber; at least one filter unit arranged such that it passes between at least one set of rollers consisting of a pore roller and one other roller; means for establishing a pressure difference across the at least one filter unit; means for contacting at least one filter unit with a suspension of dry matter and medium; and means for passing the at least one filter unit and filter cake through the at least one set of rollers; optionally means for removing filter cake.    DESCRIPTION OF DRAWING(S) - The figure shows the pressure chamber.    Pressure chamber (1)    Roller (2, 7)    Filter (3)    Outlets (5)    Scraper. (6)