A filtration process for obtaining a filtered liquid and slurrifying a filter cake, and the process is comprising the following steps: a) Bringing a liquid-containing-solids into a filter system through an inlet or outlet aperture for liquid-containing-solids, wherein the filter system consists of a housing, for obtaining a filtered liquid and slurrifying a filter cake and wherein the housing comprises said aperture for liquid-containing-solids or slurrifying liquid, a filtrate discharge outlet of filtered liquid, and a slurry discharge outlet suitable for discharging a slurry, and characterized in that i) the housing of the filter system comprises a slurrification section and at least one filter element having two sides wherein one side allows building up a filter cake and another side allows contact with filtered liquid, and a connection between the at least one filter element and the filtrate discharge outlet, wherein the inlet or outlet aperture is located below said at least one filter element, and ii) the slurrification section comprises the slurry discharge outlet, the inlet or outlet aperture, at least one nozzle for steam or gas injection, and, optionally, a regulating aperture that is configured to regulate the quantity of a slurrifying liquid in the slurrification section; b) Separating the liquid-containing-solids into a filtered liquid and a filter cake containing the solids, and c) Discharging the filtered liquid through the connection to the filtrate discharge outlet, d) Providing through the inlet or outlet aperture and/or, optionally, the regulating aperture a slurrifying liquid in the slurrification section after steps a) to c) or the repetition of steps a) to c) are/is stopped, e) Dropping the in step b) formed filter cake into the slurrification section that contains the slurrifying liquid from step d), f) Making in the slurrification section a slurry of the filter cake with the slurrifying liquid, by injecting steam or gas through said at least one nozzle, g) Discharging the slurry from the slurrification section through said slurry discharge outlet. a) Bringing a liquid-containing-solids into a filter system through an inlet or outlet aperture for liquid-containing-solids, wherein the filter system consists of a housing, for obtaining a filtered liquid and slurrifying a filter cake and wherein the housing comprises said aperture for liquid-containing-solids or slurrifying liquid, a filtrate discharge outlet of filtered liquid, and a slurry discharge outlet suitable for discharging a slurry, and characterized in that i) the housing of the filter system comprises a slurrification section and at least one filter element having two sides wherein one side allows building up a filter cake and another side allows contact with filtered liquid, and a connection between the at least one filter element and the filtrate discharge outlet, wherein the inlet or outlet aperture is located below said at least one filter element, and ii) the slurrification section comprises the slurry discharge outlet, the inlet or outlet aperture, at least one nozzle for steam or gas injection, and, optionally, a regulating aperture that is configured to regulate the quantity of a slurrifying liquid in the slurrification section; i) the housing of the filter system comprises a slurrification section and at least one filter element having two sides wherein one side allows building up a filter cake and another side allows contact with filtered liquid, and a connection between the at least one filter element and the filtrate discharge outlet, wherein the inlet or outlet aperture is located below said at least one filter element, and ii) the slurrification section comprises the slurry discharge outlet, the inlet or outlet aperture, at least one nozzle for steam or gas injection, and, optionally, a regulating aperture that is configured to regulate the quantity of a slurrifying liquid in the slurrification section; b) Separating the liquid-containing-solids into a filtered liquid and a filter cake containing the solids, and c) Discharging the filtered liquid through the connection to the filtrate discharge outlet, d) Providing through the inlet or outlet aperture and/or, optionally, the regulating aperture a slurrifying liquid in the slurrification section after steps a) to c) or the repetition of steps a) to c) are/is stopped, e) Dropping the in step b) formed filter cake into the slurrification section that contains the slurrifying liquid from step d), f) Making in the slurrification section a slurry of the filter cake with the slurrifying liquid, by injecting steam or gas through said at least one nozzle, g) Discharging the slurry from the slurrification section through said slurry discharge outlet.