Abstract: Membrane filter system having at least one vessel and plurality of individually removable aerated filter modules arranged in the at least one vessel and structured and arranged for a suspension to be filtered to flow through in parallel. At least one filter module has a plurality of membrane units. A plurality of spaces are formed in the at least one vessel by plates arranged cross-wise with respect to a direction of flow through the filter modules. At least one feed space for a common supply of the suspension to be filtered to the plurality of filter modules and at least one permeate space for common discharging of permeate are provided. A feed pump supplies the suspension to be filtered into the at least one feed space. At least one feed distribution space is positioned laterally at least partially around the at least one feed space. Additionally, the at least one feed space has a feed distribution opening and an aeration device around which the suspension to be filtered flows.

Abstract: The invention provides a filter system for water or wastewater, comprising at least one vessel in which there are arranged aerated filter modules (7), at least one feed space (13) being provided for the simultaneous feed of suspension (10) that is to be filtered to the filter modules (7). What is new is that there is a feed distribution space (12), through which suspension (10) that is to be filtered is introduced into the feed space (13), the feed distribution space (12) leading laterally part way around the feed space (13). As a result, less space is required below the filter modules for supplying the suspension.