Schwebefilteranlage zur Trinkwasseraufbereitung

摘要

The invention relates to an upflow sludge blanket filtering plant for separating particulate impurities from the raw water being treated. The inventive filtering plant has a reactor vessel (10) with a raw water supply channel (11) situated in the base area and a sludge drainage channel (17) situated at a distance from the base of the reactor vessel (10), by which means sludge which collects in the base area of the reactor vessel can be drained from the reactor vessel (10). The reactor vessel (10) also has a clarified water channel (14) in the top area, by which means the water from which the particulate impurities have essentially been separated can be drained from the reactor vessel. The invention is characterised in that a device (15) for draining water which may still contain some impurities from the reactor vessel (10) and for conducting a partial flow back into the raw water supply channel (11) is located between the sludge drainage channel (17) and the clarified water channel (14). This prevents the construction-related technological shortcomings of known plants from arising and enables the throughflow capacity of the water plant to be increased to its full potential of 100 %.