摘要 |
<p>A filtration device intended for obtaining filtrate from wastewaters is characterized by a rotor system (2) that can be rotatably driven about a horizontal axis (5) within a liquid bath in a tank (1), said rotor system being used as a support of multiple arrangements (17) of filtering disks, the inner chambers of which are connected to the suction side of a pump (39) via a collecting chamber (29). Liquid to be filtered is fed by means of a pump (40) that is connected to multiple distributing lances (35) via a line (31) while interposing a prefilter (41) intended for separating a coarse fraction, said lances extending parallel to and in the vicinity of the hollow shaft (21) that supports the rotor system (2). As a result of centrally introducing the prefiltered liquid along the length of the rotor system (2) via the distributing lances (35) in a uniformly distributed manner in connection with a network (36) of lines that are intended for introducing air bubbles into the liquid bath, said network being located at the bottom of the tank (1), a stable operation results that suppresses the formation of deposits and thus yields a high, uniform filtering performance.</p> |