Patent ID: 11938426
Assignee: O.M.IT S.R.L.
Field: Chemical engineering (Chemistry)
Classification: CPC B  Y | IPC B

Claim 16:
17. The method according to claim 16, wherein the height difference between the liquid and the filtered liquid across the liquid-permeable filtering element is caused by means configured to sustain the height difference and selected from a group consisting of:
a pipe configured to serve as a weir for the filtered liquid;
a wall configured to serve as a weir for the filtered liquid;
a proportionate flow valve configured to release filtered liquid to control a filtrate level of the filtered liquid;
a pump configured to pump out the filtered liquid to control the filtrate level;
a submersible pump configured to pump out the filtered liquid to control the filtrate level; and
a stepped suction tube arrangement which depends from a suction pump to control the filtrate level.