Patent ID: 6521126
Filing Date: 2003-02-18
Classification: B01D

Abstract:
A liquid filtration system comprising:a vertical pipe gallery comprising an exterior peripheral wall and an upper chamber, a backwash waste chamber, and a lower chamber within the peripheral wall; a plurality of filter influent pipes connected to the pipe gallery in fluid communication with the upper chamber; a gallery influent line connected to the pipe gallery in fluid communication with the upper chamber; a plurality of secondary pipes connected to the pipe gallery in fluid communication with the backwash waste chamber; a backwash drain line connected to the pipe gallery and in fluid communication with the backwash waste chamber; a plurality of filter effluent pipes connected to the pipe gallery in fluid communication with the lower chamber; a gallery effluent line connected to the pipe gallery in fluid communication with the lower chamber; and a plurality of filter cells each comprising a top chamber in fluid communication with one of the filter influent pipes and with one of the secondary pipes, and a bottom chamber in fluid communication with one of the filter effluent pipes.