Liquid purification or separation – With means to add treating material – Spaced along flow path
Reexamination Certificate
2007-01-09
2011-11-01
Nguyen, Nam (Department: 1778)
Liquid purification or separation
With means to add treating material
Spaced along flow path
C210S202000, C210S207000, C210S257100, C210S258000, C210S261000
Reexamination Certificate
active
08048298
ABSTRACT:
Plant comprising a homogenization tank (100) equipped with a stirrer (120) and with a pumping unit (140), a connecting pipe (300) leaving the pumping unit (140) comprising an injector of reagents (310) and a static mixer (320), a second chamber (200) surmounted by a mixing tank (210) into which the connecting pipe (300, 320) opens tangentially and comprising a flocculation pan (220) above the sludge pit (230) and surmounted by a filtration chamber (240), a pipe (270) leading down to the bottom (222) of the flocculation pan (220) and a bypass pipe (160).
REFERENCES:
patent: 2366898 (1939-12-01), Gurney
patent: 5407584 (1995-04-01), Broussard, Sr.
patent: 2004/0025961 (2004-02-01), Beaulieu
patent: 2810310 (2001-12-01), None
patent: WO01/40121 (2001-06-01), None
English translation of the Written Opinion of the International Search Authority (Form PCT/ISA/237).
Baker & Daniels
Nguyen Nam
Stelling Lucas
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