Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2007-11-13
2007-11-13
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S712000, C210S721000, C210S768000, C210S688000, C210S723000, C210S748080
Reexamination Certificate
active
10824505
ABSTRACT:
This metal containing waste water treatment method introduces a metal containing waste water from above into a submerged membrane separation tank1in which a reaction section2, a submerged membrane section3having a submerged membrane5and a precipitation section4are arranged in order from top to bottom, causes a reaction by adding a pH adjuster to the reaction section2, subsequently separates water from metal by the submerged membrane5of the submerged membrane section3and subsequently precipitates and concentrates the metal in the precipitation section4. As described above, according to this treatment method, the pH adjuster is added to the reaction section2, and therefore, solid-liquid separation can be effected by the submerged membrane5with a hydroxide formed. Moreover, the metal can be precipitated and concentrated by the action of gravity without using energy in the precipitation section4.
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Chujo Kazumi
Ishibashi Hiroyuki
Yamasaki Kazuyuki
Barry Chester T.
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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