Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2005-05-10
2005-05-10
Hopkins, Robert A. (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S151000
Reexamination Certificate
active
06890439
ABSTRACT:
A filtration bed support for biolytic filtration wherein the filtration bed comprises a bed of solids in various stages of decomposition ranging from raw unprocessed organic material on the surface of the bed to fully decomposed humus which forms the bulk of the bed. The bed is kept from blocking by living organisms. The support comprises a three dimensional humus matrix lattice.
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patent: 4005010 (1977-01-01), Lunt
patent: 4195043 (1980-03-01), Foote et al.
patent: 5389248 (1995-02-01), Pare et al.
patent: 5500112 (1996-03-01), McDonald
Dowmus Pty. Ltd.
Hoffman Wasson & Gitler, P.C.
Hopkins Robert A.
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