Biofilter

Details Biofilter Biofilter

1995-09-26

1997-03-11

Walker, W. L.

Liquid purification or separation

With gas-liquid surface contact means

210151, 4352971, 4352991, B01D 35027

Patent

active

056097530

ABSTRACT:
A biofilter has a plurality of filter elements each of which has a filter medium of fragmented plastic, preferably waste plastic. The fragmented plastic has an inherent curvature to maintain adjacent surfaces of the fragment plastic in spaced relationship. The filter elements are arranged in filter modules in series with the effluent flow with the longitudinal axes of filter elements of adjacent filter modules disposed orthogonally.

REFERENCES:
patent: 4670149 (1987-06-01), Francis
patent: 4680111 (1987-07-01), Ueda
patent: 4908128 (1990-03-01), Chiba
patent: 4985182 (1991-01-01), Basse et al.
patent: 5168058 (1992-12-01), Bohak et al.
patent: 5194231 (1993-03-01), Gough et al.
patent: 5256570 (1993-10-01), Clyde

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