Bacteria supporting medium, especially useful for pretreatment o

Details Bacteria supporting medium, especially useful for pretreatment o Bacteria supporting medium, especially useful for pretreatment o

1994-01-21

1996-03-19

Wyse, Thomas

Liquid purification or separation

With gas-liquid surface contact means

2104934, 210496, C02F 310

Patent

active

055001114

ABSTRACT:
A bacteria-supporting medium of synthetic resin has a spiral shape with a relatively small pitch, and comprises plural S-shaped portions continuous with each other and defined at outer boundarios by a continuous winding line. Each S-shaped portion extends radially, and includes an upwardly-expanding part and a downwardly-expanding part. These parts are tapered toward a central opening.

REFERENCES:
patent: 4242460 (1980-12-01), Chick et al.
patent: 4422930 (1983-12-01), Hatanaka
patent: 4680111 (1987-07-01), Veda
patent: 4717519 (1988-01-01), Sagami
patent: 4729828 (1988-03-01), Miller
patent: 4877527 (1989-10-01), Brownell
patent: 5168058 (1992-12-01), Bohak et al.

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