Contact filter block of joined tube sections

Details Contact filter block of joined tube sections Contact filter block of joined tube sections

1997-08-07

1999-03-16

Drodge, Joseph W.

Liquid purification or separation

With gas-liquid surface contact means

2103232, 21049701, 428 341, C02F 310

Patent

active

058825100

ABSTRACT:
Contact-filter block (10) for the construction of trickling filters or rotating disc filters such as those used for the biological treatment of waste waters. The tube sections (11) of which the contact-filter block (10) is made up have an outside surface (12) structured in a net-like manner, the outside surfaces of the tube sections (11) being joined by joints (13) to avoid constrictions in the clear cross section of the tube sections (11).

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patent: 4043917 (1977-08-01), Rowley et al.
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patent: 5443724 (1995-08-01), Williamson et al.
patent: 5693383 (1997-12-01), Basse et al.
patent: 5772870 (1998-06-01), Basse
6109 Korrespondenz Abwasser 35 (1988) Jan. No. 1 St Auguston, W. Germany.

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