Filling material for percolating filters for the treatment...

Details Filling material for percolating filters for the treatment... Filling material for percolating filters for the treatment...

C - Chemistry, Metallurgy

02

F

362/13

C02F 3/10 (2006.01)

Patent

CA 1330459

ABSTRACT Especially in biological sewage treatment, filling material of the type discussed here must provide the best possible hold for the biological filter film necessary for the purpose and have uniform wettability. The disadvantage of known apparatuses meeting these requirements is that they either tend to clog or are difficult to produce. The new filling material will work effectively and reliably, whilst being simple to produce and assemble. To provide ideal growth surfaces for the biological filter film, the filling material according to the invention has a plurality of plastic strips which are connected to one another by means of a single holding sheet. Furthermore, the strips have a special shape, in particular corrugated edges and/or a structured neutral region.

614657

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