Biological Filters
A water wheel driven distributor to a filter bed.
A close up detail of water wheel in central drum of distributor.
Floor tiles being laid in a circular biological filter bed (note the close fitting and cutting of the tiles).
View of a Circular biological filter bed with Concrete wall blocks.
General view inside a new biological filter bed.
Showing new pre-cast concrete walling units, filter bed floor tiles for under floor ventilation
and inlet feed pipe to central distributor.
Central pre-cast concrete chamber for support to new distributor.
Inlet feed pipe support with floor tiles
Collection channel at bottom of filter bed walls showing filter bed wall blocks.
6 No. larger filter bed distributors fed from a dosing siphon (large structure between beds at rear.)
Water wheel driven filter bed distributor.
A centre fed distributor with a dosing syphon in the central drum.
A rectangular filter bed with a tipper tray mechanism, and distribution troughs, double sided.
A rectangular filter bed with a tipper tray mechanism, and distribution troughs, single sided.
We thank all contributors for the permission to use their photographs but if there are any person/companies which should be recognised and thanked please advise us as soon as possible and this will be corrected.