BIOMICROFILTER Russian patent published in 1997 - IPC

FIELD: microbial purification of effluents resulting from milk processing, cheese making, fish canning, meat processing and similar plants with production, as by-product, of proteinic-vitaminic additive. SUBSTANCE: proposed biomicrofilter functions on principle of using specially selected microorganisms adapted to given type of contaminant for microbial purification of effluents. Biomicrofilter comprises parallel arranged upper 1 and lower discs 2, between which conical filtering partition 3 is interposed. Both bases of partition 3 rest on discs, while its interior cavity 4 is communicated with substrate supplying pipe 5. Discs 1 and 2 are kept apart by strutting element 6. Auxiliary upper 8 and lower discs 9 are rigidly mounted on drive shaft 7 between upper 1 and lower 2 discs. Auxiliary discs 8-9 house pipes 10 with perforated walls 11. Pipes 10 are arranged symmetrically and extend in parallel to drive shaft 7. Lower end 12 of pipes 10 is plugged, while their upper end is communicated, via auxiliary pipes 13, with pressure cavity 14 of upper disc 1. EFFECT: effective purification of heavily contaminated effluents. 2 dwg