Application
Manganese dioxide catalytic MULTIMAN 3M bed is a highly efficient natural filtration granulate, composed mainly of manganese ore. MULTIMAN 3N is used in treatment of potable water with high manganese and iron content. It may be used either in quick pressure filtration or open and closed gravitational filters.
MULTIMAN 3N bed complements filtration gravel, anthracite or MULTIMAN 2N in single stage filtration. In double stage filtration it is used in the second stage as a separate demanganising layer.

Functioning
MULTIMAN 3M bed functions as a insoluble catalyst accelerating the manganese compounds oxidation which enables its separation from water in form of insoluble manganese dioxide and its sorption on bed surface and in its deeper layers. The bed has large specific surface, which results with efficient removal of colloidal structures which cause raw water turbidity and extending the filtering cycle which brings obvious economic profits. MULTIMAN 3M is an insoluble catalyst, so it doesn’t wear out! It is revered by air – water countercurrent washing, which removes suspension collected on bed granulate surfaces.

Technology
- Bed height (filtration layer thickness) and filtration speed is adjusted on the basis of raw water physical and chemical parameters.

Product features
- No bed start-up necessity – the bed works right after being applied.
- No necessity of chemical recovery.
- No necessity of chemical substances to be applied in raw water.
- Easy applicable in the existing filtration systems, water treatment stations with no need to reconstruct them.
- Thanks to the large specific surface the filtering cycle extends, which brings economical profits.
- High tolerance for contaminations condensation changes in the fluid.