The new technology that appeared
at the start of the 90s involving Moving Bed Processes,
has been well studied and pilot plant tested by
our company in many different research projects.
The good performance of this method means that
we can offer this technology for the treatment
of wastes from: food processing, wine producers,
the paper industry, slaughterhouses and urban
plants, where ATM already has several plants in
operation with very good results.
The basic principle in this moving bed process
is the growth of the biomass in plastic supports
that move in the biological reactor because of
the agitation created by ventilating systems (aerobic
reactors) or by mechanical systems (in anoxic
or anaerobic reactors). The supports are made
of plastic and have a density of around 1gr/cm3
which means that they can easily move around the
reactor even when the percentage occupied by the
plastic is 70%.
The biomass stays in the reactor together with
the plastic support so any external sludge recirculation
is not required from the settler. The quantity
of stored biomass on the plastic increases and
decreases according to the load that is to be
treated, with the excess biomass being freed automatically;
this excess biomass stays in suspension and goes
with the clean water to a settler or floater for
the separation final from the clean water.

Flow Chart
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Moving bed description in PDF format (303 KB)
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