Concerning so called high-speed composting machines. A. Brazas, 2014
So-called High-Speed Composting
Machines (Decomposers) really
there are COMPOSTING machines
OR its are DEHYDRATION/DRYING
Alfonsas BRAZAS, 29.06.2014
Situation on the market
• There are a number of companies,
which advertises that it has
developed and manufactured high-
speed food / kitchen waste
• One of the leading companies in
this field is OKLIN International Ltd.
• Are these machines really a
• Are biowaste composting -
biostabilisation - possible in a few
hours or even a day?
Aerobic Digestion- composting
Composting is a biological process in which oxygen loving microorganisms are used
to consume organic matter and convert it into stable solids, carbon dioxide and
more organisms. Aerobic microorganisms, like all living things, require three things
to live and grow. They need Food, Water and Oxygen.
As these microorganisms eat and
grow they produce more and
more microorganisms who also
eat and grow and produce even
By optimizing the environment through agitation and temperature control,
digestion of organic waste is greatly accelerated allowing large volumes to be
processed in a short period of time. Aerobic digestion – composting alone can
reduce food waste by as much as 50-60% by volume.
A little bit of information to ponder...
• Boilers / heaters are used in all of these
machines for biomass heating.
• Blower or vacuum pump is used to
remove water vapor.
• Biomass dehydration (drying) process
is dominant, but not the composting
• The product obtained by the process is
dry, but not bio-stable. It really is not
• The so-called High-Speed Composting /
Decomposing machines are actually
Dehydration / Drying machines,
because of Dehydration / Drying
process is dominant.
• The Composting process plays only a
minor role - it is not essential, although
microorganisms really speeds up the
degradation of biowaste.