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

machines?

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

composting units/machines.

• One of the leading companies in

this field is OKLIN International Ltd.

But...

• Are these machines really a

composting machines?

• 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.

Food

Water Oxygen

As these microorganisms eat and

grow they produce more and

more microorganisms who also

eat and grow and produce even

more offspring.

=

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...

A little bit of information to ponder...

CONCLUSIONS

• 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

process.

• The product obtained by the process is

dry, but not bio-stable. It really is not

compost.

CONCLUSIONS

• 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.

concerning so called high-speed composting machines. a. brazas, 2014

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