1.12
NOISE, SMELL, SEWAGE
1.12.1
NOISE
The composter works very quietly. Fan runs constantly at a low airflow giving a noise level of 45-55 dB
depending on the installation site. Motor rotating the cylinder at the set number of rotations and wait
time gives almost the same noise level as the fan 45-65 dB depending on installation site. (Cylinder is
normally rotating 1-3 minutes every 1-2 hours.) When the in conveyor (1-5 minutes per feed) the noise
level is 45-65 dB depending on type of waste material.
If there are disturbing or loud noises coming from the composter when the cylinder is rotating this
could mean that the engine and/or cylinder is overloaded. In this case the composter should be
checked immediately.
1.12.2
SMELL
A well managed compost where the decomposing process works
well does not create a foul smell. In general the more meat and fish
that is added to the composter the more smell the decomposing
process produces.
In order to minimize the smell the composter is equipped with a
ventilation system that sucks out exhaust gas and smell from the
composter. The ventilation installation must be adapted to each
specific site existing conditions. We recommend to use a biofilter
which reduces the smell by approx. 90%. See more detailed
information in ‘Biofilter Manual’.
1.12.3
DRAIN TO SEWAGE
Big Hanna models T480 is equipped with an inlet hopper drain. This drain can be connected to the
sewage. Pipe connection is ø 110 mm. Local regulations for connection to sewage must be observed.
Installation is done according to the instructions in the separate ‘Installation Manual’.
NOTE! There must be a lid or water seal stopping the air from being sucked in to the hopper and
from there in to the cylinder by the fan see below pictures. If the pipe is connected this is very
important since sewage gas may be drawn in to the machine if the water seal is no in place.