Abstract:
Wherever oil-changes are made on cars, trucks
or other vehicles, that also means the exchange
of used filters. Exchanges and maintenance
works cause additional oily waste materials,
such as oil cans, cleaning rags and saw dust.
Nowadays these waste materials are to a large
extent either deposited or burnt. Their quantity
is alarmingly high, and so is their potential
danger to the environment. In the Federal Republic
of Germany alone this quantity amounts to
approx. 160,000 cu.m per year. That leads to a
great number of ecological problems.
