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electronic GmbH & Co. KG • Heinrichstraße 3-4 • 12207 Berlin • Deutschland • info@bandelin.com
4.5.2
Degassing
Degassing the bath liquid increases the ultrasound e
ff
ect.
Freshly-
fi
lled contact liquid or liquid that has remained in the oscillating tank for a long
period of time must be degassed prior to use. Gases released in the liquid (e.g. oxygen)
are reduced through degassing, thus signi
fi
cantly improving the ultrasound e
ff
ect.
The cavitation noise changes during degassing, loud degassing noises fade away at
the end of the degassing process and the ultrasonic bath appears to work more quietly.
However, a lower noise level does not mean a reduction in ultrasonic power. Instead,
it signi
fi
es the end of the degassing process and an improvement in the ultrasound e
ff
ect.
4.5.3
Disposal of sonication liquids
The working solution is disposed of pursuant to the speci
fi
cations in the product lea
fl
et and
the label supplied by the manufacturer of the agents employed. All aqueous agents made
by DR H. STAMM GmbH are prepared pursuant to the regulations of the German Washing
and Cleansing Agents Act, are biodegradable and as working solutions may be disposed
of in the wastewater. Strongly acidic and strongly alkaline liquids are to be previously
neutralised pursuant to technical data sheet speci
fi
cations. The manufacturer speci
fi
cations
for the corresponding preparations are to be observed.
During cleaning, materials hazardous to water such as oils, heavy metal compounds, etc.,
depending on the type of contamination, may enter the working solution. If the limit values
are exceeded, the working solution must be reconditioned (removal of contaminants) or be
disposed of as toxic waste.
Disinfection and cleaning agents that become contaminated when used are considered
"waste material" pursuant to the German Waste Act (AbfG) and may not be taken back
by the manufacturer. In other countries, the relevant supplementary/deviating national
regulations must be observed.
In every case, the statutory provisions and regulations of municipal wastewater plants
must be adhered to. Information is provided by municipal wastewater plants as well
as by environmental agencies.
