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4.3
Further information
4.3.1
Degassing
Degassing the sonication
fl
uid increases the ultrasound effect.
Freshly
fi
lled-in
fl
uid or
fl
uid that has remained in the oscillating tank for a longer period
of time must be degassed prior to use. Gases dissolved in the
fl
uid (e.g. oxygen) are
reduced through degassing and the ultrasound effect is thus signi
fi
cantly improved.
The cavitation noise changes during degassing, loud degassing noises disappear at the
end of the degassing process and the ultrasonic bath appears to work more quietly.
A lower noise level, however, does not mean a reduction in ultrasonic power. It rather
means the end of the degassing process and an improvement in the ultrasound effect.
4.3.2
Disposal of sonication fl uids
The working solution should be disposed of pursuant to the speci
fi
cations of the
product lea
fl
et and the label. All aqueous solutions made by DR. H. STAMM GmbH
are prepared pursuant to the regulations of the German Washing and Cleansing
Agents Act, are biodegradable, and may be discharged into the sewerage as working
solutions. Strongly acidic and strongly alkaline
fl
uids are to be previously neutralised
pursuant to technical data sheet speci
fi
cations. The manufacturer speci
fi
cations for the
corresponding preparation should be observed.
During cleaning, materials hazardous to water such as oils, heavy metal compounds,
etc., may be introduced to the working solution depending on the type of contamination.
If the limit values are exceeded, the working solution must be reconditioned (removal of
contaminants) or be disposed of as toxic waste.
Disinfecting 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 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.
