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Section 8: Disposal
Regeneration
In practice, the most common regeneration method is temperature increase. When desorbing water
vapor from silica gel, the temperature must be above 100°C. For silica gel with color indicators, a
regeneration temperature of 120°C should be maintained to avoid damaging the applied color indicator.
It is nevertheless recommended to use fresh silica gel.
Disposal
At the end of its service life, the device must be disposed of in accordance with the relevant legal
regulations. Metal and plastic parts should be separated and disposed of according to type.
The loaded desiccant Silica gel orange can be disposed of in household waste.
Silica gel orange is not classified as a hazardous substance according to European Union legislation
(Regulation EC No. 1272/2008). It does not require labeling according to EC Directive (67/548/EEC or
1999/45/EC). Silica gel orange is not classified as hazardous to health or the environment.
Section 9: Risk and hazard analysis
1. Humid air flows into the system
Porous seals
Moist air can flow into the adsorber or into the system at the porous points. As a result, complete drying
is not possible and moist air enters the system.
Adsorber part, or O-ring is not seated correctly on the valve part
If the adsorber part is not tight enough (well hand-tight) on the valve part, or the outer O-ring of the valve
part is not seated in the groove, moist air may enter the system at the leaking points.
Saturated desiccant
If the desiccant is saturated, it can no longer absorb moisture. As a result, moist air enters the system.
Zu hoher Luftdurchsatz
If the air flow rate is too high, the contact time between moist air and desiccant is too short. As a result,
moist air can flow into the system.
