Processing of Diatomaceous Earth

• Diatomaceous earth (Kieselgur) is a filter aid used for the filtration and clarification of beverages.
• The exposure of diatomaceous earth containing dust is very critical and endangers health.
• Calcined diatomaceous earth contains crystalline silica which is a known cause of silicosis, a progressive, sometimes fatal lung disease.
• Since 1998 it is classified as carcinogenic to humans in the highest category (IARC group 1).
• Permissible exposure limits lie in different countries between 0,05 and 0,4 mg/m.
• Pouring bags into a vessel creates dust and cannot be accepted anymore!
• Excerpts from a publication of the German Employer's Liability Insurance Association for the handling of diatomaceous earth
• Suspensions of diatomaceous earth always tend to sediment.
• No normal stirrer or agitator is able to keep this suspension really homogeneous - this is only possible using a Jetstream Mixer.
• The mixture takes place very carefully and does not change the characteristics of this shear sensitive suspension.
• With the same machine it is even possible to aspirate CO2 for oxygen substitution highly effective.
• Depending upon the batch size different machine sizes are available.
• The induction speed ranges up to 20 kg/min.
• The TDS Induction Mixer inducts diatomaceous earth dust free directly from the bag into the liquid!
• No raising the bags!
• No dumping or pouring them!
• No dust extraction is required!
• After induction the machine is switched to slow speed and mixes the suspension perfectly (Jetstream Mixer principle)

Extract from a publication of the German Employer's Liability Insurance Association for the handling of diatomaceous earth Kieselgur