Thermally regenerated kieselguhr – an alternative to conventional kieselguhr?
The notion that thermally regenerated kieselguhr could serve as an alternative to conventional, untreated kieselguhr has been a topic of discussion for years in the German brewing industry. Some view kieselguhr, also known as diatomaceous earth, which has been thermally regenerated, as a fully acceptable alternative while others refuse to even consider it. When attempting to ascertain basic facts on this subject, it becomes evident that there is almost no solid information specific to this application. Therefore, an objective evaluation for the utilization of thermally regenerated kieselguhr in beer filtration is needed. The results of the evaluation conducted by the VLB Berlin in cooperation with Tremonis GmbH, Dortmund are described in this paper.
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