Kieselguhr used in a sentence

Kieselguhr in a sentence as a noun

How do you ensure enough kieselguhr is flowing into the mix to regenerate new layers of filter?

We also used kieselguhr in research labs for fine filtration--just add the powder to regular filter paper.

These work by having a steel plate with fine slots upon which you deposit a coarse bed of filter material, and then you dose kieselguhr into the liquid flow passing through, and this gradually builds up on top of the coarse bed to create an ultrafine filter.