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Diatomaceous
earth (DE), also known as diatomite, diahydro,
kieselguhr, kieselgur and Celite, is a sedimentary
rock primarily composed of the fossilized remains
of unicellular fresh water plants known as Diatoms.
The typical chemical composition of diatomaceous
earth is 86% silica, 5% sodium, 3% magnesium and
2% iron.
The
De has a high porosity, with lower density, larger
surface area, strong absorption, good suspending
performance, it has relative incompressibility
and chemical stability without any poison and
smell.
Therefore,
the diatomaceous earth and its products are used
as a filter medium, especially for swimming pools.
It is also used to filter beer,wine,glucose,syrups
and sugar. Other industries such as paper, paints,
ceramics, soap and detergents use it as a filling
material.
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