Silicon Diatomite Supercel

Product Description :
It is a mineral of vegetable origin. It represents the accumulation of an enormous number of fossil diatoms. Diatomite is called miraculous mineral because of its lightness, porosity and its uniquely honeycombed structure which makes it an ideal filtering medium. And because of its inherent stability and the absence of most trace elements, Diatomite is ideal for use by processor who have very high purity requirements such as the food, beverages and pharmaceutical industries, etc. Filtration using diatomite is a two step operation. First, a thin protective layer of filter aid, called the precoat, is built up on the filter septum by recirculating a filter aid slurry. After precoating, small amounts of filter aid (body feed) are regularly added to the liquid to be filtered. As filtering progresses, the filter aid, mixed with the suspended solids from the unfiltered liquid, is deposited on the precoat. Thus, a new filtering surface is continuously formed. The minute filter aid particles provide countless microscopic channels which entrap suspended impurities but allow liquid to pass through, without clogging. An efficient, economical filter aid must: 1) have rigid intricately shaped, porous individual particles. 2) form a highly permeable, stable and incompressible cake 3) remove even the finest solids at high rates of flow 4) be chemically inert and essentially insoluble in the liquid being filtered.
PRECOATING The first step in the use is to built up a “precoat” of filter aid on the filter septum. The purpose of the precoat is threefold: 1. To prevent the filter septum from becoming clogged by impurities, prolonging septum life. 2. To give immediate clarity. 3. To facilitate cleaning of the septum at the end of the cycle.