Filtration is the general unitary operation able to remove solid particles from a liquid.
Filtration is the general unitary operation able to remove solid particle from a liquid solid particle. The filtration is applied on solid that normally take long time for sedimentation or for high flow rate.
The sedimentation time depends from the velocity of sedimentation of the particle.
The velocity of sedimentation depends from difference in density of sludge and liquid («Stoke» law). As is possible to understand, if the flow rate is high or if the sludge as very low density the time for sedimentation became huge.
CIE realize his multimedia sand and charcoal filtration with 3 different layers of 99% pure silica. The most important part for the realization of mechanical filtration is to find the correct velocity for the water passing through the filters.
This value is carefully calculated by CIE technicians based on the data of the process and the type of solid to be removed. The fouling and clogging of the filter is monitored with a ΔP. When the pressure difference reaches the set point the back-wash cycle is automatically performed with air and water to have a fluidification of the filter bed.
This Technology is applicable to the following fields
ALUMINUM
STEEL/ GALVANIZING/S.S.
Gallery
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