Wednesday, October 31, 2007

What do you mean by Filters?

The filters are used to clean the water and take away the impurities, e.g. shells and algae. The filtration is to 2 micrometers. The filters are therefore fine so as not to block the pores of the reservoir. The Sand filters are the easiest to make use of, because there is an automatic system with Delta P which cleans the filter with a backwash when the sand filter is dirty or unclean. The sand filter has various beds with different sizes of sand. The sea water traverses the first, finest, layer of sand caused by the coarsest and to clean the filter, the method is inverted. After the water is filtered it goes on with to fill the de-oxygenation tower.


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