STUDY OF PRODUCTION OF REVERSE OSMOSIS DEMINERALIZED WATER FOR BOILERS
Abstract
A comparison of the presence and absence of a softening system as a pretreatment of the water that is fed into the separation process by reverse osmosis membranes was performed. The following parameters of the reverse osmosis were evaluated: the pH of the feed water; the flow of the permeate; the pressure of the feed water in the membrane in the first and second stages; and the pressure of the reject, both in the absence and the presence of the softening system. The results indicated that the inclusion of a softening system as a pretreatment for feeding the reverse osmosis process prevented the premature deposition of silica, thereby increasing the useful life of the membranes
Keywords
reverse osmosis; membrane; softener; demineralized water
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PDF (Português (Brasil))DOI: http://dx.doi.org/10.5380/cep.v35i1.55943