At that level of silica RO may not be an "only" option especially if 80% recovery is the target. A softener followed by a desilicizer will work to remove the silica (and other minerals and ions) but it will not be an in expensive solution. But an RO after this proper treatment should perform well. Lime softening with magnesium present will also work but this may add ionic species that will be detrimental to the RO service.
Published by Vann Raley
At that level of silica RO may not be an "only" option especially if 80% recovery is the target. A softener followed by a desilicizer will work to remove the silica (and other minerals and ions) but it will not be an in expensive solution. But an RO after this proper treatment should perform well. Lime softening with magnesium present will also work but this may add ionic species that will be detrimental to the RO service.