The bulk of the Al concentrations were under 1ppm and it was all soluble. The PO4 source was trisodium phosphate because of cost. The reaction is rather fast at temperatures around 70F. We were able to increase the effective reaction time by using a tank or lagoon as a wide spot in the process stream. Low levels of soluble Al are very disruptive to RO membranes. You can give it a small test using a fish tank and a packed column to replicate a MM filter. Hope this helps.
Published by Terry Scheurman, President at Applied Specialties, Inc.
The bulk of the Al concentrations were under 1ppm and it was all soluble. The PO4 source was trisodium phosphate because of cost. The reaction is rather fast at temperatures around 70F. We were able to increase the effective reaction time by using a tank or lagoon as a wide spot in the process stream. Low levels of soluble Al are very disruptive to RO membranes. You can give it a small test using a fish tank and a packed column to replicate a MM filter. Hope this helps.