Patent ID: 8815096
Filing Date: 2014-08-26
Classification: C02F

Abstract:
1. An integrated sulfate removal process for a contaminated water source, the process comprising: passing a feed stream containing contaminated water comprising at least sulfate and at least a multivalent cation through sorption media to reduce an amount of multivalent cations in the feed stream by sorption of at least a portion of the multivalent cations by the sorption media and to form a passed stream; separating said passed stream into a purified water stream and a concentrated sulfate stream; separating said concentrated sulfate stream into precipitated sulfate stream and a first supernatant stream; separating said first supernatant stream into a precipitated multivalent cations stream and a second supernatant stream; preparing a sorption media regenerant from said second supernatant stream; and regenerating said sorption media with the regenerant to remove an amount of the multivalent cations from the sorption media and provide regenerated media and spent regenerant.