Patent ID: 8840792

Claim:
A process for processing an original solution; the process comprising steps of: (a) providing a reverse osmosis system including at least: (i) a first, final, low pressure side outlet flow-generating reverse osmosis unit; and, (ii) a first, final, concentrate outlet flow-generating reverse osmosis unit; and, (b) operating the reverse osmosis system such that: (i) at least a selected unit comprising one of the first, final, low pressure side outlet flow-generating reverse osmosis unit and the first, final, concentrate outlet flow-generating reverse osmosis unit is operated with both a high pressure side inlet feed and a low pressure side inlet feed; wherein: (A) upstream of the selected unit, a feed stream is split to generate: at least a portion of the high pressure side inlet feed and at least a portion of the low pressure inlet feed, to the selected unit; and, (B) each one of the first, final, concentrate outlet flow-generating reverse osmosis unit and the first, final, low pressure side outlet flow-generating reverse osmosis unit is operated with at least: a high pressure side inlet feed; a high pressure side concentrate outlet; and, a low pressure side outlet.