A METHOD FOR IMPROVING THE PERCENT RECOVERY AND WATER QUALITY IN HIGH TOTAL HARDNESS WATER

摘要

A method is disclosed for improving the percent recovery and water quality in water with high levels of hardness. Embodiments of the method include receiving a produced water composition, partially softening the water composition, and directing the partially softened water composition through at least one reverse osmosis unit. The method may be used to purify and clarify produced water from oil and gas operations for use in boilers or once-through steam generators.