94-09: Innovative Thinking in Water Conservation

Two non-traditional examples of water reuse are presented, illustrating the value of innovative thinking in addressing specific water conservation challenges. Case 1 illustrates the se of a large cooling system as a repository for demineralizer waste. Normally this is not done, due to this stream's high salinity. However, the overriding objective of minimizing wastewater, and the establishment of protective measures allowed for successful reuse of this stream at minimal risk. Case 2 illustrates the benefits of cascading cooling water from a system containing barometric condensers as makeup to another cooling system, thus maximizing reuse of medium quality cooling water.