This slide presentation outlines information on the impacts of long-term raw water quality changes on high pressure membrane process design. Topics covered include: high pressure membrane processes critically
dependent upon raw/feed water quality; raw water quality will specifically impact
numerous design and operational criteria; groundwater aquifers usually vary minimally
seasonally, but can vary significantly with
service life; primary problem is determining what
raw water quality will be in future raw water; case study of St. Johns County, Florida; significant degradation expected
through year 2025; St. Johns County can easily design
around feed pressure and acid feed, but
not blend issue; and, case study of Collier County, Florida. Includes table.