... transfer include: • The temperature of both water and air • The physical chemistry of the contaminant • Concentration of the contaminant • The ratio of air to water in the process • Contact ... Desalination with reverse osmosis. • Softening with reverse osmosis or nanofiltration. • Removal of nitrate (and other ions) with reverse osmosis. • Removal of color, total organic carbon (TOC), ... society of civil engineers Annual conference, New Orleans, LA, 1982. Montgomery, James M. Consulting Engineers, Inc., Water Treatment Principles and Design, John Wiley & Sons, New York,...