Premium
Posttreatment of Reverse Osmosis Product Waters
Author(s) -
Applegate Lynn E.
Publication year - 1986
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1986.tb05745.x
Subject(s) - reverse osmosis , demineralization , brackish water , chlorine , seawater , water treatment , environmental science , chemistry , environmental engineering , waste management , pulp and paper industry , membrane , salinity , engineering , materials science , ecology , biochemistry , oceanography , enamel paint , organic chemistry , composite material , biology , geology
Reverse osmosis (RO) product water usually requires posttreatment, regardless of the type of RO device, the chemical nature of the RO membrane, and the intended application of the water. Posttreatment requirements depend primarily on the application and must be determined on a case‐by‐case basis. For many industrial applications, posttreatment consists of demineralization by means of ion exchange and disinfection with ultraviolet radiation. Posttreatments for municipal applications include pH adjustment with bases or a degasifier (or both), reduction of corrosiveness, and disinfection with chlorine. Details of these posttreatments are given for RO product waters from brackish as well as seawater sources. The economics of these treatment processes are also presented.