A survey of desalinated permeate post-treatment practices

Abstract As part of the Water Research Foundation (Denver, CO) project “Post-Treatment Stabilization of Desalinated Water,” a questionnaire was developed and distributed to water utilities employing desalination processes to survey post-treatment practices, compile process and water quality data, highlight operating cost and post-treatment operation experiences, and identify distribution system secondary impacts. A total of eighty-three surveys were distributed to water utilities in the United States (USA), Caribbean and Europe, and responses collected over a period of six months duration from the time of initial mailing. Twenty-five questionnaires were returned yielding a thirty percent response rate. Twenty-one of the twenty-five responses were received from the USA, three from Europe and one response was received from the Caribbean. The average-daily permeate flow of the facilities surveyed ranged from 0.39 m3/min (0.15 million gallons per day (MGD)) to 184 m3/min (70 MGD). Results indicated a variety ...