Disinfection of reverse osmosis membrane
OwnerAlan Harrison, Patrick Siskinventors
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Abstract
A process for treating a reverse osmosis membrane with a biocide to kill bacteria on or in the vicinity of a membrane by contacting a reverse osmosis membrane with a halogen biocide in combined form which slowly releases halogen in a sufficient amount to disinfect the membrane and to kill any bacteria and thereby eliminate or prevent forming a biofilm on said membrane.
Claims17
A process for treating a reverse osmosis membrane with a biocide to kill bacteria on or in the vicinity of said membrane comprising contacting said reverse osmosis membrane with an oxidizing halogen biocide in combined form which slowly releases said halogen in sufficient amount to disinfect said membrane and to kill said bacteria and thereby eliminate or prevent biofilm on said membrane.
A process for treating water with a reverse osmosis membrane for desalination of said water, comprising contacting said water upstream from said membrane with an oxidizing halogen biocide to kill bacteria on or in the vicinity of said membrane, wherein said biocide contains an oxidizing halogen in combined form which slowly releases said halogen in sufficient amount to disinfect said membrane and to kill said bacteria and thereby eliminate or prevent a biofilm on said membrane.
A process for treating a reverse osmosis membrane made of polyamide with a biocide to kill bacteria on said membrane comprising contacting said reverse osmosis membrane with a stream of water containing an oxidizing biocide that contains a halogen in combined form which slowly releases said halogen in sufficient amount to disinfect said membrane and to kill said bacteria and thereby eliminate or prevent a biofilm on said membrane.
Dependencies are inferred from the claim text.