Dow Global Technolgoies LLC

Jia Ning

Steven Douglas Jons

Michael S Koreltz

A water treatment assembly () and method for its operation, comprising a spiral wound hyperfiltration membrane module () connected to: i) a feed line () adapted for connection to a source of pressurized feed water, ii) a permeate line () adapted for connection to a dispenser of treated water and iii) a concentrate line () adapted for connection with a drain; wherein the assembly includes a pressurizable reservoir () containing weak acid cation exchange resin () and further includes at least one valve for selectively diverting flow of pressurized feed water along the feed line (), through the reservoir () and returning to the feed line () prior to passing through the hyperfiltration membrane module ().

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Shanghai, China

Jia Ning