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US 2009/0152178 A1Published application
Fully Automated Membrane Cleaning System and Methods of Use
OwnerChristopher Heissinventor
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Abstract
The invention provides apparatus and methods for completely automated cleaning of reverse osmosis systems. This includes cleaning initiation, selection of cleaning agent, complete cleaning and rinsing, and cleaning evaluation.
Claims3
A fluid purification system comprising:
- a. at least one reverse osmosis (RO) unit having at least one RO membrane;
- b. automated cleaning inlet valving in fluid communication with each RO membrane to direct fluid from at least one of a cleaning tank and a rinse water source to the at least one RO membrane;
- c. automated cleaning outlet valving in fluid communication with each RO membrane to direct fluid from the at least one RO membrane to at least one of a cleaning tank and a disposal outlet;
- d. cleaning chemical source in fluid communication with the automated cleaning inlet valving, wherein cleaning chemicals comprise an acid, a base, and a biocide
- e. a programmable logic controller connected to control the valving to direct a cleaning chemical to the RO membrane in response to at least one monitored parameter of the RO unit selected from the group consisting of permeate flow, concentrate flow, feed to concentrate differential pressure for each RO unit, feed conductivity, permeate conductivity and cleaning solution pH.
2 more elements
Dependencies are inferred from the claim text.