Osmotic pressure assisted reverse osmosis membrane and module

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United States of America Patent

PATENT NO 11839853
APP PUB NO 20210275968A1
SERIAL NO

16487055

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Abstract

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Membranes and filtration modules for producing a concentrated feed stream and a diluted feed stream during operation in a water purification or wastewater treatment system. Filtration modules are provided that include a semipermeable membrane having a first side and a second side, the first side configured to receive a first feed solution stream from a first feed solution source and the second side configured to receive a second feed solution stream from a second feed solution source. The semipermeable membrane may be configured to operate at a hydrostatic pressure on the second side of the membrane from about 1% to about 40% of the hydrostatic pressure on the first side of the membrane, and may in some cases exhibit a salt rejection of from about 60 percent to about 90 percent during operation.

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Patent Owner(s)

  • TREVI SYSTEMS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baker, Elliott Petaluma, US 9 71
Carmignani, Gary Petaluma, US 9 88
Webley, John Petaluma, US 8 11
Wei, Qiang Petaluma, US 76 353

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