WATER TREATMENT APPARATUS
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United States of America
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Mar 26, 2020
app pub date -
Nov 27, 2019
filing date -
Nov 27, 2019
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A thermo-sensitive water absorbent is used as a draw material in production of fresh water by a forward osmosis process. The thermo-sensitive water absorbent has a cloud point, and coagulates when heated, the thermo-sensitive water absorbent being a block copolymer containing at least a hydrophobic part and a hydrophilic part, having a glycerin structure as a basic structure, and including an ethylene oxide group and a group consisting of propylene oxide and/or butylene oxide.
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