Preparation method of forward osmosis suction liquid for brackish water desalination

The invention belongs to the technical field of water treatment, and particularly relates to a preparation method of a forward osmosis suction liquid for brackish water desalination. The preparation method comprises the following steps: 1, preparation of magnetic Fe3O4 nano-particles, namely applyin...

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Bibliographische Detailangaben
Hauptverfasser: XUE JUNFENG, XU BAIYU, CHEN DONGMEI, ZENG FANFU
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention belongs to the technical field of water treatment, and particularly relates to a preparation method of a forward osmosis suction liquid for brackish water desalination. The preparation method comprises the following steps: 1, preparation of magnetic Fe3O4 nano-particles, namely applying analytically pure FeCl3.6H2O and FeCl2.4H2O as raw materials for preparing Fe3O4 nano-particles for later use under a condition of using ammonia water as a precipitant by virtue of adopting a liquid-phase co-precipitation method; 2, modification of magnetic particles, namely obtaining the modified oil-phase magnetic Fe3O4 nano-particles for later use; and 3, preparation of a forward osmosis suction liquid, namely taking 1-3 parts of N-methylol acrylamide and 2-4 parts of acrylic acid, adding 100-130 parts of distilled water, and obtaining the forward osmosis suction liquid according to a certain preparation method. The preparation method disclosed by the invention is mainly used for brackish water desalination.