Preparation method of magnetic compound nanometer Fe3O4 flocculating agent and water treatment application

A magnetic composite nano, iron oxide technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc.
CN102249382AInactive Publication Date: 2011-11-23RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Publication Date
2011-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method of a magnetic nanometer Fe3O4 compound flocculating agent and water treatment magnetic separation application, belonging to the technical field of waste water treatment. In the preparation method, iron dichloride, iron chloride, aluminum sulfate and concentrated ammonia water are taken as main raw materials, the magnetic compound nanometer Fe3O4 flocculating agent is prepared by adopting a coprecipitation method, and the magnetic compound nanometer iron oxide flocculating agent is applied to waste water treatment. The method has the advantages of high yield, low cost, easiness for operation, no secondary pollution and good treating effect on typical pollutants in industrial waste water.
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Description

technical field

[0001] The invention belongs to the technical field of wastewater treatment. Nano-Fe was prepared by co-precipitation method 3 o 4 Composite flocculant, used for wastewater treatment, and finally separated by magnetic separation technology. Background technique

[0002] With the development of nanotechnology, nanomaterials have become an indispensable and important field in the development of current material science. With the rapid development of my country's social economy, the pollution of my country's water environment is becoming more and more serious, and the water quality is deteriorating day by day. Traditional flocculants can no longer meet the requirements for water purification of sewage. At present, due to the poor removal of organic or toxic and harmful pollutants by inorganic flocculants, the high cost of organic polymer flocculants, and cumbersome operations, it is always difficult to make breakthroughs in the research of high-efficiency flo...

Claims

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