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Magnetic adsorbent and preparation method thereof

An adsorbate and magnetic technology, applied in the fields of inorganic material magnetism, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of unrecoverable valence metals, high waste water treatment costs, waste of resources and treatment time, etc. Achieve the effect of avoiding sludge disposal problems, reducing treatment costs and shortening treatment time

Inactive Publication Date: 2012-07-04
NATIONAL ILAN UNIVERSITY
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Problems solved by technology

[0003] The traditional heavy metal wastewater treatment method is mainly based on coagulation sedimentation method. In addition to the high cost of wastewater treatment caused by the inability to recycle the chemical agent, this method will also generate a large amount of harmful sludge, which will cause serious sludge disposal problems, and there are Valuable metals cannot be recycled, resulting in waste of resources and excessive processing time.

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  • Magnetic adsorbent and preparation method thereof
  • Magnetic adsorbent and preparation method thereof
  • Magnetic adsorbent and preparation method thereof

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Embodiment Construction

[0040] refer to figure 1 , a magnetic adsorbent provided by an embodiment of the present invention, which is mainly composed of a carrier 10 covered by a shell 20, wherein:

[0041] Carrier 10 has magnetism, and carrier 10 is triiron tetroxide (Fe 3 o 4 ), which is mainly ferrous chloride (FeCl 2 ) and ferric chloride solution (FeCl 3 ) produced by mixed precipitation;

[0042] The shell 20 is covered on the outside of the carrier 10, and the outside of the shell 20 has an adsorption layer 21, wherein the shell 20 is silicon dioxide (SiO 2 ), the adsorption layer 21 is modified with amine groups, so that the adsorption layer 21 has a covalently bonded amine functional group, which has the ability to strongly bind to copper ions.

[0043] The above is the description of the structure of the adsorbate in the embodiment of the present invention. Accordingly, the magnetic adsorbate provided by the present invention has at least the following effects.

[0044] First, the tim...

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Abstract

The invention discloses a magnetic adsorbent and a preparation method of the adsorbent. The adsorbent is prepared by the steps of preparing raw materials, blending, heating and stirring, stirring and drying, and forming an adsorbing layer; the adsorbent is formed by wrapping a carrier with an outer shell; and the outer shell is provided with the adsorbing layer with a covalent bonding amidogen functional group. According to the invention, after the adsorbent is completely reacted, an external magnetic field can be utilized to quickly recover the adsorbent, so as to achieve the purposes of shortening the time of treating heavy metal wastewater, reducing the cost of treating the heavy metal wastewater, avoiding causing the sludge treating problem and recovering valued metal in the heavy metal wastewater.

Description

technical field [0001] The invention relates to an adsorbent for treating heavy metal wastewater, in particular to a magnetic adsorbate and a preparation method of the adsorbate. Background technique [0002] Generally, industries such as printed circuit board manufacturing, metal surface treatment, electroplating, and batteries will produce heavy metal wastewater after processing. If these heavy metal wastewater are not properly treated and discharged randomly, it will cause extremely serious damage to the ecological environment. Therefore, general The industry will treat heavy metal wastewater. [0003] The traditional heavy metal wastewater treatment method is mainly based on coagulation sedimentation method. In addition to the high cost of wastewater treatment caused by the inability to recycle the chemical agent, this method will also generate a large amount of harmful sludge, which will cause serious sludge disposal problems, and there are Valuable metals cannot be re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/10B01J20/28B01J20/30H01F1/11
Inventor 邱求三陈华伟张章堂钱柏勋
Owner NATIONAL ILAN UNIVERSITY
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