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Adsorbent with adsorption on heavy metals and preparation method for adsorbent

An adsorption, adsorbent technology, applied in the direction of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of difficult to form particle structure, long equilibrium time, slow mass transfer rate, etc. To achieve the effect of enhancing adsorption, protecting the environment and enhancing compatibility

Inactive Publication Date: 2015-09-09
ANHUI XINKUN PURIFICATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chitosan is a polymer substance with a linear structure. It will dissolve in an acidic solution, has poor stability, and is difficult to form a granular structure. When used in the mass transfer separation process, the equilibrium time is long and the mass transfer rate is slow. It is used in a fixed bed as a Adsorbent applications are subject to certain limitations

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0012] The present invention will be described in detail below through specific examples.

[0013] An adsorbent capable of adsorbing heavy metals and a preparation method thereof, made of the following raw materials in parts by weight (kg): zeolite 45, aluminum sol 3, polyvinylpyrrolidone 0.7, chitosan 19, cationic polyacrylamide 0.2, graphene oxide 8, titanium dioxide 7, cast stone powder 3, deionized water in proper amount;

[0014] A kind of adsorbent that has adsorption effect on heavy metal and preparation method thereof of the present invention, is made by following concrete steps:

[0015] (1) Soak the zeolite in 0.1mol / l hydrochloric acid solution for 24 hours, filter to remove impurities, wash the zeolite with deionized water until neutral, dry and pulverize it, mix it with polyvinylpyrrolidone and heat it to 450°C to obtain a porous zeolite, and then Add porous zeolite, cationic polyacrylamide and distilled water to an ultrasonic oscillator for 30 minutes of ult...

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Abstract

The invention discloses an adsorbent with adsorption on heavy metals and a preparation method for the adsorbent. The adsorbent is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of zeolite, 3-4 parts of an alumina sol, 0.4-1 part of polyvinylpyrrolidone, 15-20 parts of deacetylchitin, 0.1-0.3 part of cationic polyacrylamide, 8-10 parts of graphene oxide, 6-8 parts of titanium dioxide, 2-4 parts of cast stone powder and a proper amount of deionized water. The adsorbent disclosed by the invention is excellent in adsorption effect on heavy metals, capable of reducing the pollution on human bodies, soil and the like, capable of protecting the environment, simple and controllable in preparation process, and is worth being popularized.

Description

Technical field [0001] The present invention involves a field of adsorption agent, which specifically involves a adsorbent and preparation method that has adsorption effects on heavy metals. Background technique [0002] Heavy metals cannot be degraded by microorganisms, and are easily enhanced by organisms to be enriched by thousands of times in higher levels to produce cumulative poisoning. At the same time, because heavy metal pollution is hidden, long -term, and cumulative characteristics, its governanceIt is very difficult and is one of the most difficult pollutants.Although it has developed a variety of processing methods such as traditional chemical precipitation, chelating flocculation, iron oxygen method, ion exchange method, evaporation concentration method, adsorption method, membrane separation method, and electrochemical methods, etc.Compared with, the adsorption method has a wide range of applicable scope, simple processing process, wide sources of raw materials, lo...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30
Inventor 黄平
Owner ANHUI XINKUN PURIFICATION EQUIP