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Processing method for cadmium adsorbent with use stability

A processing method and adsorbent technology, which are applied in the processing field of cadmium adsorbents, can solve problems such as limiting the use range of products and discounting adsorption capacity, and achieve the effects of broadening applicability, enhancing use capacity, and improving adsorption efficiency and effect.

Inactive Publication Date: 2019-04-02
张海涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using this product, it is necessary to control the pH value of water and other liquids. When the pH value deviation is large, its adsorption capacity will be greatly reduced, which makes the product have certain limitations and limits the scope of use of the product.

Method used

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  • Processing method for cadmium adsorbent with use stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A processing method using a stable cadmium adsorbent, comprising the steps of:

[0032] (1) Raw materials are weighed for backup:

[0033] First take the following raw materials according to the corresponding parts by weight for later use: 5 parts of chitosan, 30 parts of silica gel, 0.3 part of magnetic rare earth material, 5 parts of binder;

[0034] (2) Raw material processing:

[0035] a. Put the chitosan weighed in step (1) into dilute hydrochloric acid with a total mass of 75 times, and keep stirring to obtain a chitosan solution for subsequent use after 25 minutes;

[0036] b. Put the silica gel weighed in step (1) into an incubator for heat preservation and activation treatment, and take out the activated silica gel after 1 hour for use;

[0037] c. Put the magnetic rare earth material weighed in step (1) into a ball mill for ball milling, and ball mill it until the particle size is 10-30 μm, then take it out for later use;

[0038] (3) Blending processing: ...

Embodiment 2

[0052] A processing method using a stable cadmium adsorbent, comprising the steps of:

[0053] (1) Raw materials are weighed for backup:

[0054] First take the following raw materials according to the corresponding parts by weight for later use: 6 parts of chitosan, 40 parts of silica gel, 0.5 part of magnetic rare earth material, 8 parts of binder;

[0055] (2) Raw material processing:

[0056] a. Put the chitosan weighed in step (1) into dilute hydrochloric acid whose total mass is 80 times, and keep stirring to obtain the chitosan solution for subsequent use after 27min;

[0057] b. Put the silica gel weighed in step (1) into an incubator for heat preservation and activation treatment, and take out the activated silica gel after 1.5 hours for use;

[0058] c. Put the magnetic rare earth material weighed in step (1) into a ball mill for ball milling, and ball mill it until the particle size is 10-30 μm, then take it out for later use;

[0059] (3) Blending processing:

[...

Embodiment 3

[0073] A processing method using a stable cadmium adsorbent, comprising the steps of:

[0074] (1) Raw materials are weighed for backup:

[0075] First take the following raw materials according to the corresponding parts by weight for later use: 7 parts of chitosan, 45 parts of silica gel, 0.8 part of magnetic rare earth material, 9 parts of binder;

[0076] (2) Raw material processing:

[0077] a. put the chitosan weighed in step (1) into dilute hydrochloric acid with a total mass of 85 times, and keep stirring to obtain a chitosan solution for subsequent use after 30 min;

[0078] b. Put the silica gel weighed in step (1) into an incubator for heat preservation and activation treatment, and take out the activated silica gel after 2 hours for use;

[0079] c. Put the magnetic rare earth material weighed in step (1) into a ball mill for ball milling, and ball mill it until the particle size is 10-30 μm, then take it out for later use;

[0080] (3) Blending processing:

[...

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Abstract

The invention discloses a processing method for a cadmium adsorbent with use stability. The processing method comprises the following steps: (1) weighing of raw materials for subsequent usage; (2) processing treatment of the raw materials; (3) blending processing treatment; and (4) drying treatment. The processing method provided by the invention performs special processing treatment to an adsorbent, realizes good optimization and improvement, significantly improves the adsorption efficiency and effects of the adsorbent to cadmium, reinforces the use ability of the adsorbent in a variety of acid and alkali environments, broadens the applicability of the adsorbent, and has significant market competitiveness and application values.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a processing method using a stable cadmium adsorbent. Background technique [0002] At present, with the development of industry, industries such as metallurgy, electroplating, mining, and chemical industry produce a large amount of wastewater containing heavy metals. More and more heavy metals enter natural water bodies and soils and cause harm to human body. Heavy metal pollution in water has become a major environmental problem to be solved worldwide. How to reduce and control heavy metal pollution has always been a hot issue in the field of environmental protection in the world. [0003] The types, contents and forms of heavy metal ions in wastewater vary with different production types. At present, the commonly used methods for removing heavy metals from aqueous solutions mainly include chemical precipitation, reverse osmosis, adsorption, memb...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J20/103B01J20/3085C02F1/286C02F1/288C02F2101/20
Inventor 张海涛
Owner 张海涛
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