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Water treatment chitosan mixture and preparation method thereof

A chitosan and mixture technology, which is applied in the field of water treatment chitosan mixture and its preparation, can solve the problems of strong solubility and weak adsorption capacity of chitosan.

Pending Publication Date: 2021-12-14
陆挺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Now that we are committed to environmental protection, bamboo charcoal and chitosan are also very common for water treatment, but for the treatment of phosphorus-containing wastewater, water treatment agents made by combining bamboo charcoal and chitosan often have low adsorption capacity. , The solubility of chitosan is strong, etc.

Method used

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  • Water treatment chitosan mixture and preparation method thereof

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Effect test

Embodiment 1

[0028] A kind of water treatment chitosan mixture, by weight, mainly comprises:

[0029] 10 parts of modified bamboo charcoal, 1 part of chitosan, 0.2 part of cinnamaldehyde.

[0030] A kind of preparation method of water treatment chitosan mixture, the preparation method of described water treatment chitosan mixture is:

[0031] (1) Immerse the pretreated bamboo charcoal in a hydrazine solution with 20 times the mass fraction of the bamboo charcoal mass fraction of 20%, after immersion for 6min, carry out microwave preheating, heat under 480W microwave for 8min, cool to room temperature and wash with deionized water for 3 times, pre-modified bamboo charcoal is obtained;

[0032] (2) Disperse the pre-modified bamboo charcoal in a mixed solution of 20 times the mass of the pre-modified bamboo charcoal, stir while microwave heating, heat under 600W microwave for 5min, the stirring rate is 200rpm, stop stirring after stirring for 2min, and heat it while it is hot Filter and pla...

Embodiment 2

[0041] A kind of water treatment chitosan mixture, by weight, mainly comprises:

[0042] 20 parts of modified bamboo charcoal, 2 parts of chitosan, 0.8 part of cinnamaldehyde.

[0043] A kind of preparation method of water treatment chitosan mixture, the preparation method of described water treatment chitosan mixture is:

[0044] (1) Immerse the pretreated bamboo charcoal in 30 times the mass fraction of bamboo charcoal in a hydrazine solution with a mass fraction of 30%. After soaking for 15 minutes, carry out microwave preheating, heat under 560W microwave for 4 minutes, cool to room temperature and wash with deionized water for 5 minutes. times, pre-modified bamboo charcoal is obtained;

[0045] (2) Disperse the pre-modified bamboo charcoal in the mixed liquid of 30 times the mass of the pre-modified bamboo charcoal, stir while microwave heating, heat under 800W microwave for 5min, the stirring rate is 400rpm, stop stirring after stirring for 2min, and heat it while it is...

Embodiment 3

[0054] A kind of water treatment chitosan mixture, by weight, mainly comprises:

[0055] 15 parts of modified bamboo charcoal, 1.5 parts of chitosan, and 0.45 parts of cinnamaldehyde.

[0056] A kind of preparation method of water treatment chitosan mixture, the preparation method of described water treatment chitosan mixture is:

[0057] (1) Immerse the pretreated bamboo charcoal in a hydrazine solution with 25 times the mass fraction of the bamboo charcoal mass fraction of 25%, after soaking for 10min, carry out microwave preheating, heat under 520W microwave for 6min, cool to room temperature and wash with deionized water for 4 times, pre-modified bamboo charcoal is obtained;

[0058] (2) Disperse the pre-modified bamboo charcoal in the mixed solution of 25 times the mass of the pre-modified bamboo charcoal, stir while microwave heating, heat under 700W microwave for 6min, the stirring rate is 300rpm, stop stirring after stirring for 3min, and heat it while it is hot Filt...

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Abstract

The invention discloses a water treatment chitosan mixture and a preparation method thereof, and relates to the field of water treatment. When the water treatment chitosan mixture is prepared, chitosan, cinnamyl aldehyde and modified bamboo charcoal are mixed to prepare the water treatment chitosan mixture. The preparation method comprises the following steps: immersing bamboo charcoal in hydrazine, carrying out microwave preheating, placing the preheated bamboo charcoal in a mixed solution of ferric chloride and copper chloride, carrying out microwave heating again, placing the bamboo charcoal in an ice-water mixture, cooling to obtain modified bamboo charcoal, putting the modified bamboo charcoal into modified chitosan, and finally carrying out catalytic treatment to obtain the water treatment chitosan mixture. The water treatment chitosan mixture prepared by the preparation method disclosed by the invention not only is relatively low in solubility, relatively strong in water treatment capacity and high in adsorption efficiency, but also has double effects of physical adsorption capacity and chemical adsorption capacity.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a water treatment chitosan mixture and a preparation method thereof. Background technique [0002] The per capita possession of water resources in my country is relatively small, and the distribution is uneven. Moreover, with the economic development and the improvement of the overall living standards of the society, the demand for water resources is increasing day by day. However, the pollution of water bodies is serious, and the water quantity and water quality of recoverable water sources have declined sharply. Controlling water pollution has become a top priority. At home and abroad, the choice of water treatment by adsorption method is mostly concentrated on natural materials such as activated carbon, zeolite, bentonite, slag, etc., and these materials are modified or activated to improve their water treatment capacity. [0003] Now that we are committed to environmental prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28B01J20/26B01J20/24B01J20/20B01J20/06B01J20/30
CPCC02F1/286C02F1/283C02F1/281B01J20/20B01J20/24B01J20/267B01J20/06C02F2209/02C02F2209/18
Inventor 陆挺
Owner 陆挺
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