A preparation method, product and application of modified montmorillonite

A montmorillonite and modification technology, which is applied in the field of preparation of modified montmorillonite, can solve the problem that lakes are not suitable for use, and achieve the effects of short processing time, simple preparation method and good application prospect.

Active Publication Date: 2022-01-28
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional organic modification of clay minerals, such as quaternary ammonium salts, CTAB and other modification methods, can greatly reduce the dosage of clay minerals, but due to its own toxicity, it is not suitable for lakes and reservoirs

Method used

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  • A preparation method, product and application of modified montmorillonite
  • A preparation method, product and application of modified montmorillonite
  • A preparation method, product and application of modified montmorillonite

Examples

Experimental program
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Effect test

Embodiment 1

[0046] The preparation of water body algaecide comprises the following steps:

[0047] (1) Insulate the sodium-based montmorillonite in an oven at 105° C. for 4 hours to obtain pretreated montmorillonite;

[0048] (2) Adding a mass fraction of 20% sulfuric acid solution to the pretreated montmorillonite obtained in step (1) according to a mass ratio of 1:1, stirring evenly, standing for activation for 3 hours to obtain a modified montmorillonite;

[0049] (3) adding concentration to the modified montmorillonite obtained in step (2) is the ferric chloride solution of 0.5mol / L, stirs 2h, obtains ferric montmorillonite, wherein ferric chloride solution and sodium-based montmorillonite The mass ratio is 3:1;

[0050] (4) adding concentration to the ironized montmorillonite obtained in step (3) is the sulfuric acid of 1mol / L, the mass ratio of sulfuric acid and sodium-based montmorillonite is 3: 1, after stirring for 8h, centrifuge at a speed of 4000rpm for 10min , and then place...

Embodiment 2

[0052] Preparation of water body algaecide:

[0053] (1) Insulate the sodium-based montmorillonite in an oven at 100° C. for 5 hours to obtain pretreated montmorillonite;

[0054] (2) According to the mass ratio of 1.5: 1, adding a mass fraction of 18% sulfuric acid solution to the pretreated montmorillonite obtained in step (1), after stirring evenly, leave it to activate for 2 hours to obtain the modified montmorillonite;

[0055] (3) adding concentration to the modified montmorillonite that step (2) obtains is the ferric chloride solution of 0.8mol / L, stirs 1.5h, obtains ferric montmorillonite, wherein ferric chloride solution and sodium-based montmorillonite The mass ratio of soil is 2:1;

[0056] (4) adding concentration to the ironized montmorillonite obtained in step (3) is the sulfuric acid of 0.5mol / L, the mass ratio of sulfuric acid and sodium-based montmorillonite is 4: 1, after stirring for 6h, centrifuge with the rotating speed of 5000rpm 5min, then put it in an...

Embodiment 3

[0058] The preparation of water body algaecide comprises the following steps:

[0059] (1) Insulate the sodium-based montmorillonite in an oven at 110° C. for 3 hours to obtain pretreated montmorillonite;

[0060] (2) Adding a mass fraction of 22% sulfuric acid solution to the pretreated montmorillonite obtained in step (1) according to a mass ratio of 1.2: 1, after stirring evenly, leave to activate for 4 hours to obtain a modified montmorillonite;

[0061] (3) adding concentration to the modified montmorillonite obtained in step (2) is the ferric chloride solution of 1.0mol / L, stirs for 2.5h, obtains ferric montmorillonite, wherein ferric chloride solution and sodium-based montmorillonite The mass ratio of soil is 4:1;

[0062] (4) adding concentration to the ironized montmorillonite obtained in step (3) is the sulfuric acid of 1.5mol / L, the mass ratio of sulfuric acid and sodium-based montmorillonite is 2: 1, after stirring for 10h, centrifuge with the rotating speed of 60...

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Abstract

The invention discloses a preparation method, product and application of a modified montmorillonite, which belongs to the technical field of water body algae removal. The invention pretreats the montmorillonite and activates it with acid to obtain a modified montmorillonite, which is used as The raw materials are respectively ironized, acid modified, and ferricized to obtain a water algaecide and an algae extracellular secretion remover; the water algaecide prepared by the present invention can make the algae sink to the bottom quickly; the prepared algae Extracellular secretions remover can effectively oxidize and remove algal extracellular secretions, and can destroy the integrity of algal cells for the second time, overcoming the traditional method of using flocculation and adsorption that leads to secondary outbreaks of algal cells that are not inactivated and caused by untreated algae. The problem of water body pollution caused by extracellular secretions; when the water algaecide and algae extracellular secretions remover prepared by the present invention are used for algae removal, the amount of materials used is small, the time required for treatment is short, and the treatment effect is good, especially suitable for Emergency treatment of algal blooms in lakes and reservoirs.

Description

technical field [0001] The invention belongs to the technical field of algae removal in water bodies, and in particular relates to a preparation method, product and application of modified montmorillonite. Background technique [0002] The phenomenon of algae blooming due to the deterioration of the water resource environment and the destruction of the ecological balance is called algae outbreak. The algae outbreak causes the death of fish and shrimp, leads to water pollution, and has a serious impact on human production and life. At the same time, the algae toxins released when the algae die can cause damage to human nerves, muscles and liver, and even lead to death in severe cases. Therefore, how to quickly settle the algae and remove the extracellular substances secreted when the algae die has become an emerging research hotspot. [0003] Although there are many methods for managing algal blooms, each method has its own advantages and disadvantages. Therefore, it is ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/50
CPCC02F1/50
Inventor 杨远坤刘杰文新宇封小倩谌书王彬
Owner SOUTHWEAT UNIV OF SCI & TECH
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