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A kind of preparation method and application of modified zeolite

A modified zeolite, modified technology, applied in chemical instruments and methods, crystalline aluminosilicate zeolite, other chemical processes, etc., can solve problems such as rapid changes in water quality, toxic carcinogenic effects, and impact on water ecosystem stability. Achieve the effect of improving the water environment and removing high concentrations

Active Publication Date: 2018-07-10
河南索易新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Printing and dyeing wastewater has complex sources and pollutant components, and has the characteristics of large water volume, high content of organic pollutants, deep chroma, high alkalinity, and rapid water quality changes. The direction of chemical and anti-biochemical development has increased the difficulty of treatment of printing and dyeing wastewater
After the dye wastewater enters the environmental water body, on the one hand, it will reduce the light transmittance of the water body and hinder the photosynthesis of aquatic plants, thereby affecting the stability of the water body ecosystem. On the other hand, dyes, additives and some intermediate products such as aromatic amines etc., all have strong toxicity and carcinogenic effects, and cause adverse effects on the ecological environment

Method used

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  • A kind of preparation method and application of modified zeolite
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  • A kind of preparation method and application of modified zeolite

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1 A kind of modified zeolite and its preparation method and application

[0040] (1) Preparation method

[0041] 1) Artificial zeolite sample pretreatment: put the artificial zeolite sample in 400ml of distilled water, add 1-2 drops of dilute hydrochloric acid and shake it to neutralize the residual alkaline substances in the pores of the zeolite, wash it repeatedly until it is neutral, and then filter it. Tumble dry low.

[0042] 2) Mix HDTMA and deionized water at a ratio of 1:6 (m:m), and prepare an organic modification solution after ultrasonic stirring.

[0043] 3) Add artificial zeolite samples to the organic modification solution, the mass ratio of HDTMA to zeolite is 1:10, 1:20, 1:40, 1:60 respectively, after mixing, shake at room temperature for 30 hours, and wash repeatedly with distilled water to neutral, filter and separate to obtain a filter cake, and dry it at 60°C to obtain an organically modified zeolite.

[0044] (2) Application 1

[0045...

Embodiment 2

[0050] Embodiment 2 A kind of modified zeolite and its preparation method and application

[0051] (1) Preparation method

[0052] 1) Artificial zeolite sample pretreatment: put the artificial zeolite sample in 400ml of distilled water, add 1-2 drops of dilute hydrochloric acid and shake it to neutralize the residual alkaline substances in the pores of the zeolite, wash it repeatedly until it is neutral, and then filter it. Tumble dry low.

[0053] 2) Mix DTBA and deionized water at a ratio of 1:3 (m:m), and prepare an organic modification solution after ultrasonic stirring.

[0054] 3) Add artificial zeolite samples to the organic modification solution. The mass ratios of DTBA to zeolite are 1:10, 1:40, and 1:60 respectively. After mixing, shake at room temperature for 30 hours, and wash repeatedly with distilled water until neutral. Filter and separate to obtain a filter cake, and dry it at 70° C. to obtain an organically modified zeolite.

[0055] (2) Application

[005...

Embodiment 3

[0058] Embodiment 3 A kind of modified zeolite and its preparation method and application

[0059] (1) Preparation method

[0060] 1) Artificial zeolite sample pretreatment: put the artificial zeolite sample in 400ml of distilled water, add 1-2 drops of dilute hydrochloric acid and shake it to neutralize the residual alkaline substances in the pores of the zeolite, wash it repeatedly until it is neutral, and then filter it. Tumble dry low.

[0061] 2) Mix HDTMA and deionized water at a ratio of 1:5 (m:m), and prepare an organic modification solution after ultrasonic stirring.

[0062] 3) Add artificial zeolite samples to the organic modification solution. The mass ratios of HDTMA to zeolite are 1:10, 1:40, and 1:60 respectively. After mixing, shake at room temperature for 30 hours, and wash repeatedly with distilled water until neutral. Filter and separate to obtain a filter cake, and dry it at 50° C. to obtain an organically modified zeolite.

[0063] (2) Application

[0...

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Abstract

The invention relates to a preparation method and application of a modified zeolite. The organic modification solution is obtained by adding the surfactant to the deionized water, and the mass ratio of the surfactant to the deionized water is 1:3-1:6. Add zeolite to the organic modification solution, the mass ratio of surfactant to zeolite is 1:10-1:60, mix evenly, shake and react for 20-32 hours, filter, and dry at low temperature to obtain the organic modified zeolite product. Inorganic metal salt titanium sulfate can also be added for further composite modification. The composite modified zeolite of the present invention exhibits good adsorption capacity for both copper ions and dye solutions.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a method for removing heavy metal copper ions and organic dye pollutants in sewage by using modified zeolite. Background technique [0002] The pollution of heavy metal ions caused by industrial sewage discharge is a worldwide environmental protection problem. Heavy metal ions such as Sb, Cr, Cu, Pb, Cd, Hg will cause harm to human health and the environment. Copper ions mainly come from industrial wastewater in electroplating, metal processing and other industries, and the enrichment of copper ions is often found near mines, landfills and waste disposal sites. [0003] Copper ions can cause skin itching and keratin of hands and feet in light cases, and cause gastrointestinal discomfort and liver and kidney discomfort in severe cases. People who are often exposed to high concentrations of copper ions are also at risk of liver cancer. The World Health Organization (WHO)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/18B01J20/30C01B39/02C02F1/28C02F1/62
Inventor 邓慧陈澳
Owner 河南索易新材料有限公司
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