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Application of modified montmorillonite-doped composite resin filtration membrane to ink wastewater treatment

A composite resin, montmorillonite technology, applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. The effect of enhancing mechanical properties

Pending Publication Date: 2019-02-15
管敏富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water quality of ink wastewater is complex, and the heavy metal ions contained in the wastewater mainly include Hg 2+ 、Cr 3+ 、Cu 2+ etc. In previous studies, the evaluation of the treatment process of ink wastewater was based on the removal effect of chroma, turbidity, SS, and COD as evaluation indicators, but the removal effect of various heavy metal ions was rarely used as the evaluation index of the treatment process effect of ink wastewater , but they have a great impact on the water environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1. Clean the montmorillonite, dry it overnight at 60°C, suspend the dried zeolite in 0.05mol / L cysteamine hydrochloride solution, the ratio of solid to liquid is 1:30, and the unit of solid to liquid ratio is g / mL, treated at 60°C for 26h, centrifuged, dried at 60°C for 12h, and ground to 20 mesh to obtain mercapto-modified montmorillonite;

[0021] Step 2: Melt 30g of high-density polyethylene particles in an open mixer, add 9.2g of vinyl distearamide and 12g of 3,3'-diallyl bisphenol A, heat up to 180°C and mix for 10 minutes to obtain a resin mixed solution;

[0022] Step 3: Add 16g of mercapto-modified montmorillonite, 1.2mL of acetone, and 0.04g of Span 60 to the resin mixture prepared in step 2, and mix for 12 minutes to obtain a casting solution;

[0023] Step 4. Put the casting solution obtained in step 3 in a vacuum drying oven at 80°C for 8 hours to mature and defoam, then scrape the film on a clean glass plate, and solidify it in 0°C absolute ethanol t...

Embodiment 2

[0025] Step 1. Clean the montmorillonite, dry it overnight at 60°C, suspend the dried zeolite in 0.05mol / L cysteamine hydrochloride solution, the ratio of solid to liquid is 1:10, and the unit of solid to liquid ratio is g / mL, treated at 90°C for 18h, centrifuged, dried at 60°C for 12h, and ground to 20 mesh to obtain mercapto-modified montmorillonite;

[0026] Step 2: Melt 50g of high-density polyethylene particles in an open mixer, add 5.4g of vinyl distearamide and 20g of 3,3'-diallyl bisphenol A, heat up to 150°C and mix for 30 minutes to obtain a resin mixed solution;

[0027] Step 3. Add 9g of mercapto-modified montmorillonite, 2.8mL of acetone, and 0.01g of Span 60 to the resin mixture prepared in step 2, and mix for 18 minutes to obtain a casting solution;

[0028] Step 4. Put the casting solution obtained in step 3 in a vacuum drying oven at 60°C for 12 hours to mature and defoam, then scrape the film on a clean glass plate, and solidify it in 0°C absolute ethanol t...

Embodiment 3

[0030] Step 1. Clean the montmorillonite, dry it overnight at 60°C, suspend the dried zeolite in 0.05mol / L cysteamine hydrochloride solution, the ratio of solid to liquid is 1:26, and the unit of solid to liquid ratio is g / mL, treated at 70°C for 24 hours, centrifuged, dried at 60°C for 12 hours, and ground to 20 mesh to obtain mercapto-modified montmorillonite;

[0031] Step 2: Melt 36g of high-density polyethylene particles in an open mixer, add 8.2g of vinyl distearamide and 14g of 3,3'-diallyl bisphenol A, heat up to 175°C and mix for 15 minutes to obtain a resin mixed solution;

[0032] Step 3. Add 15g of mercapto-modified montmorillonite, 1.6mL of acetone, and 0.03g of Span 60 to the resin mixture prepared in step 2, and mix for 14min to obtain a casting solution;

[0033] Step 4. Put the casting solution obtained in step 3 in a vacuum drying oven at 75°C for 9 hours to mature and defoam, then scrape the film on a clean glass plate, and solidify it in 0°C absolute etha...

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PUM

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Abstract

The invention discloses application of a modified montmorillonite-doped composite resin filtration membrane to ink wastewater treatment, and relates to the field of chemical industry and environmentalprotection. A preparation method of the modified montmorillonite-doped composite resin filtration membrane comprises the following steps: performing a modification reaction on montmorillonite in a cysteamine hydrochloride solution, centrifuging, drying, and grinding till 20 meshes to obtain sulfhydryl-modified montmorillonite; melting high-density polyethylene particles in an open mill, adding vinyl distearamide and 3,3'-diallyl bisphenol A, mixing to obtain a mixed resin solution, adding the sulfhydryl-modified montmorillonite, acetone and Span 60 into the mixed resin solution, and continuing mixing to obtain a membrane casting solution; and curing and debubbling the membrane casting solution, then scraping to form a membrane on a clean glass plate. and curing into the membrane to obtainthe modified montmorillonite-doped composite resin filtration membrane. The modified montmorillonite-doped composite resin filtration membrane prepared by the preparation method provided by the invention has very high mechanical properties and has a very good effect of removing heavy metal ions Hg<2+>, Cr<3+> and Cu<2+> in ink wastewater.

Description

technical field [0001] The invention relates to the fields of chemical industry and environmental protection, in particular to the application of modified montmorillonite-doped composite resin filter membrane in ink wastewater treatment. Background technique [0002] The ink is a stable coarse dispersion system composed of a colorant as a dispersed phase and a binder as a continuous phase. Inks are usually mainly composed of colorants, binders and additives. Some organic pigments contain benzidine, which is carcinogenic. The ever-changing color of the ink makes the chemical composition of the wastewater quite complex, with the characteristics of high COD, high chroma, and difficult to biodegrade. Once it enters the water body, it will cause serious pollution to the water environment. Some inorganic pigments contain heavy metal elements such as lead, chromium, copper, mercury, etc., which are very harmful to human health. The water quality of ink wastewater is complex, and...

Claims

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Application Information

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IPC IPC(8): B01D71/76B01D69/02B01D67/00C02F1/28C02F101/20
CPCB01D67/0079B01D69/02B01D71/76B01D2311/2626B01D2325/24C02F1/285C02F2101/20
Inventor 管敏富
Owner 管敏富