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Efficient paint mist coagulating agent and preparation thereof

A technology of paint mist coagulant and polymer polymerization, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problem of high cost, achieve the effects of reducing cost, improving production efficiency, and reducing cleaning load

Inactive Publication Date: 2009-04-15
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The paint removal rate of the paint mist coagulant is >95%, but the treatment price of the commercially available paint mist coagulant is 3 yuan / ton of waste water, which is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of Agent A:

[0026] Aluminum-modified polyferric sulfate and 6501 nonionic surfactant are added to water successively in a mass ratio of 20:1, so that the total concentration of aluminum-modified polyferric sulfate and 6501 nonionic surfactant in the solution reaches 1%- Any value in the range of 2% g / ml, such as 1%, 1.5%, 1.8%, 2% g / ml, etc., and then stirred at room temperature for 1 hour to completely dissolve it to form the A agent solution.

Embodiment 2

[0028] Preparation of agent B:

[0029] Add aluminum-modified polyacrylamide with a molecular weight of 9 to 12 million to water, so that the concentration of the solution reaches any value in the range of 0.1%-0.2% g / ml, such as 0.1%, 0.15%, 0.18%, 0.2% g / ml, etc., and then stirred at room temperature for 3 hours to completely dissolve it, and then it became the B agent solution.

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Abstract

The invention relates to a highly-efficient paint mist coagulant and an application method thereof. The paint mist coagulant includes an A reagent and a B reagent, the A reagent is a water solution mainly prepared by a modified macromolecule polymerization metal salt, the macromolecule polymerization metal salt is aluminium salt or iron salt; the B reagent is a water solution mainly prepared by a polymerization amide-type substance with molecular weight of 9 millions to 12 millions. When in application, the paint waste water is blended with the A reagent and the B reagent according to volume ratio of 500:2:1, thus leading the paint in the paint waste water to cake and float, the paint and the water are separated, clear water is obtained to reuse. The usage is firstly adding the A reagent, and adding the B reagent after even blending. The processed paint waste water is fat-soluble paint waster water and water-soluble paint waste water. The highly-efficient paint mist coagulant has a wide reagent source, effectively overcomes the disadvantages of the trivial preparation process, many and complex additional reagents and high price of the traditional paint mist coagulant, can reduce common paint waste water treatment cost to 0.25 yuan / ton and can be widely used in circulating water treatment in a wet-typed paint mist removing system.

Description

technical field [0001] The invention relates to a chemical agent for removing paint in paint-containing wastewater and a preparation method thereof. A high-efficiency paint mist coagulant and a preparation method thereof. The agent can disperse, condense, debond the paint falling into the circulating water during the painting process through physical and chemical actions such as adsorption, dispersion, destruction and decomposition, and float on the water surface for easy separation, so as to achieve long-term safe and economical water operation. Purpose. Background technique [0002] Suspending agent paint remover is an all-organic environmental protection product with unique performance. It is used to decompose and remove the adhesion of various falling paints, condense and suspend paint slag, control the biological activity of circulating water, and maintain water quality. Adjust the pH value of the circulating water to the range of 8-10 to use the best slag removal ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 曾德芳肖建国
Owner WUHAN UNIV OF TECH
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