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Agent for purifying production wastewater of water-based paint and preparation method of agent

A technology for the production of wastewater and water-based coatings, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of low purification efficiency of production wastewater, easy breeding of bacteria in production wastewater, and no bactericidal effect To achieve the effect of improving the purification effect of wastewater, improving the mixing effect of materials, and improving the sterilization effect

Inactive Publication Date: 2019-04-12
黄婷静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production of water-based coatings, usually due to the use of emulsions and additives as raw materials, it is easy to breed bacteria in the production wastewater
At present, some traditional flocculants are used for sedimentation and separation in the treatment of water-based paint production wastewater. However, the purification efficiency of water-based paint production wastewater is low, and at the same time, there is no good bactericidal effect

Method used

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  • Agent for purifying production wastewater of water-based paint and preparation method of agent
  • Agent for purifying production wastewater of water-based paint and preparation method of agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A water-based paint production wastewater purification agent, comprising the following raw materials in parts by weight: 24 parts of polyacrylamide, 26 parts of polyaluminum chloride, 30 parts of diatomite, 3 parts of silica, 7 parts of high alumina bauxite, sodium chlorate 4 parts, 3 parts of ferrous chloride, 0.8 part of calcium oxide; wherein, the particle size of the silica is 400 mesh; the particle size of the polyacrylamide and polyaluminum chloride is 100 mesh; by using polyaluminum chloride, Diatomite, silica, high-alumina bauxite, polyacrylamide, sodium chlorate, ferrous chloride, calcium oxide, etc. are used as raw materials to reasonably compound into a purifying agent, which has a good purification effect on water-based paint production wastewater; through silica , high alumina bauxite and diatomite cooperate with each other to play a synergistic effect, which can effectively improve the bactericidal effect and effectively reduce the COD content, which in tur...

Embodiment 2

[0028] A water-based paint production wastewater purification agent, comprising the following raw materials in parts by weight: 28 parts of polyacrylamide, 30 parts of polyaluminum chloride, 50 parts of diatomite, 5 parts of silica, 9 parts of high alumina bauxite, sodium chlorate 6 parts, 5 parts of ferrous chloride, and 1.2 parts of calcium oxide; wherein, the particle size of the silica is 400 mesh; the particle size of the polyacrylamide and polyaluminum chloride is 100 mesh; by using polyaluminum chloride, Diatomite, silica, high-alumina bauxite, polyacrylamide, sodium chlorate, ferrous chloride, calcium oxide, etc. are used as raw materials to reasonably compound into a purifying agent, which has a good purification effect on water-based paint production wastewater; through silica , high alumina bauxite and diatomite cooperate with each other to play a synergistic effect, which can effectively improve the bactericidal effect and effectively reduce the COD content, which i...

Embodiment 3

[0035] A water-based paint production wastewater purification agent, comprising the following raw materials in parts by weight: 26 parts of polyacrylamide, 28 parts of polyaluminum chloride, 40 parts of diatomite, 4 parts of silica, 8 parts of high alumina bauxite, sodium chlorate 5 parts, 4 parts of ferrous chloride, and 1 part of calcium oxide; wherein, the particle size of the silica is 400 mesh; the particle size of the polyacrylamide and polyaluminum chloride is 100 mesh.

[0036] In the present embodiment, the preparation method of the water-based paint production wastewater purifying agent, the steps are as follows:

[0037] 1) Weigh diatomite and high alumina bauxite respectively according to parts by weight, mix them uniformly, add them into the grinder and grind them at a rate of 1800 rpm for 30 minutes, then add vermiculite and mix them uniformly at 30°C, Mixture A is obtained;

[0038] 2) Weigh polyaluminum chloride, polyacrylamide and ferrous chloride according t...

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Abstract

The invention discloses an agent for purifying production wastewater of water-based paint, and relates to the field of chemical engineering. The agent for purifying the production wastewater of the water-based paint is prepared from polyaluminum chloride, diatomaceous earth, silica, high alumina bauxite, polyacrylamide, sodium chlorate, ferrous chloride and calcium oxide. The invention further discloses a preparation method of the agent for purifying the production wastewater of the water-based paint. In order to solve the problem that a traditional flocculating agent has low efficiency of purifying the production wastewater of the water-based paint and a poor sterilization effect, the agent has a synergistic effect through the cooperation of silica, high alumina bauxite and diatomaceous earth and with the assistance of nitrogen atmosphere protection, the sterilization effect can be effectively improved, the COD content is effectively reduced at the same time, the improvement of the purifying treatment efficiency for the production wastewater of the water-based paint is facilitated accordingly, through step-by-step stirring and mixing, the material mixing effect is effectively improved, the improvement of the wastewater purifying effect is facilitated accordingly, and the agent has broad market prospects.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a water-based paint production wastewater purifier and a preparation method thereof. Background technique [0002] With the progress of society and the development of modern technology, people's awareness of environmental protection is also increasing. As a kind of coating that uses water as a solvent or dispersion medium, water-based coatings are widely welcomed by people because they do not contain organic solvents and conform to the concept of green environmental protection. It is non-sticky and durable, and has the characteristics of water resistance, wear resistance, aging resistance, fast drying and convenient use. [0003] Water-based paints generally include three types: water-soluble paints, water-diluted paints and water-dispersible paints (latex paints). In the production of water-based coatings, it is usually easy to breed bacteria in the production wastewater due t...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56C02F1/50C02F103/34
CPCC02F1/50C02F1/5236C02F1/56C02F2103/34
Inventor 黄婷静卢清伟卢静馨
Owner 黄婷静