Environmentally friendly paint wastewater flocculant

Abstract

The invention relates to the technical field of paint and paint waste water processing, and concretely relates to an environmentally friendly paint wastewater flocculant. The environmentally friendlypaint wastewater flocculant is composed of the following components in parts by weight: 10-20 parts of sodium hydroxide, 30-60 parts of water glass, 1-5 parts of an active agent, 2-6 parts of a stabilizer, and 2-5 parts of a coagulant aid. The environmentally friendly paint wastewater flocculant of the invention can make the paint residue have good floating property, and has the advantages of gooddehydration property and easy grinding.

Description

technical field [0001] The invention relates to the technical field of paint and paint wastewater treatment, in particular to an environment-friendly flocculant for paint wastewater. Background technique [0002] In the paint spraying process, the effective coating rate of the paint is limited. Generally, when the ordinary air spray gun is used for operation, the coating efficiency is only about 30%, even if the electrostatic spraying is used, the coating efficiency is only 60%. Left and right, that is to say, in the process of spraying operation, only part of the paint is sprayed on the workpiece, and another part is splashed in the operation room of spraying operation, forming a large amount of paint waste. At present, the treatment of paint waste is generally It is very difficult. Burning will produce a large amount of black smoke, causing secondary pollution, and the disposal of landfill garbage will cause serious harm to the environment. Therefore, making full use of pa...

AI Technical Summary

Problems solved by technology

[0002] In the paint spraying process, the effective coating rate of the paint is limited. Generally, when using an ordinary air spray gun for operation, the coating efficiency is only about 30%, even if the electrostatic spraying is used, the coating efficiency is only 60%. Left and right, that is to say, in the process of spraying operation, only part of the paint is sprayed on the workpiece, and another part is splashed in the operation room of spraying operation, forming a large amount of paint waste. At present, the treatment of paint waste is generally It is very difficult. Burning will produce a large amount of black smoke, causing secondary pollution, and the disposal of landfill garbage will cause serious harm to the environment. Therefore, making full use of paint waste and turning waste into treasure is beneficial to the limited The excellent utilization of resources is also a contribution to environmental protection; however, the recycling technology of paint waste has higher requirements on the physical properties of the waste. If the molecular structure of the paint residue has been completely destroyed, it becomes very brittle and hard, and cannot be recovered under the action of solvents. If it sticks back, the paint slag cannot be regenerated. Therefore, it is necessary to choose a suitable flocculant to saponify and dissolve the carboxyl group in the amino alkyd resin molecule in water, so that the paint slag floats up and is easy to separate, and makes the paint The slag has good dehydration and is easy to grind, which is conducive to the recycling of paint slag