A kind of adsorption treatment method of cationic dye

A cationic dye and adsorption treatment technology, which is applied in the field of cationic dye adsorption treatment, can solve the problems of inhomogeneous lignin performance, high production cost by chemical method, unsatisfactory application performance, etc., and achieves wide and convenient sources, low preparation cost, and easy The effect of industrial production
CN106698581BInactive Publication Date: 2020-05-05HEBEI UNIV OF TECH
8 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2020-05-05
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to an adsorption treatment method for cationic dye. The adsorption treatment method for the cationic dye comprises the following steps: firstly utilizing water to classify lignin into a water soluble fraction and a water insoluble fraction, then utilizing a ketone solvent to classify the water insoluble lignin fraction into a ketone soluble fraction and a ketone insoluble fraction again, and using the finally obtained water insoluble and ketone insoluble fraction for adsorbing and separating cationic dye methylene blue, cationic brilliant red, crystal violet, methyl violet and the like. The dissolution classification method only relates to dissolution classification of lignin and does not relate to chemical modification, so that the method provided by the invention has the advantages of simple technology and low cost; and water and the ketone solvent used for dissolution classification can be repeatedly utilized by recycling, and no consumption or loss is produced, so that the method provided by the invention has the advantage of being environment-friendly.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of wastewater treatment, in particular to an adsorption treatment method for cationic dyes. Background technique

[0002] With the rapid development of the printing and dyeing industry, various new dyes have been put into production and use, and the water quality of dye wastewater has become more and more complicated, and the pollution caused by it to the environment has become increasingly serious. According to the ionic state of dye molecules dissociated in aqueous solution, dyes are usually divided into: anionic dyes, cationic dyes, and nonionic dyes. Cationic dyes have quaternary ammonium cations in their molecules, and because of the basic groups in the cationic part of their molecular structure, they are also called basic dyes or basic dyes. Because of its many types, high chroma, strong toxicity, and large amount of water to be treated, it is a typical industrial wastewater that is difficult to degra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More