Preparation of resin microspheres of resin microspheres in printing and dyeing wastewater treatment and application thereof

Abstract

The invention provides a preparation method of resin microspheres, which comprises the following steps: preparing 5-chloromethyl-8-hydroxyquinoline by using 8-hydroxyquinoline as a raw material, reacting with N,N'-methylene bisacrylamide to obtain an alkylated monomer, and carrying out a cross-linking polymerization reaction on the alkylated monomer, hydroxyethyl methacrylate, ferulic acid and ethylene glycol dimethacrylate to obtain resin microspheres; the invention also provides a method for treating printing and dyeing wastewater by using the resin microspheres. The method specifically comprises the following steps: rough filtration, pH adjustment, coagulating sedimentation, sand filtration, oxidative degradation, heavy metal adsorption, activated carbon decolorization, pH adjustment again and discharge or reuse. The resin microsphere disclosed by the invention has a three-dimensional network structure, has strong oxidation resistance, can efficiently degrade organic matters when being applied to printing and dyeing wastewater treatment, does not cause secondary pollution, has high heavy metal ion adsorption capacity, is easy to desorb and recycle, and can be better applied to industrial wastewater treatment.

Description

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

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AI Technical Summary

Benefits of technology

This patented technology describes various methods used to improve the performance or durability of polymer microparticles (PM) made from specific materials called octadecyl quaternary ammonium salt. These techniques include modifying the particle surfaces during synthesis process, adding different types of compounds like epoxy acids onto these particles' surfaces, create porous structures containing sulfur atoms at their ends, and increasing oxygen permeabilities while reducing iron content. By doing this, PM becomes more resistant against environmental factors such as bacteria, dissolved metals, and other substance. Additionally, it allows for efficient removal of harmful elements without being washed away due to strong cations attached thereto. Overall, this new type of coating material improves the effectiveness and reuse potential of PMBs in treating water contamination problems.

Problems solved by technology

This patented technical solution described in this patent involves improving the purification performance of printed and dyed wastes (WC) containing various types of harmful compounds like heavy metallates. Current methods involve adding expensive specialty material(s), which increases costs associated with handling these hazardous contaminated solutions. To solve this issue, there exists a desire towards developing effective ways to decompose them into less dangerous forms without requiring costly disposable equipment.

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