Fatty acid modified adsorption resin, preparation method and method for treating anionic surfactant wastewater by using fatty acid modified adsorption resin

Abstract

The invention discloses a fatty acid modified adsorption resin and a preparation method thereof. The preparation method comprises the following steps of 1) carrying out suspension copolymerization on an aromatic polyvinyl monomer, an acrylate monomer and an unsaturated fatty acid monomer to obtain a fatty acid modified porous white ball, and (2) immersing the fatty acid modified porous white balls obtained in the step (1) into cation exchange liquid to obtain the fatty acid modified adsorption resin. The resin provided by the invention is especially suitable for treating the adsorption and recovery of wastewater containing an anionic surfactant, the treated wastewater reaches the standard and is discharged, and a feasible solution is provided for the treatment of civil and industrial washing, bleaching and dyeing wastewater.

Description

technical field

[0001] The invention belongs to the technical field of sewage treatment, specifically relates to a fatty acid modified adsorption resin and a preparation method thereof, and also relates to a method for using the resin to treat waste water, especially washing waste water containing anionic surfactants. Background technique

[0002] Anionic surfactants are the products with the largest output and the most varieties among surfactants. Among them, the straight-chain sulfonic acid / sodium sulfate represented by sodium dodecylbenzenesulfonate and sodium dodecylsulfate is one of the most widely used washing and dyeing reagents in civil and industrial fields. Good sex, stable performance, low price and other advantages, its output accounts for more than 90% of the total output of synthetic detergents. At the same time, the above-mentioned substances are also an important harmful component in washing, bleaching and dyeing wastewater, and the direct discharge of a lar...