Comprehensive utilization method of Cr(VI) (hexavalent chromium)-adsorbed magnetic macromolecular material

Abstract

The invention discloses a comprehensive utilization method of a Cr(VI) (hexavalent chromium)-adsorbed magnetic macromolecular material. The comprehensive utilization method comprises the following steps of firstly, collecting the Cr(VI)-adsorbed magnetic macromolecular material, uniformly mixing, cleaning in an ultrasonic wave-assisted or microwave-assisted way, magnetically separating, and activating; then, sampling, and representing; finally, applying the Cr(VI)-adsorbed magnetic macromolecular material to absorb and degrade the heavy metal, methylene blue pigment and chlorophenol environment pollutants in wastewater. The comprehensive utilization method has the advantages that the Cr(VI)-adsorbed magnetic macromolecular material NMP-Cr is collected, activated and recycled by an ultrasonic wave-assisted, magnetic separating and vacuum drying cooperating method; the dispersivity is good, the technology is simple, the recycling efficiency is high, and the like; the defects of easinessin agglomeration, poor dispersivity and the like of the magnetic composite material in the recycling process can be overcome; the morphology of the magnetic composite material is favorably stored, theprocedure and cost are reduced, and the pollution to environment due to chromium-containing waste material flowing into the environment system can be avoided.

Description

technical field [0001] The invention relates to a method for comprehensive utilization of magnetic polymer materials after adsorbing Cr(VI), in particular to a method for comprehensive utilization of magnetic polymer materials after adsorbing Cr(VI) as new adsorbents and catalysts. The invention collects, characterizes and activates the magnetic polymer material after adsorbing Cr(VI), and can efficiently and selectively adsorb and degrade heavy metals such as copper, nickel and cadmium, environmental pollutants such as methylene blue pigment and chlorophenol in waste water. Background technique [0002] With the further acceleration of the global industrialization process, industries such as iron and steel, electroplating, tanning and pigment chemistry have achieved considerable development. In the development of these industries, the role of heavy metals cannot be ignored, but at the same time, the environmental pollution caused by heavy metals has also aroused widespread ...

AI Technical Summary

Problems solved by technology

However, the composition of the waste after processing Cr(VI) is very complex, such as: different amino groups, different polymer ratios, different magnetic core contents, different Cr(VI) adsorption amounts, different adsorption conditions (such as temperature, pH Value, etc.) and other materials are mixed together to form waste; the composition and structure of the waste are unknown, so the comprehensive utilization of its system has not been effectively carried out

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