Method for oxidation degradation of wastewater organic pollutant by activating hydrogen peroxide

Abstract

The invention relates to a method which uses activated oxyful for oxidizing and degrading organic pollutants of waste water. Aiming at overcoming the defect of the complex catalyst preparation of the prior art, the invention provides a method, which is as follows: oxyful with a certain concentration and a catalyst or auxiliary catalyst acting as the activated oxyful are blended with organic wastewater to be treated, and then stirring is carried out for reaction. The catalyst acting as the activated oxyful is a supercarbonate which takes alkali metal lithium, sodium, potassium ion, alkaline-earth metal magnesium, calcium, cesium, barium ion or NH4 as an activated cation; and the auxiliary catalyst takes transition metal iron, manganese or copper as an activated cation and takes chloride ions, nitrate ion, or sulfate ion as an anionic salt. The method moderates reaction condition and has full decolorization and deodorizing effect on the treated sludge; and the COD removal rate can reach 25%-60%.

Description

technical field [0001] The invention relates to a method for oxidatively degrading organic pollutants in wastewater by using activated hydrogen peroxide, in particular to a method for degrading organic pollutants in wastewater by using bicarbonate as a catalyst to activate hydrogen peroxide. Background technique [0002] With the continuous expansion of production scale and the rapid development of industrial technology, pollution sources containing toxic, harmful and refractory organic wastewater are increasing. The methods for treating such wastewater mainly include biological, physical and chemical methods. Using existing biological treatment methods, it is difficult for organic wastewater with poor biodegradability or biological toxicity; physical treatment only transfers pollutants from one place to another, and does not remove pollutants in essence; chemical methods can It has good application prospects to directly mineralize pollutants or improve the biodegradability...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the shortcomings of the catalysts in the prior art, such as complex preparation and high price, and provides a catalyst that uses bicarbonate as the catalyst, or uses bicarbonate as the main catalyst plus a small amount of transition metal salt as a co-catalyst to activate hydrogen peroxide to degrade organic pollution in wastewater. way of things