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 chlorideions, 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 oxidizing and degrading organic pollutants in wastewater by using activated hydrogen peroxide, in particular to a method for degrading organic pollutants in wastewater by activating hydrogen peroxide as a catalyst. Background technique [0002] With the continuous expansion of production scale and the rapid development of industrial technology, pollution sources of organic wastewater containing toxic, harmful and refractory organic wastewater are increasing. The methods of treating this type of wastewater mainly include biological, physical and chemical methods. Using existing biological treatment methods, it is more difficult to treat organic wastewater with poor biodegradability or biological toxicity; physical treatment only transfers pollutants from one place to another, but does not essentially remove pollutants; chemical methods can The direct mineralization of pollutants or the improvement of the biodegradabilit...

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