Organic wastewater circular treatment method based on continuous interface adsorbing medium

Abstract

The invention relates to an organic wastewater circular treatment method based on a continuous interface adsorbing medium and belongs to the field of wastewater treatment technology. The treatment method is characterized in that active carbon fiber is used as an absorbing medium for static absorption and circular absorption on the organic wastewater, then the active carbon fiber is processed by chemical electrolysis, acidic desorption and basic desorption, and finally, the active carbon fiber is heated and dried for repeating the static absorption and circular absorption on the organic wastewater. The COD value of coking wastewater treated by the method of the invention can reach 30 mg / L.

Description

technical field [0001] The invention relates to a method in the technical field of waste water purification and treatment, in particular to a method for circulating organic waste water based on a continuous interface adsorption medium. Background technique [0002] The use of activated carbon, sulfonated coal, zeolite, diatomaceous earth, coke, and sawdust to adsorb toxic substances in organic wastewater is a commonly used wastewater treatment method. This method of using the surface of the adsorbate to adsorb molecules or ions in the surrounding liquid to enrich the pollutants in the water body on the surface of the adsorbate, so as to separate them from the liquid, has strong adaptability in the field of wastewater treatment. The adsorption treatment of organic matter in organic wastewater is very effective. [0003] After searching the prior art, it was found that Meng Fanping and others recorded in "Application of Various Adsorbent Materials in the Treatment of Printing...

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Problems solved by technology

[0004] The above-mentioned adsorption materials used for the two kinds of organic wastewater are all powder or granular materials. Since the printing and dyeing wastewater and coking wastewater itself contain a large number of pollutants with complex components, although the powder adsorption medium has excellent performance in terms of pollutant adsorption. characteristics, but recovery, desorption and reuse face higher cost issues

Although the combined adsorption water treatment method helps to improve the adsorption efficiency and has a positive effect on the desorption of pollutants from the adsorbate, there are problems such as secondary pollution of the water body caused by in-situ treatment.

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