Novel three-dimensional electrode device for treating wastewater difficult in biologically degrading

Abstract

The invention discloses a novel three-dimensional electrode device for treating wastewater difficult in biologically degrading. The novel three-dimensional electrode device comprises electrochemical catalysis oxidization cathode electrode plates and electrochemical catalysis oxidization anode electrode plates, which are alternated in a reactor, and also comprises a micropore aeration plate arranged at the bottom of the reactor and an iron-carbon micro-electrolysis filler of a three-dimensional electrode, wherein wastewater enters the device and then sequentially enters through holes of all stages of electrode plates and then flows out, and aeration of small bubbles is carried out through micropores in the micropore aeration plate at the bottom of the reactor. According to the novel three-dimensional electrode device, main harmful pollution sources in pesticide wastewater, printing and dyeing wastewater and pharmaceutical wastewater can be efficiently degraded and removed through catalytic oxidization, and the wastewater difficult in biologically degrading is completely degraded or harmless or degradable wastewater with low-grade organic matters is generated. The novel three-dimensional electrode device has the advantages of high operation efficiency, easiness in installation and small occupation area, can ensure that COD (Chemical Oxygen Demand), TOC (Total Organic Carbon) and chroma removing rate of the wastewater difficult in biologically degrading is high due to the adoption of singe-class effluent, can be used for completely degrading toxic pollutants in the wastewater, and is stable in effluent quality.

Description

technical field [0001] The invention belongs to the technical field of biodegradable organic waste water treatment, and in particular relates to a novel three-dimensional electrode device for treating difficult biodegradable waste water. Background technique [0002] The biodegradability of organic wastewater is not only related to organic pollutants, but also related to the toxicity of wastewater. Refractory organic wastewater mainly comes from the synthetic chemical industry, and the main pollutants are a large number of organic compounds that do not exist in nature. Due to the refractory Organic compounds are not easy to be degraded by microorganisms, they must not be easily removed by the most widely used biological treatment methods at present, and after being discharged into natural environments such as water bodies, it is not easy to gradually reduce their content through natural biological self-purification, they will be in water bodies, soil It accumulates continuou...

AI Technical Summary

Problems solved by technology

Different advanced oxidation technologies have different advantages, disadvantages, and scope of application, and a single advanced oxidation technology also has unavoidable disadvantages, for example: the pH value of the Fenton method is low, and incomplete mineralization is likely to produce more toxic Degradation products; the photocatalytic oxidation method has high requirements on the chromaticity of wastewater; the strong selectivity of the ozone oxidation reaction leads to incomplete degradation; the ultrasonic oxidation degradation is not complete and the energy consumption is too large; wet oxidation and supercritical oxidation also have reactions Harsh conditions and catalyst poisoning

Images