Organic wastewater treatment device and system by utilizing solid adsorbent and low-temperature plasma desorption

Abstract

The invention belongs to the technical field of organic wastewater treatment, and particularly relates to an organic wastewater treatment device and system by utilizing solid adsorbent and low-temperature plasma desorption. The organic wastewater treatment device is composed of multi-tube parallel coaxial reaction chambers, a metal ground electrode electromagnetic shielding housing, an anode connecting ring, an insulation bracket and the like. The organic wastewater treatment system comprises the organic wastewater treatment device, a high-voltage nanosecond pulse power supply, an air pump, a water pump, an oxygen cylinder, a water storage tank, a gas phase detector and a water quality detector. According to the organic wastewater treatment device and the organic wastewater treatment system, in the condition that other chemical medicines are not introduced, a high-voltage nanosecond pulse technique and low-temperature plasma formed by dielectric barrier discharge are used as technical cores, the adsorption characteristics of the solid adsorbent on organic pollutants in wastewater and the electrical characteristic of easy gas discharge of an interior porous structure are utilized, electric energy is used as unique operating cost, and degradation treatment on the organic wastewater is greenly and efficiently performed. A plurality of reaction chambers are alternately used, so that the industrial actual demand of continuous treatment of the organic wastewater is achieved.

Description

technical field [0001] The invention belongs to the technical field of organic wastewater treatment, and in particular relates to an organic wastewater treatment device and system. Background technique [0002] At present, our country is facing a serious water pollution crisis. The water pollution problem not only restricts the sustainable development of our country's economy and society, but also endangers the life and health of us and future generations. The most difficult to treat in industrial wastewater is high-concentration and refractory industrial organic sewage. The discharged sewage contains a large amount of toxic and harmful substances that enter organisms through food and drinking water, causing permanent poisoning and chronic accumulation and variation, resulting in ecological environment damage and serious harm to people. In good health. In order to meet the needs of my country's water pollution control, the State Council promulgated the "Water Ten Measures" ...

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Problems solved by technology

[0005] (1) There are few plasma discharge channels (such as needle-plate discharge), the active components produced are limited, and the highly active groups produced during the discharge process have a small contact area with organic pollutants;

[0006] (2) The active free radicals (such as ·OH, ·H, ·O) generated by gas phase discharge (such as water surface discharge) are subject to mass transfer from gas phase to liquid phase due to their short life span (in the order of 10-100μs). Restriction, the active free radicals are not in sufficient contact with the target pollutants, and have not been effectively utilized;

[0007] (3) The plasma discharge treatment system consumes a lot of energy (such as arc discharge), and the energy utilization efficiency is low. Most of the energy provided by the power supply is converted into water body heat, and is not used for pollutant degradation;

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