Integrative wastewater treatment device of ozone and active carbon

Abstract

The invention relates to an integrative wastewater treatment device of ozone and active carbon, which comprises a treatment container, wherein the treatment container comprises a gas / water inlet area, a gas-water mixed area, a first active carbon bed area, a second active carbon bed area and a gas-water separation area. The gas / water inlet area is used for introducing ozone gas and wastewater, and the gas-water mixed area is abutted against the gas / water inlet area and used for enabling the ozone gas to further contact the wastewater; the first active carbon bed area is abutted against the gas-water mixed area, and a first active carbon layer comprising active carbon particles is filled into the first active carbon bed area; the second active carbon bed area is abutted against the first active carbon bed area, and a second active carbon layer comprising active carbon particles is filled into the second active carbon bed area; and the gas-water separation area is used for respectively discharging the wastewater and waste gas. Compared with the prior art, the invention develops the advantages of the active carbon by arranging the multi-layer active carbon bed areas and enhances the utilization rate of the active carbon.

Description

technical field [0001] The invention relates to an ozone and activated carbon integrated wastewater treatment device, belonging to the fields of environmental technology and water treatment. Background technique [0002] At present, although the COD (chemical oxygen demand) of the wastewater discharged from the production process of some electroplating enterprises is low, the composition is complex, the salt content is high, and the biodegradability is poor. Some substances cannot meet the secondary emission standards. Some enterprises need to reuse this part of water to reduce the discharge of waste water. [0003] Ozone oxidation technology uses ozone, an efficient oxidant, to react in water to generate various strong oxidizing free radicals, attack macromolecular organic matter in wastewater, and oxidize and decompose organic matter in water, thereby achieving the purpose of purifying water quality. Although the ozone oxidation technology has a wide range of application...

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Problems solved by technology

On the other hand, most of the organic matter is adsorbed on the bottom layer of activated carbon, and the activated carbon in this part of the bottom layer is less agitated due to more accumulation, and it is more difficult to regenerate and regenerate. The role of activated carbon is not fully utilized, and a part of activated carbon is wasted.

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