Device utilizing ozone to carry out oxidization decoloration treatment

Abstract

A device utilizing ozone to carry out oxidization decoloration treatment sequentially comprises an air source device, an ozone generator, a gas buffer tank, a booster pump, an oxidation reaction tower, a gas-liquid separation tower and a shallow-layer air floating pool. The oxidation reaction tower comprises a vessel wall, a top plate and a bottom plate, and a first partition plate and a second partition plate are sequentially sleeved in the vessel wall. A first reaction area is defined by the second partition plate, a second reaction area is defined by the first partition plate and the second partition plate, and a third reaction area is defined by the first partition plate and the vessel wall. The upper portion of the first partition plate is provided with a first communicating hole communicated with the third reaction area and the second reaction area, and the lower portion of the second partition plate is provided with a second communicating hole communicated with the second reaction area and the first reaction area. The bottom of each reaction area is provided with a gas distributing pipe, the top of the first reaction area is provided with a spraying water-distributing pipe,and the top and the bottom of the third reaction area are provided with a gas collecting pipe and a water collecting pipe respectively. The device utilizing the ozone to carry out oxidization decoloration treatment is high in ozone transferring utilizing rate, low in ozone consumption amount, small in occupied area, large in height-diameter ratio and water depth and high in pressure.

Description

Technical field [0001] The invention relates to an ozone oxidation decolorization treatment device. Background technique [0002] After pulping and papermaking and other organic wastewater are pre-treated and biologically treated, there are still a large amount of difficult-to-biodegradable organic matter in the raw water, which is difficult to treat with conventional processes, and the strong oxidizing property of ozone can cause the structure of organic matter to occur Significant changes, the organic matter of unsaturated structure is transformed into organic matter of saturated structure, and the macromolecular organic matter is transformed into small molecular organic matter. After the ozone oxidation (pre) treatment, the physical and chemical treatment can play the role of decolorization, deodorization and organic matter removal. It can even reduce the amount of chemicals used for physical and chemical treatment. [0003] The traditional ozone oxidation reactor is composed o...

AI Technical Summary

Problems solved by technology

However, there are some problems in the traditional ozone oxidation reactor, such as: the horizontal flow structure is adopted, the floor area is large, the reaction time is long, the volume is large, and the investment is large; the inside of the reactor is a cavity, the height is relatively small, and the water depth is mostly 5 meters. The pressure is small, and the transfer utilization rate of ozone gas is low; and on this basis, a longer hydraulic retention time is used, and the required ozone dosage is higher

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