Device and method for ozone cycle treatment of organic wastewater

Abstract

The device for treating organic waste water by ozone cycle disclosed in the invention includes an oxygen steel cylinder, an ozone generator and a reactor. The reactor includes an inner cylinder and an outer cylinder which are installed coaxially. The inner cylinder is divided into two sections by an annular gap. , The middle and lower parts are respectively provided with water outlet, sampling port and water inlet. The bottom of the outer cylinder is provided with an aeration device, two air intake pipes and an aeration head extending into the bottom of the inner cylinder. There is a baffle plate in between, the top of the outer cylinder has a sealing cover with two air outlets, the first air inlet pipe is connected to the ozone generator and the aeration head, and the second air inlet pipe is connected to an air outlet on the sealing cover of the reactor and the aeration device . The device of the invention has a compact and simple structure, is easy to operate, increases the contact reaction time with the pollutants through the ozone gas cycle, improves the utilization efficiency of the ozone gas, and achieves the purpose of rapidly degrading the organic pollutants while reducing the use cost. It can be used to treat high-concentration toxic and harmful organic wastewater that is difficult to biodegrade.

Description

technical field [0001] The invention relates to a device and a method for treating organic waste water by using ozone circulation, and belongs to the fields of environmental technology and water treatment. Background technique [0002] In recent years, major environmental pollution incidents have occurred continuously in my country, directly threatening local drinking water safety, seriously affecting people's production and life, and even causing international environmental disputes and compensation. The analysis of major environmental pollution incidents at home and abroad shows that the pollutants are mainly liquid, accounting for more than 60%, and they are the main objects of emergency treatment. Therefore, the research on the rapid treatment and disposal technology for typical liquid pollutants is the top priority in the emergency technology of major pollution incidents. [0003] At the same time, the treatment of refractory organic matter is one of the research hotsp...

AI Technical Summary

Problems solved by technology

As an efficient oxidant, ozone is widely used in the field of water treatment, but it also has shortcomings. First, ozone oxidation has strong selectivity, and the oxidation process often only realizes the transformation of large molecular organic matter into small molecular organic matter in wastewater. , the mineralization ability is poor; the second is that the ozone utilization rate is not high, resulting in high ozone treatment costs

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