Method for coupling treatment of sewage water of waterpower cavitation and ozone

Abstract

Disclosed is a method for treating sewage by hydrodynamic cavitation and ozone coupling, which is characterized in that: the sewage treatment technique is composed of a centrifugal pump, an ozone generator and a cavitation generator and is realized by utilizing the cavitation effect produced by hydrodynamic cavitation and strong oxidation and coupling functions of ozone, the ozone produced by the ozone generator is doped into the sewage to enter the cavitation generator together and produce the cavitation effect in the cavitation generator, the contact area of ozone and sewage is increased through the micro-jet produced in a cavitation region, so as to extend the action time of ozone in sewage and change the amount of gas nucleus and distribution of gas nucleus in sewage, degrade oxygen consuming matters in the sewage, improve the coupling effect of cavitation and ozone, and achieve the purpose of reducing sewage COD, and the treated sewage can surely reach the required COD indexes by adjusting the treatment grade as required. Compared with the prior art, the technique has the advantages of simple process flow, convenient operation, high energy utilization ratio, strong adaptability, high efficiency, large treatment capacity, non secondary pollution and low cost.

Description

1. Technical field [0001] The invention relates to a method for treating sewage by coupling hydraulic cavitation and ozone. The method utilizes the coupling synergy of the cavitation effect produced by the sewage passing through the cavitation generator and the incorporated ozone gas flow to degrade the oxygen-consuming substances in the sewage, so as to achieve the purpose of reducing the COD of the sewage. 2. Background technology [0002] The composition of oil field produced water is relatively complex: it is not only polluted by crude oil, but also dissolves various salts and gases in the formation in the high temperature and high pressure oil layer; in the process of oil production, it carries many suspended solids from the oil layer; Various chemical agents are also added in the process of oil and gas gathering and transportation and crude oil dehydration; there are a lot of organic matter in the produced water, and there is an environment suitable for the growth and ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for coupling hydraulic cavitation and ozone to treat sewage, to solve the problems of high cost, secondary pollution, poor biodegradability, and refractory degradation faced by the above sewage treatment, and to make up for the shortcomings and deficiencies of the existing technology , to provide a low-cost, high-efficiency technology for reducing sewage COD

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