Research On The Key Technologies Of High Consistence And Difficult Decomposition Industrial Wastewater By Ultrasonic Decompose Method

How to economically and efficiently treat organic wastewater of high consistence and difficult decomposition is always one of the difficult problems for the researchers of this field in nation and broad.In recent years, some researchers in nation and broad has done some prominent research and got some new method and technology. For example, UASB method, high temperature wet decomposer, membrane separation, light catalyze oxidation, irradiation etc. Although all of these new methods have their own traits and relatively good effect, they have some kind of problem, either in high expense or poor reliability.This project based on the problem of how to economically and efficiently treat organic wastewater of high consistence and difficult decomposition, and provided a new ultrasonic focalize decomposition method to economically and efficiently treat organic wastewater of high consistence and difficult decomposition. The main research contents are as following:In chapter I, research status quo of organic wastewater treatment of high consistence and difficult decomposition in recent years in nation and broad are discussed, advantages and disadvantages are deeply analyzed, research status quo and existent problems of organic wastewater treatment with ultrasonic are discussed in detail.In chapter 2, the mechanism of ultrasonic cavitation reaction is studied firstly, and then come up with ultrasonic cavitation effect is the cavitation effect on micro-bubble in fluid by the broadcast of ultrasonic in media., namely break some materials in the fluid to reach the aim.After research, we realized that the radius of micro-bubble is smaller the power released by cavitation effect will be bigger, but it will need bigger power for the ultrasonic. To save power, this project bring forward that decompose micro-bubble by ultrasonic focalization method. However, under...