A ring device for laser cavitation treatment of organic wastewater

Abstract

The invention relates to an annular device for laser cavitation treatment of organic wastewater, comprising an annular cavitation chamber, the annular cavitation chamber is provided with an annular incident window, and an annular laser beam emitting device is arranged above the annular incident window, A water inlet pipe and a water outlet pipe are installed on the annular cavitation chamber, a first electric shut-off valve is installed on the pipe of the water inlet pipe, and a second electric shut-off valve is installed on the pipe of the water outlet pipe. The invention transforms the optical path into an optical path forming a ring-shaped laser aperture, focusing in the ring-shaped cavitation chamber, and using an electric pump to circulate the waste water, which greatly improves the efficiency of waste water degradation and saves time. No chemical reagents are added in the process of the device, which is environmentally friendly and pollution-free.

Description

technical field [0001] The invention belongs to the technical field of water pollution degradation, in particular to a ring device for laser cavitation treatment of organic waste water. Background technique [0002] When the laser interacts with the liquid medium, if the laser can reach the breakdown threshold of the liquid medium, the liquid will be broken down to produce plasma flash, sonoluminescence and other phenomena, and the formed plasma cavity will rapidly expand and become Large, forming cavitation bubbles similar to those in hydrodynamic cavitation, accompanied by a pulsating process of "expansion-contraction-expansion", and finally burst after several cycles. When it collapses, it can release a large amount of energy, resulting in extreme environments such as local high temperature and high pressure, thus generating a large number of free radicals, which further react with organic matter and can degrade organic pollutants in wastewater. When it collapses, it can...

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a ring device for laser cavitation treatment of organic wastewater, which solves the problem of low cavitation efficiency of the square device, and has the advantages of strong controllability and high automation level.

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