Semi-automatic wastewater degradation device and method based on laser-generated cavitation

Abstract

The invention relates to a semi-automatic wastewater degradation device and method based on laser-generated cavitation; and the semi-automatic wastewater degradation device comprises a laser-generatedcavitation device mechanical structural body, a driving mechanism and a control system. The mechanical structural body comprises a screw rod and nut mechanism, a gear and rack mechanism, a sleeve mechanism and a universal wheel mechanism; the screw rod and nut mechanism and the gear and rack mechanism are respectively connected with a stepping motor of the driving mechanism to control lifting andfront-and-back movement of a laser beam when the device works; and the universal wheel mechanism is convenient to carry and transfer the device. The control system is remotely operated by a PC (personal computer) machine end through a WIFI (wireless fidelity) module, a related control quantity is transferred to a PLC (programmable logic controller), and the PLC controls a motor driver to drive running of the screw rod and nut mechanism and the gear and rack mechanism and controls a camera to carry out real-time display on a working state of the device on a PC machine. According to the invention, a laser-generated cavitation device is remotely operated to enable the laser beam to scan liquid in an integral cavitation bin in the movement, so as to induce a great amount of cavitation groupsto sufficiently degrade wastewater.

Description

technical field [0001] The invention relates to a device and method for semi-automatically degrading wastewater based on laser cavitation, and belongs to the technical field of water pollution degradation. Background technique [0002] At present, a large amount of industrial wastewater and domestic wastewater produced in our country cannot be effectively treated, and are often directly discharged into rivers, which will bring great pollution and damage to the local environment. The cavitation phenomenon occurs in the fluid. The cavitation process is mainly accompanied by the formation, growth, pulsation and collapse of the cavitation. During this process, high temperature, high pressure, discharge, luminescence and shock waves are usually generated, thereby interrupting the water The chemical bonds of the molecules generate free radicals with strong oxidizing effect, and react with organic matter to degrade sewage. [0003] At present, sewage treatment using the cavitation...

AI Technical Summary

Problems solved by technology

[0004] The relevant laser equipment only focuses on one or more points in the cavitation chamber in the form of a single beam or multiple beams of parallel light, and cannot effectively induce cavitation in the wastewater in the entire cavitation chamber, making the efficiency of laser cavitation degradation of wastewater relatively low. Low, and multiple beams greatly increase the cost of the equipment and reduce the power of the laser

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