Sewage treatment method

A sewage treatment method, plasma technology, applied in the sewage treatment field of plasma technology, can solve the problems of slow purification rate, electrode corrosion, unbalanced plasma discharge failure, etc., to improve the purification flow, increase the liquid flow, and improve the purification efficiency effect

Active Publication Date: 2019-11-22
DALIAN NATIONALITIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problems in the prior art that the purification rate is too slow, it is easy to cause non-equilibrium plasma discharge failure and electrode corrosion, this application proposes a sewage treatment method

Method used

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Embodiment 1

[0028] This embodiment provides a sewage treatment device, including: a liquid atomizer, an unbalanced plasma jet actuator, a flow meter, a filter, a liquid flow control valve, a gas flow control valve, a liquid storage tank, a high-pressure gas cylinder, and a valve Opening electronic controller, plasma power supply; the liquid atomizer is connected to the liquid storage tank through a flow meter, a filter, and a liquid flow control valve in sequence, and the liquid flow control valve is also connected to the valve opening electronic controller One end, the other end of the valve opening electronic controller is connected to the gas flow control valve, the gas flow control valve is located on the pipeline between the high-pressure gas cylinder and the unbalanced plasma jet actuator, the unbalanced plasma The jet exciter is connected with the plasma power supply, and the injection area at the bottom of the liquid atomizer overlaps with the jet area at one side of the unbalanced...

Embodiment 2

[0036] The present embodiment provides a sewage treatment method, comprising the steps of:

[0037] S1: The plasma power supply supplies power to the high-voltage electrode or the ground electrode with a certain voltage, and forms an electric field in the space between the high-voltage electrode and the ground electrode;

[0038] S2: The valve opening electronic controller controls the opening of the gas flow control valve, and the high-pressure gas in the high-pressure gas cylinder enters the electric field space through the gas flow control valve to form a plasma jet and eject it;

[0039] S3: The valve opening electronic controller controls the opening of the liquid flow control valve, and the liquid to be treated in the liquid reservoir passes through the liquid flow control valve, filter, and flow meter and is sprayed out in the form of a spray under the action of the liquid atomizer. And all spray fields pass through the non-equilibrium plasma jet region;

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Abstract

The invention discloses a sewage treatment method which comprises the following steps: a plasma power supply supplies power to a high-voltage electrode at a certain voltage to form an electric field in a space between the high-voltage electrode and a grounding electrode; high-pressure gas in a high-pressure gas cylinder enters the electric field space through a gas flow control valve to form plasma jet flow to be sprayed out; liquid to be treated in a liquid storage tank passes through a liquid flow control valve, a filter and a flow meter and then is sprayed out in a spraying mode under the action of a liquid atomizer; the content of a target purification substance in the purified liquid is detected; if the content of the target purification substance reaches the standard, the power supply voltage of the gas flow control valve and the high-voltage electrode is kept unchanged; if the target purification matter content does not reach the standard, the opening degree of the gas flow control valve and the power supply voltage of the high-voltage electrode are increased; and under the action of the non-equilibrium plasma jet flow, viruses, bacteria, microorganisms and other target purification substances contained in the liquid drop particles in the atomization field are killed, and a purification process is completed.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a sewage treatment method using non-equilibrium plasma technology. Background technique [0002] Compared with other existing water purification technologies, non-equilibrium plasma technology has the characteristics of high killing efficiency, low pathogen regeneration rate, and low cost of use. It is a new high-efficiency and clean water purification technology. It involves many disciplines such as chemistry, physics, electricity, environmental protection, biology, etc. It can keep the reaction system at a low temperature, save energy and equipment investment, and also enable electrons to have high enough energy to excite, ionize, and dissociate reactant molecules. So that bacteria, pollutants, algae, etc. are degraded. It has great application potential in different wastewater purification fields such as domestic sewage, medical wastewater, industrial wastewater, and ship ballast ...

Claims

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Application Information

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IPC IPC(8): C02F1/30C02F1/00
CPCC02F1/30C02F1/001C02F2303/04
Inventor 宋鹏
Owner DALIAN NATIONALITIES UNIVERSITY
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