System of utilizing plasma and ultrasonic waves to process organic wastewater and wastewater processing method thereof

A technology of plasma and organic wastewater, which is applied in the direction of chemical instruments and methods, wastewater treatment in processing, multi-stage water/sewage treatment, etc., can solve the problems of preventing the ozone oxidation process, high equipment cost, and large electrode consumption, etc., to achieve extended Effects of long service life, short processing time, and fast response

CN109896677AInactive Publication Date: 2019-06-18JIANGSU LIGANG SCI & TECH
10 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-06-18
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a system of utilizing plasma and ultrasonic waves to process organic wastewater. The system comprises a wastewater collector, an ultrasonic wave generator, and a plasma processing system, which is connected to the ultrasonic wave generator. The method of utilizing the system to process wastewater comprises following steps: spraying organic wastewater into the ultrasonic wave generator through a nozzle by a wastewater circulation pump after organic wastewater goes through a wastewater inlet pipeline; carrying out an ultrasonic grinding treatment; after the ultrasonic treatment, introducing organic wastewater into plasma formed by a high voltage electrode and a ground electrode, carrying out a plasma treatment, after the plasma treatment, returning the processed wastewater to the wastewater collector by a wastewater outlet pipeline, carrying out next cycle of wastewater processing, sampling wastewater through a sampling opening, detecting the amounts of all components of wastewater, and stopping the processing cycle after the wastewater becomes qualified. The hydroxyl free radicals generated in plasma reactions are used to effectively degrade degradation-resistant toxic organic pollutants; and the pollutants are radically converted into harmless organic substances.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a plasma and ultrasonic combined treatment system for organic wastewater and a method for treating wastewater. Background technique

[0002] With the rapid development of industry, my country's economy and people's living standards continue to improve, and the ensuing environmental problems have become increasingly prominent, such as printing and dyeing wastewater, coking wastewater, EDTA wastewater, petroleum wastewater, and chemical wastewater with high toxicity and high concentration that are difficult to biodegrade , Organic wastewater such as phenol wastewater and urban domestic wastewater has become a hot spot in current water treatment research.

[0003] According to relevant statistics, my country's current annual sewage discharge is about 35 billion to 40 billion cubic meters. However, the wastewater treatment rate in cities is only 15.8%, while in western d...

Examples

Embodiment Construction

[0020] Such as figure 1 Shown, a kind of plasma and ultrasonic combined treatment organic waste water system, it comprises: waste water collector 7, ultrasonic generator 8 and the plasma treatment system that is connected with ultrasonic generator; Said waste water collector 7 and ultrasonic generator 8 They are connected by a water inlet pipe 9, the water inlet pipe 9 is provided with a waste water circulating pump 5, one end of the water inlet pipe 9 is located at the bottom of the waste water collector 7, and the end of the other end is provided with a nozzle 6, and the nozzle 6 Set in the ultrasonic generator 8; the plasma processing system includes a pulse power supply 1, a high-voltage electrode 3, a ground electrode 2 and a grounding device 4, the upper part of the high-voltage electrode 3 is connected with the lower part of the ultrasonic generator 8, and the high-voltage electrode 3 A fixed plate 23 is arranged between the ground electrode 2, the ground electrode 2 is...