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Micro-nano bubble generation device, and micro-nano bubble treatment method for oily wastewater

A micro-nano bubble generation device technology, which is applied in mining wastewater treatment, flotation water/sewage treatment, separation methods, etc., can solve the problems of high energy consumption, large bubble size dispersion, and large operating noise, so as to reduce energy consumption. power consumption, high oscillation frequency, the effect of subtracting energy consumption

Inactive Publication Date: 2020-01-10
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a micro-nano bubble generating device, the purpose of which is to solve the problems of large dispersion of bubble size, high operating noise and high energy consumption in the existing micro-nano bubble treatment scheme for oily wastewater

Method used

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  • Micro-nano bubble generation device, and micro-nano bubble treatment method for oily wastewater
  • Micro-nano bubble generation device, and micro-nano bubble treatment method for oily wastewater
  • Micro-nano bubble generation device, and micro-nano bubble treatment method for oily wastewater

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Embodiment 1

[0033] Such as figure 1 and figure 2 As shown, Embodiment 1 of the present invention provides a micro-nano bubble generating device, including a gas source 1, a jet oscillator 2, a diffuser 3 and a waste liquid tank 4, wherein the gas source 1 passes through the first pipeline 5 and the jet The inlet 6 on the oscillator 2 is connected, the diffuser 3 is arranged in the waste liquid tank 4 , and communicates with the outlet 8 on the jet oscillator 2 through the second pipeline 7 . The airflow sent from the air source 1 is introduced into the jet oscillator 2 by the first pipeline 5 to form a self-excited oscillating jet, and then is introduced into the diffuser 3 from the outlet 8 through the second pipeline 7, and the liquid in the waste liquid tank 4 The action produces micro-nano bubbles.

[0034] The air flow passes through the oscillating part in the jet oscillator 2 to form a self-excited oscillating jet, wherein the oscillating part includes an oscillating cavity 9 , ...

Embodiment 2

[0041] This embodiment provides a micro-nano bubble treatment method for oily wastewater, including step 1, filling about 8L of oily wastewater 16 into the waste liquid tank 4, setting the diffuser 3 at the bottom of the waste liquid tank 4, and diffusing The device 3 and the waste liquid tank 4 are connected with the first output channel 14, and the valve on the second pipeline 7 of the second output channel 15 is closed, and an exhaust passage is set at the top of the waste liquid tank 4 to communicate with the atmosphere; The source 1 drives 0.4 MPa gas into the jet oscillator 2 to form a self-excited oscillating jet, and part of the self-excited oscillating jet is introduced into the diffuser 3 through the second pipeline 7, and the waste liquid filled with oily wastewater 16 Micro-nano bubbles with a diameter of 1 nm to 50 μm are generated in the tank 4; step 3, the jet oscillator 2 is ventilated continuously for 4 hours through the air source, and the oily wastewater 16 i...

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Abstract

The invention provides a micro-nano bubble generation device, and a micro-nano bubble treatment method for oily wastewater. The micro-nano bubble generation device comprises an air source, a jet oscillator, a diffuser and a waste liquid tank, the air source is communicated with an inlet arranged at the jet oscillator through a first pipeline, the diffuser is arranged in the waste liquid tank and is communicated with an outlet arranged at the jet oscillator through a second pipeline, and an oscillating part is arranged in the jet oscillator. The micro-nano bubble treatment method for the oily wastewater comprises the following steps: filling the waste liquid tank with the oily wastewater, arranging the diffuser at the bottom of the waste liquid tank, opening the air source opened to drive airflow into the jet flow oscillator to form self-oscillation jet flow, guiding a part of the self-oscillation jet flow into the diffuser through the second pipeline in order to generate micro-nano bubbles in the waste liquid tank, and performing continuous ventilation by the air source to treat the oily wastewater. The device and the method have the advantages of stable bubble size, low energy consumption of the system, simple structure, and convenience in assembling of a modular treatment system.

Description

technical field [0001] The invention relates to the technical field of micro-nano bubbles, in particular to a micro-nano-bubble generating device and a micro-nano-bubble treatment method for oily wastewater. Background technique [0002] Most of my country's oilfields have entered the period of high water-cut exploitation. The comprehensive water content of crude oil is mostly above 80%, and the water content of produced fluid is rising continuously. The direct discharge of a large amount of sewage generated in the process of oilfield exploitation will easily cause serious environmental pollution and lead to waste water treatment. Quantity grows faster. With the improvement of national environmental protection requirements and the proposal of energy conservation and emission reduction policies, wastewater treatment technology has become an important factor affecting the sustainable development of oilfields. Therefore, the harmless treatment or resource utilization of oilfiel...

Claims

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Application Information

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IPC IPC(8): C02F1/24C02F1/40C02F103/10
CPCC02F1/24C02F1/40C02F2103/10
Inventor 唐禄博张鑫鑫张绍和马立科
Owner CENT SOUTH UNIV