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Super-micro-bubble generation device and liquid processing method utilizing the device

A technology of ultra-fine bubbles and generating devices, applied in mixing methods, chemical instruments and methods, flotation water/sewage treatment, etc., can solve problems such as reduced efficiency, reduced gas and liquid contact efficiency, and shortened wastewater residence time by air.

Inactive Publication Date: 2015-02-11
伊耐特株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the ultrafine bubble generating device has a problem in that, since the discharge port for discharging liquid containing ultrafine bubbles is formed on the lower side of the ultrafine bubble generating device, the partially buoyant bubbles are released from the ultrafine bubble generating device. The upper part begins to accumulate, so after a long time of operation, the accumulated air will shorten the residence time of the wastewater, and the air in the ultra-fine air bubble generator needs to be discharged to the outside regularly
[0008] In particular, the ultra-fine bubbles generated in the ultra-fine-bubble generating device have the characteristic of being buoyant, and therefore, local gas and liquid are accumulated in the upper part of the ultra-fine-bubble generating device, and the gas and liquid (wastewater) The gas-liquid is limited to 4-8% by volume (for example, when the gas flow rate is 4m 3 / min, the liquid flow rate is 50-100m 3 / min), thus, the contact efficiency of gas and liquid decreases
[0009] Furthermore, the conventional ultra-fine bubble generating device has the problem that in order to overcome the decrease in efficiency due to the decrease in the contact ratio of the gas and liquid, it is necessary to inject gas into the ultra-fine bubble generating device with a higher pressure. and liquid mixture

Method used

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  • Super-micro-bubble generation device and liquid processing method utilizing the device
  • Super-micro-bubble generation device and liquid processing method utilizing the device
  • Super-micro-bubble generation device and liquid processing method utilizing the device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] As shown in FIG. 1 , an inlet 6 is connected to the lower end of a cylindrical body 4 with a height of 120 cm and a diameter of 25 cm, and a discharge port 8 is connected to the upper end.

[0087] In addition, a spiral mixed solution guide member with a diameter of 5 cm expanding in the longitudinal direction is provided inside the main body 4 and connected to the inflow port 6, and leaves upward at the top of the end 24 of the mixed solution guide member 10. A curved conflict plate 12 with a diameter of 20 cm is provided at 5 cm.

[0088] Next, add 3.5 kg to the inflow port 6 f / cm 2 The pressure supplies water mixed with air. At this time, the pressure of the discharged fluid is 1.8kg f / cm 2 .

[0089] Figure 4 It is a figure showing changes in dissolved oxygen according to the usage time of the ultrafine bubble generating device of Example 1. As can be seen from the figure, after the ultrafine bubble generating device was operated for 2 minutes, the dissolve...

Embodiment 2

[0102] Buoyancy Floating Treatment of Livestock Wastewater Using Ultrafine Bubble Generator

[0103] Such as image 3 As shown, a flocculation mixing tank 28 with a width of 1.22m, a length of 2.44m and a height of 1.53m is set, and an air flotation tank 22 with a width of 1.8m, a length of 4.6m and a height of 1.75m is set at the rear end of the flocculation mixing tank 28.

[0104] Next, a pump (centrifugal pump, WILO pump (WILO PUMP), South Korea) and an injector (Venturi injector, Mazzei, the United States) are connected in sequence to the air flotation tank 22, and then connected to the rear end of the injector The ultrafine bubble generating device 2 of Example 1 was installed.

[0105] Next, the discharge port 16 of the ultrafine bubble generating device 2 connected to the injector is connected to the air flotation tank 22 .

[0106] At this time, two agitators (propeller and paddle agitators, Korea) are installed in the flocculation mixing tank 28, and an air flotati...

Embodiment 3

[0123] Total Phosphorus Treatment of Industrial Wastewater Using Ultrafine Bubble Generator

[0124] Such as image 3 Shown, set wide 1.0m, long 1.2m, the mixing tank of high 1.7m and wide 1.5m, long 2.0m, the flocculation tank 28 of high 2.7m, set wide 2.5m at the rear end of described flocculation mixing tank 28, Long 5.0m, the air flotation pool 22 of high 2.7m.

[0125] Next, a pump (centrifugal pump, WILO pump (WILO PUMP), South Korea) and an injector (Venturi injector, Mazzei, the United States) are connected in sequence to the air flotation tank 22, and then connected to the rear end of the injector The ultrafine bubble generating device 2 of Example 1 was installed.

[0126] Next, the discharge port 16 of the ultrafine bubble generating device 2 connected to the injector is connected to the air flotation tank 22 .

[0127] At this time, two agitators (propeller and paddle agitators, Korea) are installed in the flocculation mixing tank 28, and an air flotation machin...

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Abstract

The invention relates to a super-micro-bubble generation device. The super-micro-bubble generation device comprises a main body, an inflow port, a spiral mixed stream guiding component, a conflicting plate, and a discharging port, wherein the main body extends towards the length direction and is provided with a space in the inside; the inflow port is connected to one side of the lower end of the main body; a mixed stream mixing gas and liquid flows into the main body; the spiral mixed stream guiding component is connected to the inflow port, expands upwards and provides a moving route of the mixed stream flowing into the inflow port; the conflicting plate is adjacent to the tail end of the spiral mixed stream guiding component, and is used for conflicting the mixed stream flowing through the mixed stream guiding component so as to form super-micro bubbles; the discharging port is connected to one side of the upper part of the main body and is used for discharging the liquid containing the super-micro bubbles; and the super-micro bubbles are formed through the conflicting plate.

Description

technical field [0001] The present invention relates to a device for generating ultra-fine bubbles, and more specifically, relates to a method for guiding a liquid mixture containing gas flowing into the device for generating ultra-fine bubbles so that it collides with a wall surface, and utilizes the superfine gas produced by the collision. An ultrafine bubble generating device in which fine bubbles dissolve gas in a liquid, and a liquid treatment method using the same. Background technique [0002] Generally, the activated sludge method used for biological wastewater treatment uses various microorganisms to decompose organic matter. Since the transfer efficiency of oxygen is directly related to the treatment efficiency, oxygen must be supplied during this decomposition process. The higher the transfer efficiency of oxygen, the Processing efficiency also increases. [0003] Usually, the oxygen consumed in the activated sludge process is supplied by diffusers such as air di...

Claims

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Application Information

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IPC IPC(8): B01F3/04B01F5/00C02F1/24C02F9/04
Inventor 金钟国
Owner 伊耐特株式会社