Fenton oxidation reaction tank for organic wastewater treatment

Abstract

The invention discloses a Fenton oxidation reaction tank for organic wastewater treatment, and relates to the technical field of sewage treatment. The Fenton oxidation reaction tank for organic wastewater treatment comprises a first tank body, the bottom of the first tank body is fixedly connected with a base, the top of the first tank body is fixedly connected with a second tank body, the top of the first tank body is fixedly connected with a water inlet pipeline, and the interior of the first tank body is fixedly connected with a secondary wastewater treatment mechanism. A first-stage wastewater treatment mechanism is fixedly connected to the interior of the second tank body and comprises first fan blades, and the first fan blades are arranged in the second tank body. According to the Fenton oxidation reaction tank for organic wastewater treatment, by arranging a scraper, after a second motor is started, an output bearing of the second motor drives a gear belt to rotate, so that impurities suspended in the second tank body are scraped into a collecting tank by the scraper, and colloidal impurities, fiber impurities and the like in printing and dyeing wastewater are prevented from influencing the Fenton reaction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a Fenton oxidation reaction tank for organic wastewater treatment. Background Art

[0002] Fenton oxidation reaction has a high ability to remove refractory organic pollutants and is widely used in the treatment of printing and dyeing wastewater, oily wastewater, phenolic wastewater, coking wastewater, nitrobenzene-containing wastewater, diphenylamine wastewater and other wastewater.

[0003] The patent cited in China with publication number "CN211170194U" discloses a Fenton reaction device for spray water treatment, including a Fenton reaction tower. A sewage inlet pipe, a ferrous sulfate inlet pipe, a hydrogen peroxide inlet pipe, a reflux water inlet pipe and a sewage discharge pipe are arranged at the bottom of the Fenton reaction tower. An overflow weir is welded on the top of the Fenton reaction tower. The overflow weir is provided with a treated water outlet pipe and a reflux water outlet pipe. The sewage inlet pipe flange is connected to a water distribution main pipe. A water distribution branch pipe is arranged on the water distribution main pipe. A nozzle is welded on the upper surface of the water distribution branch pipe. A guide rod is arranged in the center of the nozzle. The bottom end of the guide rod is fixedly connected to the inner wall of the water distribution branch pipe. The guide rod is fixedly connected to a cone cap.

[0004] The composition of printing and dyeing wastewater is complex, including a large amount of dyes, colloidal impurities and fiber impurities. The colloidal impurities and fiber impurities will scatter and absorb the Fenton reagent, making the reaction unable to proceed effectively, affecting the efficiency and treatment effect of the Fenton reaction. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a Fenton oxidation reaction tank for treating organic wastewater to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A Fenton oxidation reaction tank for treating organic wastewater, comprising a first tank body, the bottom of the first tank body is fixedly connected to a base, the top of the first tank body is fixedly connected to a second tank body, the top is fixedly connected to a water inlet pipe, the interior of the first tank body is fixedly connected to a secondary wastewater treatment mechanism, and the interior of the second tank body is fixedly connected to a primary wastewater treatment mechanism;

[0007] Primary wastewater treatment institutions include:

[0008] a first fan blade, wherein the first fan blade is arranged inside the second tank body;

[0009] a first pipeline, the bottom of the second tank body being fixedly connected to the first pipeline;

[0010] A second rotating bearing is rotatably connected inside the second tank body, a gear belt is slidably connected to the surface of the second rotating bearing, a scraper is fixedly connected to the surface of the gear belt, and a through hole is opened on the surface of the scraper.

[0011] Preferably, a rotating bearing is fixedly connected to the surface of the first fan blade, one end of the rotating bearing is rotatably connected to the first motor, a collecting trough is fixedly connected to the side of the second tank body, and a first baffle is fixedly connected to the interior of the collecting trough.

[0012] Preferably, one end of the first pipe is fixedly connected to a filter, the other end of the first pipe is fixedly connected to a second pipe, the interior of the first pipe is rotatably connected to a second fan blade, and an electromagnetic valve is provided inside the first pipe, and an electromagnetic control valve is provided on the surface of the electromagnetic valve.

[0013] Preferably, a polyferric sulfate addition pipe is fixedly connected to the side of the second tank body, one end of the second rotating bearing is rotatably connected to the second motor, the surface of the second tank body is fixedly connected to the second motor, the interior of the second tank body is fixedly connected to a second baffle, the side of the second tank body is fixedly connected to an air compressor, one end of the air compressor is fixedly connected to a third pipe, and the surface of the third pipe is fixedly connected to an air outlet.

[0014] Preferably, the secondary wastewater treatment mechanism includes a third motor, the top of the first tank body is fixedly connected to the third motor, one end of the third motor is rotatably connected to a third rotating bearing, the surface of the third rotating bearing is fixedly connected to a third fan blade, and the number of the third fan blades is four.

[0015] Preferably, a first telescopic machine is fixedly connected to the interior of the first tank body, a second telescopic machine is fixedly connected to the interior of the first tank body, a fourth pipe is provided inside the first tank body, a fifth pipe is provided inside the first tank body, and a support column is fixedly connected to the top of the first tank body.

[0016] Preferably, the interior of the fifth pipeline is slidably connected to the first piston, the axis of the first piston is rotatably connected to the first telescopic machine through a bearing, the interior of the fourth pipeline is slidably connected to the second piston, and the fourth pipeline and the fifth pipeline are symmetrically arranged through the axis of the first tank body.

[0017] Preferably, the top of the fourth pipe is fixedly connected to the second pipe, the top of the fifth pipe is fixedly connected to the Fenton reagent addition pipe, the surface of the first tank body is fixedly connected to the Fenton reagent addition pipe, and the interior of the first tank body is fixedly connected to a drain pipe.

[0018] The present invention provides a Fenton oxidation reaction tank for treating organic wastewater. It has the following beneficial effects:

[0019] 1. A Fenton oxidation reaction tank for treating organic wastewater has a through hole at the bottom of the water inlet pipe to initially filter the insoluble large particles in the wastewater, and add polyferric sulfate into the second tank body. Then, the impurities in the solution after the reaction adhere to the bubbles and then float on the water surface. Secondly, PFC will release a certain amount of iron ions in the water. These iron ions can provide more catalysts for the Fenton reaction, promote the progress of the Fenton reaction, and thus improve the efficiency and treatment effect of the Fenton reaction.

[0020] 2. The Fenton oxidation reaction tank for treating organic wastewater is provided with a scraper. When the second motor is started, the output bearing and the second rotating bearing drive the gear belt to rotate, so that the scraper scrapes the impurities suspended inside the second tank into the collecting tank, thereby preventing the colloidal impurities and fiber impurities in the printing and dyeing wastewater from affecting the efficiency and treatment effect of the Fenton reaction.

[0021] 3. The Fenton oxidation reaction tank for treating organic wastewater is provided with a third fan blade. When the third motor is started, the third rotating bearing of its output bearing rotates, driving the third fan blade to rotate, thereby avoiding the situation where the local reactant concentration is too high or too low, and preventing uneven reaction due to concentration differences, thereby improving the efficiency and treatment effect of the Fenton reaction.

[0022] 4. The Fenton oxidation reaction tank for treating organic wastewater is provided with a fifth pipe and a fourth pipe, and a piston is provided inside the fifth pipe. The first telescopic machine and the second telescopic machine can control the injection of wastewater and Fenton reagent at any time, reduce the frequency and intensity of manual operation, reduce human errors, improve production efficiency and operation stability, and can accurately add the amount, adjust the addition speed and amount of the reagent in real time according to the progress of the reaction, so that the reaction is always maintained at a high efficiency level, shorten the reaction time, and thus improve the efficiency and treatment effect of the Fenton reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 is a cross-sectional view of a second tank body of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0028] Figure 6 For the present invention Figure 4 Enlarged view of point C in the middle;

[0029] Figure 7 It is a cross-sectional view of the first tank body of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of point D in the middle.

[0031] In the figure: 1, first tank; 2, base; 3, water inlet pipe; 4, second tank; 5, primary wastewater treatment mechanism; 51, first motor; 52, rotating bearing; 53, first fan blade; 54, second motor; 55, second rotating bearing; 56, gear belt; 57, scraper; 58, filter; 59, first pipeline; 510, electromagnetic valve; 511, electromagnetic control valve; 512, second fan blade; 513, second pipeline; 514, first baffle; 515, collection tank; 516, polyferric sulfate addition tube; 517, second baffle; 518, air compressor; 519, third pipeline; 520, air outlet; 6, secondary wastewater treatment mechanism; 61, third motor; 62, third rotating bearing; 63, third fan blade; 64, fourth pipeline; 65, first telescopic machine; 66, first piston; 67, support column; 68, fifth pipeline; 69, Fenton reagent addition tube; 610, drain pipe; 611, second telescopic machine; 612, second piston. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] Example 1: Please refer to Figure 1-6 The present invention provides a technical solution: a Fenton oxidation reaction tank for treating organic wastewater, comprising a first tank body 1, a base 2 is fixedly connected to the bottom of the first tank body 1, a second tank body 4 is fixedly connected to the top of the first tank body 1, a water inlet pipe 3 is fixedly connected to the top of the first tank body 1, a secondary wastewater treatment mechanism 6 is fixedly connected to the inside of the first tank body 1, and a primary wastewater treatment mechanism 5 is fixedly connected to the inside of the second tank body 4;

[0035] The primary wastewater treatment institutions 5 include:

[0036] A first fan blade 53, the first fan blade 53 is arranged inside the second tank body 4;

[0037] A first pipe 59 is fixedly connected to the bottom of the second tank body 4;

[0038] The second rotating bearing 55 is rotatably connected inside the second tank body 4, and a gear belt 56 is slidably connected to the surface of the second rotating bearing 55. A scraper 57 is fixedly connected to the surface of the gear belt 56, and a through hole is opened on the surface of the scraper 57.

[0039] A rotating bearing 52 is fixedly connected to the surface of the first fan blade 53 , one end of which is rotatably connected to the first motor 51 . A collecting tank 515 is fixedly connected to the side of the second tank body 4 , and a first baffle 514 is fixedly connected to the interior of the collecting tank 515 .

[0040] One end of the first pipe 59 is fixedly connected to the filter 58, the other end of the first pipe 59 is fixedly connected to the second pipe 513, the interior of the first pipe 59 is rotatably connected to the second fan blade 512, and the interior of the first pipe 59 is provided with an electromagnetic valve 510, and the surface of the electromagnetic valve 510 is provided with an electromagnetic control valve 511.

[0041] A polyferric sulfate addition pipe 516 is fixedly connected to the side of the second tank body 4, one end of the second rotating bearing 55 is rotatably connected to the second motor 54, the surface of the second tank body 4 is fixedly connected to the second motor 54, the interior of the second tank body 4 is fixedly connected to a second baffle 517, the side of the second tank body 4 is fixedly connected to an air compressor 518, one end of the air compressor 518 is fixedly connected to a third pipe 519, and the surface of the third pipe 519 is fixedly connected to an air outlet 520.

[0042] During use, after the wastewater enters the water inlet pipe 3, it is initially filtered through the through hole opened at the bottom and falls into the second tank body 4. Then, polyferric sulfate is added from the polyferric sulfate addition pipe 516. At the same time, the first motor 51 is started, and its output bearing rotating bearing 52 drives the first fan blade 53 to rotate to avoid the situation where the local reactant concentration is too high or too low, and to prevent uneven reaction due to concentration difference. At the same time, the air compressor 518 is started to inject bubbles into the water, so that the impurities in the water adhere to the bubbles and float on the surface of the wastewater. Then, the second motor 54 is started, and its output bearing second rotating bearing 55 drives the gear belt 56 to rotate, so that the scraper 57 fixedly connected to the surface of the gear belt 56 scrapes the impurities floating on the water surface into the collection tank 515. Then, the electromagnetic control valve 511 is started, and the wastewater after primary treatment falls into the fourth pipe 64 along the first pipe 59.

[0043] By opening a through hole at the bottom of the water inlet pipe 3, the insoluble large particles in the wastewater are initially filtered, and polyferric sulfate is added to the second tank 4. Then, the impurities in the solution after the reaction adhere to the bubbles and then float on the water surface. Secondly, PFC will release a certain amount of iron ions in the water. These iron ions can provide more catalysts for the Fenton reaction, promote the progress of the Fenton reaction, thereby improving the efficiency and treatment effect of the Fenton reaction.

[0044] By setting the scraper 57, when the second motor 54 is started, its output bearing, the second rotating bearing 55, drives the gear belt 56 to rotate, so that the scraper 57 scrapes the impurities suspended inside the second tank 4 into the collecting tank 515, thereby preventing the colloidal impurities and fiber impurities in the printing and dyeing wastewater from affecting the efficiency and treatment effect of the Fenton reaction.

[0045] Example 2: Please refer to Figure 1-8 Based on the first embodiment, the present invention provides a technical solution:

[0046] The secondary wastewater treatment mechanism 6 includes a third motor 61, the top of the first tank body 1 is fixedly connected to the third motor 61, one end of the third motor 61 is rotatably connected to a third rotating bearing 62, the surface of the third rotating bearing 62 is fixedly connected to a third fan blade 63, and the number of the third fan blades 63 is four.

[0047] A first telescopic machine 65 is fixedly connected to the interior of the first tank body 1 , a second telescopic machine 611 is fixedly connected to the interior of the first tank body 1 , a fourth pipe 64 is provided inside the first tank body 1 , a fifth pipe 68 is provided inside the first tank body 1 , and a support column 67 is fixedly connected to the top of the first tank body 1 .

[0048] The interior of the fifth pipe 68 is slidably connected to the first piston 66, the axis of the first piston 66 is rotatably connected to the first telescopic machine 65 through a bearing, the interior of the fourth pipe 64 is slidably connected to the second piston 612, and the fourth pipe 64 and the fifth pipe 68 are symmetrically arranged through the axis of the first tank body 1.

[0049] The top of the fourth pipe 64 is fixedly connected to the second pipe 513 , the top of the fifth pipe 68 is fixedly connected to the Fenton reagent addition pipe 69 , the surface of the first tank body 1 is fixedly connected to the Fenton reagent addition pipe 69 , and the interior of the first tank body 1 is fixedly connected to the drain pipe 610 .

[0050] When in use, the second telescopic machine 611 is started, and its output bearing drives the second piston 612 to move, so as to control the discharge of waste water in the fourth pipe 64. Then, the first telescopic machine 65 is started, and its output bearing drives the first piston 66 to move, so as to control the discharge of Fenton reagent in the fifth pipe 68. Then, the third motor 61 is started, and its output bearing and the third rotating bearing 62 drive the third fan blade 63 to rotate, so as to avoid the situation where the concentration of local reactants is too high or too low, and to prevent the uneven reaction caused by the concentration difference, so as to improve the efficiency and treatment effect of the Fenton reaction.

[0051] By setting the third fan blade 63, when the third motor 61 is started, its output bearing, the third rotating bearing 62, rotates, driving the third fan blade 63 to rotate, thereby avoiding the situation where the local reactant concentration is too high or too low, and preventing uneven reaction due to concentration differences, thereby improving the efficiency and treatment effect of the Fenton reaction.

[0052] By setting the fifth pipeline 68 and the fourth pipeline 64 and setting pistons inside them, the first telescopic machine 65 and the second telescopic machine 611 can control the injection of wastewater and Fenton reagent at any time, reduce the frequency and intensity of manual operation, reduce human errors, improve production efficiency and operational stability, and can accurately add the amount, adjust the addition speed and amount of the reagent in real time according to the progress of the reaction, so that the reaction always maintains a high efficiency level, shortens the reaction time, and improves the efficiency and treatment effect of the Fenton reaction.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A Fenton oxidation reaction tank for treating organic wastewater, comprising a first tank body (1), characterized in that: The bottom of the first tank body (1) is fixedly connected to a base (2), the top of the first tank body (1) is fixedly connected to a second tank body (4), the top of the (4) is fixedly connected to a water inlet pipe (3), the interior of the first tank body (1) is fixedly connected to a secondary wastewater treatment mechanism (6), and the interior of the second tank body (4) is fixedly connected to a primary wastewater treatment mechanism (5); Primary wastewater treatment institutions (5) include: A first fan blade (53), wherein the first fan blade (53) is arranged inside the second tank body (4); a first pipe (59), the bottom of the second tank (4) being fixedly connected to the first pipe (59); A second rotating bearing (55), the interior of the second tank body (4) is rotatably connected to the second rotating bearing (55), the surface of the second rotating bearing (55) is slidably connected to a gear belt (56), the surface of the gear belt (56) is fixedly connected to a scraper (57), and the surface of the scraper (57) is provided with a through hole.

2. The Fenton oxidation reaction tank for treating organic wastewater according to claim 1, characterized in that: A rotating bearing (52) is fixedly connected to the surface of the first fan blade (53), one end of the rotating bearing (52) is rotatably connected to a first motor (51), a collecting trough (515) is fixedly connected to the side of the second tank body (4), and a first baffle (514) is fixedly connected inside the collecting trough (515).

3. The Fenton oxidation reaction tank for treating organic wastewater according to claim 1, characterized in that: One end of the first pipe (59) is fixedly connected to a filter screen (58), the other end of the first pipe (59) is fixedly connected to a second pipe (513), the interior of the first pipe (59) is rotatably connected to a second fan blade (512), and an electromagnetic valve (510) is provided inside the first pipe (59), and an electromagnetic control valve (511) is provided on the surface of the electromagnetic valve (510).

4. The Fenton oxidation reaction tank for treating organic wastewater according to claim 1, characterized in that: A polyferric sulfate addition pipe (516) is fixedly connected to the side of the second tank body (4), one end of the second rotating bearing (55) is rotatably connected to the second motor (54), the surface of the second tank body (4) is fixedly connected to the second motor (54), the interior of the second tank body (4) is fixedly connected to a second baffle (517), the side of the second tank body (4) is fixedly connected to an air compressor (518), one end of the air compressor (518) is fixedly connected to a third pipe (519), and the surface of the third pipe (519) is fixedly connected to an air outlet (520).

5. The Fenton oxidation reaction tank for treating organic wastewater according to claim 1, characterized in that: The secondary wastewater treatment mechanism (6) comprises a third motor (61), the top of the first tank body (1) is fixedly connected to the third motor (61), one end of the third motor (61) is rotatably connected to a third rotating bearing (62), a surface of the third rotating bearing (62) is fixedly connected to a third fan blade (63), and the number of the third fan blades (63) is four.

6. The Fenton oxidation reaction tank for treating organic wastewater according to claim 1, characterized in that: A first telescopic machine (65) is fixedly connected to the interior of the first tank body (1), a second telescopic machine (611) is fixedly connected to the interior of the first tank body (1), a fourth pipe (64) is provided inside the first tank body (1), and a fifth pipe (68) is provided inside the first tank body (1), and a support column (67) is fixedly connected to the top of the first tank body (1).

7. The Fenton oxidation reaction tank for treating organic wastewater according to claim 6, characterized in that: The interior of the fifth pipe (68) is slidably connected to the first piston (66); the axis of the first piston (66) is rotatably connected to the first telescopic machine (65) via a bearing; the interior of the fourth pipe (64) is slidably connected to the second piston (612); and the fourth pipe (64) and the fifth pipe (68) are symmetrically arranged through the axis of the first tank body (1).

8. The Fenton oxidation reaction tank for treating organic wastewater according to claim 6, characterized in that: The top of the fourth pipe (64) is fixedly connected to the second pipe (513), the top of the fifth pipe (68) is fixedly connected to the Fenton reagent addition pipe (69), the surface of the first tank body (1) is fixedly connected to the Fenton reagent addition pipe (69), and the interior of the first tank body (1) is fixedly connected to a drainage pipe (610).

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