Iron-carbon micro-electrolysis device

Abstract

The utility model belongs to the technical field of industrial wastewater treatment, and particularly relates to an iron-carbon micro-electrolysis device which comprises a tank body, and a water distribution mechanism, a first aeration mechanism, a lower filler layer, a second aeration mechanism and an upper filler layer which are arranged in the tank body, the water distribution mechanism is arranged below the lower filler layer, the first aeration mechanism is located between the water distribution mechanism and the lower filler layer, and the second aeration mechanism is located between the lower filler layer and the upper filler layer. The utility model has the beneficial effects that the lower filler layer and the upper filler layer are arranged in the tank body, the water distribution mechanism uniformly distributes water, the first aeration mechanism and the second aeration mechanism uniformly distribute air, and as the lower filler layer and the upper filler layer are continuously disturbed by wastewater and air, deposition and hardening are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of industrial wastewater treatment technology, and in particular relates to an iron-carbon micro-electrolysis device. Background Technology

[0002] Iron-carbon micro-electrolysis technology is one of the advanced water treatment processes applied to the treatment of recalcitrant industrial wastewater. It utilizes the low-voltage potential generated by the galvanic cell reaction of iron-carbon materials in wastewater to electrolyze high molecular weight organic matter and other substances in the wastewater, thereby achieving the purpose of degrading macromolecular organic pollutants.

[0003] Currently, most iron-carbon micro-electrolysis devices suffer from the problem of iron-carbon packing caking during prolonged use. Caking significantly reduces wastewater throughput and the contact area between wastewater and packing. In severe cases, it can cause blockage of the packing layer, resulting in low treatment efficiency, poor treatment effect, and increased operating costs and difficulties. Utility Model Content

[0004] The purpose of this invention is to provide an iron-carbon micro-electrolysis device to solve the problem of iron-carbon filler caking in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an iron-carbon micro-electrolysis device, characterized in that it includes a tank and a water distribution mechanism, a first aeration mechanism, a lower packing layer, a second aeration mechanism, and an upper packing layer disposed in the tank. The lower packing layer and the upper packing layer are disposed at intervals from bottom to top in the tank. The water distribution mechanism is disposed below the lower packing layer. The first aeration mechanism is located between the water distribution mechanism and the lower packing layer, and the second aeration mechanism is located between the lower packing layer and the upper packing layer.

[0006] The beneficial effects of the iron-carbon micro-electrolysis device provided by this utility model are as follows: Compared with the prior art, two packing layers, a lower packing layer and an upper packing layer, are set in the tank. The water distribution mechanism distributes water evenly, and the first aeration mechanism and the second aeration mechanism distribute air evenly. Due to the continuous disturbance of wastewater and air on the lower packing layer and the upper packing layer, sedimentation and caking are avoided.

[0007] In one embodiment, the water distribution mechanism includes an inlet pipe and multiple perforated water distribution pipes connected to the inlet pipe, the multiple perforated water distribution pipes being arranged side by side; the first aeration mechanism includes a first air inlet main pipe and an air distribution main pipe connected to the first air inlet main pipe, multiple air distribution branch pipes being provided on both sides of the air distribution main pipe, the multiple air distribution branch pipes being arranged alternately and at intervals along both sides of the air distribution main pipe; the second aeration mechanism includes a second air inlet main pipe and an air distribution main pipe connected to the second air inlet main pipe, multiple air distribution branch pipes being provided on both sides of the air distribution main pipe, the multiple air distribution branch pipes being arranged alternately and at intervals along both sides of the air distribution main pipe.

[0008] In one embodiment, the tank body is provided with a water outlet, a water inlet for the water inlet end of the water inlet pipe to pass through, a first air inlet for the air inlet end of the first air inlet pipe to pass through, and a second air inlet for the air inlet end of the second air inlet pipe to pass through. The water inlet is located on the side of the tank body near the bottom, and the water outlet is located on the side of the tank body near the top.

[0009] In one embodiment, the water inlet and the water outlet are on the same vertical line, and the first air inlet and the second air inlet are on the same vertical line.

[0010] In one embodiment, the water inlet pipe, the first air inlet main pipe, and the second air inlet main pipe are all equipped with manual butterfly valves.

[0011] In one embodiment, the tank body is further provided with a first inspection port, a second inspection port, a third inspection port and a fourth inspection port. The first inspection port is located on the lower side of the lower packing layer and is used to inspect the water distribution mechanism and the first aeration mechanism. The second inspection port is located on the outside of the lower packing layer and is used to remove the packing material from the packing layer. The third inspection port is located between the second aeration mechanism and the lower packing layer and is used to load the packing material and inspect the second aeration mechanism. The fourth inspection port is located on the outside of the upper packing layer and is used to unload the packing material from the upper packing layer.

[0012] In one embodiment, the first inspection port and the third inspection port are on the same vertical line, and the second inspection port and the fourth inspection port are on the same vertical line. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the iron-carbon micro-electrolysis device according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the water distribution mechanism of the iron-carbon micro-electrolysis device according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the aeration mechanism of the iron-carbon micro-electrolysis device according to an embodiment of the present invention.

[0017] The following are the labeling elements in the figure:

[0018] 1. Tank body; 101. Inlet; 102. Outlet; 21. Lower packing layer; 22. Upper packing layer; 3. Water distribution mechanism; 31. Inlet pipe; 32. Perforated water distribution pipe; 41. First aeration mechanism; 411. First air inlet main pipe; 412. Air distribution main pipe; 413. Air distribution branch pipe; 42. Second aeration mechanism; 51. First inspection port; 52. Second inspection port; 53. Third inspection port; 54. Fourth inspection port; 6. Manual butterfly valve. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1As shown, the iron-carbon micro-electrolysis device provided by this utility model includes a tank 1 and a water distribution mechanism 3, a first aeration mechanism 41, a lower packing layer 21, a second aeration mechanism 42 and an upper packing layer 22 disposed in the tank 1. The lower packing layer 21 and the upper packing layer 22 are disposed at intervals from bottom to top in the tank 1. The water distribution mechanism 3 is disposed below the lower packing layer 21. The first aeration mechanism 41 is located between the water distribution mechanism 3 and the lower packing layer 21. The second aeration mechanism 42 is located between the lower packing layer 21 and the upper packing layer 22.

[0024] Compared with existing technologies, the iron-carbon micro-electrolysis device provided by this utility model has two packing layers, a lower packing layer 21 and an upper packing layer 22, inside the tank 1. A water distribution mechanism 3 evenly distributes water, and a first aeration mechanism 41 and a second aeration mechanism 42 evenly distribute air. Because the lower packing layer 21 and the upper packing layer 22 are continuously disturbed by wastewater and air, sedimentation and caking are avoided. This utility model has lower equipment cost, is easy to maintain, has good treatment effect, and saves energy. It is suitable for treating recalcitrant industrial wastewater with poor biodegradability, high COD concentration, high toxicity, and high color.

[0025] In one embodiment, the water distribution mechanism 3 includes an inlet pipe 31 and multiple perforated water distribution pipes 32 connected to the inlet pipe 31, with the multiple perforated water distribution pipes 32 arranged side by side. The first aeration mechanism 41 includes a first air inlet main pipe 411 and an air distribution main pipe 412 connected to the first air inlet main pipe 411. Multiple air distribution branch pipes 413 are provided on both sides of the air distribution main pipe 412, and the multiple air distribution branch pipes 413 are alternately and intermittently arranged along both sides of the air distribution main pipe 412. The structure of the second aeration mechanism 42 is the same as that of the first aeration mechanism 41. The second aeration mechanism 42 includes a second air inlet main pipe and an air distribution main pipe connected to the second air inlet main pipe. Multiple air distribution branch pipes are provided on both sides of the air distribution main pipe, and the multiple air distribution branch pipes are alternately and intermittently arranged along both sides of the air distribution main pipe.

[0026] In one embodiment, the tank body 1 is provided with an outlet 102, an inlet 101 for the inlet end of the inlet pipe 31 to pass through, a first air inlet for the air inlet end of the first air inlet pipe 411 to pass through, and a second air inlet for the air inlet end of the second air inlet pipe to pass through. The inlet 101 is located on the side of the tank body 1 near the bottom, and the outlet 102 is located on the side of the tank body near the top.

[0027] In one embodiment, a manual butterfly valve 6 is provided on the water inlet pipe 31, the first air inlet main pipe 411, and the second air inlet main pipe.

[0028] In one embodiment, the tank 1 is a carbon steel corrosion-resistant cylindrical sealed container with a diameter of 2.4 meters and a height of 4.9 meters. The upper packing layer 22 and the lower packing layer 21 inside the tank 1 are each approximately 1.2 meters high. The upper packing layer 22 and the lower packing layer 21 can be made of high-micro-electrolysis packing. The lower packing layer 21 is located at a certain position in the lower part of the tank 1, and the upper packing layer 22 is located at a certain position in the upper middle part of the tank 1.

[0029] The tank body 1 is also equipped with a first inspection port 51, a second inspection port 52, a third inspection port 53, and a fourth inspection port 54. The first inspection port 51 is located on the lower side of the lower packing layer 21 and is used to inspect the pipes of the water distribution mechanism 3 and the first aeration mechanism 41. The second inspection port 52 is located on the outside of the lower packing layer 21 and is used to remove the packing material from the packing layer 21. The third inspection port 53 is located between the second aeration mechanism 42 and the lower packing layer 21 and is used to load packing material and inspect the pipes of the second aeration mechanism 42. The fourth inspection port 54 is located on the outside of the upper packing layer 22 and is used to unload the packing material from the upper packing layer 22. The packing material for the upper packing layer 22 can be filled from the top of the tank body 1. By rationally setting the positions of each inspection port, it is convenient to load and unload packing material and to inspect the pipes of the water distribution mechanism 3 and the aeration mechanism.

[0030] In one embodiment, the water inlet 101 and the water outlet 102 are on the same vertical line, the first air inlet and the second air inlet are on the same vertical line, the first inspection port 51 and the third inspection port 53 are on the same vertical line, and the second inspection port 52 and the fourth inspection port 54 are on the same vertical line. The water inlet 101, the water outlet 102, the first air inlet, the second air inlet, and the various inspection ports are reasonably designed and arranged, which facilitates maintenance and repair by staff.

[0031] The operation process of this novel iron-carbon micro-electrolysis device is as follows:

[0032] When the water treatment process is started, the manual butterfly valves 6 on the inlet pipe 31, the first air inlet pipe 411, and the second air inlet pipe are open. Wastewater and air enter the tank 1 from the inlet pipe 31, the first air inlet pipe 411, and the second air inlet pipe, respectively. After the water is evenly distributed by the water distribution mechanism 3 and the air is evenly distributed by the first aeration mechanism 41 and the second aeration mechanism 42, the wastewater flows upward from the bottom of the tank 1. When the wastewater passes through two layers of iron-carbon packing, the large molecular COD and other pollutants are decomposed. Furthermore, due to the continuous disturbance of the packing by the air and wastewater, sedimentation and caking are avoided. The treated wastewater flows out from the outlet 102 of the tank 1 and enters the next process stage.

[0033] When water treatment is stopped, the manual butterfly valve 6 on the inlet pipe 31 is closed, and the manual butterfly valves 6 on the first air inlet pipe 411 and the second air inlet pipe are open. Air enters the tank 1 from the first aeration mechanism 41 and the second aeration mechanism 42, and continuously agitates the lower packing layer 21 and the upper packing layer 22 to prevent packing from settling.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An iron-carbon micro-electrolysis device, characterized in that, The system includes a tank body and a water distribution mechanism, a first aeration mechanism, a lower packing layer, a second aeration mechanism, and an upper packing layer disposed within the tank body. The lower and upper packing layers are spaced apart from bottom to top within the tank body. The water distribution mechanism is located below the lower packing layer. The first aeration mechanism is located between the water distribution mechanism and the lower packing layer, and the second aeration mechanism is located between the lower and upper packing layers. The water distribution mechanism includes an inlet pipe and multiple perforated water distribution pipes connected to the inlet pipe, arranged side by side. The first aeration mechanism includes a first air inlet main pipe and an air distribution main pipe connected to the first air inlet main pipe. Multiple air distribution branch pipes are provided on both sides of the air distribution main pipe, arranged alternately and at intervals along both sides of the air distribution main pipe. The second aeration mechanism includes a second air inlet main pipe and an air distribution main pipe connected to the second air inlet main pipe. Multiple air distribution branch pipes are provided on both sides of the air distribution main pipe, arranged alternately and at intervals along both sides of the air distribution main pipe.

2. The iron-carbon micro-electrolysis device according to claim 1, characterized in that, The tank body is provided with an outlet, an inlet for the inlet end of the inlet pipe, a first air inlet for the inlet end of the first air inlet pipe, and a second air inlet for the inlet end of the second air inlet pipe. The inlet is located on the side of the tank body near the bottom, and the outlet is located on the side of the tank body near the top.

3. The iron-carbon micro-electrolysis device according to claim 2, characterized in that, The water inlet and outlet are on the same vertical line, and the first air inlet and the second air inlet are on the same vertical line.

4. The iron-carbon micro-electrolysis device according to claim 1, characterized in that, Manual butterfly valves are installed on the water inlet pipe, the first air inlet main pipe, and the second air inlet main pipe.

5. The iron-carbon micro-electrolysis device according to any one of claims 1 to 4, characterized in that, The tank body is also provided with a first inspection port, a second inspection port, a third inspection port and a fourth inspection port. The first inspection port is located on the lower side of the lower packing layer and is used to inspect the water distribution mechanism and the first aeration mechanism. The second inspection port is located on the outside of the lower packing layer and is used to unload the packing material of the packing layer. The third inspection port is located between the second aeration mechanism and the lower packing layer and is used to load the packing material and inspect the second aeration mechanism. The fourth inspection port is located on the outside of the upper packing layer and is used to unload the packing material of the upper packing layer.

6. The iron-carbon micro-electrolysis device according to claim 5, characterized in that, The first and third inspection ports are on the same vertical line, and the second and fourth inspection ports are on the same vertical line.

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