IC reactor for treating amino acid wastewater

Abstract

The utility model discloses an IC reactor for treating amino acid wastewater, which is formed by vertically overlapping and serially connecting a first anaerobic reaction chamber and a second anaerobic reaction chamber, the lower part of the first anaerobic reaction chamber is a wastewater feeding area, the top of the second anaerobic reaction chamber is provided with a water outlet area, and the lower part of the water outlet area is connected to the wastewater feeding area through an external circulation return pipe; a first three-phase separation system and a second three-phase separation system are respectively arranged at the tops of the first anaerobic reaction chamber and the second anaerobic reaction chamber, and biogas lifting pipes are arranged in the first three-phase separation system and the second three-phase separation system and are lifted to a three-phase separation bag at the top of the IC reactor body; and the three-phase separation bag flows back to the wastewater feeding area through an inner circulating pipe. The lifting pipe is connected with the inner circulation pipe, and meanwhile, in order to strengthen the internal flow rising effect, the water outlet area is provided with the outer circulation backflow pipe for backflow to the wastewater feeding area, so that the structure of the IC reactor can be optimized, and the occupied area of the IC reactor is reduced.

Description

Technical Field

[0001] The utility model relates to the field of industrial wastewater treatment, in particular to an IC reactor for treating amino acid wastewater. Background Art

[0002] The wastewater generated during the processing of amino acids mainly includes high-concentration wastewater generated after amino acid extraction, concentrated condensate, equipment cleaning water, and circulating cooling sewage. Among them, in the amino acid fermentation production process, since the culture medium contains nutrients such as glucose, corn steep liquor, and ammonium sulfate, ammonia water is added in the reaction process to adjust the pH. At the same time, there are residual bacteria and some reaction products in the wastewater, resulting in amino acid wastewater being a complex wastewater with high COD, high ammonia nitrogen, high total nitrogen, high sulfate and low pH. Therefore, when treating complex wastewater, the IC reactor, i.e., a high-efficiency anaerobic reactor, needs to precipitate and decompose the sinking sludge and floating liquid accordingly. Therefore, the structure of the IC reactor needs to be comprehensively designed to effectively separate the granular sludge and liquid without affecting the staff's cleaning of the inside of the IC reactor.

[0003] Therefore, it is necessary to improve the structure of an IC reactor for treating amino acid wastewater. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide an IC reactor for treating amino acid wastewater.

[0005] One of the purposes of this utility model is achieved by the following technical solution:

[0006] An IC reactor for treating amino acid wastewater. The interior of the IC reactor is composed of a first anaerobic reaction chamber and a second anaerobic reaction chamber stacked in series. The first anaerobic reaction chamber is a high-load reaction zone, and the second anaerobic reaction chamber is a low-load reaction zone. The lower part of the first anaerobic reaction chamber is a wastewater feeding zone. The top of the second anaerobic reaction chamber is provided with a water outlet zone, which is connected to the wastewater feeding zone through an external circulation reflux pipe. The tops of the first anaerobic reaction chamber and the second anaerobic reaction chamber are respectively provided with a first three-phase separation system and a second three-phase separation system. The first three-phase separation system and the second three-phase separation system are provided with a biogas lifting pipe. The biogas lifting pipe is lifted to a three-phase separation bag on the top of the IC reactor body, and the three-phase separation bag is refluxed to the wastewater feeding zone through an internal circulation pipe.

[0007] Furthermore, the wastewater feed area includes a material separation area connected to the inner circulation pipe, the top side of the material separation area is connected to the liquid inlet pipe and the outer circulation reflux pipe through a mixing liquid inlet pipe, and a slag outlet is provided below the material separation area.

[0008] Furthermore, the material separation area includes a material cover and a mud guide plate, the material cover is provided with water distribution holes, the wastewater feeding area under the mud guide plate is a sedimentation tank, and the sedimentation tank is connected to the slag outlet.

[0009] Furthermore, a waste residue guide plate is provided on the inner wall of the sedimentation tank.

[0010] Furthermore, the mixing liquid inlet pipe is arranged between the top of the material upper cover and the mud guide plate.

[0011] Furthermore, the material cover and the mud guide plate are conical in shape, and the upper surface of the mud guide plate is an arc surface.

[0012] Furthermore, a maintenance climbing frame is provided on one side of the IC reactor body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The first anaerobic reaction chamber, the second anaerobic reaction chamber and the three-phase separation package are connected by a riser and an internal circulation pipe. At the same time, in order to enhance the internal upflow effect, an external circulation reflux pipe that flows back to the wastewater feeding area is set in the effluent area, which can optimize the structure of the IC reactor and reduce its footprint.

[0015] 2. A conical material cover and a mud guide plate are set in the wastewater feeding area. The material cover can allow the liquid to penetrate through, and anaerobic reaction and separation are carried out through the anaerobic reaction chamber and three-phase separation system. The sludge can be guided through the mud guide plate to settle to the bottom of the IC reactor body and discharged through the slag outlet, thus avoiding clogging of the IC reactor by sludge.

[0016] 3. A waste slag guide plate is also set at the bottom to gather the sludge and facilitate slag and material discharge.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0021] Figure 4This is a schematic diagram of the bottom mud guide plate structure of the present utility model.

[0022] Numbers in the figure: 1. First anaerobic reaction chamber; 2. Second anaerobic reaction chamber; 3. First three-phase separation system; 4. Second three-phase separation system; 5. Biogas lifting pipe; 6. Three-phase separation bag; 7. Internal circulation pipe; 9. External circulation return pipe; 10. Water outlet; 11. Wastewater feed area; 111. Material separation area; 112. Mixing liquid inlet pipe; 113. Liquid inlet pipe; 114. Slag outlet; 1111. Material cover; 1112. Mud guide plate; 1113. Water distribution hole; 1114. Sedimentation tank; 1115. Waste slag guide plate; 12. Maintenance climbing frame. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] See also Figure 1-4 The utility model provides a technical solution: an IC reactor for treating amino acid wastewater, wherein the interior of the IC reactor body is composed of a first anaerobic reaction chamber 1 and a second anaerobic reaction chamber 2 which are overlapped in series. The first anaerobic reaction chamber 1 is a high-load reaction zone, and the second anaerobic reaction chamber 2 is a low-load reaction zone. The lower part of the first anaerobic reaction chamber 1 is a wastewater feeding zone 11, and the top of the second anaerobic reaction chamber 2 is provided with a water outlet zone 10. The water outlet zone 10 is connected to the wastewater feeding zone 11 through an external circulation reflux pipe 9. The tops of the first anaerobic reaction chamber 1 and the second anaerobic reaction chamber 2 are respectively provided with a first three-phase separation system 3 and a second three-phase separation system 4. The first three-phase separation system 3 and the second three-phase separation system 4 are provided with a biogas lifting pipe 5. The biogas lifting pipe 5 is lifted to a three-phase separation bag 6 at the top of the IC reactor body, and the three-phase separation bag 6 is refluxed to the wastewater feeding zone 11 through an internal circulation pipe 7.

[0025] The first anaerobic reaction chamber 1, the second anaerobic reaction chamber 2 and the three-phase separation bag 6 are connected by a riser 5 and an internal circulation pipe 7. At the same time, in order to enhance the internal upflow effect, an external circulation reflux pipe 9 is set in the water outlet area 10 to flow back to the wastewater feeding area 11, which can optimize the structure of the IC reactor and reduce its footprint.

[0026] The wastewater feeding area 11 includes a material separation area 111 connected to the inner circulation pipe 7. The top side of the material separation area 111 is connected to the liquid inlet pipe 113 and the outer circulation reflux pipe 9 through the mixing liquid inlet pipe 112. A slag outlet 114 is provided under the material separation area 111. The material separation area 111 includes a material upper cover 1111 and a mud guide plate 1112. Water distribution holes 1113 are distributed on the material upper cover 1111. The wastewater feeding area 11 under the mud guide plate 1112 is a sedimentation tank 1114. The sedimentation tank 1114 is connected to the slag outlet 114. The material upper cover 1111 and the mud guide plate 1112 are conical in shape, and the upper surface of the mud guide plate 1112 is a circular arc surface.

[0027] Wastewater feed zone 11 is equipped with a conical material cover 1111 and a mud guide plate 1112. Cover 1111 allows liquid to permeate through the anaerobic reaction chamber and three-phase separation system for anaerobic reaction and separation. Sludge is then diverted through mud guide plate 1112 and deposited at the bottom of the IC reactor body. Sludge is then discharged through slag outlet 114, preventing sludge from clogging the IC reactor.

[0028] The inner wall of the sedimentation tank 1114 is provided with a waste slag guide plate 1115, and a waste slag guide plate 1115 is also provided at the bottom to collect the sludge and facilitate the discharge of slag.

[0029] The mixing liquid inlet pipe 112 is arranged between the top of the material cover 1111 and the mud guide plate 1112, so that the material can evenly penetrate downward from the upper part of the material cover 1111 and the sludge is settled at the bottom of the sedimentation tank 1114.

[0030] A maintenance climbing frame 12 is provided on one side of the IC reactor body, which cooperates with the maintenance opening on the top of the IC reactor body to facilitate maintenance.

[0031] During operation, the designed reflux ratio is in the range of 200-350%. In this IC reactor, the designed rising velocity is 3 m / h and the designed volume load is 4.6 kg / m 3 .d. The anaerobic bacteria used are granular sludge. By designing the first anaerobic reaction chamber 1 and the second anaerobic reaction chamber 2 in overlapping series and optimizing the reactor configuration, the traditional hydrolysis and acidification pretreatment process can be reduced and the footprint of the IC reactor can be greatly reduced.

Claims

1. An IC reactor for treating amino acid wastewater, characterized in that: The interior of the IC reactor body is composed of a first anaerobic reaction chamber (1) and a second anaerobic reaction chamber (2) which are overlapped and connected in series. The first anaerobic reaction chamber (1) is a high-load reaction zone, and the second anaerobic reaction chamber (2) is a low-load reaction zone. The lower part of the first anaerobic reaction chamber (1) is a wastewater feeding zone (11). The top of the second anaerobic reaction chamber (2) is provided with a water outlet zone (10). The water outlet zone (10) is connected to the wastewater feeding zone (11) through an external circulation return pipe (9). The tops of the first anaerobic reaction chamber (1) and the second anaerobic reaction chamber (2) are respectively provided with a first three-phase separation system (3) and a second three-phase separation system (4). The first three-phase separation system (3) and the second three-phase separation system (4) are provided with a biogas lifting pipe (5). The biogas lifting pipe (5) is lifted to the three-phase separation bag (6) at the top of the IC reactor body, and the three-phase separation bag (6) is refluxed to the wastewater feeding zone (11) through an internal circulation pipe (7).

2. An IC reactor for treating amino acid wastewater according to claim 1, characterized in that: The wastewater feed zone (11) comprises a material separation zone (111) connected to the inner circulation pipe (7); the top side of the material separation zone (111) is connected to the liquid inlet pipe (113) and the outer circulation return pipe (9) via a mixing liquid inlet pipe (112); and a slag outlet (114) is provided below the material separation zone (111).

3. An IC reactor for treating amino acid wastewater according to claim 2, characterized in that: The material separation area (111) comprises a material upper cover (1111) and a mud guide plate (1112); water distribution holes (1113) are distributed on the material upper cover (1111); the wastewater feeding area (11) below the mud guide plate (1112) is a sedimentation tank (1114); and the sedimentation tank (1114) is connected to a slag outlet (114).

4. An IC reactor for treating amino acid wastewater according to claim 3, characterized in that: A waste residue guide plate (1115) is provided on the inner wall of the sedimentation tank (1114).

5. An IC reactor for treating amino acid wastewater according to claim 4, characterized in that: The mixing liquid inlet pipe (112) is arranged between the top of the material upper cover (1111) and the mud guide plate (1112).

6. An IC reactor for treating amino acid wastewater according to claim 5, characterized in that: The material upper cover (1111) and the mud guide plate (1112) are conical in shape, and the upper surface of the mud guide plate (1112) is an arc surface.

7. An IC reactor for treating amino acid wastewater according to claim 6, characterized in that: A maintenance climbing frame (12) is provided on one side of the IC reactor body.

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