Horizontal baffling sewage internal carbon source conversion and storage reaction device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a horizontal baffling sewage internal carbon source conversion and storage reaction device which comprises a reaction device main body, a baffling partition plate is mounted in the reaction device main body through a bolt, and a vertical partition plate is arranged on one side of the baffling partition plate; the reaction device main body is divided into a plurality of sewage treatment reaction areas by the baffling partition plates and the vertical partition plates; the reaction zones are sequentially a first-grid sewage inner carbon source conversion downward flow reaction zone, a first-grid sewage inner carbon source conversion upward flow reaction zone, a second-grid sewage inner carbon source conversion downward flow reaction zone, a second-grid sewage inner carbon source conversion upward flow reaction zone, a first-grid sludge inner carbon source storage downward flow reaction zone and a second-grid sludge inner carbon source storage upward flow reaction zone; in the sewage treatment process, the utilization rate of organic particulate matters is high, and the organic particulate matters can be used as a denitrification carbon source to reduce sludge treatment, so that the sludge production amount of sewage treatment is small, and colloids and organic particulate matters in suspended matters are effectively removed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a horizontal baffled sewage carbon source conversion and storage reaction device. Background Art

[0002] The mainstream denitrification method for domestic sewage treatment in my country is biological denitrification processes such as AO and multi-stage AO. However, due to the low carbon-nitrogen ratio of domestic sewage in my country, which does not meet the requirements of biological denitrification, the denitrification efficiency is low. Additional carbon sources (methanol, glucose, etc.) are required to meet nitrogen emission standards, resulting in high sewage treatment costs and large sludge production. In addition, the suspended solids concentration in domestic sewage in my country is generally 150-300 mg / L, and colloids and organic particulates account for a high proportion of the suspended solids. The utilization rate of organic particulates in existing sewage treatment processes is low, especially as a carbon source for denitrification. Most of them are directly removed in the form of sludge, resulting in a large amount of sludge produced during sewage treatment. Utility Model Content

[0003] In response to the problems in the existing technology, the utility model provides a horizontal baffled sewage carbon source conversion and storage reaction device, which has a high utilization rate of organic particulate matter in the sewage treatment process and can be used as a denitrification carbon source, reducing the treatment of sludge. Therefore, the sewage treatment sludge production is small, and colloids and organic particulate matter in suspended matter are effectively removed.

[0004] The technical solution adopted by the utility model to solve its technical problems is a horizontal baffled sewage carbon source conversion and storage reaction device, comprising a reaction device body, wherein a baffle plate is installed in the reaction device body by bolts and a vertical baffle plate is provided on one side of the baffle plate, wherein the baffle plate and the vertical baffle plate divide the reaction device body into a plurality of sewage treatment reaction zones, which are, in order, a first grid sewage carbon source conversion downward flow reaction zone, a first grid sewage carbon source conversion upward flow reaction zone, a second grid sewage carbon source conversion downward flow reaction zone, a second grid sewage carbon source conversion upward flow reaction zone, a first grid sludge carbon source storage downward flow reaction zone, a second grid sludge carbon source storage upward flow reaction zone, a third grid sludge carbon source storage downward flow reaction zone, and a sludge carbon source storage upward flow reaction separation zone;

[0005] A sewage distribution trough is provided on the inner top of the first grid sewage carbon source conversion downward flow reaction zone, a sludge distribution trough is provided on the inner top of the first sludge carbon source storage downward flow reaction zone, a water collection trough is provided on one side of the inner wall of the sludge carbon source storage upward flow reaction and separation zone, and a sludge collecting pipe is provided on one side of the bottom end of the first grid sewage carbon source conversion upward flow reaction zone, the second grid sewage carbon source conversion upward flow reaction zone and the sludge carbon source storage upward flow reaction and separation zone.

[0006] By adopting the above technical solution, the utilization rate of organic particulate matter in the sewage treatment process is high, and it can be used as a denitrification carbon source, reducing the treatment of sludge. Therefore, the amount of sludge produced by sewage treatment is small, and colloids and organic particulate matter in suspended matter are effectively removed.

[0007] Specifically, the sludge collecting pipes of the first sewage carbon source conversion upward flow reaction zone and the second sewage carbon source conversion upward flow reaction zone are connected to the residual sludge pipe.

[0008] By adopting the above technical solution, the residual sludge pipe is used to facilitate the discharge of sludge in the first sewage carbon source conversion upward flow reaction zone and the second sewage carbon source conversion upward flow reaction zone.

[0009] Specifically, the sludge collecting pipe in the upward flow reaction and separation zone for storing the carbon source in the sludge is connected to a sludge return pipe.

[0010] Specifically, the sewage distribution tank and the sludge distribution tank are respectively connected to a sewage inlet pipe and a sludge inlet pipe, and one end of the water collecting tank is connected to a water outlet pipe.

[0011] Specifically, an online acid-base monitor and an online redox potential monitor are respectively provided on the top of the first sewage carbon source conversion upflow reaction zone and the second sewage carbon source conversion downflow reaction zone.

[0012] Specifically, the inner tops of the second sewage carbon source conversion upflow reaction zone and the sludge carbon source storage upflow reaction separation zone are respectively provided with an online mud level meter and an online sludge concentration monitor.

[0013] By adopting the above technical solution, the online mud level meter and the online sludge concentration monitor mainly monitor the effluent sludge concentration in order to control and adjust the sludge concentration, as well as monitor the reaction status.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model discloses a horizontal baffled sewage carbon source conversion and storage reaction device, which utilizes hydrolysis and acidification technology to convert colloids and organic particulate matter in sewage suspension to produce acid, thereby forming high-efficiency and high-quality denitrification carbon sources such as acetic acid and propionic acid, thereby improving the carbon-nitrogen ratio and carbon source quality of sewage, achieving high-efficiency extreme biological denitrification treatment without the need for an external carbon source, and effectively reducing the cost of sewage treatment agents.

[0016] (2) The horizontal baffled sewage internal carbon source conversion and storage reaction device described in the utility model utilizes the activated sludge after the endogenous respiratory reaction to quickly absorb and adsorb the dissolved organic matter in the sewage, and stores it in the sludge in the form of an internal carbon source, thereby reducing the concentration of free organic matter in the sewage and the energy consumption for oxidizing the organic matter in the sewage, thereby achieving efficient utilization of the internal carbon source in the sewage, while reducing the generation of residual sludge, saving energy consumption and the use of chemicals, and reducing the cost of sewage treatment.

[0017] (3) The horizontal baffled sewage carbon source conversion and storage reaction device described in the present invention adopts a horizontal multi-stage baffle structure, has no mechanical power equipment, and uses hydraulic action to achieve mixing reaction. It has a simple structure, easy construction, no maintenance, and low cost.

[0018] (4) The horizontal baffled sewage carbon source conversion and storage reaction device described in the utility model adopts an online acid-base monitor, an online redox potential monitor, an online mud level meter, and an online sludge concentration monitor set in the reaction zone, which can monitor the reaction conditions of each reaction zone in real time and make timely adjustments to achieve stable and efficient reactions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the pipeline structure of the present utility model.

[0023] Figure: 1, sewage inlet pipe; 2, sewage distribution tank; 3, sludge collecting pipe; 4, residual sludge pipe; 5, sludge inlet pipe; 6, sludge distribution tank; 7, outlet pipe; 8, sludge collecting tank; 10, reactor body; 11, baffle plate; 12, vertical baffle plate; 13, online acid-base monitor; 14, online redox potential monitor; 15, online sludge level meter; 16, online sludge concentration monitor; 1-1, downward flow of carbon source conversion in the first sewage compartment Reaction zone; 1-2, the first compartment sewage carbon source conversion upward flow reaction zone; 1-3, the second compartment sewage carbon source conversion downward flow reaction zone; 1-4, the second compartment sewage carbon source conversion upward flow reaction zone; 2-1, the first compartment sludge carbon source storage downward flow reaction zone; 2-2, the second compartment sludge carbon source storage upward flow reaction zone; 2-3, the third compartment sludge carbon source storage downward flow reaction zone; 2-4, sludge carbon source storage upward flow reaction and separation zone. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In order to increase the utilization rate of organic particles in the sewage treatment process, it can be used as a denitrification carbon source to reduce the treatment of sludge. Therefore, the amount of sludge produced by sewage treatment is small, and colloids and organic particles in suspended matter are effectively removed. Figure 1-3 As shown, the utility model describes a horizontal baffled sewage carbon source conversion and storage reaction device, comprising a reaction device body 10, wherein a baffle baffle 11 is installed in the reaction device body 10 by bolts, and a vertical baffle 12 is provided on one side of the baffle baffle 11, wherein the baffle baffle 11 and the vertical baffle 12 separate the reaction device body 10 into a plurality of sewage treatment reaction zones, which are, in order, a first grid sewage carbon source conversion downward flow reaction zone 1-1, a first grid sewage carbon source conversion upward flow reaction zone 1-2, a second grid sewage carbon source conversion downward flow reaction zone 1-3, a second grid sewage carbon source conversion upward flow reaction zone 1-4, a first grid sludge carbon source storage downward flow reaction zone 2-1, a second grid sludge carbon source storage upward flow reaction zone 2-2, a third grid sludge carbon source storage downward flow reaction zone 2-3, and a sludge carbon source storage upward flow reaction separation zone 2-4;

[0026] A sewage distribution tank 2 is provided at the inner top of the first grid sewage carbon source conversion downward flow reaction zone 1-1, a sludge distribution tank 6 is provided at the inner top of the first grid sludge carbon source storage downward flow reaction zone 2-1, a water collecting tank 8 is provided on one side of the inner wall of the sludge carbon source storage upward flow reaction and separation zone 2-4, and a sludge collecting pipe 3 is provided on one side of the bottom end of the first grid sewage carbon source conversion upward flow reaction zone 1-2, the second grid sewage carbon source conversion upward flow reaction zone 1-4 and the sludge carbon source storage upward flow reaction and separation zone 2-4.

[0027] When in use, the utilization rate of organic particulate matter in the sewage treatment process is high, and it can be used as a denitrification carbon source to reduce sludge treatment. Therefore, the amount of sludge produced in sewage treatment is small, and colloids and organic particulate matter in suspended matter are effectively removed.

[0028] For example, Figure 2 As shown, the utility model also includes that the sludge collecting pipes 3 of the first sewage carbon source conversion upward flow reaction zone 1-2 and the second sewage carbon source conversion upward flow reaction zone 1-4 are connected to the residual sludge pipe 4.

[0029] When in use, the residual sludge pipe 4 is used to facilitate the discharge of sludge in the first sewage carbon source conversion upflow reaction zone 1-2 and the second sewage carbon source conversion upflow reaction zone 1-4.

[0030] For example, Figure 2As shown, the present invention further includes that a sludge return pipe 9 is connected to the sludge collecting pipe 3 of the upward flow reaction and separation zone 2-4 for storing the carbon source in the sludge.

[0031] When in use, the sludge return pipe 9 is used to facilitate the storage of carbon sources in the sludge and the return of the sludge in the upward flow reaction and separation zones 2-4.

[0032] For example, Figure 2 As shown, the utility model further includes that the sewage distribution tank 2 and the sludge distribution tank 6 are respectively connected to the sewage inlet pipe 1 and the sludge inlet pipe 5, and one end of the water collecting tank 8 is connected to the outlet pipe 7.

[0033] When in use, the water outlet pipe 7 is used to discharge the treated clean water.

[0034] For example, Figure 1 、 2 As shown, the present invention also includes that an online acid-base monitor 13 and an online redox potential monitor 14 are respectively provided on the top of the first sewage carbon source conversion upflow reaction zone 1-2 and the second sewage carbon source conversion downflow reaction zone 1-3.

[0035] When in use, the online acid-base monitor 13 and the online redox potential monitor 14 mainly monitor the reaction state effect.

[0036] For example, Figure 1 、 2 As shown, the present invention also includes that the inner tops of the second-grid sewage carbon source conversion upflow reaction zone 1-4 and the sludge carbon source storage upflow reaction separation zone 2-4 are respectively provided with an online mud level meter 15 and an online sludge concentration monitor 16.

[0037] When in use, the online mud level meter 15 and the online sludge concentration monitor 16 mainly monitor the effluent sludge concentration in order to control and adjust the sludge concentration, as well as monitor the reaction status.

[0038] When the utility model is in use, the pre-treated sewage enters the water distribution tank 2 from the water inlet pipe 1, and is vertically distributed to the first grid downward flow reaction zone 1-1 of the carbon source conversion reaction in the sewage through the water distribution holes provided in the water distribution tank 2. The sewage is diverted through the baffle 11 and enters the first grid sewage carbon source conversion upward flow reaction zone 1-2. The colloids and organic particulate matter in the sewage are in contact with the hydrolytic bacteria in this reaction zone, so that the solid organic matter is liquefied and dissolved into soluble organic matter. Then the sewage flows by gravity into the second grid sewage carbon source conversion downward flow reaction zone 1-3 and finally enters the second grid sewage carbon source conversion upward flow reaction zone 1-4, so that the soluble macromolecular organic matter in the sewage undergoes an acidification reaction with the acid-producing bacteria to generate small molecular volatile fatty acids (acetic acid, propionic acid, etc.). A sludge collecting pipe 3 and a sludge discharge pipe 4 are provided at the bottom of the reaction zones 1-2 and 1-4 to discharge the residual sludge regularly.

[0039] After the sewage passes through the carbon conversion reaction zone in the front section, the dissolved small molecular organic matter in the sewage is greatly increased, and then it enters the first sludge carbon source storage downward flow reaction zone 2-1 in the rear section. At the same time, after the internal respiration reaction, the activated sludge is distributed through the sludge inlet pipe 5 through the sludge mixing tank 6. The sludge and sewage are mixed and reacted, and then continue to contact and react in the upper and lower baffle reaction zones 2-2 and 2-3.

[0040] The absorption and adsorption function of the sludge is utilized to store the small molecular organic matter (volatile fatty acids) in the sewage in the sludge, and then flows by gravity into the terminal sludge internal carbon source storage upward flow reaction separation zone 2-4 for initial separation of mud and water. The upper low-concentration sludge is collected by the outlet trough 8 and discharged from the drain pipe 7 to enter the nitrification reaction tank of the sewage treatment system. The lower high-concentration sludge is collected by the sludge collecting pipe 3 and discharged through the sludge discharge pipe 9 to enter the denitrification reaction tank of the sewage treatment system.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal baffled sewage carbon source conversion and storage reaction device, characterized in that: The invention comprises a reaction device body (10), wherein a baffle plate (11) is installed in the reaction device body (10) by bolts, and a vertical baffle plate (12) is provided on one side of the baffle plate (11), wherein the baffle plate (11) and the vertical baffle plate (12) divide the reaction device body (10) into a plurality of sewage treatment reaction zones, which are, in order, a first-grid sewage carbon source conversion downward flow reaction zone (1-1), a first-grid sewage carbon source conversion upward flow reaction zone (1-2), a second-grid sewage carbon source conversion downward flow reaction zone (1-3), a second-grid sewage carbon source conversion upward flow reaction zone (1-4), a first-grid sludge carbon source storage downward flow reaction zone (2-1), a second-grid sludge carbon source storage upward flow reaction zone (2-2), a third-grid sludge carbon source storage downward flow reaction zone (2-3), and a sludge carbon source storage upward flow reaction separation zone (2-4); A sewage distribution tank (2) is provided at the inner top of the first sewage carbon source conversion downward flow reaction zone (1-1), a sludge distribution tank (6) is provided at the inner top of the first sludge carbon source storage downward flow reaction zone (2-1), a water collecting tank (8) is provided on one side of the inner wall of the sludge carbon source storage upward flow reaction and separation zone (2-4), and a sludge collecting pipe (3) is provided on one side of the bottom end of the first sewage carbon source conversion upward flow reaction zone (1-2), the second sewage carbon source conversion upward flow reaction zone (1-4), and the sludge carbon source storage upward flow reaction and separation zone (2-4).

2. The horizontal baffled sewage carbon source conversion and storage reaction device according to claim 1 is characterized in that: The sludge collecting pipes (3) of the first sewage carbon source conversion upflow reaction zone (1-2) and the second sewage carbon source conversion upflow reaction zone (1-4) are connected to a residual sludge pipe (4).

3. The horizontal baffled sewage carbon source conversion and storage reaction device according to claim 1, characterized in that: The sludge collecting pipe (3) of the upward flow reaction and separation zone (2-4) for storing the carbon source in the sludge is connected to a sludge return pipe (9).

4. The horizontal baffled sewage carbon source conversion and storage reaction device according to claim 1, characterized in that: The sewage distribution tank (2) and the sludge distribution tank (6) are respectively connected to a sewage inlet pipe (1) and a sludge inlet pipe (5), and one end of the water collecting tank (8) is connected to a water outlet pipe (7).

5. The horizontal baffled sewage carbon source conversion and storage reaction device according to claim 1, characterized in that: An online acid-base monitor (13) and an online redox potential monitor (14) are respectively provided on the top of the first sewage carbon source conversion upflow reaction zone (1-2) and the second sewage carbon source conversion downflow reaction zone (1-3).

6. The horizontal baffled sewage carbon source conversion and storage reaction device according to claim 1, characterized in that: An online mud level meter (15) and an online sludge concentration monitor (16) are respectively provided on the inner top of the second sewage carbon source conversion upflow reaction zone (1-4) and the sludge carbon source storage upflow reaction separation zone (2-4).

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