Microbial reaction tank

Abstract

The utility model discloses a microorganism reaction tank which comprises a tank body and a flashboard mechanism, a mud-water confluence area, a continuous treatment area and a discharge area are formed in the tank body through a first partition plate and a second partition plate, the mud-water confluence area and the continuous treatment area are communicated at the bottom, the second partition plate is mounted in a bottom falling manner, and the continuous treatment area and the discharge area are communicated at a high point. The flashboard mechanism is correspondingly installed at the position where the second partition plate is located, the tank body is provided with a sewage input mechanism and a treated water discharge pipe opening, the sewage input mechanism is communicated with the mud-water convergence area, and the treated water discharge pipe opening is communicated with the discharge area. Multiple biodegradation effects of biological oxidation reduction, cell phagocytosis, extracellular secretion catalytic reaction and the like are carried out on organic pollutants in the wastewater through the high-order microbial flora, so that a good wastewater treatment effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fiber sewage treatment, and more specifically, to a microbial reaction tank. Background Art

[0002] The chemical recycling regeneration technology of waste textiles uses waste textiles as raw materials, and through processes such as glycol alcoholysis and depolymerization into BHET, removal of foreign materials, methanol transesterification, DMT crystallization, centrifugal separation, DMT rectification, etc., to produce recycled DMT (dimethyl terephthalate), and then uses recycled DMT as raw materials to make PET polyester chips, polyester filaments and other engineering plastics.

[0003] In the actual production process of the chemical recycling regeneration process of waste textiles, a large amount of production wastewater will be generated. These wastewaters have characteristics such as extremely high COD concentration, high biological toxicity, containing floating oils, high organic nitrogen, etc. Conventional physical and biochemical methods cannot achieve good treatment effects on this type of wastewater. Therefore, enterprises urgently need to transform and upgrade the existing wastewater treatment system. The microbial reaction tank is the most crucial part of the wastewater treatment system. A reasonably designed microbial reaction tank can greatly reduce the COD of the wastewater, remove the microbial toxicity of the wastewater, and ensure the stable operation of the subsequent conventional biochemical treatment system. The structural technology upgrade of the microbial reaction tank is a key research project for enterprises, and this case is thus born. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a microbial reaction tank. The utility model can form a high-order microbial flora in the tank body, and through the multiple biodegradation effects of the high-order microbial flora on the organic pollutants in the wastewater, such as biological oxidation-reduction, cell phagocytosis, and extracellular secretion catalysis reactions, to achieve good wastewater treatment effects.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A microbial reaction tank, comprising a tank body and a gate mechanism. A first partition board and a second partition board are installed in the tank body. Through the first partition board and the second partition board, a mud-water confluence area, a continuous treatment area and a discharge area are separated and formed in the tank body. A gap is left between the first partition board and the bottom of the tank body, so that the mud-water confluence area and the continuous treatment area are connected at the bottom. The second partition board is installed with its bottom touching the bottom of the tank, and the highest point of the second partition board is lower than that of the first partition board, so that the continuous treatment area and the discharge area are connected at the highest point. The gate mechanism is correspondingly installed at the position where the second partition board is located. The gate mechanism includes a movable gate installed in a lifting manner. The movable gate cooperates with the second partition board to take effect. The partition height between the continuous treatment area and the discharge area can be changed through the movable gate. The tank body is provided with a sewage input mechanism and a treated water discharge pipe orifice. The sewage input mechanism is communicated with the mud-water confluence area, and the treated water discharge pipe orifice is communicated with the discharge area.

[0007] Further, the sewage input mechanism includes a sewage pump and a sewage input main pipe. The sewage input main pipe is communicated with the mud-water confluence area, and the sewage input main pipe is connected to the outlet end of the sewage pump through a pipeline. The tank body is also provided with a sludge circulation mechanism. The sludge circulation mechanism includes a sludge suction pipe orifice, a sludge pump and a sludge return pipe. The sludge suction pipe orifice is communicated with the bottom of the continuous treatment area. The sludge return pipe is communicated with the mud-water confluence area. The sludge suction pipe orifice is connected to the inlet end of the sludge pump through a pipeline. The outlet end of the sludge pump is connected to the sludge return pipe through a pipeline. The sludge return pipe is installed side by side with the sewage input main pipe. The sludge output by the sludge return pipe and the chemical fiber wastewater output by the sewage input main pipe can be converged together.

[0008] Further, the bottom of the tank body forms an inclined bottom surface. The high point of the inclined bottom surface is located in the mud-water confluence area, and the low point of the inclined bottom surface is located in the continuous treatment area. An aeration pipe network is laid on the inclined bottom surface. A sludge trench recessed downward is opened at the bottom of the continuous treatment area. The sludge trench is connected to the low point of the inclined bottom surface. The sludge suction pipe orifice is communicated with the sludge trench.

[0009] Further, a top cover plate is installed on the top of the mud-water confluence area. The top cover plate can seal the top opening of the mud-water confluence area. A plurality of material feeding openings are provided on the top cover plate.

[0010] Further, a mixing mechanism is installed on the top cover plate. The mixing mechanism includes a second motor and a stirring shaft. The stirring shaft is connected to the output end of the second motor. The stirring shaft extends into the mud-water confluence area. A plurality of groups of stirring blades are connected to the outer wall of the stirring shaft.

[0011] Further, the gate mechanism further includes a motor bracket, a first motor, and a guide groove. The motor bracket is installed across the top of the pool body. The first motor is installed on the motor bracket. The output end of the first motor is connected to a transmission screw. A linkage sleeve is connected to the movable gate. The transmission screw is threadedly connected to the linkage sleeve. The two guide grooves are respectively installed on the first partition plate and the inner wall of the pool body, and the two guide grooves are symmetrically arranged. The left and right ends of the movable gate are respectively inserted into the two guide grooves.

[0012] Further, a first sealing hook head is formed by folding the top of the second partition plate, and a second sealing hook head is formed by folding the bottom of the movable gate. The first sealing hook head closely adheres to the plate surface of the movable gate, and the second sealing hook head closely adheres to the plate surface of the second partition plate.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The structure of the present utility model is reasonably designed. There are three major areas, namely, a mud-water convergence area, a continuous treatment area, and a discharge area, formed by the partition plates. High-order microbial flora is constructed in the mud-water convergence area and the continuous treatment area. Through the high-order microbial flora, multiple biodegradation effects such as biological oxidation-reduction, cell phagocytosis, and extracellular secretion catalysis reaction are carried out on the organic pollutants in the wastewater to achieve a good wastewater treatment effect. The treated wastewater is discharged outside through the discharge area. The present utility model is designed with a sludge circulation mechanism. The sludge has a high content of microbial flora. Through the recycling of the sludge, the input wastewater and the sludge are fully mixed to achieve the effect of improving the treatment quality. The present utility model is designed with sludge grooves in the continuous treatment area, which can effectively collect the sludge, facilitate the sludge circulation operation, and also facilitate the subsequent cleaning operation inside the pool. The present utility model is also designed with a gate mechanism that is convenient to operate, and the discharge operation of the treated water is very convenient. Description of the Drawings

[0015] Figure 1 It is a cross-sectional view of a microbial reaction pool in the mud-water convergence area and the continuous treatment area in this embodiment;

[0016] Figure 2 It is a top view of a microbial reaction pool in this embodiment;

[0017] Figure 3 It is a side view of the gate mechanism in this embodiment.

[0018] Reference numerals: pond body 1, first partition 11, second partition 12, first sealing hook head 121, mud and water mixing area 13, continuous treatment area 14, sludge trench 141, discharge area 15, inclined bottom surface 16, aeration pipe network 17, gate mechanism 2, movable gate 21, second sealing hook head 211, motor frame 22, first motor 23, driving screw 24, linkage sleeve 25, guide groove 26, sewage input mechanism 3, sewage pump 31, sewage input main pipe 32, treated water discharge pipe orifice 4, sludge circulation mechanism 5, sludge suction pipe orifice 51, sludge pump 52, sludge return pipe 53, top cover plate 6, material feeding port 61, mixing mechanism 7, second motor 71, stirring shaft 72, stirring blades 73. Detailed implementation manners

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1 - 3A microbial reaction tank shown in the figure includes a tank body 1 and a gate mechanism 2. A first partition plate 11 and a second partition plate 12 are installed in the tank body 1. Through the first partition plate 11 and the second partition plate 12, a mud-water confluence area 13, a continuous treatment area 14, and a discharge area 15 are separated and formed in the tank body 1. There is a gap between the first partition plate 11 and the bottom of the tank body 1, so that the mud-water confluence area 13 and the continuous treatment area 14 are connected at the bottom. The second partition plate 12 is installed with its bottom touching the bottom, and the highest point of the second partition plate 12 is lower than that of the first partition plate 11, so that the continuous treatment area 14 and the discharge area 15 are connected at the high point. The gate mechanism 2 is correspondingly installed at the position where the second partition plate 12 is located. The gate mechanism 2 includes a movable gate 21 installed to move up and down. The movable gate 21 works in cooperation with the second partition plate 12. The partition height between the continuous treatment area 14 and the discharge area 15 can be changed through the movable gate 21. The tank body 1 is equipped with a sewage input mechanism 3 and a treated water discharge pipe orifice 4. The sewage input mechanism 3 communicates with the mud-water confluence area 13. The sewage input mechanism 3 includes a sewage pump 31 and a sewage input main pipe 32. The sewage input main pipe 32 communicates with the mud-water confluence area 13. The sewage input main pipe 32 is connected to the outlet end of the sewage pump 31 through a pipeline. Chemical fiber wastewater is pumped into the mud-water confluence area 13 by the sewage pump 31. The treated water discharge pipe orifice 4 communicates with the discharge area 15. The treated wastewater is output through the treated water discharge pipe orifice 4 and discharged to the subsequent conventional biochemical treatment system. Since the mud-water confluence area 13 and the continuous treatment area 14 are connected at the bottom, the chemical fiber wastewater first enters the mud-water confluence area 13 and then flows to the continuous treatment area 14. High-order microbial communities (which are highly efficient salt-tolerant electrochemically active bacterial strains obtained through screening) are constructed in both the mud-water confluence area 13 and the continuous treatment area 14. The high-order microbial communities can perform multiple biodegradation functions on the organic pollutants in the wastewater, such as biological oxidation-reduction, cell phagocytosis, and extracellular secretion catalysis reactions, so as to achieve good wastewater treatment effects. A large amount of sludge will be generated during the wastewater treatment process. The sludge deposits at the bottom of the tank. If it is not cleaned for a long time, the sludge layer will become thicker and thicker, which will affect the water storage capacity of the tank body 1. However, the environment of the sludge layer is also relatively suitable for the survival of the high-order microbial communities, and the content of the high-order microbial communities in the sludge layer will be relatively sufficient. How to effectively utilize the sludge has become the key to improving the use effect of the reaction tank. The present utility model solves the problem of sludge utilization by installing a sludge circulation mechanism 5 in the tank body 1. The sludge circulation mechanism 5 includes a sludge suction pipe orifice 51, a sludge pump 52, and a sludge return pipe 53. The sludge suction pipe orifice 51 communicates with the bottom of the continuous treatment area 14. The sludge return pipe 53 communicates with the mud-water confluence area 13. The sludge suction pipe orifice 51 is connected to the inlet end of the sludge pump 52 through a pipeline. The outlet end of the sludge pump 52 is connected to the sludge return pipe 53 through a pipeline. The sludge at the bottom of the tank can be continuously sucked through the sludge pump 52 and re-input into the mud-water confluence area 13. The sludge return pipe 53 is installed side by side with the sewage input main pipe 32. The sludge output from the sludge return pipe 53 and the chemical fiber wastewater output from the sewage input main pipe 32 can be confluent together.The returned sludge is washed and mixed with the input wastewater. The high-content and high-order microbial flora in the sludge is used to form a good reaction and degradation effect on the wastewater. The wastewater can be treated by the high-content and high-order microbial flora at the initial stage of entering the pool, which can greatly enhance the final treatment effect of the wastewater. At the same time, the sludge deposited at the bottom of the pool can also be effectively utilized, turning waste into treasure, and this can effectively extend the cleaning and maintenance interval of the reaction pool.

[0021] As Figure 1 and Figure 2 shown, a top cover plate 6 is installed at the top of the mud-water confluence area 13. The top cover plate 6 can seal the top opening of the mud-water confluence area 13. At the position of the mud-water confluence area 13, the returned sludge and the input wastewater form a confluence and scour, and there will be a sanitation hazard of sewage splashing. The above problem is solved by installing the top cover plate 6. A number of material feeding ports 61 are provided on the top cover plate 6. Through different material feeding ports 61, the selected strains and strain cultivation materials can be put into the mud-water confluence area 13.

[0022] The returned sludge has poor fluidity, is relatively viscous, and the agglomeration phenomenon is obvious, which is not conducive to the confluence treatment with the wastewater. As Figure 1 shown, a mixing mechanism 7 is installed on the top cover plate 6. The mixing mechanism 7 includes a second motor 71 and a stirring shaft 72. The stirring shaft 72 is connected to the output end of the second motor 71. The stirring shaft 72 extends into the mud-water confluence area 13. A number of groups of stirring blades 73 are connected to the outer wall of the stirring shaft 72. The second motor 71 can drive the stirring shaft 72 to rotate. Through the stirring blades 73, the agglomerated sludge can be broken up, so that it is fully mixed with the wastewater, and the high-order microbial flora in the sludge can fully form a treatment effect on the wastewater. This can improve the quality of wastewater treatment.

[0023] As Figure 1As shown, the bottom of the pond body 1 is formed with an inclined bottom surface 16. The high point of the inclined bottom surface 16 is located in the mud-water confluence area 13, and the low point of the inclined bottom surface 16 is located in the continuous treatment area 14. A sludge trench 141 that is recessed downward is opened at the bottom of the continuous treatment area 14. The sludge trench 141 is connected to the low point of the inclined bottom surface 16. The sludge suction pipe opening 51 communicates with the inside of the sludge trench 141. The inclined bottom surface 16 is designed such that the newly formed sludge during treatment and the old sludge settled in the mud-water confluence area 13 can both flow downward along the inclined surface until they are concentrated in the sludge trench 141. The inclined surface design is also beneficial to the sludge suction of the sludge suction pipe opening 51. At the same time, the designs of the inclined bottom surface 16 and the sludge trench 141 are also beneficial to the bottom cleaning operation of the pond. During cleaning and maintenance, when flushing the bottom of the pond with clean water, the residual mud can be concentrated in the sludge trench 141. During cleaning, only the sludge trench 141 needs to be cleaned, which can greatly reduce the cleaning operation burden. An aeration pipe network 17 is installed on the inclined bottom surface 16. The aeration pipe network 17 can form an aeration effect, providing oxygen for the formation and survival of the high-order microbial flora. At the same time, under the aeration effect, the sludge is not easy to agglomerate and stick to the bottom, and its fluidity is enhanced, which is beneficial to suction and recycling.

[0024] As Figure 1 and Figure 3 shown, the gate mechanism 2 further includes a motor frame 22, a first motor 23, and a guide groove 26. The motor frame 22 is installed across the top of the pond body 1. The first motor 23 is installed on the motor frame 22. The output end of the first motor 23 is connected with a transmission screw 24. A linkage sleeve 25 is connected to the movable gate 21. The transmission screw 24 is threadedly connected to the linkage sleeve 25. Two guide grooves 26 are respectively installed on the first partition 11 and the inner wall of the pond body 1. The two guide grooves 26 are symmetrically arranged. The left and right ends of the movable gate 21 are respectively inserted into the two guide grooves 26. The guide grooves 26 play a role in guiding and restricting the movement of the movable gate 21. The first motor 23 can drive the transmission screw 24 to rotate. Due to the existence of the guide grooves 26, the movable gate 21 can only move vertically up and down. When the transmission screw 24 rotates, the movable gate 21 can be driven to move vertically up and down through the linkage sleeve 25. The movable gate 21 is used as a height extension of the second partition 12. After the movable gate 21 is lifted, the partition height between the continuous treatment area 14 and the discharge area 15 is increased, and the wastewater remains in the continuous treatment area 14 to be continuously treated by the high-order microbial flora. When it is necessary to output the treated water, lower the movable gate 21, and the partition height between the continuous treatment area 14 and the discharge area 15 is reduced, forming a high-point connection effect between the continuous treatment area 14 and the discharge area 15. The top layer water of the continuous treatment area 14 can naturally flow into the discharge area 15. The top layer water of the continuous treatment area 14 is relatively clean and meets the requirements for discharging to the next treatment system. After discharging for a period of time, the water level in the continuous treatment area 14 drops, and the movable gate 21 can be lifted again so that the water remains in the continuous treatment area 14 for treatment, waiting for the next batch of discharges.

[0025] As Figure 3As shown in the figure, a first sealing hook head 121 is formed by folding the top of the second partition plate 12, and a second sealing hook head 211 is formed by folding the bottom of the movable shutter 21. The first sealing hook head 121 is closely attached to the plate surface of the movable shutter 21, and the second sealing hook head 211 is closely attached to the plate surface of the second partition plate 12. The first sealing hook head 121 and the second sealing hook head 211 form a double water sealing effect at the plate surface position, and the guide groove 26 plays a water sealing effect on the side of the plate. With the cooperation of the two, it is ensured that water does not abnormally enter the discharge area 15 from the connection position of the movable shutter 21.

[0026] The seed strains of the present utility model are screened from special environments such as highly polluted, deep sea, and polar regions. The strains can tolerate a salt content of 4% to 8%, a temperature of 55 to 57 °C, and a pH value range of 6.0 to 9.5, and can efficiently degrade organic pollutants in wastewater, such as DMF, DMSO, triethylamine, pyridine, piperazine, aniline, nitrobenzene, tetrahydrofuran, toluene, chlorobenzene, etc. The influent COD concentration of the present utility model can reach 30000 - 70000 mg / L, the total nitrogen concentration can reach 2000 - 3000 mg / L, and the total salt content is 3% - 5%. Based on this technology, the present utility model can remove 50% - 90% of COD and 35% - 40% of total nitrogen, relieve the microbial toxicity of the wastewater, and can well ensure the stable operation of the subsequent conventional activated sludge system.

[0027] The above is only the preferred implementation mode of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as the protection scope of the present utility model.

Claims

1. A microbial reaction tank, characterized in that, It includes a pool body (1) and a gate mechanism (2). A first partition plate (11) and a second partition plate (12) are installed in the pool body (1). Through the first partition plate (11) and the second partition plate (12), a mud-water confluence area (13), a continuous treatment area (14), and a discharge area (15) are separated and formed in the pool body (1). There is a gap between the first partition plate (11) and the bottom of the pool body (1), so that the mud-water confluence area (13) and the continuous treatment area (14) are connected at the bottom. The second partition plate (12) is installed with its bottom touching the bottom of the pool. The highest point of the second partition plate (12) is lower than that of the first partition plate (11), so that the continuous treatment area (14) and the discharge area (15) are connected at the high point. The gate mechanism (2) is correspondingly installed at the position where the second partition plate (12) is located. The gate mechanism (2) includes a movable gate plate (21) installed for lifting and moving. The movable gate plate (21) works in cooperation with the second partition plate (12). Through the movable gate plate (21), the partition height between the continuous treatment area (14) and the discharge area (15) can be changed. The pool body (1) is equipped with a sewage input mechanism (3) and a treated water discharge pipe orifice (4). The sewage input mechanism (3) is connected to the mud-water confluence area (13), and the treated water discharge pipe orifice (4) is connected to the discharge area (15).

2. The microbial reaction tank according to claim 1, characterized in that, The sewage input mechanism (3) includes a sewage pump (31) and a sewage input main pipe (32). The sewage input main pipe (32) is connected to the mud-water confluence area (13). The sewage input main pipe (32) is connected to the outlet end of the sewage pump (31) through a pipeline. The pool body (1) is also equipped with a sludge circulation mechanism (5). The sludge circulation mechanism (5) includes a sludge suction pipe orifice (51), a sludge pump (52), and a sludge return pipe (53). The sludge suction pipe orifice (51) is connected to the bottom of the continuous treatment area (14). The sludge return pipe (53) is connected to the mud-water confluence area (13). The sludge suction pipe orifice (51) is connected to the inlet end of the sludge pump (52) through a pipeline. The outlet end of the sludge pump (52) is connected to the sludge return pipe (53) through a pipeline. The sludge return pipe (53) is installed side by side with the sewage input main pipe (32). The sludge output by the sludge return pipe (53) and the chemical fiber wastewater output by the sewage input main pipe (32) can converge together.

3. The microbial reaction tank according to claim 2, characterized in that, The bottom of the pool body (1) forms an inclined bottom surface (16). The high point of the inclined bottom surface (16) is located in the mud-water confluence area (13), and the low point of the inclined bottom surface (16) is located in the continuous treatment area (14). An aeration pipe network (17) is laid on the inclined bottom surface (16). A sludge trench (141) that is recessed downward is opened at the bottom of the continuous treatment area (14). The sludge trench (141) is connected to the low point of the inclined bottom surface (16). The sludge suction pipe orifice (51) is connected to the inside of the sludge trench (141).

4. The microbial reaction tank according to claim 1, characterized in that, A top cover plate (6) is installed on the top of the mud-water confluence area (13). The top cover plate (6) can close the top opening of the mud-water confluence area (13). A plurality of material feeding openings (61) are provided on the top cover plate (6).

5. The microbial reaction tank according to claim 4, wherein, A mixing mechanism (7) is installed on the top cover plate (6). The mixing mechanism (7) includes a second motor (71) and a stirring shaft (72). The stirring shaft (72) is connected to the output end of the second motor (71). The stirring shaft (72) extends into the muddy water confluence area (13). A number of groups of stirring blades (73) are connected to the outer wall of the stirring shaft (72).

6. The microbial reaction tank according to claim 1, characterized in that, The gate mechanism (2) further includes a motor frame (22), a first motor (23), and a guide groove (26). The motor frame (22) is installed across the top of the pool body (1). The first motor (23) is installed on the motor frame (22). The output end of the first motor (23) is connected to a transmission screw rod (24). A linkage sleeve (25) is connected to the movable gate (21). The transmission screw rod (24) is threadedly connected to the linkage sleeve (25). The two guide grooves (26) are respectively installed on the first partition plate (11) and the inner wall of the pool body (1). The two guide grooves (26) are symmetrically arranged. The left and right ends of the movable gate (21) are respectively inserted into the two guide grooves (26).

7. The microbial reaction tank according to claim 6, wherein A first sealing hook head (121) is formed by folding the top of the second partition plate (12). A second sealing hook head (211) is formed by folding the bottom of the movable gate (21). The first sealing hook head (121) closely adheres to the plate surface of the movable gate (21). The second sealing hook head (211) closely adheres to the plate surface of the second partition plate (12).

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