CN216513063U - Anaerobic treatment device for high-concentration toxic organic wastewater - Google Patents
Anaerobic treatment device for high-concentration toxic organic wastewater Download PDFInfo
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- CN216513063U CN216513063U CN202122455270.XU CN202122455270U CN216513063U CN 216513063 U CN216513063 U CN 216513063U CN 202122455270 U CN202122455270 U CN 202122455270U CN 216513063 U CN216513063 U CN 216513063U
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Abstract
The utility model provides a high-concentration toxic organic wastewater anaerobic treatment device, which is characterized in that: including anaerobism device, anaerobism play water back flow, equalizing basin, inlet tube and the person in charge of intaking, the anaerobism device top be equipped with the three-phase separator, the anaerobism play water of three-phase separator is in each basin overflow to the ditch at top, one side of ditch is connected with the outlet pipe, the bottom of the ditch of anaerobism device is connected to the one end of anaerobism play water back flow, the other end of anaerobism play water back flow and the one end of inlet tube all stretch into to the equalizing basin in, the anaerobism device backward flow is through anaerobism play water back flow and system's intake and is got into the equalizing basin and mix in the equalizing basin together through the inlet tube. The utility model adopts the effluent backflow, and the backflow water and the inlet water are mixed in the regulating tank and then lifted to the water distribution system of the anaerobic device, thereby reducing the inlet water concentration of the inlet anaerobic device.
Description
Technical Field
The utility model relates to the technical field of anaerobic treatment, in particular to an anaerobic treatment device for high-concentration toxic organic wastewater.
Background
Anaerobic treatment is one of the common treatment sections of high-concentration toxic organic wastewater. The high-concentration toxic organic wastewater has the characteristics of high biological toxicity, difficult degradation and the like. The high-concentration toxic organic wastewater has larger self toxicity and the inlet water quality of the anaerobic reactor changes greatly, so the inlet water has larger impact on the anaerobic reactor. The water distribution system of the anaerobic treatment device is the key point of successful operation of the anaerobic reactor, but the water inlet load of the anaerobic treatment section of the wastewater is generally lower (less than 2kg/m3/d), and the anaerobic retention time is longer, so the anaerobic treatment device of the wastewater is generally higher and the water distribution area at the bottom is larger. In order to ensure the mixing effect of the sludge and water in the reactor, the water distribution system of the anaerobic wastewater treatment device can distribute water in groups in different areas, but most reaction devices still have uneven water distribution, and the bottom water distribution holes are easy to block, so that the problem of treatment effect reduction caused by poor mixing of the sludge and water in the anaerobic treatment device finally occurs.
Disclosure of Invention
The utility model provides a high-concentration toxic organic wastewater anaerobic treatment device, wherein one part of effluent of an anaerobic treatment device flows to the next stage for continuous treatment by self-flowing, the other part of the effluent flows back to a regulating tank, the reflux water and the influent are mixed in the regulating tank and then lifted to a water distribution system of the anaerobic treatment device together, the reflux mode can further reduce the influent concentration of the influent anaerobic system, reduce the impact of the influent on the anaerobic system, and ensure that the system is more stable, so that the anaerobic treatment device has stronger stability and adaptability, and compared with the internal reflux of the conventional anaerobic treatment device, the reflux of the effluent can effectively avoid the cavitation phenomenon of an anaerobic reflux pump caused by the entrained gas of the reflux water.
In order to solve the technical problem, the utility model provides an anaerobic treatment device for high-concentration toxic organic wastewater, which is characterized in that: including anaerobic treatment device, anaerobism play water back flow, equalizing basin, inlet tube and the person in charge of intaking, anaerobic treatment device top be equipped with the triphase separator, the anaerobism play water of triphase separator overflows to the ditch in through each basin in top, one side of the ditch is connected with the outlet pipe, and final play water is partly to flow to subordinate's processing unit through the outlet pipe automatically and continue to handle, and another part goes out the water and gets into anaerobic treatment device once more after flowing to the equalizing basin as anaerobism backward flow water automatically through anaerobism play water back flow, the bottom of the play ditch of anaerobic treatment device is connected to the one end of anaerobism play water back flow, the other end of anaerobism play water back flow and the one end of inlet tube all stretch into in the equalizing basin, and anaerobic treatment device backward flow water passes through anaerobism water back flow and system's intake and gets into the equalizing basin and mix in the equalizing basin together through the inlet tube, the main water inlet pipe is provided with a regulating tank lifting pump, and one end of the regulating tank lifting pump also extends into the regulating tank.
Further: the other end of the water inlet main pipe is communicated with the two water inlet branch pipes when approaching the anaerobic treatment device, the water inlet branch pipes are respectively communicated with the two water inlet branch pipes, the water inlet branch pipes are communicated with the two water inlet branch pipes, each water inlet branch pipe is connected with a water distribution main pipe, the water distribution main pipes enter the bottom from the top of the anaerobic treatment device, and the water distribution main pipes are communicated with the corresponding bottom water distribution circular pipes.
And further: the regulating reservoir lift pump is a water distribution and inlet pump of the anaerobic treatment device, the lift is controlled to be more than 10m higher than the water depth of the anaerobic tank, and high-pressure water distribution of the anaerobic treatment device is realized.
And further: the water inlet main pipe is provided with a first flowmeter, and the water inlet flow is controlled by the first flowmeter to keep the ascending flow velocity in the anaerobic treatment device at 1.5 m/h.
And further: the water inlet branch pipe is sequentially provided with a first adjusting butterfly valve and a second flow meter, and the flow of the water inlet branch pipe is equal by displaying and controlling the first adjusting butterfly valve through the second flow meter.
And further: the top of each water distribution main pipe connected with the water inlet branch pipe is provided with an adjusting butterfly valve, the water distribution is equally distributed through the adjusting butterfly valve, and the water inlet flow of each water distribution ring pipe at the bottom is equal through the equally distributed water.
And further: the service area of the water distribution ring pipe is not more than 30m2The water distribution ring pipe is provided with a plurality of water distribution nozzles, the diameter of each nozzle is about 10-15mm, the nozzles face to be vertical to the bottom of the anaerobic treatment device and are 30cm away from the bottom of the device, and the service area of each nozzle is controlled to be 1.5m2Within the range, the flow velocity of the nozzles is not lower than 2.5m/s, high-pressure equal-resistance water distribution is realized, and the flow of each nozzle is equal.
And further: the bottom of the anaerobic treatment device is synchronously provided with a sludge discharge system, each sludge discharge pipe is about 20cm away from the bottom of the tank, and residual sludge generated by the anaerobic treatment device of the sludge discharge system can be discharged.
After the structure is adopted, the effluent is refluxed, and the refluxed water and the inlet water are mixed in the regulating tank and then are lifted to the water distribution system of the anaerobic treatment device, so that the inlet water concentration of the inlet anaerobic treatment device is reduced, the impact load of the inlet water on the anaerobic treatment device is reduced, and the stability and the adaptability of the anaerobic treatment device are improved; the anaerobic treatment device adopts high-pressure water distribution to avoid the blockage of the bottom nozzle, and the bottom water distribution structure adopts equal-resistance water distribution to ensure that the water distribution is more uniform and the holes are not easy to block, and meanwhile, the water distribution pipe network is better maintained.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a water distribution system.
FIG. 2 is a water distribution structure view of the bottom of the anaerobic treatment device.
Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.
Fig. 4 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the anaerobic treatment device for high concentration toxic organic wastewater comprises an anaerobic treatment device 11, an anaerobic effluent return pipe 14, a regulating reservoir 12, an inlet pipe 13 and a main water inlet pipe 1, wherein a triphase separator 20 is arranged at the top of the anaerobic treatment device 11, anaerobic effluent of the triphase separator overflows into an effluent channel 21 through each water outlet tank 17 at the top, one side of the effluent channel is connected with a water outlet pipe 18, finally, one part of effluent flows to a subordinate treatment unit through the water outlet pipe 18 for continuous treatment, the other part of effluent flows into the anaerobic treatment device 11 again through the anaerobic effluent return pipe 14 as anaerobic return water flowing to the regulating reservoir 12, one end of the anaerobic effluent return pipe is connected to the bottom of the effluent channel of the anaerobic treatment device 11, the other end of the anaerobic effluent return pipe and one end of the inlet pipe both extend into the regulating reservoir, the return water of the anaerobic treatment device enters the regulating tank 12 together with the system inlet water through an anaerobic outlet water return pipe and is mixed in the regulating tank 12, the inlet water main pipe is provided with a regulating tank lifting pump 15, and one end of the regulating tank lifting pump also extends into the regulating tank 12. In the utility model, one part of the effluent of the anaerobic treatment device flows from the next stage to continue treatment, the other part of the effluent flows back to the regulating tank (the anaerobic system water inlet tank), and the return water and the inlet water are mixed in the regulating tank and then lifted to the water distribution system of the anaerobic treatment device together. The backflow mode can further reduce the water inlet concentration of the anaerobic system, reduce the impact on the anaerobic system, and make the system more stable, so that the anaerobic treatment device has stronger stability and adaptability. In addition, compared with the internal reflux of the conventional anaerobic treatment device, the reflux of the discharged water can effectively avoid the cavitation phenomenon of the anaerobic reflux pump caused by the entrained gas of the reflux water.
As shown in fig. 1, the other end of the main water inlet pipe is communicated with the two branch water inlet pipes 2 when approaching the anaerobic treatment device 11, the branch water inlet pipes are respectively communicated with the two branch water inlet pipes, the branch water inlet pipes are communicated with the two branch water inlet pipes, each branch water inlet pipe is connected with a main water distribution pipe, the main water distribution pipe 8 enters the bottom from the top of the anaerobic treatment device 11, and the main water distribution pipe is communicated with the corresponding bottom water distribution ring pipe 9. The whole inlet water mixed in the regulating reservoir is divided into two paths in the main inlet pipe and flows into the two branch inlet pipes 2 respectively, the inlet water flowing into each branch inlet pipe is divided into two paths and flows into the two branch inlet pipes, the inlet water flowing into each branch inlet pipe is divided into two paths and flows into the branch inlet pipes 6, the inlet water flowing into each branch inlet pipe flows into each main water distribution pipe 8 connected with the branch inlet pipe, and meanwhile, each main water distribution pipe 8 enters the bottom from the top of the anaerobic treatment device 11, so that the operation and the subsequent maintenance are more convenient; the inlet water flows into the bottom water distribution ring pipe corresponding to the inlet water through the main water distribution pipe and is sprayed out through the nozzles arranged at the bottom of the water distribution ring pipe. The water distribution main pipe enters the bottom of the anaerobic treatment device from the top of the anaerobic treatment device, and the maintenance is more convenient. The water inlet main pipe of the conventional anaerobic treatment device is buried underground and laid to each branch pipe and then to most pipelines of each branch pipe, each water distribution main pipe directly enters the anaerobic treatment device from the bottom, on one hand, the buried main pipe is leaked to cause the risk of polluting underground water, on the other hand, the water distribution main pipe is provided with an upper valve which is always in a high-pressure state at the bottom, the service life of the valve is short, the whole anaerobic treatment device is required to be emptied when the valve is overhauled, the normal operation of the device is influenced, and the overhauling is difficult. According to the utility model, each main water distribution pipe is turned into the bottom from the top of the anaerobic treatment device, so that the maintenance of a top valve is simpler and more convenient, and meanwhile, each branch water distribution pipe is laid in a pipe ditch at the top of the device, so that buried pipes are avoided as much as possible.
The lift pump 15 of the adjusting tank shown in fig. 4 is a water distribution and inlet pump of the anaerobic treatment device, and the lift is controlled to be more than 10m higher than the water depth of the anaerobic tank, so that high-pressure water distribution of the anaerobic treatment device is realized.
As shown in FIG. 4, the main water inlet pipe 1 is provided with a first flowmeter 16, which controls the flow rate of the inlet water to maintain the upward flow velocity of the anaerobic treatment apparatus 11 at 1.5 m/h.
As shown in figure 1, the water inlet branch pipe is sequentially provided with a first adjusting butterfly valve 3 and a second flow meter 4, and the first adjusting butterfly valve is controlled through the display of the second flow meter to realize equal flow of the water inlet branch pipe.
The top of each main water distribution pipe connected with the water inlet branch pipe shown in fig. 1 is provided with an adjusting butterfly valve 7, the water is distributed equally by the adjusting butterfly valve, and the water inlet flow of each water distribution ring pipe 9 at the bottom is equal by the water distribution equally.
The service area of the water distribution loop 9 shown in figures 1 and 2 is not more than 30m2A plurality of water distribution nozzles 10 are arranged on the water distribution ring pipe 9, the diameter of each nozzle is about 10-15mm, the nozzles face to be vertical to the bottom of the anaerobic treatment device 11 and are 30cm away from the bottom of the device, and the service area of each nozzle 10 is controlled to be 1.5m2Within the range, the flow velocity of the nozzles 10 is not lower than 2.5m/s, high-pressure equal-resistance water distribution is realized, and the flow of each nozzle 10 is equal. The sum of the cross sections of all the nozzles at the bottom is smaller than the cross section of the main water inlet pipe, the flow velocity of the main water inlet pipe is controlled to be 0.8m/s, the flow velocity of each nozzle is controlled to be not less than 2.5m/s, and each nozzle realizes high-resistance water distribution, so that the water spraying amount of each nozzle is basically consistent. Compared with a hole water spraying mode and a point-to-point water distribution mode, the water distribution mode has the advantages that the flow speed at the nozzle is high, the pressure is high, the blockage is not easy, the service area of a single nozzle is smaller, and the water distribution is more uniform. The water distribution system has the advantages of more uniform water distribution, less possibility of blockage, better mud-water mixing effect in the anaerobic treatment device and better treatment effect. By adopting the design, the anaerobic treatment device 11 can distribute water more densely and uniformly in a high-pressure equal-resistance water distribution mode, and can prevent the problem of nozzle blockage to a certain extent, so that the sludge-water mixing effect in the reaction device 11 is better, and the anaerobic reaction efficiency is improved.
As shown in figure 4, a sludge discharge system 19 is synchronously arranged at the bottom of the anaerobic treatment device 11, each sludge discharge pipe is about 20cm away from the bottom of the tank, and residual sludge generated by the anaerobic treatment device can be discharged through the sludge discharge system 19.
In conclusion, the utility model adopts the effluent reflux, and the reflux water and the inlet water are mixed in the regulating reservoir and then lifted to the water distribution system of the anaerobic treatment device, thereby reducing the inlet water concentration of the inlet anaerobic treatment device, reducing the impact load of the inlet water on the anaerobic treatment device, and improving the stability and the adaptability of the anaerobic treatment device; the anaerobic treatment device adopts high-pressure water distribution to avoid the blockage of the bottom nozzle, and the bottom water distribution structure adopts equal-resistance water distribution to ensure that the water distribution is more uniform and the holes are not easy to block, and meanwhile, the water distribution pipe network is better maintained.
In light of the foregoing description of the preferred embodiments of the present invention, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a poisonous organic waste water anaerobic treatment device of high enriched which characterized in that: including anaerobic treatment device (11), anaerobism play water back flow (14), equalizing basin (12), inlet tube (13) and the person in charge of (1) of intaking, anaerobic treatment device (11) top be equipped with three-phase separator (20), the anaerobism play water of three-phase separator overflows to play ditch (21) in through each basin (17) in top, the one side of play ditch is connected with outlet pipe (18), and it is partly to continue to handle to subordinate's processing unit through outlet pipe (18) automatically flow, and another part goes out water and gets into anaerobic treatment device (11) once more after flowing to equalizing basin (12) automatically as anaerobism return flow through anaerobism play water back flow (14), the bottom in the play ditch of anaerobic treatment device (11) is connected to the one end of anaerobism return flow, the other end of anaerobism return flow and the one end of inlet tube all stretch into to the equalizing basin, anaerobic treatment device return water passes through the anaerobism and goes out the water reflux pipe and system's water intaking and gets into equalizing basin (12) through the inlet tube together and mix in equalizing basin (12), the water intaking be responsible for and install equalizing basin elevator pump (15) and its one end also stretch into in equalizing basin (12).
2. The anaerobic treatment device for high-concentration toxic organic wastewater according to claim 1, characterized in that: the other end of the water inlet main pipe is communicated with the two water inlet branch pipes (2) when being close to the anaerobic treatment device (11), the water inlet branch pipes are respectively communicated with the two water inlet branch pipes, the water inlet branch pipes are communicated with the two water inlet branch pipes, each water inlet branch pipe is connected with a water distribution main pipe, the water distribution main pipes (8) enter the bottom from the top of the anaerobic treatment device (11), and the water distribution main pipes are communicated with the corresponding bottom water distribution ring pipes (9).
3. The high concentration toxic organic wastewater anaerobic treatment device according to any one of claims 1 or 2, characterized in that: the adjusting tank lift pump (15) is a water distribution and inlet pump of the anaerobic treatment device, and the lift is controlled to be more than 10m higher than the water depth of the anaerobic tank, so that high-pressure water distribution of the anaerobic treatment device is realized.
4. The high concentration toxic organic wastewater anaerobic treatment device according to any one of claims 1 or 2, characterized in that: the water inlet main pipe (1) is provided with a first flowmeter (16), and the water inlet flow is controlled by the first flowmeter to keep the rising flow velocity in the anaerobic treatment device (11) at 1.5 m/h.
5. The anaerobic treatment device for high-concentration toxic organic wastewater according to claim 2, characterized in that: the water inlet branch pipe is sequentially provided with a first adjusting butterfly valve (3) and a second flow meter (4), and the flow of the water inlet branch pipe is equal by controlling the first adjusting butterfly valve through the display of the second flow meter.
6. The anaerobic treatment device for high-concentration toxic organic wastewater according to claim 2, characterized in that: the top that each water distribution that the lateral conduit of intaking connects was responsible for all is equipped with adjusts butterfly valve (7), realizes dividing the water distribution equally through adjusting the butterfly valve, realizes again that each water distribution ring canal (9) inflow flow in bottom equals through dividing the water distribution equally.
7. The anaerobic treatment device for high-concentration toxic organic wastewater according to claim 2, characterized in that: the service area of the water distribution ring pipe (9) is not more than 30m2A plurality of water distribution ring pipes (9) are arrangedThe diameter of each water distribution nozzle (10) is about 10-15mm, the nozzle faces to be vertical to the bottom of the anaerobic treatment device (11) and is 30cm away from the bottom of the device, and the service area of each nozzle (10) is controlled to be 1.5m2Within the range, the flow velocity of the nozzles (10) is not lower than 2.5m/s, high-pressure equal-resistance water distribution is realized, and the flow of each nozzle (10) is also equal.
8. The anaerobic treatment device for high-concentration toxic organic wastewater according to claim 1, characterized in that: the bottom of the anaerobic treatment device (11) is synchronously provided with a sludge discharge system (19), each sludge discharge pipe is about 20cm away from the bottom of the tank, and residual sludge generated by the anaerobic treatment device of the sludge discharge system (19) can be discharged.
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| CN113754055A (en) * | 2021-10-12 | 2021-12-07 | 江苏南大华兴环保科技股份公司 | Water distribution system applied to anaerobic treatment device for high-concentration toxic organic wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754055A (en) * | 2021-10-12 | 2021-12-07 | 江苏南大华兴环保科技股份公司 | Water distribution system applied to anaerobic treatment device for high-concentration toxic organic wastewater |
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