CN211570245U - UASB anaerobic reaction device suitable for landfill leachate handles - Google Patents
UASB anaerobic reaction device suitable for landfill leachate handles Download PDFInfo
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- CN211570245U CN211570245U CN201922445346.3U CN201922445346U CN211570245U CN 211570245 U CN211570245 U CN 211570245U CN 201922445346 U CN201922445346 U CN 201922445346U CN 211570245 U CN211570245 U CN 211570245U
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Abstract
The utility model discloses a UASB anaerobic reaction device suitable for landfill leachate handles, including cell body anaerobism cell body, water distribution facility, row's mud facility and hydrologic cycle facility. The water distribution facility comprises a water inlet lifting pump, a water inlet main pipe and a water inlet branch pipe; the sludge discharge facility comprises a sludge discharge pump, a sludge discharge main pipe and a sludge discharge main pipe; the water circulation facility comprises a circulation water inlet main pipe, a circulation pump and a circulation water outlet main pipe; the water inlet main pipe is connected with a plurality of water inlet main pipes, and the tail ends of the water inlet main pipes are vertically connected with a plurality of water inlet branch pipes; the main sludge discharge pipe is connected with a plurality of sludge discharge main pipes; the circulating water inlet main pipe is connected with a plurality of circulating water inlet main pipes, the circulating water inlet main pipes extend into the tank body, and the circulating water outlet main pipe is communicated with the water inlet main pipe. The utility model discloses the water distribution is even, avoids sewage intake short current, and the mud of arranging is stable, improves anaerobism play water quality of water, reduces the intensity that personnel maintained.
Description
Technical Field
The utility model relates to a high concentration organic wastewater handles field, in particular to UASB anaerobic reaction unit suitable for landfill leachate handles.
Technical Field
As a main biochemical means for treating the UASB anaerobic reaction tank suitable for treating the landfill leachate, the UASB (upflow anaerobic sludge blanket reactor) has the characteristics of high treatment load, no need of mechanical stirring, low operating cost and the like, and can adapt to load impact with larger amplitude.
The wastewater from the UASB reactor should be introduced into the bottom of the reactor as uniformly as possible, the wastewater passing down through a sludge bed containing granular sludge or flocculent sludge. Some of the gas formed in the sludge blanket adheres to the surface of the sludge. The sludge and the gas rise to the three-phase separator along with the water flow, and then the separation of the gas, the water and the sludge is realized. In order to obtain higher anaerobic sludge activity and settleability, an anaerobic internal circulation mode is generally adopted to maintain a certain ascending flow rate.
The UASB reactor generally includes a three-phase separator, a water distributor, a sludge discharge pipe, and a circulation pipe. In the prior art, the arrangement modes of the water distribution pipe, the sludge discharge pipe and the circulating pipe are unreasonable, and the problems of hydraulic short flow caused by uneven water distribution, overhigh sludge concentration and lowered sludge activity caused by unsmooth sludge discharge, hydraulic short flow caused by poor position of the circulating pipe and the like often occur, so that the UASB treatment effect is greatly reduced.
In view of the above, it is necessary to provide a UASB reaction apparatus to improve the anaerobic treatment effect.
Disclosure of Invention
The utility model aims to solve the problem that to the shortcoming among the above-mentioned prior art, put forward improvement scheme or alternative, especially a UASB anaerobic reaction device suitable for landfill leachate handles, through the optimization to inlet tube, circulating pipe and mud pipe installation setting, improve the anaerobic treatment effect.
In order to solve the above problem, the utility model discloses a scheme as follows:
a UASB anaerobic reaction device suitable for landfill leachate treatment comprises an anaerobic reaction tank body, a water distribution facility, a sludge discharge facility and a water circulation facility, wherein a three-phase separator is arranged at the upper part in the anaerobic reaction tank body, and the water distribution facility comprises a water inlet lifting pump, a water inlet main pipe and a water inlet branch pipe which are sequentially connected; the sludge discharge facility comprises a sludge discharge pump, a sludge discharge main pipe and a sludge discharge main pipe which are connected in sequence; the water circulation facility comprises a circulation water inlet main pipe, a circulation pump and a circulation water outlet main pipe;
the main water inlet pipe is connected with a plurality of main water inlet pipes, the main water inlet pipes vertically extend to the middle lower part of the anaerobic reaction tank body, and the tail end of each main water inlet pipe is vertically connected with a water inlet branch pipe;
the sludge discharge main pipe is connected with a plurality of sludge discharge branch pipes, and a plurality of sludge discharge main pipes extend into the anaerobic reaction tank body and are inconsistent in height;
the circulating water inlet main pipe is connected with a plurality of circulating water inlet main pipes, the circulating water inlet main pipes extend into the tank body of the anaerobic reaction tank, and the circulating water outlet main pipe is communicated with the water inlet main pipe.
Furthermore, a plurality of circulating water inlet main pipes in the anaerobic reaction tank body are horizontally arranged, the installation heights are the same, the circulating water inlet main pipe in the middle is longest, and the two sides are in gradient shortening.
Further, when the overlooking cross section of the anaerobic reaction tank body is circular, the length range of the circulating water inlet main pipe is 0.3-1.5 times of the radius length of the cross section; when the overlooking cross section of the anaerobic reaction tank body is rectangular, the length range of the circulating water inlet main pipe is 0.3-2 times of the length of the short side of the cross section.
Furthermore, the water distribution form of the water inlet branch pipe is perforation aeration or aeration disk aeration.
Furthermore, the distance between the tail ends of the plurality of water inlet branch pipes and the bottom surface of the anaerobic reaction tank body is not less than 170mm, and the vertical height error of the tail ends of the water inlet branch pipes is not more than 10 mm.
Furthermore, the plurality of branch sludge discharge main pipes are horizontally arranged at the middle part and the bottom part in the anaerobic reaction tank body and gradually increase from top to bottom. The sludge in the anaerobic reaction tank body is distributed in a gradient way and gradually changes from top to bottom (under the action of gravity), so that sludge discharge pipes with different heights are arranged.
Further, when the overlooking cross section of the anaerobic reaction tank body is circular, the length range of the sludge discharge main pipe is 0.3-1.0 time of the radius length of the cross section; when the overlooking cross section of the anaerobic reaction tank body is rectangular, the length range of the sludge discharge main pipe is 0.3-2.0 times of the length of the short side of the cross section.
Furthermore, the difference between the installation height of the sludge discharge main pipe in the anaerobic reaction tank body and the height of the tail end of the water inlet branch pipe is larger than 100 mm.
Furthermore, the bottom in the anaerobic reaction tank body is provided with a sludge hopper, so that sludge is gathered, hydraulic dead zones are arranged around, and excessive sludge accumulation is prevented.
Has the advantages that:
the utility model adopts a novel water inlet pipe design, can realize uniform water distribution and form uniform ascending water flow, thereby achieving higher anaerobic treatment efficiency; through the design of the novel circulating water inlet pipe, hydraulic short flow can be effectively avoided, so that higher anaerobic treatment efficiency is achieved; through the design of a novel sludge discharge pipe, anaerobic sludge can be efficiently and stably continuously discharged, so that the anaerobic sludge in the reactor keeps higher activity.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
Fig. 2 is a schematic top view of the circulation water inlet pipe of the present application.
In the figure: 1-a water inlet lift pump; 2-a main water inlet pipe; 21-water inlet main pipe; 22-water inlet branch pipe; 3-a circulating pump; 31-a main circulating water inlet pipe; 32-circulating water inlet main pipe; 33-a main circulating water outlet pipe; 4-a sludge discharge pump; 41-sludge discharge main pipe; 42-sludge discharge main pipe; 5-anaerobic reaction tank body; 6-a three-phase separator; 7-sludge bucket.
Detailed Description
The invention is further described with reference to the following embodiments in conjunction with the accompanying drawings.
The utility model comprises an anaerobic reaction tank body, a water distribution facility, a sludge discharge facility and a water circulation facility, wherein a three-phase separator 6 is arranged at the upper part in the anaerobic reaction tank body, and the water distribution facility comprises a water inlet lift pump 1, a water inlet main pipe 2, a water inlet main pipe 21 and a water inlet branch pipe 22 which are connected in sequence; the sludge discharge facility comprises a sludge discharge pump 4, a sludge discharge main pipe 41 and a sludge discharge main pipe 42 which are connected in sequence; the water circulation facility comprises a circulation water inlet main pipe 32, a circulation water inlet main pipe 31, a circulation pump 3 and a circulation water outlet main pipe 33.
The main water inlet pipe 2 is connected with a plurality of main water inlet pipes 21, the main water inlet pipes 21 vertically extend to the middle lower part of the anaerobic reaction tank body, and the tail end of each main water inlet pipe 21 is vertically connected with a branch water inlet pipe 22. The water distribution form of the water inlet branch pipe 22 is perforation aeration or aeration disk aeration. The distance between the tail end of the branch water inlet pipe 22 and the bottom surface of the tank body is not less than 170mm, and the vertical height error of the tail end of the branch water inlet pipe 22 is not more than 10 mm.
The sludge discharge main pipe is connected with a plurality of sludge discharge main pipes 42, and the sludge discharge main pipes 42 are horizontally arranged at the middle part and the bottom part of the inner side of the tank body and gradually increase from top to bottom.
The circulating water inlet main pipe 31 is connected with a plurality of circulating water inlet main pipes 32, and the circulating water outlet main pipe 33 is communicated with the water inlet main pipe 2. A plurality of circulating water inlet main pipes 32 in the anaerobic reaction tank body are horizontally arranged, the installation heights are the same, the circulating water inlet main pipe 32 in the middle of the anaerobic reaction tank body is longest, and the two sides of the anaerobic reaction tank body are shortened in a gradient manner.
When the overlooked cross section of the tank body is circular, the length range of the circulating water inlet main pipe 32 is 0.3-1.5 times of the radius length of the cross section; when the overlooking cross section of the tank body is rectangular, the length range of the circulating water inlet main pipe 32 is 0.3-2 times of the length of the short side of the cross section.
When the overlooked cross section of the tank body is circular, the length range of the sludge discharge main pipe 42 is 0.3-1.0 time of the radius length of the cross section; when the overlooked cross section of the tank body is rectangular, the length range of the sludge discharge main pipe 42 is 0.3-2.0 times of the length of the short side of the cross section.
The difference between the installation height of the sludge discharge main pipe 42 in the anaerobic reaction tank body and the height of the tail end of the water inlet branch pipe 22 is larger than 100 mm.
The bottom in the anaerobic reaction tank body is provided with a sludge hopper 7, so that sludge is gathered, hydraulic dead zones are arranged around, and excessive sludge accumulation is prevented.
The utility model discloses when concrete implementation: the tank body of the anaerobic reaction tank can adopt an enamel tank assembled structure or a reinforced concrete structure. The front end of the water inlet pipe is provided with a lift pump. The rear end of the sludge discharge pipe is provided with a sludge discharge pump. Wastewater passes through the main water inlet pipe 2, the main water inlet pipe 21 and the branch water inlet pipe 22 in sequence under the action of the lifting pump 1 and then uniformly enters the anaerobic reaction tank body. Under the disturbance of water flow impact, the full mixing reaction of water flow and sludge is realized, and meanwhile, part of ascending water flow enters the circulating water outlet main pipe 33 through the circulating water inlet main pipe 32 and the circulating water inlet main pipe 31 in sequence under the action of the anaerobic circulating pump 3. Anaerobic circulating water and anaerobic inlet water are mixed in the main inlet pipe 2 and sequentially pass through the main inlet pipe 21 and the branch inlet pipe 22 and uniformly enter the anaerobic reaction tank. Part of anaerobic sludge is converged into a sludge discharge main pipe 41 through a sludge discharge main pipe 42 and enters a sludge tank under the action of an anaerobic sludge discharge pump 4.
Claims (9)
1. A UASB anaerobic reaction device suitable for landfill leachate treatment comprises an anaerobic reaction tank body, a water distribution facility, a sludge discharge facility and a water circulation facility, wherein a three-phase separator is arranged at the upper part in the anaerobic reaction tank body; the sludge discharge facility comprises a sludge discharge pump, a sludge discharge main pipe and a sludge discharge main pipe which are connected in sequence; the water circulation facility comprises a circulation water inlet main pipe, a circulation pump and a circulation water outlet main pipe;
the main water inlet pipe is connected with a plurality of main water inlet pipes, the main water inlet pipes vertically extend to the middle lower part of the anaerobic reaction tank body, and the tail end of each main water inlet pipe is vertically connected with a water inlet branch pipe;
the sludge discharge main pipe is connected with a plurality of sludge discharge branch pipes, and a plurality of sludge discharge main pipes extend into the anaerobic reaction tank body and are inconsistent in height;
the circulating water inlet main pipe is connected with a plurality of circulating water inlet main pipes, the circulating water inlet main pipes extend into the tank body of the anaerobic reaction tank, and the circulating water outlet main pipe is communicated with the water inlet main pipe.
2. The UASB anaerobic reaction apparatus for landfill leachate treatment according to claim 1, wherein the circulating water inlet main pipes are installed horizontally in the anaerobic reaction tank, and have the same height, and the central circulating water inlet main pipe has the longest length and two sides are shortened in a gradient manner.
3. The UASB anaerobic reaction device suitable for landfill leachate treatment according to claim 2, wherein when the overlooking cross section of the anaerobic reaction tank body is circular, the length of the circulating water inlet main pipe ranges from 0.3 to 1.5 times of the radius length of the cross section; when the overlooking cross section of the anaerobic reaction tank body is rectangular, the length range of the circulating water inlet main pipe is 0.3-2 times of the length of the short side of the cross section.
4. The UASB anaerobic reaction apparatus for landfill leachate treatment according to claim 1, wherein the water distribution form of the water inlet branch pipe is perforated aeration or aeration disk aeration.
5. The UASB anaerobic reaction apparatus for landfill leachate treatment according to claim 1, wherein the distance from the end of each branch inlet pipe to the bottom of the anaerobic reaction tank is not less than 170mm, and the vertical height error of the end of each branch inlet pipe is not more than 10 mm.
6. The UASB anaerobic reaction apparatus for landfill leachate treatment according to claim 1, wherein the branch sludge discharge main pipes are installed horizontally at the middle and bottom of the anaerobic reaction tank, and gradually increase from top to bottom.
7. The UASB anaerobic reaction device suitable for landfill leachate treatment according to claim 6, wherein when the overlooking cross section of the anaerobic reaction tank body is circular, the length of the sludge discharge main pipe ranges from 0.3 to 1.0 times of the radius length of the cross section; when the overlooking cross section of the anaerobic reaction tank body is rectangular, the length range of the sludge discharge main pipe is 0.3-2.0 times of the length of the short side of the cross section.
8. The UASB anaerobic reaction apparatus for landfill leachate treatment according to claim 1, wherein the difference between the installation height of the sludge discharge main pipe and the height of the end of the water inlet branch pipe in the anaerobic reaction tank is greater than 100 mm.
9. The UASB anaerobic reaction apparatus for landfill leachate treatment according to claim 1, wherein the anaerobic reaction tank is provided with a sludge hopper at the bottom.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113788530A (en) * | 2021-10-09 | 2021-12-14 | 河北科技大学 | UASB reactor and hydraulic control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788530A (en) * | 2021-10-09 | 2021-12-14 | 河北科技大学 | UASB reactor and hydraulic control method thereof |
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