CN211813665U - Device for recycling organic acid and synchronously deodorizing by using UASB (upflow anaerobic sludge blanket) - Google Patents
Device for recycling organic acid and synchronously deodorizing by using UASB (upflow anaerobic sludge blanket) Download PDFInfo
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- CN211813665U CN211813665U CN202020170443.6U CN202020170443U CN211813665U CN 211813665 U CN211813665 U CN 211813665U CN 202020170443 U CN202020170443 U CN 202020170443U CN 211813665 U CN211813665 U CN 211813665U
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Abstract
The utility model discloses an utilize UASB to retrieve synchronous deodorant device of organic acid, including UASB acidizing reactor, the inside of above-mentioned UASB acidizing reactor is provided with the inlet tube, and above-mentioned inlet tube links to each other with the sewage pipe through first water pump, is provided with gas-liquid mixer on the inlet tube simultaneously, is provided with air intlet on the above-mentioned gas-liquid mixer, and the top of above-mentioned UASB acidizing reactor still is provided with contains sour gas pipeline. The utility model discloses can retrieve organic acid by-product in step, realize the recovery of retrieving the carbon source among the sewage treatment process, thereby reduce the sewage treatment running cost of enterprise, reduce the inside balanced partial pressure of UASB through negative pressure absorbing device and last volatile organic acid, continuously carry out the PH that hydrolytic acidification reduces in the reactor, carry out chemical reaction and recycle to organic acid through negative pressure absorbing device, the hydrogen sulfide gas body that produces in the reaction sequence is retrieved simultaneously, odor in the waste water that can greatly reduced and deodorization.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to utilize UASB to retrieve synchronous deodorant device of organic acid.
Background
In the technical field of sewage treatment, a UASB anaerobic reactor is adopted in the current process of degrading COD (chemical oxygen demand) of high-concentration organic wastewater in combination with an aerobic wastewater treatment process, and the reaction stage of the anaerobic reactor comprises hydrolysis, acidification, methanogenesis and COD degradation, and H2S can be generated due to the existence of sulfide; most of high-concentration organic wastewater removes a large amount of COD through anaerobic treatment, which results in consumption of carbon source, and no related organic acid recovery device exists at present, thus easily causing waste of organic acid.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize UASB to retrieve synchronous deodorant device of organic acid, solve the extravagant problem of organic acid among the present high concentration organic wastewater treatment process.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides an utilize UASB to retrieve synchronous deodorant device of organic acid, includes UASB acidizing reactor, and the inside of above-mentioned UASB acidizing reactor is provided with the inlet tube, and above-mentioned inlet tube links to each other with the sewage pipe through first water pump, is provided with the gas-liquid mixer on the inlet tube simultaneously, is provided with air intlet on the above-mentioned gas-liquid mixer, and the top of above-mentioned UASB acidizing reactor still is provided with contains sour gas pipeline.
Preferably, a water distributor is further arranged in the UASB acidification reactor, the water distributor is communicated with the water inlet pipe, more than two water distribution water outlet pipes are arranged on the water distributor, and the water distribution water outlet pipes are symmetrically arranged in a downward inclined manner.
Preferably, a first valve is disposed on a pipeline connecting the first water pump and the sewage pipe, a second valve is disposed on a pipeline between the first water pump and the gas-liquid mixer, a return pipeline is further disposed in the UASB acidification reactor, the return pipeline is connected to a water inlet of the first water pump, and a third valve is disposed on the return pipeline.
Preferably, a clear water pipe is further connected to a pipeline connecting the first water pump and the sewage pipe, a backwash branch pipe is provided between the pipeline between the first water pump and the second valve and the return pipeline, and a fourth valve is provided on the backwash branch pipe.
Preferably, the acid-containing gas pipeline is connected with the reaction tank through a negative pressure absorption device, a water pumping pipeline is connected to the lower portion of the reaction tank, the water pumping pipeline is connected with the negative pressure absorption device, and a second water pump is arranged on the water pumping pipeline.
Preferably, the negative pressure absorption device comprises a reaction cavity and a water outlet pipe communicated with the bottom of the reaction cavity, the top of the reaction cavity is provided with a negative pressure water inlet pipe extending into the reaction cavity, the side wall of the reaction cavity is provided with a gas inlet connected with the acid-containing gas pipeline, the water pumping pipeline is connected to the negative pressure water inlet pipe, and the negative pressure water outlet pipe extends into the reaction box.
Preferably, the negative pressure water inlet pipe is a pipe having a diameter gradually decreasing in a water inlet direction, and a gradually decreasing portion is located inside the reaction chamber.
Preferably, a vertical second reaction channel is further arranged above the reaction box, the second reaction channel is communicated with the reaction box, a spray tower is arranged at the upper part in the second reaction channel, and a filler is arranged below the spray tower; the spray tower is connected with a water pumping pipeline through a pipeline.
Preferably, a drain pipe is provided on an upper side wall of the UASB acidification reactor, and a fifth valve is provided on the drain pipe.
Preferably, the UASB acidification reactor is further provided with a first sludge discharge pipe at the bottom thereof, the first sludge discharge pipe is provided with a sixth valve and connected to the water inlet of the first water pump, a second sludge discharge pipe is provided on the pipe between the first water pump and the gas-liquid mixer, and the second sludge discharge pipe is provided with a seventh valve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses can retrieve organic acid by-product in step, realize the recovery of the carbon source among the sewage treatment process, thereby reduce the sewage treatment running cost of enterprise, through passing through sewage pipe suction with high concentration waste water promptly and entering gas-liquid mixer, then carry the mixed transport of gas-liquid to UASB acidification reactor behind inhaling a small amount of air through gas-liquid mixer, high concentration waste water forms organic acid (plans to make methane fungus through aquatic oxygen and produce methane after the acidizing of hydrolysising in UASB acidification reactor, thereby control UASB reactor's reaction phase, the accumulation of effectual assurance organic acid), volatile organic acid is through the discharge of acid-containing gas pipeline and collects.
The utility model discloses a negative pressure absorbing device reduces UASB internal balance partial pressure and lasts volatile organic acid, lasts to carry out hydrolysis acidification and reduces the PH in the reactor, carries out chemical reaction and recycle to organic acid through negative pressure absorbing device, retrieves through the absorption liquid hydrogen sulfide gas that produces in the reaction sequence simultaneously, can the odor in the greatly reduced waste water and deodorize.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the structure of the negative pressure absorption device and the reaction chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 shows the schematic structural diagram of the present invention, referring to fig. 1, for an embodiment of the present invention: the utility model provides an utilize UASB to retrieve synchronous deodorant device of organic acid, includes UASB acidizing reactor 1, the inside of above-mentioned UASB acidizing reactor 1 is provided with inlet tube 2, and above-mentioned inlet tube 2 links to each other with the sewage pipe through first water pump 3, is provided with gas-liquid mixer 4 on inlet tube 2 simultaneously, is provided with air intlet on above-mentioned gas-liquid mixer 4, and the top of above-mentioned UASB acidizing reactor 1 still is provided with contains sour gas pipeline 5. This embodiment can retrieve organic acid by-product in step, realize the recovery of the sewage treatment in-process recovery carbon source, thereby reduce the sewage treatment running cost of enterprise, through passing through the sewage pipe suction with high concentration waste water and getting into in the gas-liquid mixer promptly, then inhale back gas-liquid mixture through the gas-liquid mixer and carry to UASB acidification reactor in, high concentration waste water forms organic acid (plans to make methane-producing bacterium through aquatic oxygen and produce methane, thereby control UASB reactor's reaction phase, the accumulation of effectual assurance organic acid) after carrying out the hydrolytic acidification in UASB acidification reactor, volatile organic acid is through the collection of containing acid gas pipeline discharge.
Further, in order to improve the reaction efficiency, a water distributor 6 is further arranged in the UASB acidification reactor 1, the water distributor 6 is communicated with the water inlet pipe 2, the water distributor 6 is provided with more than two water distribution water outlet pipes 61, and the water distribution water outlet pipes 61 are symmetrically and obliquely arranged downwards. After being mixed by the gas-liquid mixer, the high-concentration wastewater with air is discharged by the water distributor, and the sewage in the reaction tank can be stirred due to the high water outlet speed of the water distribution water outlet pipe, so that the service area of the reaction tank is enlarged.
Furthermore, in order to facilitate the control of the high concentration wastewater inlet, a first valve 7 is disposed on a pipeline connecting the first water pump 3 and the sewage pipe, a second valve 8 is disposed on a pipeline between the first water pump 3 and the gas-liquid mixer 4, a return pipeline 9 is further disposed in the UASB acidification reactor 1, the return pipeline 9 is connected to a water inlet of the first water pump 3, and a third valve 10 is disposed on the return pipeline 9. The first valve and the second valve are opened to enable the water to smoothly enter; meanwhile, a return pipeline is arranged in the UASB acidification reactor, so that sewage in the UASB acidification reactor can be pumped into the gas-liquid mixer again for mixing reaction, and the reaction rate and effect are improved.
To the return line, the return line causes mud to block up the pipeline easily when refluxing UASB acidizing reactor mediumground sewage, and when mud blockked up, sewage can not normally flow back, consequently is provided with backwash mechanism, and backwash mechanism specifically is: a clear water pipe is connected to the pipeline connecting the first water pump 3 and the sewage pipe, a back washing branch pipe 11 is arranged between the pipeline between the first water pump 3 and the second valve 8 and the return pipeline 9, and a fourth valve 12 is arranged on the back washing branch pipe 11. Namely, during backwashing, the second valve and the third valve are closed, then the fourth valve is opened, and clean water is pumped into the backflow pipeline through the clean water pipe to flush the backflow pipeline, so that normal use of the backflow pipeline is guaranteed.
In order to improve the recovery rate of the organic acid, the acid-containing gas pipeline 5 is connected with a reaction box 13 through a negative pressure absorption device, a water pumping pipeline 14 is connected to the lower part of the reaction box 13, the water pumping pipeline 14 is connected with the negative pressure absorption device, and a second water pump 15 is arranged on the water pumping pipeline 14. And absorbing the acid-containing gas collected by the acid-containing gas pipeline into a reaction box through a negative pressure absorption device to perform absorption reaction, wherein sodium hydroxide absorption liquid is filled in the reaction box, and sodium organic acid liquid is produced after the sodium hydroxide absorption liquid is absorbed. The absorption liquid introduced into the reaction box through the water pumping pipeline enters the negative pressure absorption device, negative pressure can be formed in the negative pressure absorption device, the movement of gas-liquid mixture in the negative pressure absorption device is accelerated, and therefore the reaction rate is improved.
Further, in order to make the negative pressure absorption device form negative pressure, as shown in fig. 2, the negative pressure absorption device includes a reaction chamber 16 and a negative pressure water outlet pipe 17 communicated with the bottom of the reaction chamber 16, a negative pressure water inlet pipe 19 extending into the reaction chamber 16 is disposed at the top of the reaction chamber 16, an air inlet 18 connected to the acid-containing gas pipe 5 is disposed on the side wall of the reaction chamber 16, the water pumping pipe 14 is connected to the negative pressure water inlet pipe 19, and the negative pressure water outlet pipe 17 extends into the reaction chamber 13. The absorption liquid is pumped into the negative pressure absorption device through the water pumping pipeline, meanwhile, volatile organic acid is introduced into the negative pressure absorption device, the absorption liquid and the volatile organic acid are subjected to chemical reaction in the negative pressure absorption device to recover the organic acid, and meanwhile, the flowing speed of a gas-liquid mixture can be accelerated through gas-liquid mixing, so that the reaction speed is increased.
In addition, in order to carry out interception impact on the gas-liquid mixture and increase the reaction speed, a turbulent flow pipe 29 is arranged inside the negative pressure water outlet pipe 17, and the turbulent flow pipe 29 is a small pipe arranged along the radial direction of the negative pressure water outlet pipe 17 and is provided with a plurality of intervals.
The negative pressure water inlet pipe 19 is a pipe having a diameter gradually reduced in the water inlet direction, and the gradually reduced portion is located inside the reaction chamber 16. Just because the inlet tube that reduces gradually can make the inside of reaction chamber form the negative pressure, accelerate the flow of liquid or gas-liquid mixture, accelerate the speed of chemical reaction.
Further, a part of organic acid still volatilizes in the reaction box, and therefore needs to be treated again, that is, a vertical second reaction channel 26 is further provided above the reaction box, the second reaction channel 26 is communicated with the reaction box 13, a spray tower 27 is provided at an upper portion in the second reaction channel 26, and a packing 28 is provided below the spray tower 27; the spray tower 27 is connected to the pumping pipeline 14 through a pipeline. Absorbing part of organic acid through a second reaction channel above the reaction box, synchronously pumping absorption liquid into a spray tower through a water pumping pipeline to spray downwards, and performing secondary treatment on the treated organic acid gas to reduce the discharge of the organic acid gas; the packing is arranged below the spray tower, so that the retention time and the contact area of the absorption liquid in the second reaction channel can be increased, and the reaction efficiency is improved.
Meanwhile, in order to conveniently discharge excessive sewage in the UASB acidification reactor, a drain pipe 20 is provided on the upper side wall of the UASB acidification reactor 1, and a fifth valve 25 is provided on the drain pipe 20.
In addition, a large amount of sludge is generated at the bottom of the UASB acidification reactor, in order to discharge the sludge, a first sludge discharge pipe 21 is further disposed at the bottom of the UASB acidification reactor 1, a sixth valve 22 is disposed on the first sludge discharge pipe 21 and connected to the water inlet of the first water pump 3, a second sludge discharge pipe 23 is disposed on the pipe between the first water pump 3 and the gas-liquid mixer 4, and a seventh valve 24 is disposed on the second sludge discharge pipe 23. And when the water is discharged, the first valve, the second valve, the third valve and the fourth valve are closed, and the sixth valve and the seventh valve are opened.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (10)
1. The utility model provides an utilize UASB to retrieve synchronous deodorant device of organic acid which characterized in that: including UASB acidizing reactor (1), the inside of UASB acidizing reactor (1) is provided with inlet tube (2), inlet tube (2) link to each other with the sewage pipe through first water pump (3), are provided with gas-liquid mixer (4) on inlet tube (2) simultaneously, be provided with air intlet on gas-liquid mixer (4), the top of UASB acidizing reactor (1) still is provided with contains sour gas pipeline (5).
2. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 1, wherein: still be provided with water-locator (6) in UASB acidizing reactor (1), water-locator (6) with inlet tube (2) are linked together, be provided with water distribution outlet pipe (61) more than two on water-locator (6), water distribution outlet pipe (61) symmetry and downward sloping setting.
3. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 1, wherein: be provided with first valve (7) on the pipeline that first water pump (3) and sewer pipe are connected, be provided with second valve (8) on the pipeline between first water pump (3) and gas-liquid mixer (4), still be provided with backflow pipeline (9) in UASB acidizing reactor (1), backflow pipeline (9) with the water inlet of first water pump (3) links to each other, and be provided with third valve (10) on backflow pipeline (9).
4. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 3, wherein: the pipeline that first water pump (3) and sewer pipe are connected still is connected with the clear water pipe, the pipeline between first water pump (3) and second valve (8) with be provided with backwash branch pipe (11) between return line (9), be provided with fourth valve (12) on backwash branch pipe (11).
5. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 1, wherein: contain sour gas pipeline (5) and link to each other with reaction box (13) through negative pressure absorbing device, the sub-unit connection of reaction box (13) has water pumping pipeline (14), water pumping pipeline (14) with negative pressure absorbing device links to each other and be provided with second water pump (15) on water pumping pipeline (14).
6. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 5, wherein: negative pressure absorbing device include reaction chamber (16) and with negative pressure outlet pipe (17) that reaction chamber (16) bottom is linked together, the top of reaction chamber (16) is provided with stretches to its inside negative pressure inlet tube (19), the lateral wall of reaction chamber (16) be provided with air inlet (18) that contain sour gas pipeline (5) and link to each other, it connects to draw water pipeline (14) on negative pressure inlet tube (19), negative pressure outlet pipe (17) stretch into in reaction box (13).
7. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 6, wherein: the negative pressure water inlet pipe (19) is a pipeline with the diameter gradually reduced along the water inlet direction, and the gradually reduced part is positioned in the reaction cavity (16).
8. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 5, wherein: a vertical second reaction channel (26) is also arranged above the reaction box, the second reaction channel (26) is communicated with the reaction box (13), a spray tower (27) is arranged at the upper part in the second reaction channel (26), and a filler (28) is arranged below the spray tower (27); the spray tower (27) is connected with a water pumping pipeline (14) through a pipeline.
9. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 1, wherein: be provided with drainage pipe (20) on the upper portion lateral wall of UASB acidizing reactor (1), be provided with fifth valve (25) on drainage pipe (20).
10. The apparatus for simultaneous deodorization using UASB recovery of organic acids according to claim 1, wherein: the bottom of UASB acidizing reactor (1) still is provided with first row mud pipeline (21), be provided with sixth valve (22) on first row mud pipeline (21), and with the water inlet of first water pump (3) links to each other, be provided with second row mud pipeline (23) on the pipeline between first water pump (3) and gas-liquid mixer (4), be provided with seventh valve (24) on second row mud pipeline (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020170443.6U CN211813665U (en) | 2020-02-14 | 2020-02-14 | Device for recycling organic acid and synchronously deodorizing by using UASB (upflow anaerobic sludge blanket) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020170443.6U CN211813665U (en) | 2020-02-14 | 2020-02-14 | Device for recycling organic acid and synchronously deodorizing by using UASB (upflow anaerobic sludge blanket) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072144A (en) * | 2020-02-14 | 2020-04-28 | 怡灏环境技术有限公司 | Device for recycling organic acid and synchronously deodorizing by using UASB (upflow anaerobic sludge blanket) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072144A (en) * | 2020-02-14 | 2020-04-28 | 怡灏环境技术有限公司 | Device for recycling organic acid and synchronously deodorizing by using UASB (upflow anaerobic sludge blanket) |
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