CN212640072U - Acrylamide sewage treatment device - Google Patents
Acrylamide sewage treatment device Download PDFInfo
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- CN212640072U CN212640072U CN202020644527.9U CN202020644527U CN212640072U CN 212640072 U CN212640072 U CN 212640072U CN 202020644527 U CN202020644527 U CN 202020644527U CN 212640072 U CN212640072 U CN 212640072U
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Abstract
The utility model discloses an acrylamide sewage treatment plant relates to the sewage treatment plant field, include: the adjusting tank is used for adjusting the pH value of the sewage and is communicated with the sewage; the ABR anaerobic tank is used for removing COD in the sewage and communicated with the regulating tank; the first-stage A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and is communicated with the ABR anaerobic tank; the second-level A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and is communicated with the first-level A/O biochemical reaction tank; and the secondary sedimentation tank is communicated with the ABR anaerobic tank and the primary A/O biochemical reaction tank, so that the sludge separated by the secondary sedimentation tank flows back to the ABR anaerobic tank and the primary A/O biochemical reaction tank. The acrylamide sewage treatment device has low sludge yield.
Description
Technical Field
The utility model relates to the field of sewage treatment devices, in particular to an acrylamide sewage treatment device.
Background
Acrylamide (AM) is an important organic chemical raw material, and is mainly used for synthesis of polyacrylamide, and modification of synthetic fibers, rubber, textiles, auxiliaries, medicines, pesticides, dyes, coating polymers and the like. Polyacrylamide (PAM) is a water-soluble high-molecular polymer of AM, has many valuable properties such as flocculation, thickening, resistance reduction, adhesion, surface activity, and the like, and is widely used in water treatment, secondary oil recovery, paper making, mineral separation, textile, sugar production, food, soil improvement, and the production of super absorbent resin, and the like.
Sewage is produced in the process of producing Acrylamide (AM), mainly sewage of various workshops in an acrylamide production project, wherein most of the sewage is from ion exchange sewage, namely acid-base regeneration sewage and fermentation sewage, the components of the sewage mainly comprise inorganic salt, starch protein, microbial thalli and the like, and the COD (chemical oxygen demand) and ammonia nitrogen concentration of the sewage are high.
In order to discharge the sewage up to the standard, the sewage is treated by a Fenton device (the sewage is treated by a Fenton process) in the traditional method, but ferrous sulfate, hydrogen peroxide and alkali are required to be added when the device is used for treating the sewage, so that a large amount of materialized sludge is easily generated. Therefore, the problem to be solved by the technical personnel in the field is to provide an acrylamide sewage treatment device with low materialized sludge yield.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the novel acrylamide sewage treatment device with low physicochemical sludge yield is provided.
In order to achieve the purpose, the novel structure provides the following scheme:
the utility model provides an acrylamide sewage treatment plant, include: the adjusting tank is used for adjusting the pH value of the sewage and communicated with the sewage; the ABR anaerobic tank is used for removing COD in the sewage and communicated with the regulating tank, so that the sewage treated by the regulating tank flows into the ABR anaerobic tank; the primary A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and communicated with the ABR anaerobic tank so that the sewage treated by the ABR anaerobic tank flows into the primary A/O biochemical reaction tank; the second-level A/O biochemical reaction tank is used for removing the ammonia nitrogen and the COD in the sewage and communicated with the first-level A/O biochemical reaction tank so that the sewage treated by the first-level A/O biochemical reaction tank flows into the second-level A/O biochemical reaction tank; and the secondary sedimentation tank is communicated with the secondary A/O biochemical reaction tank so that the sewage treated by the secondary A/O biochemical reaction tank flows into the secondary sedimentation tank, and the secondary sedimentation tank is communicated with the ABR anaerobic tank and the primary A/O biochemical reaction tank so that the sludge separated by the secondary sedimentation tank flows back to the ABR anaerobic tank and the primary A/O biochemical reaction tank.
Preferably, the acrylamide sewage treatment device further comprises a first return passage, wherein both ends of the first return passage are communicated with the ABR anaerobic tank, and the first return passage is used for returning sludge in the ABR anaerobic tank.
Preferably, the acrylamide sewage treatment device further comprises a second backflow passage, two ends of the second backflow passage are communicated with the first-stage A/O biochemical reaction tank, and the second backflow passage is used for enabling mixed liquid in the first-stage A/O biochemical reaction tank to flow back.
Preferably, the acrylamide sewage treatment device further comprises a third backflow passage, two ends of the third backflow passage are both communicated with the second-level A/O biochemical reaction tank, and the third backflow passage is used for enabling mixed liquid in the second-level A/O biochemical reaction tank to flow back.
Preferably, the acrylamide sewage treatment device further comprises a fourth return passage, one end of the fourth return passage is communicated with the secondary sedimentation tank, the other end of the fourth return passage is communicated with a first branch passage and a second branch passage, and the first branch passage and the second branch passage are respectively communicated with the ABR anaerobic tank and the primary A/O biochemical reaction tank, so that sludge separated from the secondary sedimentation tank flows back to the ABR anaerobic tank and the primary A/O biochemical reaction tank.
Preferably, the first-stage A/O biochemical reaction tank comprises a first-stage A tank and a first-stage O tank, the second-stage A/O biochemical reaction tank comprises a second-stage A tank and a second-stage O tank, and the ABR anaerobic tank, the first-stage A tank, the first-stage O tank, the second-stage A tank, the second-stage O tank and the second sedimentation tank are communicated in sequence.
Preferably, a steam generating device and liquid caustic soda are arranged in the regulating tank.
Preferably, the acrylamide sewage treatment device further comprises a lifting pump and a reflux pump, the adjusting tank is communicated with the ABR anaerobic tank through the lifting pump, and the secondary sedimentation tank is communicated with the ABR anaerobic tank and the primary A/O biochemical reaction tank through the reflux pump.
This is novel for prior art has obtained following technological effect:
the utility model provides an acrylamide sewage treatment plant includes: the adjusting tank is used for adjusting the pH value of the sewage and is communicated with the sewage; the ABR anaerobic tank is used for removing COD in the sewage and communicated with the regulating tank so that the sewage treated by the regulating tank flows into the ABR anaerobic tank; the first-stage A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and communicated with the ABR anaerobic tank so that the sewage treated by the ABR anaerobic tank flows into the first-stage A/O biochemical reaction tank; the second-level A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and communicated with the first-level A/O biochemical reaction tank so that the sewage treated by the first-level A/O biochemical reaction tank flows into the second-level A/O biochemical reaction tank; and the secondary sedimentation tank is communicated with the ABR anaerobic tank and the primary A/O biochemical reaction tank, so that the sludge separated by the secondary sedimentation tank flows back to the ABR anaerobic tank and the primary A/O biochemical reaction tank.
In the specific use process, the ABR anaerobic tank utilizes an anaerobic ABR technology to treat sewage, the primary A/O biochemical reaction tank and the secondary A/O biochemical reaction tank utilize a primary A-O + secondary A-O technology to treat the sewage, and compared with the prior art that the sewage is treated by a Fenton process, the anaerobic ABR technology + primary A-O + secondary A-O technology process route does not produce biochemical sludge, and the produced biochemical sludge flows back to the ABR anaerobic tank to be subjected to anaerobic digestion, so that the yield of the physicochemical sludge is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an acrylamide sewage treatment device provided in the present novel embodiment.
Description of reference numerals: 1. a regulating tank; 2. an ABR anaerobic tank; 3. a secondary sedimentation tank; 4. a first return path; 5. a second return path; 6. a third return path; 7. a fourth return path; 8. a first branch path; 9. a second branch path; 10. a first-stage A pool; 11. a first-level O pool; 12. a second-level A pool; 13. And a secondary O pool.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide an acrylamide sewage treatment device with low physicochemical sludge yield.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, a more detailed description of the present invention is provided below with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the present embodiment provides an acrylamide sewage treatment apparatus, including: the device comprises a regulating reservoir 1 for regulating the pH value of the sewage, wherein the regulating reservoir 1 is communicated with the sewage, specifically, a sewage pipe is arranged and communicated with the regulating reservoir 1, and the sewage flows into the regulating reservoir 1 through the sewage pipe; an ABR anaerobic tank 2 for removing COD in the sewage, wherein the ABR anaerobic tank 2 is communicated with the regulating tank 1, so that the sewage treated by the regulating tank 1 flows into the ABR anaerobic tank 2; the primary A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and communicated with the ABR anaerobic tank 2 so that the sewage treated by the ABR anaerobic tank 2 flows into the primary A/O biochemical reaction tank; the second-level A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and communicated with the first-level A/O biochemical reaction tank so that the sewage treated by the first-level A/O biochemical reaction tank flows into the second-level A/O biochemical reaction tank; and the secondary sedimentation tank 3 is used for separating mud and water, the secondary sedimentation tank 3 is communicated with the secondary A/O biochemical reaction tank so that sewage treated by the secondary A/O biochemical reaction tank flows into the secondary sedimentation tank 3, and the secondary sedimentation tank 3 is communicated with the ABR anaerobic tank 2 and the primary A/O biochemical reaction tank so that sludge separated by the secondary sedimentation tank 3 flows back to the ABR anaerobic tank 2 and the primary A/O biochemical reaction tank. The acrylamide sewage treatment device adopts a process route mainly comprising an anaerobic ABR technology, a primary A-O technology and a secondary A-O technology, no biochemical sludge is generated, and the generated biochemical sludge flows back to the ABR anaerobic tank 2 for anaerobic digestion, so that the yield of the physicochemical sludge is effectively reduced.
In this embodiment, the acrylamide sewage treatment device further includes a first return passage 4, two ends of the first return passage 4 are both communicated with the ABR anaerobic tank 2, and the first return passage 4 is used for returning sludge in the ABR anaerobic tank 2. Specifically, the reflux of the ABR anaerobic pool sludge is 100%. So set up, ensured the interior sludge activity of ABR anaerobism pond 2.
In this embodiment, in order to improve the ammonia nitrogen treatment effect of the primary a/O biochemical reaction tank, the acrylamide sewage treatment device further includes a second backflow passage 5, two ends of the second backflow passage 5 are both communicated with the primary a/O biochemical reaction tank, and the second backflow passage 5 is used for refluxing the mixed liquid in the primary a/O biochemical reaction tank.
In this embodiment, in order to improve the ammonia nitrogen treatment effect of the secondary a/O biochemical reaction tank, the acrylamide sewage treatment device further includes a third backflow passage 6, two ends of the third backflow passage 6 are both communicated with the secondary a/O biochemical reaction tank, and the third backflow passage 6 is used for refluxing the mixed liquid in the secondary a/O biochemical reaction tank.
In this embodiment, the acrylamide sewage treatment device further includes a fourth backflow passage 7, one end of the fourth backflow passage 7 is communicated with the secondary sedimentation tank 3, the other end of the fourth backflow passage is communicated with a first branch passage 8 and a second branch passage 9, and the first branch passage 8 and the second branch passage 9 are respectively communicated with the ABR anaerobic tank 2 and the primary a/O biochemical reaction tank, so that the sludge separated by the secondary sedimentation tank 3 flows back to the ABR anaerobic tank 2 and the primary a/O biochemical reaction tank. And the sludge flows back to the primary A/O biochemical reaction tank so as to ensure that the sludge concentration of the primary A/O biochemical reaction tank is always in a certain range. The sludge flows back to the ABR anaerobic tank 2 for anaerobic consumption, so that the sludge yield is reduced.
In this embodiment, the first-order a/O biochemical reaction tank includes first-order a pond 10 and first-order O pond 11, the second-order a/O biochemical reaction tank includes second-order a pond 12 and second-order O pond 13, ABR anaerobism pond 2, first-order a pond 10, first-order O pond 11, second-order a pond 12, second-order O pond 13 and two heavy ponds 3 communicate in proper order, the both ends of second backflow route 5 are linked together with one end that first-order a pond 10 is close to ABR anaerobism pond 2 and one end that first-order O pond 11 is close to second-order a pond 12 respectively, the both ends of third backflow route 6 are linked together with one end that second-order a pond 12 is close to first-order O pond 11 and one end that second-order O pond 13 is close to two. Specifically, 400% of mixed liquid is set to flow back in the first-stage O tank 11, and 200% of mixed liquid is set to flow back in the second-stage O tank 13.
In this embodiment, a steam generating device and liquid caustic soda are disposed in the adjusting tank 1. The wastewater is generally acidic, and the liquid alkali neutralizes the acid in the wastewater to adjust the pH value of the wastewater. The steam generating means is provided for the purpose of adjusting (raising) the temperature of the conditioning tank 1 by steam to enhance the sewage treatment effect. The steam generating device belongs to the prior art, the detailed structure is not described any more, and any structure capable of generating steam can be used.
In this embodiment, the acrylamide sewage treatment device further comprises a lift pump and a reflux pump, the adjusting tank 1 is communicated with the ABR anaerobic tank 2 through the lift pump, and the secondary sedimentation tank 3 is communicated with the ABR anaerobic tank 2 and the primary A/O biochemical reaction tank through the reflux pump. The function of the lift pump is to drive the sewage to flow into the ABR anaerobic pool 2. The reflux pump is used for driving the sludge to reflux to the ABR anaerobic tank 2 and the first-stage A/O biochemical reaction tank. The reflux pump is provided in the fourth reflux passage 7.
In the specific treatment process:
the COD concentration of the sewage in the adjusting tank 1 is about 6000mg/L, the ammonia nitrogen concentration is about 600mg/L, the pH value of the sewage is adjusted by the adjusting tank 1 to be 7-8, then the sewage is lifted to the ABR anaerobic tank 2 by the lifting pump, after the ABR anaerobic tank 2 treats the sewage, the COD removal efficiency of the sewage reaches 60%, and the ammonia nitrogen basically does not change.
The primary A/O biochemical reaction tank has the capacity of treating COD and ammonia nitrogen, when sewage enters the primary A/O biochemical reaction tank, the COD concentration is 2400mg/L, the ammonia nitrogen is 600mg/L, after the sewage is treated by the primary A/O biochemical reaction tank, the COD concentration is 240mg/L, the ammonia nitrogen is 120mg/L, the COD removal rate is 90%, the ammonia nitrogen removal rate is 80%, and a carbon source is supplemented in the primary A tank 10 properly.
The secondary A/O biochemical reaction tank also has the capability of treating COD and ammonia nitrogen, when sewage enters the secondary A/O biochemical reaction tank, the COD concentration is 240mg/L, the ammonia nitrogen is 120mg/L, a carbon source is supplemented to enable the COD of inlet water to be about 800mg/L, the COD concentration of outlet water is 160mg/L, the ammonia nitrogen of inlet water is 120mg/L, the ammonia nitrogen of outlet water is 30mg/L, wherein the COD removal rate is 80%, and the ammonia nitrogen removal rate is 85%. The effluent of the second-stage O tank 13 automatically flows to the secondary sedimentation tank 3.
And (3) separating mud from water in the secondary sedimentation tank, specifically adopting a Fourdrical sedimentation tank with the surface load of 0.5m 3/(square meter x h), discharging the effluent of the secondary sedimentation tank 3 up to the standard, and refluxing the precipitated sludge to the ABR anaerobic tank 2 and the primary A tank 10 by a reflux pump.
It is to be noted that COD (chemical oxygen demand), which is the amount of oxidant consumed when a water sample is treated with a certain strong oxidant under a certain condition, is an index representing the amount of reducing substances in the water; the ABR anaerobic tank 2 belongs to the prior art, and the detailed structure is not described; the primary A tank 10 and the secondary A tank 12 are both anoxic tanks, the primary O tank 11 and the secondary O tank 13 are both aerobic tanks, and the anoxic tanks and the aerobic tanks belong to the prior art, and detailed structures are not repeated; the secondary sedimentation tank 3 belongs to the prior art, and the detailed structure is not described again.
The principle and the implementation of the present invention are explained by applying specific examples in the present specification, and the above description of the examples is only used to help understanding the method of the present invention and the core concept thereof; meanwhile, for a person skilled in the art, according to the present novel concept, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the present invention.
Claims (8)
1. An acrylamide sewage treatment device, which is characterized by comprising:
the adjusting tank is used for adjusting the pH value of the sewage and communicated with the sewage;
the ABR anaerobic tank is used for removing COD in the sewage and communicated with the regulating tank, so that the sewage treated by the regulating tank flows into the ABR anaerobic tank;
the primary A/O biochemical reaction tank is used for removing ammonia nitrogen and COD in the sewage and communicated with the ABR anaerobic tank so that the sewage treated by the ABR anaerobic tank flows into the primary A/O biochemical reaction tank;
the second-level A/O biochemical reaction tank is used for removing the ammonia nitrogen and the COD in the sewage and communicated with the first-level A/O biochemical reaction tank so that the sewage treated by the first-level A/O biochemical reaction tank flows into the second-level A/O biochemical reaction tank;
and the secondary sedimentation tank is communicated with the secondary A/O biochemical reaction tank so that the sewage treated by the secondary A/O biochemical reaction tank flows into the secondary sedimentation tank, and the secondary sedimentation tank is communicated with the ABR anaerobic tank and the primary A/O biochemical reaction tank so that the sludge separated by the secondary sedimentation tank flows back to the ABR anaerobic tank and the primary A/O biochemical reaction tank.
2. The acrylamide sewage treatment device as recited in claim 1 further comprising a first recirculation channel communicating with both ends of the ABR anaerobic tank, the first recirculation channel being used for recirculating sludge in the ABR anaerobic tank.
3. The acrylamide sewage treatment device according to claim 1, further comprising a second return passage, both ends of the second return passage being communicated with the primary A/O biochemical reaction tank, the second return passage being configured to return the mixed liquid in the primary A/O biochemical reaction tank.
4. The acrylamide sewage treatment device according to claim 1, further comprising a third backflow passage, both ends of the third backflow passage being communicated with the secondary A/O biochemical reaction tank, the third backflow passage being configured to backflow the mixed liquid in the secondary A/O biochemical reaction tank.
5. The acrylamide sewage treatment device according to claim 1, further comprising a fourth return passage, one end of which is communicated with the secondary sedimentation tank, and the other end of which is communicated with a first branch passage and a second branch passage, wherein the first branch passage and the second branch passage are respectively communicated with the ABR anaerobic tank and the primary a/O biochemical reaction tank, so that the sludge separated by the secondary sedimentation tank flows back to the ABR anaerobic tank and the primary a/O biochemical reaction tank.
6. The acrylamide sewage treatment device as recited in claim 1 wherein the primary A/O biochemical reaction tank comprises a primary A tank and a primary O tank, the secondary A/O biochemical reaction tank comprises a secondary A tank and a secondary O tank, and the ABR anaerobic tank, the primary A tank, the primary O tank, the secondary A tank, the secondary O tank and the secondary sedimentation tank are communicated in sequence.
7. The acrylamide sewage treatment device as claimed in claim 1, wherein a steam generator and liquid caustic soda are arranged in the regulating reservoir.
8. The acrylamide sewage treatment device as claimed in claim 1, further comprising a lift pump and a reflux pump, wherein the adjusting tank is communicated with the ABR anaerobic tank through the lift pump, and the secondary sedimentation tank is communicated with both the ABR anaerobic tank and the primary A/O biochemical reaction tank through the reflux pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020644527.9U CN212640072U (en) | 2020-04-24 | 2020-04-24 | Acrylamide sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020644527.9U CN212640072U (en) | 2020-04-24 | 2020-04-24 | Acrylamide sewage treatment device |
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| CN212640072U true CN212640072U (en) | 2021-03-02 |
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| CN202020644527.9U Active CN212640072U (en) | 2020-04-24 | 2020-04-24 | Acrylamide sewage treatment device |
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