CN111732270A - Zero-emission integrated culture tail water treatment device - Google Patents
Zero-emission integrated culture tail water treatment device Download PDFInfo
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- CN111732270A CN111732270A CN202010525884.8A CN202010525884A CN111732270A CN 111732270 A CN111732270 A CN 111732270A CN 202010525884 A CN202010525884 A CN 202010525884A CN 111732270 A CN111732270 A CN 111732270A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 230
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 123
- 239000010865 sewage Substances 0.000 claims abstract description 91
- 239000010802 sludge Substances 0.000 claims abstract description 90
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 66
- 238000001556 precipitation Methods 0.000 claims abstract description 31
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 61
- 239000001301 oxygen Substances 0.000 claims description 61
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 56
- 239000007788 liquid Substances 0.000 claims description 45
- 238000004062 sedimentation Methods 0.000 claims description 44
- 239000006228 supernatant Substances 0.000 claims description 33
- 238000006213 oxygenation reaction Methods 0.000 claims description 17
- 206010021143 Hypoxia Diseases 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 10
- 231100000719 pollutant Toxicity 0.000 abstract description 10
- 238000005842 biochemical reaction Methods 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 230000001706 oxygenating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- 238000009360 aquaculture Methods 0.000 description 11
- 244000144974 aquaculture Species 0.000 description 11
- 238000006392 deoxygenation reaction Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000036284 oxygen consumption Effects 0.000 description 7
- 239000013049 sediment Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009348 integrated aquaculture Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a zero-emission integrated culture tail water treatment device, wherein a water pump, a mechanical filtering device, an anoxic biochemical bin, a pure nitrogen deoxidizing device, a pure nitrogen source, an aerobic biochemical bin, a pure oxygen oxygenating device, a pure oxygen source, a sterilization and disinfection device, a control unit, an operation display unit, a precipitation bin, a sludge deep treatment bin and a filter press are arranged in a shell of the device, and a water inlet to be treated, a treated water outlet, a total sewage outlet and a sludge discharge outlet are formed in the shell of the device. The invention can meet the anoxic and aerobic conditions of biochemical reaction when a large amount of culture tail water is discharged, realize the discharge standard reaching requirement, can carry out advanced treatment on pollutants degraded by the biochemical reaction, realize almost zero discharge, greatly reduce environmental pollution, simultaneously reflect the running states or water quality monitoring data of all equipment in real time, can reset a control program at any time or directly manually control certain equipment, and has more intuitive monitoring and more convenient operation.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a zero-emission integrated culture tail water treatment device.
Background
At present, the phenomena of blue bath outbreak of large lakes in China, more and more common black and odorous riverways in cities and towns and the like reflect that the self-cleaning capacity of water bodies in public water areas is not enough to digest pollution caused by substandard water bodies discharged by agriculture or industrial production. A considerable part of the pollution in agricultural production is caused by the untreated discharge of aquaculture tail water.
The aquaculture tail water is water which is generated by aquaculture (including aquaculture ponds, factory workshops and the like) activities and is discharged into external public water areas and is not used for aquaculture. In the traditional aquaculture industry, the culture tail water is not treated generally and is directly discharged into rivers or lakes in a direct discharge mode. However, with the continuous increase of the current culture density and the continuous improvement of the protein content in the feed, the content of nitrogen and phosphorus in the culture tail water is also greatly improved. If the culture tail water is directly discharged without being treated, the water quality of public water areas is greatly influenced, and the environment is greatly polluted.
Therefore, the tail water of aquaculture industry is treated and discharged after reaching standards, and the latest discharge standard of pond culture tail water places is definitely specified. At present, a three-channel four-dam plus plant degradation method or a wetland method is generally adopted for treating the aquaculture tail water, and the two methods cannot provide a large amount of oxygen and a deoxidation environment in the links of oxygen consumption and anaerobism, so that the completeness of biochemical reaction is not facilitated, the treatment efficiency is low, the speed is slow, the treatment result is not controllable, and the requirement of rapid degradation of nitrogen and phosphorus in aquaculture which seriously exceeds the standard cannot be met.
In addition, some culture tail water treatment equipment is already available on the market, but most of the existing culture tail water treatment equipment has some problems:
1. before the biochemical treatment link, the solid pollutants in the water body cannot be separated, so that the effect of subsequent biochemical treatment is influenced;
2. in the anoxic biochemical treatment link, the required anoxic or anaerobic environment cannot be created;
3. in the aerobic biochemical treatment process, a large amount of oxygen required by the aerobic biochemical treatment process cannot be provided, so that the reaction is quicker and more complete.
4. The whole device occupies a large area, and the device is difficult to move after being installed.
5. Although the effluent of the treated culture tail water really meets the requirement of reaching the discharge standard, the sludge generated by filtration or precipitation in the treatment process is not deeply treated, and if the sludge is directly discharged, the environment is still polluted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a zero-emission integrated culture tail water treatment device, which is used for meeting the requirements of biochemical reaction of a large amount of culture tail water on aerobic and anaerobic conditions and realizing advanced treatment of sludge in the later period.
In order to solve the technical problems and achieve the technical effects, the invention is realized by the following technical scheme:
a zero-emission integrated culture tail water treatment device comprises a transportable device shell, wherein a water pump, a mechanical filtering device, an anoxic biochemical bin, a pure nitrogen deoxidation device, a pure nitrogen source, an aerobic biochemical bin, a pure oxygen oxygenation device, a pure oxygen source, a sterilization and disinfection device, a control unit, an operation display unit, a precipitation bin, a sludge advanced treatment bin and a filter press are arranged inside the device shell, and a water inlet to be treated, a treated water outlet, a total sewage outlet and a sludge discharge outlet are formed in the device shell;
the water inlet of the water pump is communicated with the inner side end of the water inlet to be treated, the water outlet of the water pump is communicated with the water inlet of the mechanical filtering device, the sewage outlet of the mechanical filtering device is communicated with the second sewage inlet of the sedimentation bin, and the clean water outlet of the mechanical filtering device is communicated with the water inlet of the anoxic biochemical bin;
the interior of the anoxic biochemical bin is provided with anoxic biochemical bin filler, a drain outlet of the anoxic biochemical bin is communicated with a first sewage inlet of a sedimentation bin of the sedimentation bin, the deoxygenation water outlet of the deoxygenation biochemical bin is communicated with the pure nitrogen deoxygenation device through a deoxygenation device water pump, the pure nitrogen source is communicated with the pure nitrogen deoxidizing device, a high-nitrogen water outlet of the pure nitrogen deoxidizing device is connected with a high-nitrogen water pipe, the high-nitrogen water pipe extends into the anoxic biochemical bin from top to bottom, and the pipe wall of the high-nitrogen water pipe extending into the anoxic biochemical bin is provided with a high-nitrogen water spray head, an anoxic biochemical bin dissolved oxygen temperature two-in-one sensor and an anoxic biochemical bin liquid level meter are arranged in the anoxic biochemical bin, the water outlet of the anoxic biochemical bin is communicated with the water inlet of the aerobic biochemical bin;
an aerobic biochemical bin filler is arranged in the aerobic biochemical bin, a drain outlet of the aerobic biochemical bin is communicated with a third sewage inlet of the sedimentation bin, an oxygen-increasing water outlet of the aerobic biochemical bin is communicated with the pure oxygen-increasing device through an oxygen-increasing device water pump, the pure oxygen source is communicated with the pure oxygen oxygenation device, a high oxygen water outlet of the pure oxygen oxygenation device is connected with a high oxygen water pipe, the high oxygen water pipe extends into the aerobic biochemical bin from top to bottom, and a high oxygen water spray head is arranged on the pipe wall of the high oxygen water pipe extending into the aerobic biochemical bin, an aerobic biochemical bin dissolved oxygen temperature two-in-one sensor and an aerobic biochemical bin liquid level meter are arranged in the aerobic biochemical bin, the water outlet of the aerobic biochemical bin is communicated with the inner side end of the treated water outlet through the sterilization and disinfection device;
a supernatant outlet of a sedimentation bin of the sedimentation bin is communicated with a first supernatant return port of an anoxic biochemical bin of the anoxic biochemical bin through a supernatant water pump of the sedimentation bin, a sedimentation bin liquid level meter is arranged in the sedimentation bin, and a sewage outlet of the sedimentation bin is communicated with a sewage inlet of a sludge advanced treatment bin of the sludge advanced treatment bin through a sludge pump of the sedimentation bin;
a sludge advanced treatment bin liquid level meter and a stirring paddle driven by a stirring paddle motor are arranged in the sludge advanced treatment bin, a supernatant liquid return port of the sludge advanced treatment bin is communicated with a second supernatant liquid return port of the anoxic biochemical bin through a supernatant liquid pump of the sludge advanced treatment bin, a sludge discharge port of the sludge advanced treatment bin is communicated with a sludge inlet of the filter press, a sewage outlet of the filter press is communicated with the inner side end of the total sewage discharge port, and a mud cake outlet of the filter press is communicated with the inner side end of the sludge discharge port;
the control unit is respectively electrically connected with the water pump, the mechanical filtering device, the deoxidizing device water pump, the anoxic biochemical bin liquid level meter, the oxygenation device water pump, the aerobic biochemical bin liquid level meter, the sterilization device, the anoxic biochemical bin dissolved oxygen temperature two-in-one sensor, the aerobic biochemical bin dissolved oxygen temperature two-in-one sensor, the sedimentation bin supernatant water pump, the sedimentation bin sludge pump, the sludge advanced treatment bin supernatant water pump, the sedimentation bin liquid level meter, the sludge advanced treatment bin liquid level meter, the stirring paddle motor and the filter press, used for sending control instructions and receiving operation parameters and water quality monitoring data, the operation display unit is electrically connected with the control unit, the system is used for setting the operating parameters of each electric device and displaying the operating state and water quality monitoring data of each electric device.
Furthermore, the device shell is a container or an integrated chassis, all devices can be concentrated in a space with the size of a transportable container, and can also be arranged in an indoor space after being arranged on a movable integrated chassis, and the whole set of devices can be freely moved according to needs.
Furthermore, the inlet of the water to be treated, the treated water outlet, the total sewage draining outlet and the sludge draining outlet are all positioned at the same side of the device shell, so that the whole device can be mounted and used conveniently.
Further, thanks to the device housing, which can be moved and easily installed, the apparatus can be used by stacking a plurality of systems according to the amount of throughput.
Furthermore, the control unit is a controller with a PLC as a core so as to realize automatic control and emergency manual control of the equipment.
Furthermore, the operation display unit is a set of operation panel and display panel which are simultaneously electrically connected with the control unit.
Furthermore, the operation display unit is at least one touch display which is electrically connected with the control unit and has a good man-machine interaction interface.
Furthermore, an anoxic biochemical bin blowdown control valve is arranged on a pipeline between an anoxic biochemical bin sewage discharge outlet of the anoxic biochemical bin and a first sewage inlet of a precipitation bin of the precipitation bin, and the control unit is electrically connected with the anoxic biochemical bin blowdown control valve to control the opening degree of the control unit.
Furthermore, a nitrogen control valve is arranged on a pipeline between the pure nitrogen source and the pure nitrogen deoxidation device, and the control unit is electrically connected with the nitrogen control valve and controls the opening degree of the control unit.
Furthermore, an aerobic biochemical bin sewage discharge control valve is arranged on a pipeline between an aerobic biochemical bin sewage discharge outlet of the aerobic biochemical bin and a third sewage inlet of a sedimentation bin of the sedimentation bin, and the control unit is electrically connected with the aerobic biochemical bin sewage discharge control valve to control the opening degree of the control unit.
Furthermore, an oxygen control valve is arranged on a pipeline between the pure oxygen source and the pure oxygen oxygenation device, and the control unit is electrically connected with the oxygen control valve and controls the opening degree of the control unit.
Further, a sediment bin blowdown control valve is arranged on a pipeline between a sediment bin drain outlet of the sediment bin and the sediment bin sludge pump, and the control unit is electrically connected with the sediment bin blowdown control valve to control the opening degree of the control unit.
Furthermore, a sludge advanced treatment bin blowdown control valve is arranged on a pipeline between a sludge advanced treatment bin blowdown port of the sludge advanced treatment bin and a sludge inlet of the filter press, and the control unit is electrically connected with the sludge advanced treatment bin blowdown control valve to control the opening degree of the sludge advanced treatment bin blowdown control valve.
The invention has the beneficial effects that:
1. before the biochemical treatment link, the mechanical filtering device is arranged, so that most of solid pollutants in the culture tail water can be separated, the burden of subsequent biochemical treatment is greatly reduced, and the biochemical treatment effect is greatly improved.
2. In the anoxic biochemical treatment link, the high-efficiency pure nitrogen automatic deoxidation device mainly comprising the pure nitrogen deoxidation device is arranged, and the generated high-nitrogen water can quickly form an anoxic or anoxic environment in the anoxic biochemical treatment bin after being injected into the anoxic biochemical bin, so that the anoxic and anoxic environments required in the anoxic biochemical treatment process are provided for the culture tail water, and the more sufficient deoxidation reaction of the culture tail water in the biochemical treatment process is ensured.
3. In the aerobic biochemical treatment link, the high-efficiency pure oxygen automatic oxygenation device mainly comprising the pure oxygen oxygenation device is arranged, the generated high-oxygen water can supplement a large amount of oxygen to the interior of the aerobic biochemical treatment bin after being injected into the aerobic biochemical treatment bin, and a large amount of oxygen consumption required in the aerobic biochemical treatment process is provided for the aquaculture tail water, so that the oxygen consumption reaction of the aquaculture tail water in the biochemical treatment process is ensured to be quicker and more complete, and the treatment effect is greatly improved.
4. The invention arranges a precipitation bin, a sludge advanced treatment bin and a filter press at the rear end of the biochemical reaction, the pollutants degraded by the biochemical reaction are continuously advanced treated, the sludge obtained after the advanced treatment is filter-pressed into sludge cakes to be discharged, and the extremely small amount of wastewater obtained after the advanced treatment is discharged through a total sewage outlet, thereby almost realizing zero discharge and greatly reducing the pollution to the surrounding environment.
5. All the equipment of the invention is arranged in a transportable container or on a movable integrated underframe, the whole device has compact structure, small floor area, convenient installation and transportation, and can be used by superposing a plurality of systems according to the treatment capacity.
6. According to the invention, the control display unit with a good human-computer interface is adopted, so that the biochemical reaction requirement when a large amount of culture tail water is discharged can be met, the discharge standard reaching requirement is realized, advanced treatment is carried out on pollutants degraded by biochemical reaction, almost zero emission is realized, the running states or water quality monitoring data of all equipment can be reflected in real time, a control program can be reset at any time or a certain equipment can be directly and manually controlled, the monitoring is more visual, and the operation is more convenient and faster.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of the zero-emission integrated aquaculture tail water treatment device.
Wherein the reference numbers indicate: 1. a water inlet to be treated; 2. a water pump; 3. a mechanical filtration device; 4. a sewage outlet of the mechanical filtering device; 5. a clear water outlet of the mechanical filtering device; 6. a water inlet of the anoxic biochemical bin; 7. an anoxic biochemical bin; 8. anaerobic biochemical bin packing; 9. a dissolved oxygen temperature two-in-one sensor of the anoxic biochemical bin; 10. an anoxic biochemical bin liquid level meter; 11. a sewage outlet of the anoxic biochemical bin; 12. a sewage discharge control valve of the anoxic biochemical bin; 13. a water outlet of the anoxic biochemical bin; 14. a deoxygenation water outlet of the anoxic biochemical bin; 15. a deoxidizing device water pump; 16. a source of pure nitrogen; 17. a nitrogen control valve; 18. a pure nitrogen deoxygenation device; 19. a high nitrogen water outlet; 20. a high nitrogen water pipe; 21. a high nitrogen water spray; 22. an aerobic biochemical bin water inlet; 23. an aerobic biochemical bin; 24. filling an aerobic biochemical bin; 25. a dissolved oxygen temperature two-in-one sensor of an aerobic biochemical bin; 26. an aerobic biochemical bin liquid level meter; 27. a sewage outlet of the aerobic biochemical bin; 28. a blowdown control valve of the aerobic biochemical bin; 29. a water outlet of the aerobic biochemical bin; 30. an aerobic biochemical bin oxygenation water outlet; 31. an oxygenation device water pump; 32. a source of pure oxygen; 33. an oxygen control valve; 34. a pure oxygen oxygenation device; 35. a high-oxygen water outlet; 36. a high oxygen water pipe; 37. a high oxygen water spray head; 38. a sterilization and disinfection device; 39. a water outlet is formed after treatment; 40. a total sewage draining outlet; 41. a control unit; 42. an operation display unit; 43. a settling bin; 44. a first sewage inlet of the settling bin; 45. a second sewage inlet of the settling bin; 46. a sedimentation tank level gauge; 47. a supernatant outlet of the settling bin; 48. a supernatant water pump of the precipitation bin; 49. a first supernatant liquid reflux port of the anoxic biochemical cabin; 50. a third sewage inlet of the settling bin; 51. a sewage discharge outlet of the settling bin; 52. a sedimentation bin blowdown control valve; 53. a sludge pump of the settling bin; 54. a sludge advanced treatment bin; 55. a sewage inlet of the sludge advanced treatment bin; 56. a supernatant liquid return port of the sludge advanced treatment bin; 57. a supernatant water pump of the sludge advanced treatment bin; 58. a second supernatant liquid reflux port of the anoxic biochemical cabin; 59. a liquid level meter of the sludge advanced treatment bin; 60. a stirring paddle motor; 61. a stirring paddle; 62. a sewage outlet of the sludge advanced treatment bin; 63. a sewage discharge control valve of the sludge advanced treatment bin; 64. a filter press; 65. a sludge discharge port; 66. a device housing.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. The description set forth herein is intended to provide a further understanding of the invention and forms a part of this application and is intended to be an exemplification of the invention and is not intended to limit the invention to the particular embodiments illustrated.
Referring to fig. 1, a zero-emission integrated aquaculture tail water treatment device comprises a transportable device housing 66, a water pump 2, a mechanical filtering device 3, an anoxic biochemical bin 7, a pure nitrogen deoxidation device 18, a pure nitrogen source 16, an aerobic biochemical bin 23, a pure oxygen oxygenation device 34, a pure oxygen source 32, a sterilization device 38, a control unit 41, an operation display unit 42, a precipitation bin 43, a sludge deep treatment bin 54 and a filter press 64 are arranged inside the device housing 66, a to-be-treated water inlet 1, a treated water outlet 39, a total sewage outlet 40 and a sludge discharge outlet 65 are arranged on the device housing 66, and the to-be-treated water inlet 1, the treated water outlet 39, the total sewage outlet 40 and the sludge discharge outlet 65 are all located on the same side of the device housing 66 so as to facilitate installation and use of the whole device.
The water inlet of the water pump 2 is communicated with the inner side end of the water inlet 1 to be treated, the water outlet of the water pump 2 is communicated with the water inlet of the mechanical filtering device 3, the mechanical filtering device sewage outlet 4 of the mechanical filtering device 3 is communicated with the second sewage inlet 45 of the precipitation bin 43, and the mechanical filtering device clean water outlet 5 of the mechanical filtering device 3 is communicated with the anoxic biochemical bin water inlet 6 of the anoxic biochemical bin 7.
The inside of the oxygen-poor biochemical bin 7 is provided with an oxygen-poor biochemical bin filler 8, the oxygen-poor biochemical bin sewage discharge outlet 11 of the oxygen-poor biochemical bin 7 is communicated with the first sewage inlet 44 of the precipitation bin 43 through an oxygen-poor biochemical bin sewage discharge control valve 12, the oxygen-poor biochemical bin deoxygenation water outlet 14 of the oxygen-poor biochemical bin 7 is communicated with the pure nitrogen deoxygenation device 18 through a deoxygenation device water pump 15, a pure nitrogen source 16 is communicated with the pure nitrogen deoxygenation device 18 through a nitrogen control valve 17, a high nitrogen water outlet 19 of the pure nitrogen deoxygenation device 18 is connected with a high nitrogen water pipe 20, the high nitrogen water pipe 20 extends into the oxygen-poor biochemical bin 7 from top to bottom, a high nitrogen water spray head 21 is arranged on the pipe wall of the high nitrogen water pipe 20 extending into the oxygen-poor biochemical bin 7, an oxygen-dissolved temperature two-in-one sensor 9 and an oxygen-poor biochemical liquid level meter 10, the water outlet 13 of the anoxic biochemical bin 7 is communicated with the water inlet 22 of the aerobic biochemical bin 23.
An aerobic biochemical bin filler 24 is arranged in the aerobic biochemical bin 23, a drain outlet 27 of the aerobic biochemical bin 23 is communicated with a third sewage inlet 50 of the sedimentation bin 43 through a drain control valve 28 of the aerobic biochemical bin, an oxygen increasing water outlet 30 of the aerobic biochemical bin 23 is communicated with the pure oxygen increasing device 34 through an oxygen increasing device water pump 31, the pure oxygen source 32 is communicated with the pure oxygen increasing device 34 through an oxygen control valve 33, a high oxygen water outlet 35 of the pure oxygen increasing device 34 is connected with a high oxygen water pipe 36, the high oxygen water pipe 36 extends into the aerobic biochemical bin 23 from top to bottom, a high oxygen water spray nozzle 37 is arranged on the pipe wall of the high oxygen water pipe 36 extending into the aerobic biochemical bin 23, an aerobic biochemical bin dissolved oxygen temperature two-in-one sensor 25 and an aerobic bin biochemical liquid level meter 26 are arranged in the aerobic biochemical bin 23, the water outlet 29 of the aerobic biochemical bin 23 is communicated with the inner side end of the treated water outlet 39 through the sterilization and disinfection device 38.
The first supernatant fluid backward flow mouth 49 intercommunication in the biochemical storehouse of oxygen deficiency storehouse 49 in the biochemical storehouse of oxygen deficiency of deposit storehouse 43, be provided with in the storehouse 43 and deposit storehouse level gauge 46, the deposit storehouse drain 51 of depositing the storehouse 43 through depositing storehouse blowdown control valve 52, deposit storehouse sludge pump 53 with the mud advanced treatment storehouse sewage entry 55 intercommunication in the mud advanced treatment storehouse 54.
Be provided with mud advanced treatment storehouse level gauge 59 in the mud advanced treatment storehouse 54 and by stirring rake motor 60 driven 61, mud advanced treatment storehouse supernatant backward flow 56 of mud advanced treatment storehouse 54 through mud advanced treatment storehouse supernatant water pump 57 with the biochemical storehouse second supernatant backward flow 58 intercommunication in oxygen deficiency of oxygen deficiency 7, mud advanced treatment storehouse drain 62 of mud advanced treatment storehouse 54 through mud advanced treatment storehouse blowdown control valve 63 with the mud entry intercommunication of pressure filter 64, the sewage outlet of pressure filter 64 with the medial extremity intercommunication of total drain 40, the mud cake export of pressure filter 64 with the medial extremity intercommunication of mud discharging port 65.
The control unit 41 is a controller using a PLC as a core to realize automatic control and emergency manual control of the whole set of device, and the control unit 41 is respectively connected with the water pump 2, the mechanical filtering device 3, the deoxidizing device water pump 15, the anoxic biochemical bin liquid level meter 10, the oxygen increasing device water pump 31, the aerobic biochemical bin liquid level meter 26, the sterilizing device 38, the anoxic biochemical bin dissolved oxygen temperature two-in-one sensor 9, the aerobic biochemical bin dissolved oxygen temperature two-in-one sensor 25, the sedimentation bin supernatant water pump 48, the sedimentation bin sludge pump 53, the sludge advanced treatment bin supernatant water pump 57, the sedimentation bin liquid level meter 46, the sludge advanced treatment bin liquid level meter 59, the anoxic biochemical bin blowdown control valve 12, the nitrogen control valve 17, the aerobic biochemical bin blowdown control valve 28, the oxygen control valve 33, the nitrogen control valve 17, the aerobic biochemical bin blowdown control valve 28, the oxygen control valve 33, the oxygen control valve 26, the sedimentation bin sewage discharge control valve 52, the sludge advanced treatment bin sewage discharge control valve 63, the stirring paddle motor 60 and the filter press 64 are electrically connected and used for sending control instructions and receiving operation parameters and water quality monitoring data, so that the automatic operation of the whole device is realized.
The operation display unit 42 may be a set of operation panel and display panel electrically connected to the control unit 41, or at least one touch display electrically connected to the control unit 41 and having a good man-machine interface, and is configured to set operation parameters of each electrical device and display operation states and water quality monitoring data of each electrical device, so as to realize real-time viewing and control of the operation states of the whole set of apparatus.
The device housing 66 is a container or an integrated chassis, and all devices in the device housing 66 can be concentrated in a space with the size of a container, or can be arranged in an indoor space after being arranged on the integrated chassis, so that the whole device can be freely moved as required, and is convenient to carry and use, and the equipment can be used by stacking a plurality of systems according to the size of the treatment capacity.
The working process of the invention is as follows:
when the culture tail water is continuously discharged or discharged in a large flow, nitrogen and phosphorus exceed the standard. The breeding tail water is connected into a water inlet 1 to be treated of the device, the breeding tail water firstly flows into a mechanical filtering device 3 through a water pump 2, the mechanical filtering device 3 separates most of solid pollutants in the water body, and the burden of subsequent biochemical treatment is greatly reduced so as to improve the effect of biochemical treatment; after filtration, the mechanical filter device 3 flows the filtered solid pollutants into the precipitation bin 43 through the mechanical filter device sewage outlet 4 and the precipitation bin second sewage inlet 45 for centralized collection, and on the other hand, the filtered culture tail water is sent into the anoxic biochemical bin 7 through the mechanical filter device clean water outlet 5 and the anoxic biochemical bin water inlet 6 in sequence.
In the anoxic biochemical treatment link, the high-efficiency pure nitrogen automatic deoxidation device consists of a pure nitrogen source 16, a nitrogen control valve 17, a pure nitrogen deoxidation device 18, a high-nitrogen water pipe 20, a high-nitrogen water spray head 21 and a deoxidation device water pump 15, and after the generated high-nitrogen water is circularly injected into the anoxic biochemical bin 7, an anoxic or anaerobic environment can be quickly formed in the anoxic biochemical bin, so that the anoxic and anaerobic environments required in the anoxic biochemical treatment process are provided for the culture tail water, and the deoxidation reaction of the culture tail water in the biochemical treatment process is ensured to be more sufficient; after the deoxidation reaction, on one hand, the anoxic biochemical bin 7 flows the degraded pollutants into the precipitation bin 43 for centralized collection through the anoxic biochemical bin sewage discharge outlet 11, the anoxic biochemical bin sewage discharge control valve 12 and the precipitation bin first sewage inlet 44, and on the other hand, the culture tail water after the deoxidation reaction is sent into the aerobic biochemical bin 23 through the anoxic biochemical bin water outlet 13 and the aerobic biochemical bin water inlet 22 in sequence.
In the aerobic biochemical treatment link, the high-efficiency pure oxygen automatic oxygenation device consists of a pure oxygen source 32, an oxygen control valve 33, a pure oxygen oxygenation device 34, a high-oxygen water pipe 36, a high-oxygen water spray nozzle 37 and an oxygenation device water pump 31, and after the generated high-oxygen water is circularly injected into the aerobic biochemical bin 23, a large amount of oxygen can be rapidly supplemented into the aerobic biochemical bin, so that a large amount of oxygen consumption required in the biochemical treatment process is provided for the culture tail water, the oxygen consumption reaction of the culture tail water in the biochemical treatment process is ensured to be quicker and more complete, and the treatment effect is greatly improved; after the oxygen consumption reaction, on one hand, the aerobic biochemical bin 23 flows the degraded pollutants into the precipitation bin 43 through the sewage outlet 27 of the aerobic biochemical bin, the sewage control valve 28 of the aerobic biochemical bin and the third sewage inlet 50 of the precipitation bin for centralized collection, and on the other hand, the culture tail water after the oxygen consumption reaction is sent into the sterilization and disinfection device 38 through the water outlet 29 of the aerobic biochemical bin; the culture tail water after biochemical treatment is sterilized and disinfected and finally is discharged after reaching the standard through a treated water outlet 39 of the device.
The sedimentation bin 43 is used for precipitating the pollutants collected in a centralized manner, on one hand, the precipitated sludge is sent into the sludge advanced treatment bin 54 through the sedimentation bin sewage outlet 51, the sedimentation bin sewage control valve 52, the sedimentation bin sludge pump 53 and the sludge advanced treatment bin sewage inlet 55, and on the other hand, the clear water generated after the precipitation flows back to the anoxic biochemical bin 7 again through the sedimentation bin supernatant outlet 47, the sedimentation bin supernatant water pump 48 and the anoxic biochemical bin first supernatant return opening 49 for secondary biochemical treatment.
The sludge advanced treatment bin 54 carries out advanced treatment on the collected sludge through a stirring paddle 61 driven by a stirring paddle motor 60, on one hand, the sludge after the advanced treatment is sent into a filter press 64 through a sludge advanced treatment bin sewage outlet 62 and a sludge advanced treatment bin sewage control valve 63, and on the other hand, clear water obtained after the advanced treatment flows back to the anoxic biochemical bin 7 through a clear liquid return port 56 of the sludge advanced treatment bin, a clear liquid water pump 57 of the sludge advanced treatment bin and a second clear liquid return port 58 of the anoxic biochemical bin for secondary biochemical treatment.
The filter press 64 performs filter pressing on the sludge after the advanced treatment, on one hand, the formed sludge cake is discharged from the sludge discharge port 65, and on the other hand, the minimum amount of sewage after filter pressing is discharged from the total sewage discharge port 40, so that zero emission is almost achieved.
In the whole treatment process, a water pump 2, a mechanical filtering device 3, an anoxic biochemical bin sewage discharge control valve 12, a deoxidizing device water pump 15, a nitrogen control valve 17, an anoxic biochemical bin liquid level meter 10, an aerobic biochemical bin sewage discharge control valve 28, an oxygen increasing device water pump 31, an oxygen control valve 33, an aerobic biochemical bin liquid level meter 26, a sterilizing device 38, an anoxic biochemical bin dissolved oxygen temperature two-in-one sensor 9, an aerobic biochemical bin dissolved oxygen temperature two-in-one sensor 25, a settling bin supernatant water pump 48, a settling bin sludge pump 53, a sludge deep treatment bin supernatant water pump 57, a settling bin liquid level meter 46, a sludge deep treatment bin liquid level meter 59, a settling bin sewage discharge control valve 52, a sludge deep treatment bin sewage discharge control valve 63, a stirring paddle motor 60 and a filter press 64 of the device are controlled and coordinated by a control unit 41.
The anoxic biochemical bin liquid level meter 10, the aerobic biochemical bin liquid level meter 26, the sedimentation bin liquid level meter 46 and the sludge deep treatment bin liquid level meter 59 can also respectively feed liquid level parameters in the anoxic biochemical bin 7, the aerobic biochemical bin 23, the sedimentation bin 43 and the sludge deep treatment bin 54 back to the control unit 41, the anoxic biochemical bin dissolved oxygen temperature two-in-one sensor 9 and the aerobic biochemical bin dissolved oxygen temperature two-in-one sensor 25 can also respectively feed water quality data in the anoxic biochemical bin 7 and the aerobic biochemical bin 23 back to the control unit 41, and the control unit 41 can automatically control all electrical devices of the equipment according to a set existing program; the control unit 41 can also display the operating state and the water quality monitoring data of each electric device on the operation display unit 42, so as to realize the real-time observation of the operating state and the water quality monitoring data of the whole set of device, and meanwhile, the working personnel can also reset the operating program of the control unit 41 through the operation display unit 42 or directly and manually control a certain electric device, so as to realize the real-time control of the whole set of device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a tail water treatment facilities is bred in integration of zero release which characterized in that: the device comprises a transportable device shell (66), wherein a water pump (2), a mechanical filtering device (3), an anoxic biochemical bin (7), a pure nitrogen deoxidation device (18), a pure nitrogen source (16), an aerobic biochemical bin (23), a pure oxygen oxygenation device (34), a pure oxygen source (32), a sterilization and disinfection device (38), a control unit (41), an operation display unit (42), a precipitation bin (43), a sludge deep treatment bin (54) and a filter press (64) are arranged in the device shell (66), and a water inlet (1) to be treated, a treated water outlet (39), a total sewage outlet (40) and a sludge discharge outlet (65) are arranged on the device shell (66);
a water inlet of the water pump (2) is communicated with the inner side end of the water inlet (1) to be treated, a water outlet of the water pump (2) is communicated with a water inlet of the mechanical filtering device (3), a sewage outlet (4) of the mechanical filtering device (3) is communicated with a second sewage inlet (45) of a sedimentation bin of the sedimentation bin (43), and a clear water outlet (5) of the mechanical filtering device (3) is communicated with a water inlet (6) of an anoxic biochemical bin (7);
the inside in the biochemical storehouse of oxygen deficiency (7) is provided with the biochemical storehouse of oxygen deficiency filler (8), the biochemical storehouse drain outlet of oxygen deficiency (11) of the biochemical storehouse of oxygen deficiency (7) with the first sewage entry (44) intercommunication in the precipitation storehouse of precipitation storehouse (43), the biochemical storehouse of oxygen deficiency deoxidization delivery port of oxygen deficiency (14) through deoxidation device water pump (15) with pure nitrogen deoxidation device (18) intercommunication, pure nitrogen source (16) with pure nitrogen deoxidation device (18) intercommunication, high nitrogen water pipe (20) is connected to the high nitrogen water export (19) of pure nitrogen deoxidation device (18), high nitrogen water pipe (20) from top to bottom stretch into in the biochemical storehouse of oxygen deficiency (7), and stretch into the biochemical storehouse of oxygen deficiency (7) be provided with high nitrogen water shower nozzle (21) on the pipe wall of high nitrogen water pipe (20), be provided with two unification oxygen deficiency biochemical storehouse dissolved oxygen temperature sensor (9) and biochemical storehouse level gauge (10) in the biochemical storehouse of oxygen deficiency (7), an oxygen-poor biochemical bin water outlet (13) of the oxygen-poor biochemical bin (7) is communicated with an aerobic biochemical bin water inlet (22) of the aerobic biochemical bin (23);
the aerobic biochemical bin (23) is internally provided with an aerobic biochemical bin filler (24), an aerobic biochemical bin drain outlet (27) of the aerobic biochemical bin (23) is communicated with a third sewage inlet (50) of a precipitation bin of the precipitation bin (43), an aerobic biochemical bin oxygen increasing water outlet (30) of the aerobic biochemical bin (23) is communicated with a pure oxygen increasing device (34) through an oxygen increasing device water pump (31), a pure oxygen source (32) is communicated with the pure oxygen increasing device (34), a high oxygen water pipe (36) is connected with a high oxygen water outlet (35) of the pure oxygen increasing device (34), the high oxygen water pipe (36) extends into the aerobic biochemical bin (23) from top to bottom, and the high oxygen water nozzle (37) is arranged on the pipe wall of the high oxygen water pipe (36) of the aerobic biochemical bin (23), and an aerobic bin dissolved oxygen temperature two-level sensor (25) and an aerobic biochemical bin liquid level meter (26) are arranged in the aerobic biochemical bin (23), a water outlet (29) of the aerobic biochemical bin (23) is communicated with the inner side end of the treated water outlet (39) through the sterilization and disinfection device (38);
a supernatant outlet (47) of a precipitation bin of the precipitation bin (43) is communicated with a first supernatant return port (49) of an anoxic biochemical bin of the anoxic biochemical bin (7) through a supernatant water pump (48) of the precipitation bin, a precipitation bin liquid level meter (46) is arranged in the precipitation bin (43), and a sewage outlet (51) of the precipitation bin (43) is communicated with a sewage inlet (55) of a sludge advanced treatment bin of the sludge advanced treatment bin (54) through a sludge pump (53) of the precipitation bin;
a sludge advanced treatment bin liquid level meter (59) and a stirring paddle (61) driven by a stirring paddle motor (60) are arranged in the sludge advanced treatment bin (54), a supernatant liquid return port (56) of the sludge advanced treatment bin (54) is communicated with a second supernatant liquid return port (58) of an anoxic biochemical bin of the anoxic biochemical bin (7) through a sludge advanced treatment bin supernatant liquid water pump (57), a sludge advanced treatment bin sewage outlet (62) of the sludge advanced treatment bin (54) is communicated with a sludge inlet of the filter press (64), a sewage outlet of the filter press (64) is communicated with the inner side end of the main sewage outlet (40), and a mud cake outlet of the filter press (64) is communicated with the inner side end of the mud discharge port (65);
the control unit (41) is respectively electrically connected with the water pump (2), the mechanical filtering device (3), the deoxidizing device water pump (15), the anoxic biochemical bin liquid level meter (10), the oxygenation device water pump (31), the aerobic biochemical bin liquid level meter (26), the sterilization and disinfection device (38), the anoxic biochemical bin dissolved oxygen temperature two-in-one sensor (9), the aerobic biochemical bin dissolved oxygen temperature two-in-one sensor (25), the sedimentation bin supernatant water pump (48), the sedimentation bin sludge pump (53), the sludge advanced treatment bin supernatant water pump (57), the sedimentation bin liquid level meter (46), the sludge advanced treatment bin liquid level meter (59), the stirring paddle motor (60) and the filter press (64) and is used for sending control instructions and receiving operation parameters and water quality monitoring data, the operation display unit (42) is electrically connected with the control unit (41) and is used for setting the operation parameters of each electric device and displaying the operation state and the water quality monitoring data of each electric device.
2. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: the device shell (66) is a container or an integrated chassis, so that the whole device can move freely, and the inlet (1) of the water to be treated, the treated water outlet (39), the total sewage draining outlet (40) and the sludge draining outlet (65) are all positioned at the same side of the device shell (66), so that the whole device can be installed and used conveniently.
3. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: the control unit (41) is a controller taking a PLC as a core so as to realize automatic control and emergency manual control of equipment.
4. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: the operation display unit (42) is a set of operation panel and display panel which are simultaneously electrically connected with the control unit (41), or at least one touch display which is electrically connected with the control unit (41) and has a good man-machine interaction interface.
5. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: an anoxic biochemical bin sewage discharge control valve (12) is arranged on a pipeline between an anoxic biochemical bin sewage discharge outlet (11) of the anoxic biochemical bin (7) and a first sewage inlet (44) of a precipitation bin of the precipitation bin (43), and the control unit (41) is electrically connected with the anoxic biochemical bin sewage discharge control valve (12) to control the opening degree of the anoxic biochemical bin sewage discharge control valve.
6. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: and a nitrogen control valve (17) is arranged on a pipeline between the pure nitrogen source (16) and the pure nitrogen deoxidation device (18), and the control unit (41) is electrically connected with the nitrogen control valve (17) to control the opening degree of the control unit.
7. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: an aerobic biochemical bin sewage discharge control valve (28) is arranged on a pipeline between an aerobic biochemical bin sewage discharge outlet (27) of the aerobic biochemical bin (23) and a third sewage inlet (50) of a sedimentation bin of the sedimentation bin (43), and the control unit (41) is electrically connected with the aerobic biochemical bin sewage discharge control valve (28) to control the opening degree of the aerobic biochemical bin sewage discharge control valve.
8. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: an oxygen control valve (33) is arranged on a pipeline between the pure oxygen source (32) and the pure oxygen oxygenation device (34), and the control unit (41) is electrically connected with the oxygen control valve (33) and controls the opening degree of the oxygen control valve.
9. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: the sedimentation bin sewage discharge port (51) of the sedimentation bin (43) and a pipeline between the sedimentation bin sludge pumps (53) are provided with a sedimentation bin sewage discharge control valve (52), and the control unit (41) is electrically connected with the sedimentation bin sewage discharge control valve (52) to control the opening degree of the sedimentation bin sewage discharge control valve.
10. The zero-emission integrated culture tail water treatment device according to claim 1, characterized in that: the sewage draining device is characterized in that a sewage draining control valve (63) of the sludge advanced treatment bin is arranged on a pipeline between a sewage draining outlet (62) of the sludge advanced treatment bin (54) and a sludge inlet of the filter press (64), and the control unit (41) is electrically connected with the sewage draining control valve (63) of the sludge advanced treatment bin to control the opening degree of the sewage draining control valve.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445310A (en) * | 2008-12-22 | 2009-06-03 | 北京桑德环境工程有限公司 | Biological treatment system and method of phenolic wastewater |
| WO2012010096A1 (en) * | 2010-07-20 | 2012-01-26 | 华南理工大学 | Device for synchronously removing nitrogen and phosphorus in mixed municipal sewage and fecal sewage by using a2/o-biomembrane and method thereof |
| CN212315863U (en) * | 2020-06-10 | 2021-01-08 | 苏州益品德环境科技有限公司 | Zero-emission integrated culture tail water treatment device |
-
2020
- 2020-06-10 CN CN202010525884.8A patent/CN111732270A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445310A (en) * | 2008-12-22 | 2009-06-03 | 北京桑德环境工程有限公司 | Biological treatment system and method of phenolic wastewater |
| WO2012010096A1 (en) * | 2010-07-20 | 2012-01-26 | 华南理工大学 | Device for synchronously removing nitrogen and phosphorus in mixed municipal sewage and fecal sewage by using a2/o-biomembrane and method thereof |
| CN212315863U (en) * | 2020-06-10 | 2021-01-08 | 苏州益品德环境科技有限公司 | Zero-emission integrated culture tail water treatment device |
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