CN112479365A - Sewage treatment system and process based on carbon capture energy recovery and for denitrification - Google Patents
Sewage treatment system and process based on carbon capture energy recovery and for denitrification Download PDFInfo
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- CN112479365A CN112479365A CN202110071283.9A CN202110071283A CN112479365A CN 112479365 A CN112479365 A CN 112479365A CN 202110071283 A CN202110071283 A CN 202110071283A CN 112479365 A CN112479365 A CN 112479365A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2218—Weight of at least one component to be mixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/714—Feed mechanisms for feeding predetermined amounts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a sewage treatment system and a process based on carbon capture energy recovery and used for denitrification, which comprises an anaerobic tank, a top cover, a sewage inlet pipe, a first control valve, a dosing module, a sewage stirring module, an MBR (membrane bioreactor) membrane, a biogas collection module and a nitrification tank, wherein the anaerobic tank is internally provided with an anaerobic environment; the medicine adding module comprises a fixing groove, a medicine storage barrel, a medicine inlet pipe, a second control valve, a medicine discharging pipe, a third control valve, a weighing sensor and a medicine discharging auxiliary unit, wherein the medicine discharging pipe is arranged at the bottom of the medicine storage barrel and penetrates through the bottom of the fixing groove, the third control valve is arranged on the medicine discharging pipe, the weighing sensor is arranged on the fixing groove and is matched with the medicine storage barrel, and the medicine discharging auxiliary unit is arranged in the medicine storage barrel. The sewage treatment system and the process based on carbon capture energy recovery and denitrification can not only recover and purify the energy of the sewage, but also have higher purification efficiency and purification effect.
Description
Technical Field
The invention relates to the technical field of sewage treatment systems and processes, in particular to a sewage treatment system and process for recycling and denitrifying based on carbon capture energy.
Background
With the improvement of productivity level and living standard of people, people can generate a large amount of sewage in production and living. Because partial sewage contains very high organic matters, if the sewage is directly discharged, the sewage treatment system not only can cause environmental pollution, but also can cause waste of the organic matters in the sewage, so people can generally utilize the sewage treatment system and process to treat the sewage so as to achieve the purposes of purifying the sewage and fully utilizing a large amount of organic matters contained in the sewage.
The existing sewage treatment system and process based on carbon capture energy recovery and denitrification can treat sewage, but have the defects of low purification efficiency and poor purification effect.
Disclosure of Invention
In view of the above, the present invention provides a sewage treatment system and process based on carbon capture energy recovery and denitrification, which can not only recover and purify sewage, but also have high purification efficiency and purification effect.
In order to solve the technical problems, the invention adopts the technical scheme that: the sewage treatment system based on carbon capture energy recovery and used for denitrification comprises an anaerobic tank with an anaerobic environment inside, a top cover detachably arranged on the anaerobic tank, a sewage inlet pipe arranged on the top cover, a first control valve arranged on the sewage inlet pipe, a dosing module used for adding medicines into the anaerobic tank, a sewage stirring module used for stirring sewage, an MBR (membrane bioreactor) membrane detachably arranged in the anaerobic tank, a biogas collection module connected with the anaerobic tank, a nitrification tank which is connected with the anaerobic tank through a sludge extraction pipe and is in an aerobic environment, a seventh control valve arranged on the sludge extraction pipe and a sludge suction pump arranged on the sludge extraction pipe;
the medicine module is including setting up the fixed slot on the top cap diapire, placing the storage cartridge case that has the dephosphorization agent on the fixed slot, setting up the cartridge case top store up into pencil, setting up the second control valve on advancing the pencil, setting up in the cartridge case bottom and run through the pencil of giving medicine down of fixed slot bottom, setting up the third control valve on the pencil of giving medicine down, setting on the fixed slot and with the weighing sensor of storage cartridge case looks adaptation and the supplementary unit of giving medicine down of setting in the cartridge case.
Furthermore, the upper end of the inner side wall of the top cover is clamped with the outer side wall of the upper end of the anaerobic tank, a sealing gasket matched with the upper end of the inner side wall of the top cover is arranged on the outer side wall of the upper end of the anaerobic tank, a fixing screw used for fixing with the anaerobic tank is arranged at the lower end of the inner side wall of the top cover, a thread fixing hole matched with the fixing screw is arranged on the outer side wall of the upper end of the anaerobic tank, and the thread fixing hole is a blind hole; the anaerobic tank is characterized in that an installation frame used for fixing the side end of an MBR membrane is arranged on the inner side wall of the anaerobic tank, the MBR membrane is clamped with the installation frame, a connecting screw used for fixing the MBR membrane with the installation frame is arranged on the MBR membrane, and a threaded connecting hole matched with the connecting screw is formed in the installation frame.
Furthermore, the auxiliary unit of giving medicine to the lower part is including setting up the first motor on storage cartridge case top inner wall, the first (mixing) shaft that is connected with the output shaft of first motor and setting up the first stirring vane on first (mixing) shaft.
Further, the auxiliary unit of giving medicine to the poor free of charge still including set up on the lower extreme inner wall of storage cartridge case and with the play medicine guide fill of giving medicine to the poor free of charge looks adaptation, first stirring vane's shape and play medicine guide fill looks adaptation.
Furthermore, a top cover side end is arranged on the outer side wall of the left side end and the right side end of the upper portion of the anaerobic tank, a first electric telescopic rod is arranged on the side end of the top cover, and a fixing cylinder matched with the upper end of an output shaft of the first electric telescopic rod is arranged on the side end of the top cover.
Further, the sewage stirring module comprises a second electric telescopic rod vertically arranged on the bottom wall of the top cover, a second motor arranged at the lower end of an output shaft of the second electric telescopic rod, a second stirring shaft arranged on an output shaft of the second motor and a second stirring blade arranged on the second stirring shaft.
Further, biogas collection module includes the gas receiver, set up the air duct between anaerobic jar and gas receiver, set up aspiration pump on the air duct, set up fourth control valve on the air duct, set up first baroceptor on the top cap, set up second baroceptor in the gas receiver, set up the blast pipe on the gas receiver and set up the fifth control valve on the blast pipe, fourth control valve, fifth control valve are the check valve, fourth control valve, fifth control valve are the solenoid valve.
Further, still be provided with video monitor on the top cap inner wall, the bottom of anaerobic jar still is provided with the supporting leg, the bottom of anaerobic jar still is provided with the outlet pipe, still be provided with the sixth control valve on the outlet pipe, the lower extreme lateral part of anaerobic jar still is provided with transparent observation window.
Further, still be provided with the control box on the lower extreme lateral wall of anaerobic jar, be provided with microcontroller in the control box, still be provided with the touch-control display screen with microcontroller electric connection on the control box, microcontroller respectively with first control valve, mud suction pump, second control valve, third control valve, weighing sensor, first motor, first electric telescopic handle, second motor, aspiration pump, first baroceptor, second baroceptor, fourth control valve, fifth control valve, sixth control valve, video monitor and seventh control valve signal connection, microcontroller can be through touch-control display screen to first control valve, mud suction pump, second control valve, third control valve, weighing sensor, first motor, first electric telescopic handle, second motor, The air pump, the first air pressure sensor, the second air pressure sensor, the fourth control valve, the fifth control valve, the sixth control valve, the video monitor and the seventh control valve are used for monitoring, and a monitoring display area used for displaying a monitoring result of the video monitor is arranged on the touch display screen.
The sewage treatment process comprises the following steps;
s1, opening a first control valve, adding sewage into the anaerobic tank through the sewage inlet pipe, and then closing the first control valve;
s2, starting a first motor to drive a first stirring shaft and a first stirring blade to rotate so as to stir the medicine in the medicine storage cylinder, and opening a second control valve to enable the medicine in the medicine storage cylinder to leave from a medicine feeding pipe and fall into an anaerobic tank;
s3, a second motor is started to drive a second stirring shaft and a second stirring blade to rotate, so that a mixture of sewage and medicines above an MBR membrane in the anaerobic tank is stirred, meanwhile, the second stirring shaft and the second stirring blade can move up and down in the anaerobic tank through the extension and retraction of an output shaft of a second electric telescopic rod, the mixture of sewage and medicines above the MBR membrane in the anaerobic tank is more fully stirred, the mixture of sewage and medicines generates an anaerobic digestion reaction in the anaerobic tank, organic matters in the sewage are converted into biogas, phosphorus-containing substances in the sewage are removed by a phosphorus removal agent, so that the sewage is purified, the organic matters in the sewage are removed, water generated after the anaerobic digestion reaction passes through the MBR membrane and enters the lower part of the anaerobic tank, and large-particle sewage in the sewage is intercepted by the MBR membrane;
s4, opening a seventh control valve, starting a sludge suction pump, further pumping large-particle sewage retained on an MBR membrane out of an anaerobic tank, pumping the large-particle sewage into a nitrification tank, wherein the nitrification tank is an aerobic environment, nitrification reaction occurs after the sewage enters the nitrification tank, nitrite bacteria in the nitrification tank convert ammonia nitrogen in the sewage into nitrite nitrogen, the nitrifying bacteria convert the generated nitrite nitrogen into nitrate nitrogen, and ammonia nitrogen conversion is realized, so that denitrification treatment of the sewage is realized, and in the process of pumping the sludge in the anaerobic tank by using the sludge suction pump and a sludge pumping pipe, a second motor can be simultaneously started, and the sludge can be stirred by a second stirring shaft and a second stirring blade, so that the sludge can be pumped out of the anaerobic tank more quickly;
s6, monitoring the air pressure in the anaerobic tank through a first air pressure sensor, so as to obtain the amount of biogas generated by anaerobic digestion reaction in the anaerobic tank, opening a fourth control valve when the amount of biogas in the anaerobic tank is found to be large, starting an air pump, pumping the biogas generated by anaerobic digestion reaction in the anaerobic tank into an air storage cylinder until the first air pressure sensor finds that the air pressure in the anaerobic tank is recovered to be normal;
s7, when the second air pressure sensor finds that the biogas reaching the threshold value is collected in the air storage cylinder, the fifth control valve can be opened to discharge the biogas from the air storage cylinder, so that the biogas is utilized;
s8, when the flow of water filtered by the MBR membrane reaching the threshold value is collected in the anaerobic tank through the transparent observation window, the sixth control valve may be opened to discharge the flow of water from the anaerobic tank, and the flow of water may be used.
Compared with the prior art, the invention has the beneficial effects that: firstly, in the process of adding medicines into the anaerobic tank, the first stirring shaft and the first stirring blade can be driven to rotate by starting the first motor so as to stir the medicines in the medicine storage barrel, so that the medicines in the medicine storage barrel can more quickly and smoothly leave the medicine storage barrel; can also weigh storage cartridge case through weighing sensor, control the volume of adding the medicine according to the weight difference of storage cartridge case, then explain when the weight difference of storage cartridge case reaches the required volume of adding the medicine promptly that the medicine that has reached the threshold value has left storage cartridge case and can get into in the anaerobic jar, can realize the comparatively accurate control to the weight of adding the medicine promptly.
Secondly, when the sewage in medicine and the anaerobic jar takes place the reaction, can be through the mode that starts the second motor, drive the second (mixing) shaft, thereby the second stirring vane takes place to rotate and stirs the sewage that is arranged in MBR membrane top in the anaerobic jar and the mixture of medicine, can also make the second (mixing) shaft through the flexible of second electric telescopic handle's output shaft simultaneously, second stirring vane reciprocates in the anaerobic jar, carry out more abundant stirring to the sewage that is arranged in MBR membrane top in the anaerobic jar and the mixture of medicine, the anaerobic digestion reaction takes place for the mixture of sewage and medicine in the anaerobic jar.
Thirdly, the air pressure in the anaerobic tank can be monitored through the first air pressure sensor, so that the biogas in the anaerobic tank is discharged in time, and safety accidents are avoided; the air pressure in the air storage cylinder can be monitored through the second air pressure sensor, so that the biogas in the air storage cylinder is discharged in time, and safety accidents are avoided; the amount of the water flow collected from the anaerobic tank and filtered by the MBR membrane can be monitored through the transparent observation window, so that the water flow can be discharged in time; the condition in the anaerobic tank can be clearly and visually monitored by matching the touch display screen with the monitoring display area; through the cooperation of touch-control display screen, microcontroller, can conveniently monitor first control valve, mud suction pump, second control valve, third control valve, weighing sensor, first motor, first electric telescopic handle, second motor, aspiration pump, first baroceptor, second baroceptor, fourth control valve, fifth control valve, sixth control valve, video monitor and seventh control valve.
Fourth, after a period of use, can not hard up set screw earlier, make it and screw thread fixed hole separation, afterwards, make first electric telescopic handle's output shaft upwards shorten certain length, thereby make top cap and anaerobic jar separation, open the top cap promptly, make first electric telescopic handle's output shaft shorten certain length after that, make first (mixing) shaft, first stirring vane rebound and keep away from the MBR membrane, later just can make the output shaft of second electric telescopic handle upwards extend certain length, make top cap and anaerobic jar etc. do not deviate from, and rebound, thereby open the top cap, later just can conveniently loosen connecting screw, make it and screw thread connected hole separation, thereby conveniently wash the MBR membrane, operations such as change, thereby make the membrane can exert the purification filtering action to sewage better.
Drawings
Fig. 1 is a schematic front sectional view of the present invention.
In the figure: 1. an anaerobic jar; 2. a top cover; 3. a sewage inlet pipe; 4. a first control valve; 5. MBR membrane; 6. a sludge extraction pipe; 7. a nitrification tank; 8. fixing grooves; 9. a cartridge; 10. a medicine inlet pipe; 11. a second control valve; 12. a medicine feeding pipe; 13. a third control valve; 14. a weighing sensor; 15. a sealing gasket; 16. a set screw; 17. a threaded fixing hole; 18. a connecting screw; 19. connecting a threaded hole; 20. a first motor; 21. a first stirring shaft; 22. a first stirring blade; 23. a medicine discharging guide hopper; 24. a first electric telescopic rod; 25. a fixed cylinder; 26. a second electric telescopic rod; 27. a second motor; 28. a second stirring shaft; 29. a second stirring blade; 30. an air cylinder; 31. an air duct; 32. an air pump; 33. a fourth control valve; 34. a first air pressure sensor; 35. a second air pressure sensor; 36. an exhaust pipe; 37. a fifth control valve; 38. a video monitor; 39. supporting legs; 40. a water outlet pipe; 41. a sixth control valve; 42. a transparent viewing window; 43. a control box; 44. a microcontroller; 45. a touch display screen; 46. monitoring the display area; 47. a seventh control valve; 48. a sludge suction pump; 49. and (7) mounting frames.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the sewage treatment system based on carbon capture energy recovery and denitrification comprises an anaerobic tank 1 with an anaerobic environment inside, a top cover 2 detachably arranged on the anaerobic tank 1, a sewage inlet pipe 3 arranged on the top cover 2, a first control valve 4 arranged on the sewage inlet pipe 3, a dosing module for adding drugs into the anaerobic tank 1, a sewage stirring module for stirring sewage, an MBR membrane 5 detachably arranged in the anaerobic tank 1, a biogas collecting module connected with the anaerobic tank 1, a nitrification tank 7 which is connected with the anaerobic tank 1 through a sludge extraction pipe 6 and is in an aerobic environment, a seventh control valve 47 arranged on the sludge extraction pipe, and a sludge suction pump 48 arranged on the sludge extraction pipe 6;
the medicine module is including setting up fixed slot 8 on 2 diapalls of top cap, place the storage cartridge case 9 that has the dephosphorization agent on fixed slot 8, the medicine pipe 10 that advances of setting at storage cartridge case 9 top, the second control valve 11 of setting on advancing medicine pipe 10, the setting is in storage cartridge case 9 bottom and run through the lower pencil 12 of fixed slot 8 bottom, the third control valve 13 of setting on pencil 12 down, the setting is on fixed slot 8 and with the weighing sensor 14 of storage cartridge case 9 looks adaptation and the supplementary unit of giving medicine to the poor free of charge of setting in storage cartridge case 9.
The upper end of the inner side wall of the top cover 2 is clamped with the outer side wall of the upper end of the anaerobic tank 1, a sealing washer 15 matched with the upper end of the inner side wall of the top cover 2 is arranged on the outer side wall of the upper end of the anaerobic tank 1, a fixing screw 16 used for fixing with the anaerobic tank 1 is arranged at the lower end of the inner side wall of the top cover 2, a thread fixing hole 17 matched with the fixing screw 16 is arranged on the outer side wall of the upper end of the anaerobic tank 1, and the thread fixing hole 17 is a blind hole; the side of the inner side wall of the anaerobic tank 1 is provided with an installation frame 49 used for fixing the side end of an MBR membrane 5, the MBR membrane 5 is clamped with the installation frame 49, the MBR membrane 5 is provided with a connecting screw 18 used for fixing the MBR membrane with the installation frame 49, and the installation frame is provided with a threaded connecting hole 19 matched with the connecting screw.
The medicine feeding auxiliary unit comprises a first motor 20 arranged on the inner wall of the top of the medicine storage barrel 9, a first stirring shaft 21 connected with an output shaft of the first motor 20 and a first stirring blade 22 arranged on the first stirring shaft 21.
The auxiliary medicine feeding unit further comprises a medicine discharging guide hopper 23 which is arranged on the inner wall of the lower end of the medicine storage barrel 9 and matched with the medicine discharging pipe 12, and the shape of the first stirring blade 22 is matched with the medicine discharging guide hopper 23.
The outer side walls of the left side end and the right side end of the upper part of the anaerobic tank 1 are provided with a top cover 2, the side end of the top cover 2 is provided with a first electric telescopic rod 24, and the side end of the top cover 2 is provided with a fixed cylinder 25 matched with the upper end of an output shaft of the first electric telescopic rod 24.
The sewage stirring module comprises a second electric telescopic rod 26 vertically arranged on the bottom wall of the top cover 2, a second motor 27 arranged at the lower end of an output shaft of the second electric telescopic rod 26, a second stirring shaft 28 arranged on the output shaft of the second motor 27 and a second stirring blade 29 arranged on the second stirring shaft 28.
The biogas collection module comprises an air cylinder 30, an air guide pipe 31 arranged between the anaerobic tank 1 and the air cylinder 30, an air suction pump 32 arranged on the air guide pipe 31, a fourth control valve 33 arranged on the air guide pipe 31, a first air pressure sensor 34 arranged on the top cover 2, a second air pressure sensor 35 arranged in the air cylinder 30, an exhaust pipe 36 arranged on the air cylinder 30 and a fifth control valve 37 arranged on the exhaust pipe 36, wherein the fourth control valve 33 and the fifth control valve 37 are all one-way valves, and the fourth control valve 33 and the fifth control valve 37 are all electromagnetic valves.
The inner wall of the top cover 2 is further provided with a video monitor 38, the bottom of the anaerobic tank 1 is further provided with supporting legs 39, the bottom of the anaerobic tank 1 is further provided with a water outlet pipe 40, the water outlet pipe 40 is further provided with a sixth control valve 41, and the side part of the lower end of the anaerobic tank 1 is further provided with a transparent observation window 42.
A control box 43 is further arranged on the outer side wall of the lower end of the anaerobic tank 1, a microcontroller is arranged in the control box, a touch display screen 45 electrically connected with the microcontroller 44 is further arranged on the control box 43, the microcontroller 44 is respectively in signal connection with the first control valve 4, the sludge suction pump 48, the second control valve 11, the third control valve 13, the weighing sensor 14, the first motor 20, the first electric telescopic rod 24, the second electric telescopic rod 26, the second motor 27, the suction pump 32, the first air pressure sensor 34, the second air pressure sensor 35, the fourth control valve 33, the fifth control valve 37, the sixth control valve 41, the video monitor 38 and the seventh control valve 47, and the microcontroller 44 can be used for performing signal connection on the first control valve 4, the sludge suction pump 48, the second control valve 11, the third control valve 13, the weighing sensor 14, the second control valve 13, the weighing sensor 45 and the seventh control valve 47 through the touch display screen 45, The first motor 20, the first electric telescopic rod 24, the second electric telescopic rod 26, the second motor 27, the air suction pump 32, the first air pressure sensor 34, the second air pressure sensor 35, the fourth control valve 33, the fifth control valve 37, the sixth control valve 41, the video monitor 38 and the seventh control valve 47 are used for monitoring, and a monitoring display area 46 used for displaying a monitoring result of the video monitor 38 is arranged on the touch display screen 45.
The sewage treatment process comprises the following steps;
s1, opening the first control valve 4, adding sewage into the anaerobic tank 1 through the sewage inlet pipe 3, and then closing the first control valve 4;
s2, starting the first motor 20, driving the first stirring shaft 21 and the first stirring blade 22 to rotate so as to stir the medicine in the medicine storage tank 9, and opening the second control valve 11, so that the medicine in the medicine storage tank 9 leaves from the medicine discharge pipe 12 and falls into the anaerobic tank 1, during the process of adding the medicine, the medicine storage tank 9 can be weighed through the weighing sensor 14, the amount of the added medicine is controlled according to the weight difference of the medicine storage tank 9, namely when the weight difference of the medicine storage tank 9 reaches the amount of the required added medicine, the second control valve 11 can be immediately closed, and the first motor 20 is closed;
s3, the second motor 27 is started to drive the second stirring shaft 28 and the second stirring blade 29 to rotate so as to stir the mixture of the sewage and the medicine above the MBR membrane 5 in the anaerobic tank 1, meanwhile, the second stirring shaft 28 and the second stirring blade 29 can move up and down in the anaerobic tank 1 through the extension and contraction of the output shaft of the second electric telescopic rod 26, the mixture of the sewage and the medicine above the MBR membrane 5 in the anaerobic tank 1 is stirred more fully, the mixture of the sewage and the medicine generates anaerobic digestion reaction in the anaerobic tank 1, organic matters in the sewage are converted into biogas, so that phosphorus-containing substances in the sewage are removed by a phosphorus removing agent, thereby realizing the purification of the sewage and removing the organic matters in the sewage, the water generated after the anaerobic digestion reaction passes through the MBR membrane 5 and enters the lower part of the anaerobic tank 1, and the large-particle sewage in the sewage is intercepted by the MBR membrane 5;
s4, opening a seventh control valve 47, starting a sludge suction pump 48, further pumping large-particle sewage retained on an MBR membrane 5 out of the anaerobic tank 1, pumping the large-particle sewage into a nitrification tank 7, wherein the nitrification tank 7 is in an aerobic environment, the sewage enters the nitrification tank 7 and then undergoes nitrification reaction, nitrifying bacteria in the nitrification tank 7 convert ammonia nitrogen in the sewage into nitrite nitrogen, the nitrifying bacteria convert the generated nitrite nitrogen into nitrate nitrogen, and the conversion of ammonia nitrogen is realized, so that the denitrification treatment of the sewage is realized, and in the process of pumping the sludge in the anaerobic tank by using the sludge suction pump 48 and the sludge pumping pipe 6, the second motor 27 can be simultaneously started, and the sludge is stirred by the second stirring shaft 28 and the second stirring blades 29, so that the sludge can be pumped out from the anaerobic tank 1 more quickly;
s6, monitoring the pressure in the anaerobic tank 1 by the first pressure sensor 34, so as to obtain the amount of biogas generated by the anaerobic digestion reaction in the anaerobic tank 1, when the amount of biogas in the anaerobic tank 1 is found to be large, opening the fourth control valve 33, and starting the air pump 32 to pump the biogas generated by the anaerobic digestion reaction in the anaerobic tank 1 into the air receiver 30 until the pressure in the anaerobic tank 1 is found to be normal by the first pressure sensor 34;
s7, when the second air pressure sensor 35 detects that the biogas reaching the threshold value is collected in the air reservoir 30, the fifth control valve 37 may be opened to discharge the biogas from the air reservoir 30, so as to utilize the biogas;
s8, when the flow of water filtered by the MBR membrane 5 reaching the threshold value is collected in the anaerobic tank 1 through the transparent observation window 42, the sixth control valve 41 may be opened to discharge the flow of water from the anaerobic tank 1, and the flow of water may be used.
The microcontroller 44 can be a conventional 89C51 series single chip microcomputer, or a conventional AVR single chip microcomputer, and can be programmed by using the prior art to obtain the functions of the present application.
Specifically, in the process of adding the medicine into the anaerobic tank, the first stirring shaft and the first stirring blade can be driven to rotate by starting the first motor so as to stir the medicine in the medicine storage cylinder, so that the medicine in the medicine storage cylinder can more quickly and smoothly leave the medicine storage cylinder; can also weigh storage cartridge case through weighing sensor, control the volume of adding the medicine according to the weight difference of storage cartridge case, then explain when the weight difference of storage cartridge case reaches the required volume of adding the medicine promptly that the medicine that has reached the threshold value has left storage cartridge case and can get into in the anaerobic jar, can realize the comparatively accurate control to the weight of adding the medicine promptly.
When the sewage in medicine and the anaerobic tank takes place the reaction, can be through the mode that starts the second motor, thereby drive the second (mixing) shaft, thereby second stirring vane takes place to rotate and stirs the sewage that is located MBR membrane top in the anaerobic tank and the mixture of medicine, can also make the second (mixing) shaft through the flexible of second electric telescopic handle's output shaft simultaneously, second stirring vane reciprocates in the anaerobic tank, carry out more abundant stirring to the sewage that is located MBR membrane top in the anaerobic tank and the mixture of medicine, the anaerobic digestion reaction takes place for the mixture of sewage and medicine in the anaerobic tank.
The first air pressure sensor can monitor the air pressure in the anaerobic tank, so that the biogas in the anaerobic tank is discharged in time, and safety accidents are avoided; the air pressure in the air storage cylinder can be monitored through the second air pressure sensor, so that the biogas in the air storage cylinder is discharged in time, and safety accidents are avoided; the amount of the water flow collected from the anaerobic tank and filtered by the MBR membrane can be monitored through the transparent observation window, so that the water flow can be discharged in time; the condition in the anaerobic tank can be clearly and visually monitored by matching the touch display screen with the monitoring display area; through the cooperation of touch-control display screen, microcontroller, can conveniently monitor first control valve, mud pump, second control valve, third control valve, weighing sensor, first motor, first electric telescopic handle, second motor, aspiration pump, first baroceptor, second baroceptor, fourth control valve, fifth control valve, sixth control valve, video monitor and seventh control valve.
After a period of use, can not hard up set screw earlier, make it separate with the screw thread fixed orifices, afterwards, make first electric telescopic handle's output shaft upwards shorten certain length, thereby make top cap and anaerobic jar separation, open the top cap promptly, make first electric telescopic handle's output shaft shorten certain length after that, make first (mixing) shaft, first stirring vane rebound and keep away from the MBR membrane, later just can make second electric telescopic handle's output shaft upwards extend certain length, make top cap and anaerobic jar etc. do not deviate from, and the rebound, thereby open the top cap, later just can conveniently loosen connecting screw, make it separate with the screw thread connected orifices, thereby conveniently wash the MBR membrane, operations such as change, thereby make the MBR membrane can exert the purification filtering action to sewage better.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. Based on carbon capture energy recovery and be used for sewage treatment system of denitrogenation, its characterized in that: the device comprises an anaerobic tank with an anaerobic environment inside, a top cover detachably arranged on the anaerobic tank, a sewage inlet pipe arranged on the top cover, a first control valve arranged on the sewage inlet pipe, a dosing module used for adding medicines into the anaerobic tank, a sewage stirring module used for stirring sewage, an MBR (membrane bioreactor) film detachably arranged in the anaerobic tank, a biogas collection module connected with the anaerobic tank, a nitrification tank which is connected with the anaerobic tank through a sludge extraction pipe and is in an aerobic environment, a seventh control valve arranged on the sludge extraction pipe and a sludge suction pump arranged on the sludge extraction pipe;
the medicine module is including setting up the fixed slot on the top cap diapire, placing the storage cartridge case that has the dephosphorization agent on the fixed slot, setting up the cartridge case top store up into pencil, setting up the second control valve on advancing the pencil, setting up in the cartridge case bottom and run through the pencil of giving medicine down of fixed slot bottom, setting up the third control valve on the pencil of giving medicine down, setting on the fixed slot and with the weighing sensor of storage cartridge case looks adaptation and the supplementary unit of giving medicine down of setting in the cartridge case.
2. The carbon capture energy recovery based sewage treatment system of claim 1 wherein: the upper end of the inner side wall of the top cover is clamped with the outer side wall of the upper end of the anaerobic tank, a sealing gasket matched with the upper end of the inner side wall of the top cover is arranged on the outer side wall of the upper end of the anaerobic tank, a fixing screw used for fixing with the anaerobic tank is arranged at the lower end of the inner side wall of the top cover, a thread fixing hole matched with the fixing screw is arranged on the outer side wall of the upper end of the anaerobic tank, and the thread fixing hole is a blind hole; the anaerobic tank is characterized in that an installation frame used for fixing the side end of an MBR membrane is arranged on the inner side wall of the anaerobic tank, the MBR membrane is clamped with the installation frame, a connecting screw used for fixing the MBR membrane with the installation frame is arranged on the MBR membrane, and a threaded connecting hole matched with the connecting screw is formed in the installation frame.
3. The carbon capture energy recovery based sewage treatment system of claim 2 wherein: the auxiliary unit of giving medicine to the poor free of charge is including setting up the first motor on storage cartridge case top inner wall, the first (mixing) shaft that is connected with the output shaft of first motor and setting up the first stirring vane on first (mixing) shaft.
4. The carbon capture energy recovery based sewage treatment system of claim 3 wherein: the auxiliary unit of giving medicine to the poor free of charge still including set up on the lower extreme inner wall of storage cartridge case and with the play medicine guide fill of giving medicine to the poor free of charge looks adaptation, first stirring vane's shape and play medicine guide fill looks adaptation.
5. The carbon capture energy recovery based sewage treatment system for denitrification of claim 4 wherein: a top cover side end is arranged on the outer side wall of the left side end and the right side end of the upper portion of the anaerobic tank, a first electric telescopic rod is arranged on the side end of the top cover, and a fixing cylinder matched with the upper end of an output shaft of the first electric telescopic rod is arranged on the side end of the top cover.
6. The carbon capture energy recovery based sewage treatment system of claim 5 wherein: the sewage stirring module comprises a second electric telescopic rod vertically arranged on the bottom wall of the top cover, a second motor arranged at the lower end of an output shaft of the second electric telescopic rod, a second stirring shaft arranged on an output shaft of the second motor and a second stirring blade arranged on the second stirring shaft.
7. The carbon capture energy recovery based sewage treatment system for denitrification of claim 6, wherein: the biogas collection module comprises an air storage cylinder, an air guide pipe arranged between the anaerobic tank and the air storage cylinder, an air suction pump arranged on the air guide pipe, a fourth control valve arranged on the air guide pipe, a first air pressure sensor arranged on the top cover, a second air pressure sensor arranged in the air storage cylinder, an exhaust pipe arranged on the air storage cylinder and a fifth control valve arranged on the exhaust pipe, wherein the fourth control valve and the fifth control valve are both one-way valves, and the fourth control valve and the fifth control valve are both electromagnetic valves.
8. The carbon capture energy recovery based sewage treatment system of claim 7 wherein: still be provided with video monitor on the top cap inner wall, the bottom of anaerobic jar still is provided with the supporting leg, the bottom of anaerobic jar still is provided with the outlet pipe, still be provided with the sixth control valve on the outlet pipe, the lower extreme lateral part of anaerobic jar still is provided with transparent observation window.
9. The carbon capture energy recovery based sewage treatment system of claim 8 wherein: the anaerobic tank is characterized in that a control box is further arranged on the outer side wall of the lower end of the anaerobic tank, a microcontroller is arranged in the control box, a touch display screen electrically connected with the microcontroller is further arranged on the control box, the microcontroller is respectively in signal connection with a first control valve, a sludge suction pump, a second control valve, a third control valve, a weighing sensor, a first motor, a first electric telescopic rod, a second motor, an air suction pump, a first air pressure sensor, a second air pressure sensor, a fourth control valve, a fifth control valve, a sixth control valve, a video monitor and a seventh control valve, and the microcontroller can be used for controlling the first control valve, the sludge suction pump, the second control valve, the third control valve, the weighing sensor, the first motor, the first electric telescopic rod, the second motor, the air suction pump, the third control valve, the weighing sensor, the first motor, the first electric telescopic rod, the second electric, The first air pressure sensor, the second air pressure sensor, the fourth control valve, the fifth control valve, the sixth control valve, the video monitor and the seventh control valve are used for monitoring, and a monitoring display area used for displaying a monitoring result of the video monitor is arranged on the touch display screen.
10. A sewage treatment process based on the carbon capture-based energy recovery and denitrification sewage treatment system of claim 8 or 9, characterized in that: comprises the following steps;
s1, opening a first control valve, adding sewage into the anaerobic tank through the sewage inlet pipe, and then closing the first control valve;
s2, starting a first motor to drive a first stirring shaft and a first stirring blade to rotate so as to stir the medicine in the medicine storage cylinder, and opening a second control valve to enable the medicine in the medicine storage cylinder to leave from a medicine feeding pipe and fall into an anaerobic tank;
s3, a second motor is started to drive a second stirring shaft and a second stirring blade to rotate, so that a mixture of sewage and medicines above an MBR membrane in the anaerobic tank is stirred, meanwhile, the second stirring shaft and the second stirring blade can move up and down in the anaerobic tank through the extension and retraction of an output shaft of a second electric telescopic rod, the mixture of sewage and medicines above the MBR membrane in the anaerobic tank is more fully stirred, the mixture of sewage and medicines generates an anaerobic digestion reaction in the anaerobic tank, organic matters in the sewage are converted into biogas, phosphorus-containing substances in the sewage are removed by a phosphorus removal agent, so that the sewage is purified, the organic matters in the sewage are removed, water generated after the anaerobic digestion reaction passes through the MBR membrane and enters the lower part of the anaerobic tank, and large-particle sewage in the sewage is intercepted by the MBR membrane;
s4, opening a seventh control valve, starting a sludge suction pump, further pumping large-particle sewage retained on an MBR membrane out of an anaerobic tank, pumping the large-particle sewage into a nitrification tank, wherein the nitrification tank is an aerobic environment, nitrification reaction occurs after the sewage enters the nitrification tank, nitrite bacteria in the nitrification tank convert ammonia nitrogen in the sewage into nitrite nitrogen, the nitrifying bacteria convert the generated nitrite nitrogen into nitrate nitrogen, and ammonia nitrogen conversion is realized, so that denitrification treatment of the sewage is realized, and in the process of pumping the sludge in the anaerobic tank by using the sludge suction pump and a sludge pumping pipe, a second motor can be simultaneously started, and the sludge can be stirred by a second stirring shaft and a second stirring blade, so that the sludge can be pumped out of the anaerobic tank more quickly;
s6, monitoring the air pressure in the anaerobic tank through a first air pressure sensor, so as to obtain the amount of biogas generated by anaerobic digestion reaction in the anaerobic tank, opening a fourth control valve when the amount of biogas in the anaerobic tank is found to be large, starting an air pump, pumping the biogas generated by anaerobic digestion reaction in the anaerobic tank into an air storage cylinder until the first air pressure sensor finds that the air pressure in the anaerobic tank is recovered to be normal;
s7, when the second air pressure sensor finds that the biogas reaching the threshold value is collected in the air storage cylinder, the fifth control valve can be opened to discharge the biogas from the air storage cylinder, so that the biogas is utilized;
s8, when the flow of water filtered by the MBR membrane reaching the threshold value is collected in the anaerobic tank through the transparent observation window, the sixth control valve may be opened to discharge the flow of water from the anaerobic tank, and the flow of water may be used.
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