CN113248015A - Integrated sewage treatment equipment - Google Patents
Integrated sewage treatment equipment Download PDFInfo
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- CN113248015A CN113248015A CN202110589170.8A CN202110589170A CN113248015A CN 113248015 A CN113248015 A CN 113248015A CN 202110589170 A CN202110589170 A CN 202110589170A CN 113248015 A CN113248015 A CN 113248015A
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- 239000010865 sewage Substances 0.000 title claims abstract description 53
- 238000011282 treatment Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 214
- 239000012528 membrane Substances 0.000 claims abstract description 79
- 239000000126 substance Substances 0.000 claims abstract description 27
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 16
- 238000005273 aeration Methods 0.000 claims description 64
- 239000010802 sludge Substances 0.000 claims description 28
- 238000010992 reflux Methods 0.000 claims description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims description 17
- 239000003814 drug Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- 241000282326 Felis catus Species 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 238000011001 backwashing Methods 0.000 abstract description 69
- 241000894006 Bacteria Species 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 125000001477 organic nitrogen group Chemical group 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 241000700605 Viruses Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003851 biochemical process Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- 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
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses integrated sewage treatment equipment which comprises an equipment main body, wherein a biochemical reaction tank, an MBR membrane tank and a clean water tank are sequentially arranged in the equipment main body; the membrane bioreactor comprises a membrane bioreactor and is characterized in that an MBR membrane assembly is arranged in an MBR membrane tank, the water outlet end of the MBR membrane assembly is connected with a clear water outlet pipe, the clear water outlet pipe is communicated with a clear water tank, the clear water outlet pipe is connected with a backwashing device, the backwashing device comprises a backwashing water pump, a chemical tank and a dosing metering pump, the water inlet end of the backwashing water pump is communicated with the clear water tank, the water outlet end of the backwashing water pump is connected with a backwashing water outlet pipe, the backwashing water outlet pipe is communicated with the clear water outlet pipe, the chemical outlet of the chemical tank is connected with a chemical dosing pipe, the chemical dosing pipe is connected with the backwashing water outlet pipe, and the chemical dosing pipe is provided with a dosing metering pump.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to integrated sewage treatment equipment.
Background
With the improvement of environmental requirements, Membrane Bioreactors (MBR) are widely used for sewage treatment, and the key technical points of MBR application are to reduce membrane pollution and recover membrane flux, and backwashing is one of the effective methods. Although a whole set of backwashing system such as a backwashing pump, a backwashing water tank, a backwashing electromagnetic valve and the like is arranged in a traditional MBR system, the operation condition is severe because the membrane is directly placed in a sewage tank to filter sewage, and the pollution and the flux reduction of the MBR membrane can be caused only by the backwashing water.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an integrated sewage treatment device.
The technical scheme adopted by the invention is as follows:
an integrated sewage treatment device comprises a device main body, wherein a biochemical reaction tank, an MBR membrane tank and a clean water tank are sequentially arranged in the device main body; the membrane bioreactor comprises a membrane bioreactor and is characterized in that an MBR membrane assembly is arranged in an MBR membrane tank, the water outlet end of the MBR membrane assembly is connected with a clear water outlet pipe, the clear water outlet pipe is communicated with a clear water tank, the clear water outlet pipe is connected with a backwashing device, the backwashing device comprises a backwashing water pump, a chemical tank and a dosing metering pump, the water inlet end of the backwashing water pump is communicated with the clear water tank, the water outlet end of the backwashing water pump is connected with a backwashing water outlet pipe, the backwashing water outlet pipe is communicated with the clear water outlet pipe, the chemical outlet of the chemical tank is connected with a chemical dosing pipe, the chemical dosing pipe is connected with the backwashing water outlet pipe, and the chemical dosing pipe is provided with a dosing metering pump.
Preferably, the biochemical reaction tank comprises an anaerobic tank, an anoxic tank and an aerobic tank which are sequentially communicated, and elastic fillers are arranged in the anaerobic tank, the anoxic tank and the aerobic tank.
Preferably, be equipped with pressure sensor, clear water play water solenoid valve, clear water play water pump, clear water play water electromagnetic flowmeter and ultraviolet ray disinfection pipe on the clear water outlet pipe between washing outlet pipe and the clear water pond, pressure sensor, clear water play water solenoid valve, clear water play water pump, clear water play water electromagnetic flowmeter and ultraviolet ray disinfection pipe set gradually along the direction of MBR membrane module to clear water pond.
Preferably, a back flush electromagnetic valve is arranged between the clear water outlet pipe and the medicament dosing pipe on the back flush water outlet pipe.
Preferably, a liquid level meter is arranged in the MBR membrane tank; the bottom of the anoxic pond is provided with a submersible stirrer.
Preferably, this integration sewage treatment device still includes aeration equipment, aeration equipment includes aeration fan and MBR aeration flowmeter, the air outlet of aeration fan is connected with the MBR aeration pipe, the air inlet end of MBR aeration union coupling MBR membrane module, be equipped with MBR aeration flowmeter on the MBR aeration pipe.
Preferably, the aeration device further comprises an aerobic tank aeration pipe and a microporous aeration disc, the air outlet of the aeration fan is further connected with the aerobic tank aeration pipe, the aerobic tank aeration pipe extends to the bottom of the aerobic tank, and the aerobic tank aeration pipe is positioned on the side wall of the bottom part of the aerobic tank and is equidistantly connected with the microporous aeration discs.
Preferably, the bottom of the MBR membrane tank is also provided with a gas stripping sludge reflux pump, the outlet end of the gas stripping sludge reflux pump is connected with a sludge reflux pipe, and the sludge reflux pipe is communicated with the anaerobic tank.
Preferably, the bottom of the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank is respectively provided with a drain port, the drain ports of the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank are connected with a same sewage backflow pipe, and the bottom of the MBR membrane tank is also provided with a sludge discharge port.
Preferably, a sewage inlet is formed in a position, corresponding to the anaerobic tank, of one side wall of the equipment main body, and a clean water outlet is formed in a position, corresponding to the clean water tank, of one side wall of the equipment main body; the periphery of the top of equipment main part is equipped with the equipment guardrail, one side of equipment main part is equipped with the cat ladder, the top equipartition of equipment main part has a plurality of access holes, one side of access hole articulates there is the apron that is used for sealing the access hole.
The invention has the beneficial effects that:
1. because the organic components in the sewage are high and the biodegradability is good, the content of the organic matters in the sewage is greatly reduced by adopting a biomembrane method. The organic nitrogen content in the sewage is high, and the sewage can be in the form of ammonia nitrogen during biodegradationThe ammonia nitrogen index discharged into the water is increased, and the ammonia nitrogen is also a pollution control index, so the anoxic tank is added before the aerobic tank is contacted. The anoxic pond can fully utilize the high-efficiency biological elastic filler in the pond as a bacterial carrier, convert indissolvable organic matters in sewage into soluble organic matters by facultative microorganisms, hydrolyze macromolecular organic matters into micromolecular organic matters so as to be beneficial to further oxidative decomposition of a subsequent aerobic pond, and simultaneously perform denitrification through nitrate brought in a reflux mixed solution and an organic matter carbon source in inlet water to ensure that NO in the inlet water is not oxidized2-、NO3Reduction to N2And CO2The air is released, and the purpose of simultaneously reducing nitrate nitrogen, COD and BOD is achieved.
2. The new process of combining MBR membrane separation technology with traditional anaerobic, anoxic and aerobic processes enables the efficiency of dephosphorization and denitrification and organic matter removal of the whole equipment to reach the maximum effect. The invention carries out ultrafiltration on the sewage treated by the biochemical reaction tank through an MBR membrane component, and utilizes the interception and filtration action of the membrane component to intercept and retain activated sludge and macromolecular organic matters in the biochemical reaction tank, thereby improving the purification efficiency of the wastewater, leading the effluent to be extremely clear, leading the suspended matters and the turbidity to be close to zero, greatly removing bacteria and viruses, leading the water quality of the effluent to reach the first grade A standard of GB 18918-2002 pollutant discharge Standard of urban sewage treatment plant, and being capable of being directly reused as non-drinking municipal miscellaneous water.
3. On one hand, the backwashing water pump and the backwashing electromagnetic valve are adopted to reversely flush the MBR membrane component, so that the effect is more thorough and better in restorability compared with the effect of only using clean water for backwashing; on the other hand, a dosing metering pump and a chemical tank are arranged between the backwashing water pump and the backwashing electromagnetic valve, so that the chemical tank is periodically dosed and backwashed, and the aim of reducing the pollution of the MBR membrane assembly is fulfilled.
4. The invention designs the disinfection pipe on the pipeline of the clear water outlet water pump and the clear water outlet electromagnetic flowmeter, and the strong ultraviolet C light generated by the ultraviolet C light generating device with high efficiency, high strength and long service life irradiates the running water treated by the MBR membrane pool. When the bacteria, viruses and the like in the water are irradiated by a certain dose of ultraviolet C light, DNA structures of the bacteria and the viruses are damaged, so that the bacteria die immediately or can not reproduce later generations, the aims of sterilization, disinfection and purification are fulfilled, and the safety and stability of the water quality of the final discharged water are further promoted.
Drawings
FIG. 1 is a schematic diagram of an internal structure of an apparatus main body according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an MBR membrane module in an embodiment of the present invention;
FIG. 3 is a schematic diagram of an external structure of an apparatus main body according to an embodiment of the present invention;
reference numerals: 1. the device comprises a device body, 2, a biochemical reaction tank, 3, an MBR membrane tank, 4, a clean water tank, 5, an MBR membrane module, 6, a clean water outlet pipe, 7, a backwashing device, 8, a backwashing water pump, 9, a chemical tank, 10, a dosing metering pump, 11, a backwashing water outlet pipe, 12, an anaerobic tank, 13, an anoxic tank, 14, an aerobic tank, 15, elastic filler, 16, a pressure sensor, 17, a clean water outlet electromagnetic valve, 18, a clean water outlet water pump, 19, a clean water outlet electromagnetic flow meter, 20, an ultraviolet disinfection pipe, 21, a backwashing electromagnetic valve, 22, a liquid level meter, 23, a submersible mixer, 24, an aeration device, 25, an aeration fan, 26, an MBR aeration flow meter, 27, an MBR aeration pipe, 28, an aerobic tank aeration pipe, 29, a microporous aeration disc, 30, an air stripping sludge reflux pump, 31, a sludge reflux pipe, 32, a drain hole, 33, a sewage reflux pipe, 34, A mud discharging port 35, a sewage inlet 36, a clean water outlet 37, an equipment guardrail 38, a ladder stand 39, an access hole 40 and a cover plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1-3, an integrated sewage treatment device comprises a device body 1, wherein a biochemical reaction tank 2, an MBR membrane tank 3 and a clean water tank 4 are sequentially arranged in the device body 1; the improved membrane bioreactor is characterized in that an MBR membrane assembly 5 is arranged in the MBR membrane tank 3, the water outlet end of the MBR membrane assembly 5 is connected with a clean water outlet pipe 6, the clean water outlet pipe 6 is communicated with a clean water tank 4, the clean water outlet pipe 6 is connected with a backwashing device 7, the backwashing device 7 comprises a backwashing water pump 8, a chemical tank 9 and a dosing metering pump 10, the water inlet end of the backwashing water pump 8 is communicated with the clean water tank, the water outlet end of the backwashing water pump 8 is connected with a backwashing water outlet pipe 11, the backwashing water outlet pipe 11 is communicated with the clean water outlet pipe 6, the chemical outlet of the chemical tank 9 is connected with a chemical dosing pipe, the chemical dosing pipe is connected with the backwashing water outlet pipe 11, and the chemical dosing metering pump 10 is arranged on the chemical dosing pipe.
After the sewage is treated by the early-stage adjusting tank and other related treatments, the sewage can be sent into the biochemical reaction tank 2 by the lifting pump to carry out biochemical reaction to reduce harmful substances in the sewage, the sewage treated by the biochemical reaction tank 2 enters the MBR membrane tank 3, impurities which can not be degraded and active mud are efficiently separated to obtain stable reclaimed water which is directly used, and the stable reclaimed water is sent to the clean water tank 4 by the clean water outlet pipe 6 to be stored for later use. The clear water outlet pipe 6 is also connected with a back washing device 7 for back washing the MBR membrane module 5 at the core part of the MBR membrane tank 3, the back washing device 7 pumps water in the clear water tank 4 through a back washing water pump 8 to wash the MBR membrane module 5, the back washing water pump 8 pumps water in the clear water tank 4 and reversely feeds the water into the MBR membrane module 5 through a back washing water outlet pipe 11 and the clear water outlet pipe 6, and during back washing, the dosing metering pump 10 can also quantitatively feed medicaments in the medicament tank 9 into the back washing water outlet pipe 11 for mixing, so that the cleaning effect of back washing is enhanced.
The biochemical reaction tank 2 comprises an anaerobic tank 12, an anoxic tank 13 and an aerobic tank 14 which are sequentially communicated, and elastic fillers 15 are respectively arranged in the anaerobic tank 12, the anoxic tank 13 and the aerobic tank 14.
The biochemical reaction tank 2 mainly performs biochemical reaction, and performs denitrification and descaling on the sewage through a biochemical process, and the biochemical process of the biochemical reaction tank 2 mainly is an AAO (Anaerobic-Oxic-aerobic) process, which respectively corresponds to the Anaerobic tank 12, the Anoxic tank 13 and the aerobic tank 14.
Because the content of ammonia nitrogen and organic matters in sewage is high, especially organic nitrogen, when the organic matters are biodegraded, the organic nitrogen can be expressed in the form of ammonia nitrogen, and the ammonia nitrogen is also an important pollution control index, the sewage treatment adopts an anaerobic anoxic aerobic AAO process, and the process simultaneously has the functions of removing the organic matters, nitrogen and phosphorus.
1. The anaerobic tank 12:
raw sewage and phosphorus-containing sludge reflowing from the MBR membrane tank 3 synchronously enter the anaerobic tank 12, phosphorus accumulating bacteria in the reflowing sludge hydrolyze intracellular polymerized phosphate into orthoformate to release phosphorus, part of the obtained energy is used for the phosphorus accumulating bacteria to maintain the existence in the anaerobic environment, and the other part of the obtained energy is used for microorganisms to absorb fatty acid low-molecular-weight organic matters in the environment, so that the biodegradability of water is improved. And simultaneously provides a carbon source suitable for the denitrification process for the anoxic stage. The reaction formula is as follows:
Na5P3O10+H2O＝Na4P2O7+NaH2PO4
Na4P2O7+H2O＝(Na2HPO4)2
2. an anoxic tank 13:
in the anoxic tank 13, denitrifying bacteria utilize organic matters in the sewage as carbon sources to carry out nitration reaction under the catalytic action of denitrifying bacteria, and carry a large amount of nitrate nitrogen into the reflux mixed liquor to be reduced into N2And CO2The air is released, and the purpose of simultaneously reducing nitrate nitrogen, COD and BOD is achieved. The reaction formula is as follows:
the general reaction formula is as follows:
6NO2 -+3CH3OH→3N2↑+3H2O+3CO2↑+OH-
3) an aerobic tank 14:
in the aerobic tank 14, the aerobic bacteria oxidize, decompose and combine the organic substances into new cells through biological activities of the bacteria, and decompose the new cells into carbon dioxide and water through a microbial biochemical degradation mode. The organic nitrogen is ammoniated and then nitrified, and the phosphorus is excessively taken by the phosphorus accumulating bacteria and rapidly reduced.
Under the action of ammoniation bacteria, organic nitrogen is decomposed and converted into ammoniacal nitrogen, and the reaction formula is as follows:
CH2(OH)CH(NH2)COOH→CH3COCOOH+NH3
ammonia nitrogen in the sewage is oxidized into nitrate under the action of microorganisms under the aerobic condition.
And a pressure sensor 16, a clear water outlet electromagnetic valve 17, a clear water outlet water pump 18, a clear water outlet electromagnetic flowmeter 19 and an ultraviolet disinfection pipe 20 are arranged between the flushing outlet pipe and the clear water tank 4 on the clear water outlet pipe 6, and the pressure sensor 16, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18, the clear water outlet electromagnetic flowmeter 19 and the ultraviolet disinfection pipe 20 are sequentially arranged along the direction from the MBR membrane component 5 to the clear water tank 4.
The pressure sensor 16 is used for detecting the water pressure in the clear water outlet pipe 6, the blocking condition of the membrane in the MBR membrane module 5 can be judged through the detected water pressure, and the backwashing device 7 can be controlled to backwash the MBR membrane module 5 after the MBR membrane module 5 is blocked to a certain degree. The clear water outlet electromagnetic valve 17 is used for controlling the on-off of the clear water outlet pipe 6, and the clear water is discharged by controlling the MBR membrane pool 3 through the on-off of the clear water outlet electromagnetic valve 17. The clear water outlet water pump 18 is used for pumping clear water discharged by the MBR membrane assembly 5 into the clear water tank 4, the clear water pumped by the clear water outlet water pump 18 enters the clear water tank 4 after being sterilized and disinfected by the ultraviolet disinfection pipe 20, and the clear water outlet electromagnetic flowmeter 19 is used for detecting and counting the amount of the clear water pumped into the clear water tank 4.
A back flush electromagnetic valve 21 is arranged between the clear water outlet pipe 6 and the medicament dosing pipe on the back flush water outlet pipe 11.
The back washing electromagnetic valve 21 is used for controlling the on-off of the back washing water outlet pipe 11, thereby controlling the working state of the back washing device 7.
When the MBR membrane tank 3 works, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18 and the ultraviolet disinfection pipe 20 are opened, the backwashing water pump 8 and the backwashing electromagnetic valve 21 are closed, the MBR membrane module 5 produces water, and clean water flows into the clear water tank 4 through the pressure sensor 16, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18, the clear water outlet electromagnetic flow meter 19 and the ultraviolet disinfection pipe 20; when the MBR membrane tank 3 works for a period of time and enters the backwashing time, the backwashing water pump 8, the dosing metering pump 10 and the backwashing electromagnetic valve 21 are opened, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18 and the ultraviolet disinfection pipe 20 are closed, water in the clear water tank 4 is pressurized by the backwashing water pump 8 and then enters the MBR membrane module 5 through a pipeline of the backwashing electromagnetic valve 21 to form backwashing, and the dosing metering pump 10 and the chemical tank 9 are arranged between the backwashing water pump 8 and the backwashing electromagnetic valve 21 to carry out periodic dosing backwashing. The continuous circulation operation is carried out, thereby achieving the purpose of reducing the pollution of the MBR membrane module 5.
And an adjusting valve and a pressure gauge can be arranged between the backwashing water pump 8 and the dosing metering pump 10 on the backwashing water outlet pipe 11 and used for adjusting the backwashing water pressure of the backwashing water quantity monitoring.
A liquid level meter 22 is arranged in the MBR membrane tank 3; and a submersible stirrer 23 is arranged at the bottom of the anoxic pond 13.
The liquid level meter 22 is used for detecting the clear water level in the MBR membrane tank 3, when the water level is low, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18 and the ultraviolet disinfection pipe 20 are stopped, so that the MBR membrane module 5 is prevented from pumping air, and when the water level is high, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18 and the ultraviolet disinfection pipe 20 are started.
This integration sewage treatment device still includes aeration equipment 24, aeration equipment 24 includes aeration fan 25 and MBR aeration flowmeter 26, aeration fan 25's air outlet is connected with MBR aeration pipe 27, MBR aeration pipe 27 is connected the air inlet end of MBR membrane module 5, be equipped with MBR aeration flowmeter 26 on the MBR aeration pipe 27.
The aeration fan 25 aerates the MBR membrane tank 3 through the MBR aeration pipe 27.
The aeration device 24 further comprises an aerobic tank aeration pipe 28 and a microporous aeration disc 29, the air outlet of the aeration fan 25 is further connected with the aerobic tank aeration pipe 28, the aerobic tank aeration pipe 28 extends to the bottom of the aerobic tank 14, and the side wall of the part, located at the bottom of the aerobic tank 14, of the aerobic tank aeration pipe 28 is connected with the microporous aeration discs 29 at equal intervals.
The aeration fan 25 aerates the aerobic tank 14 through the aerobic tank aeration pipe 28 and the microporous aeration disc 29.
The bottom of the MBR membrane tank 3 is also provided with a gas stripping sludge reflux pump 30, the outlet end of the gas stripping sludge reflux pump 30 is connected with a sludge reflux pipe 31, and the sludge reflux pipe 31 is communicated with the anaerobic tank 12.
The sludge deposited at the bottom of the MBR membrane tank 3 still contains a certain amount of nitrate, the sludge deposited at the bottom of the MBR membrane tank 3 is pumped by the air-stripping sludge reflux pump 30 and sent into the anaerobic tank 12 to participate in denitrification reaction again, so that NO in the sewage entering the anaerobic tank 122 -、NO3 -Reduction to N2And CO2The air is released, and the purpose of simultaneously reducing nitrate nitrogen, COD and BOD is achieved.
The bottom of anaerobism pond 12, oxygen deficiency pond 13, good oxygen pond 14 and MBR membrane cisterna 3 is equipped with evacuation mouth 32 respectively, the evacuation mouth 32 of anaerobism pond 12, oxygen deficiency pond 13, good oxygen pond 14 and MBR membrane cisterna 3 is connected with same sewage backflow pipe 33, the bottom of MBR membrane cisterna 3 still is equipped with mud discharging port 34.
The emptying ports 32 are used for emptying the anaerobic tank 12, the anoxic tank 13, the aerobic tank 14 and the MBR membrane tank 3 during maintenance periodically, and the discharge of each emptying port 32 is connected through the same sewage return pipe 33, and the sewage return pipe 33 can be connected to a regulating tank for circularly treating the discharge and saving water resources. The sludge outlet 34 is used for periodically discharging sludge with low water content accumulated in the MBR membrane tank 3. The sludge discharge port 34 can be connected with a sludge tank through a sludge discharge pipe.
A sewage inlet 35 is formed in a position, corresponding to the anaerobic tank 12, of one side wall of the equipment main body 1, and a clean water outlet 36 is formed in a position, corresponding to the clean water tank 4, of one side wall of the equipment main body 1; the peripheral equipment guardrail 37 that is equipped with in top of equipment main part 1, one side of equipment main part 1 is equipped with cat ladder 38, the top equipartition of equipment main part 1 has a plurality of access holes 39, one side of access hole 39 articulates there is the apron 40 that is used for sealing access hole 39.
The sewage inlet 35 can be connected with the water outlet of the adjusting tank, and the adjusting tank inputs sewage into the equipment through the sewage inlet 35 for treatment. The clean water outlet 36 is used for supplying the clean water in the clean water tank 4 to the outside. When the equipment needs to be overhauled, the maintainer can go up to the top of the equipment through the ladder stand 38 and enter the equipment through the access opening 39 for overhauling.
In the invention, an operation room can be arranged in the equipment main body 1, a control terminal is arranged in the operation room to control the whole equipment, the pressure sensor 16, the clear water outlet electromagnetic valve 17, the clear water outlet water pump 18, the clear water outlet electromagnetic flow meter 19, the ultraviolet disinfection pipe 20, the backwashing water pump 8, the dosing metering pump 10, the backwashing electromagnetic valve 21, the liquid level meter 22, the submersible mixer 23, the aeration fan 25, the MBR aeration flow meter 26 and the air-stripping sludge reflux pump 30 are all connected with the control terminal, the controller detects the running state of the equipment according to the pressure sensor 16 and the liquid level meter 22 to control other execution components, and the connection and control principle of the control terminal and the components belong to the prior art, and are not described herein again.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The integrated sewage treatment equipment is characterized by comprising an equipment main body (1), wherein a biochemical reaction tank (2), an MBR membrane tank (3) and a clean water tank (4) are sequentially arranged in the equipment main body (1); be equipped with MBR membrane module (5) in MBR membrane cisterna (3), the play water end of MBR membrane module (5) is connected with clear water outlet pipe (6), clear water outlet pipe (6) and clear water basin (4) intercommunication, clear water outlet pipe (6) are connected with back flush unit (7), back flush unit (7) include back flush water pump (8), chemical tank (9) and add medicine measuring pump (10), the end of intaking of back flush water pump (8) communicates with clear water basin (4), the play water end of back flush water pump (8) is connected with back flush outlet pipe (11), back flush outlet pipe (11) and clear water outlet pipe (6) intercommunication, the medicine mouth of chemical tank (9) is connected the medicament and is added the pencil, the medicament adds medicine union coupling back flush outlet pipe (11), be equipped with medicine measuring pump (10) on the medicament and add the pencil.
2. The integrated sewage treatment device according to claim 1, wherein the biochemical reaction tank (2) comprises an anaerobic tank (12), an anoxic tank (13) and an aerobic tank (14) which are sequentially communicated, and elastic fillers (15) are arranged in the anaerobic tank (12), the anoxic tank (13) and the aerobic tank (14).
3. The integrated sewage treatment equipment according to claim 2, wherein a pressure sensor (16), a clean water outlet electromagnetic valve (17), a clean water outlet water pump (18), a clean water outlet electromagnetic flow meter (19) and an ultraviolet disinfection pipe (20) are arranged on the clean water outlet pipe (6) between the flushing outlet pipe and the clean water tank (4), and the pressure sensor (16), the clean water outlet electromagnetic valve (17), the clean water outlet water pump (18), the clean water outlet electromagnetic flow meter (19) and the ultraviolet disinfection pipe (20) are sequentially arranged along the direction from the MBR (5) to the clean water tank (4).
4. The integrated sewage treatment equipment according to claim 3, wherein a back flush solenoid valve (21) is arranged on the back flush water outlet pipe (11) between the clear water outlet pipe (6) and the medicament feeding pipe.
5. The integrated wastewater treatment equipment according to claim 4, wherein a liquid level meter (22) is arranged in the MBR membrane tank (3); the bottom of the anoxic pond (13) is provided with a submersible stirrer (23).
6. The integrated sewage treatment device according to claim 5, further comprising an aeration device (24), wherein the aeration device (24) comprises an aeration fan (25) and an MBR aeration flow meter (26), an air outlet of the aeration fan (25) is connected with an MBR aeration pipe (27), the MBR aeration pipe (27) is connected with an air inlet end of the MBR membrane module (5), and the MBR aeration pipe (27) is provided with the MBR aeration flow meter (26).
7. The integrated sewage treatment apparatus according to claim 6, wherein the aeration device (24) further comprises an aerobic tank aeration pipe (28) and a microporous aeration disc (29), the air outlet of the aeration fan (25) is further connected with the aerobic tank aeration pipe (28), the aerobic tank aeration pipe (28) extends to the bottom of the aerobic tank (14), and the aerobic tank aeration pipe (28) is located on the side wall of the bottom portion of the aerobic tank (14) and is equidistantly connected with the microporous aeration discs (29).
8. The integrated sewage treatment device according to claim 7, wherein a stripping sludge reflux pump (30) is further arranged at the bottom of the MBR membrane tank (3), a sludge reflux pipe (31) is connected to the outlet end of the stripping sludge reflux pump (30), and the sludge reflux pipe (31) is communicated with the anaerobic tank (12).
9. The integrated sewage treatment device according to claim 8, wherein the bottom of the anaerobic tank (12), the anoxic tank (13), the aerobic tank (14) and the MBR membrane tank (3) are respectively provided with a drain hole (32), the drain holes (32) of the anaerobic tank (12), the anoxic tank (13), the aerobic tank (14) and the MBR membrane tank (3) are connected with the same sewage backflow pipe (33), and the bottom of the MBR membrane tank (3) is further provided with a sludge discharge port (34).
10. The integrated sewage treatment device according to claim 9, wherein a sewage inlet (35) is provided at a position of one side wall of the device body (1) corresponding to the anaerobic tank (12), and a clean water outlet (36) is provided at a position of one side wall of the device body (1) corresponding to the clean water tank (4); the top periphery of equipment main part (1) is equipped with equipment guardrail (37), one side of equipment main part (1) is equipped with cat ladder (38), the top equipartition of equipment main part (1) has a plurality of access holes (39), one side of access hole (39) articulates there is apron (40) that are used for sealing access hole (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110589170.8A CN113248015A (en) | 2021-05-28 | 2021-05-28 | Integrated sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110589170.8A CN113248015A (en) | 2021-05-28 | 2021-05-28 | Integrated sewage treatment equipment |
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| Publication Number | Publication Date |
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| CN113248015A true CN113248015A (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110589170.8A Withdrawn CN113248015A (en) | 2021-05-28 | 2021-05-28 | Integrated sewage treatment equipment |
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| CN (1) | CN113248015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113697958A (en) * | 2021-09-02 | 2021-11-26 | 河南永泽环境科技有限公司 | Integrated intelligent water treatment equipment |
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2021
- 2021-05-28 CN CN202110589170.8A patent/CN113248015A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113697958A (en) * | 2021-09-02 | 2021-11-26 | 河南永泽环境科技有限公司 | Integrated intelligent water treatment equipment |
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Application publication date: 20210813 |
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