CN110668659A - Integrated sewage purification equipment - Google Patents
Integrated sewage purification equipment Download PDFInfo
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- CN110668659A CN110668659A CN201911105604.1A CN201911105604A CN110668659A CN 110668659 A CN110668659 A CN 110668659A CN 201911105604 A CN201911105604 A CN 201911105604A CN 110668659 A CN110668659 A CN 110668659A
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- 239000010865 sewage Substances 0.000 title claims abstract description 91
- 238000000746 purification Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000010802 sludge Substances 0.000 claims abstract description 46
- 238000010992 reflux Methods 0.000 claims description 36
- 239000000945 filler Substances 0.000 claims description 27
- 238000012856 packing Methods 0.000 claims description 27
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 9
- 238000005273 aeration Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001546 nitrifying effect Effects 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 27
- 230000008569 process Effects 0.000 description 26
- 239000007789 gas Substances 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000802 nitrating effect Effects 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses integrated sewage purification equipment, relates to the technical field of sewage treatment, and aims to solve the problems that the existing equipment is difficult to reach the standard, the loss of activated sludge is serious, the adaptability of the existing equipment is weak, the transportation of the equipment is difficult, the investment of supporting facilities is huge, the energy consumption is overhigh, and the operating cost is higher. The invention has stable water outlet, flexible construction mode, energy saving, cost reduction, modularization and operation and maintenance management.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to integrated sewage purification equipment.
Background
Aiming at the technical defects and shortcomings of the integrated sewage purification equipment which is mainly used in the A2/O-MBBR sewage treatment process, the invention improvesThe treatment scale of the integrated sewage purification equipment with the dominant process is usually 5-200m3The process equipment finds its major application in small-scale domestic wastewater treatment plants (plants) through the use of a large number of products. The prior art has the following defects and shortcomings:
①, difficulty in reaching standard
A large number of practical applications prove that in the running process of the A2/O-MBBR sewage treatment process, because the treatment scale is small, the actual concentration change of sewage is large, the application of rural domestic sewage treatment is particularly remarkable, the time interval change of sewage is large, the C/N ratio is seriously unbalanced, the nitrogen content in effluent is high, the sludge backflow is carried out in a sedimentation tank, the relative flow rate is increased, the sedimentation retention time is shortened, nitrogen generated by sludge aging or denitrification is generated, the sludge in the sedimentation tank floats upwards in a large amount, the sludge-water separation effect is poor, effluent suspended substances, TN and TP can hardly reach the first-level A standard of discharge standards of urban sewage treatment plants (GB18918-2002), deep treatment equipment is required to be added, and the project investment is increased.
② loss of activated sludge is serious
The application of the A2/O-MBBR sewage treatment process in rural domestic sewage treatment has the advantages that the treatment scale is small, the pollutant concentration is low, activated sludge runs under a long-time low-load state, aerobic digestion of the activated sludge is easy to occur, flocculation is decomposed after the sludge is aged, sludge backflow and effluent in a sedimentation tank are parallel, the relative flow rate is overlarge, the backflow ratio is not easy to control, the activated sludge is lost in the running process, the loss is larger than the natural metabolic quantity of a biological membrane, the sewage treatment effect is seriously reduced, and sewage nutrients and activated sludge need to be supplemented regularly.
③ the existing device has weak adaptability
At present, the rural sewage treatment scale is relatively small (5-200 m)3And/d), and the types of mixed sewage are various, such as: a small amount of culture wastewater, seasonal small amount of agricultural product processing wastewater (such as coffee cleaning wastewater, walnut shelling wastewater and the like) cause large sewage load change, and the existing A2/O-MBBR sewage treatment process technology does not consider the part of wastewater, so that the adaptability is high in practical applicationWeak, and unstable water production of equipment after the sewage load is easily increased. The invention aims at the variability of rural sewage, adopts two different operation modules, and has obvious effect in rural practical application.
④ the existing equipment is difficult to transport and the investment of the supporting facilities is huge
The existing A2/O-MBBR sewage treatment process equipment is found in the construction process of rural sewage treatment projects, the current village has narrow roads, the building materials and the existing equipment have large volumes, and the transportation is difficult. Meanwhile, the existing equipment has more supporting facilities, such as a grating channel (well), a primary grit chamber, a regulating tank, a sludge tank, an equipment control room and the like. The invention can be produced in a modularized way according to the actual road condition in the countryside, and can be spliced and assembled in a project place to solve the transportation problem. Through the practical application of different projects, the matched facilities only consider the grid ditch (well), the adjusting tank and the sludge tank, and the equipment control room and the equipment main body are produced in a combined manner, so that the control and the management of the equipment are facilitated. Meanwhile, the overall investment of supporting facilities in the project implementation process is reduced.
⑤ high energy consumption and high operation cost
The energy consumption of the existing A2/O-MBBR sewage treatment process technology is about 0.7kwh/m3Sewage has the problems of high energy consumption, high operating cost and difficult later maintenance. The improvement and practice of the A2/O-MBBR sewage treatment process technical route prove that the method has the advantages of high efficiency, low cost and high efficiency. A steam stripping mode is adopted in the actual operation process of sludge backflow and nitrification liquid backflow, degassing separation is carried out through a two-phase separator, and energy consumption in conveying by a lifting pump is avoided. Meanwhile, operation fault points are reduced, and later operation and maintenance difficulties are reduced. By adopting the improved process route, the oxygen supply efficiency of the fan is improved by 20 percent, the reduction of the output power of the fan has obvious effects on the service life and the operating power of the fan, and the operating cost is reduced. Through a large number of practical application projects, the energy consumption of the invention is reduced to 0.55kwh/m3About sewage. The running cost of the equipment in the actual operation process is reduced.
Disclosure of Invention
The integrated sewage purification equipment provided by the invention solves the problems that the existing equipment is difficult to reach the standard, the loss of activated sludge is serious, the adaptability of the existing equipment is weak, the equipment is difficult to transport, the investment of supporting facilities is huge, the energy consumption is overhigh and the operating cost is higher.
In order to achieve the purpose, the invention adopts the following technical scheme:
integration sewage purification equipment, including the grid canal, the right side of grid canal is equipped with the equalizing basin, the right side of equalizing basin is equipped with the anaerobic section, the inside of anaerobic section is equipped with detachable filler subassembly, one side that the equalizing basin was kept away from to the anaerobic section is equipped with the anoxic section, one side that the anaerobic section was kept away from to the anoxic section is equipped with the MBBR section, the inside of MBBR section is equipped with low gas consumption strip reflux unit, one side that the anoxic section was kept away from to the MBBR section is equipped with high-efficient denitrogenation pond, the inside in high-efficient denitrogenation pond also is equipped with low gas consumption strip reflux unit, one side that the MBBR section was kept away from to high-efficient denitrogenation pond is equipped with the pipe chute, one side that high-efficient denitrogenation pond was kept away from to the pipe chute is equipped with the equipment room, the right side of equipment room is equipped with the.
Preferably, high-efficient denitrogenation pond includes that first two-phase separator, strip are responsible for, central water distributor, anti-water baffle, strip air supply pipe, mud backward flow inlet tube, play weir groove and inlet tube, the bottom of first two-phase separator is connected with the strip and is responsible for, the outside cover that the strip is responsible for is equipped with central water distributor, the anti-water baffle of bottom fixedly connected with of central water distributor, the below of anti-water baffle is equipped with the strip air supply pipe, the one end of strip air supply pipe is connected with the mud backward flow inlet tube, the left side that the strip is responsible for is equipped with out the weir groove, one side that a weir groove was kept away from to central water distributor is connected with the inlet tube.
Preferably, detachable filler subassembly includes equipment principal, three-dimensional elastic filler, upper filler fixed bolster, lower floor's filler fixed bolster and filler subassembly pillar, the inside of equipment principal is equipped with two three-dimensional elastic fillers, the top of three-dimensional elastic filler is connected with upper filler fixed bolster, the bottom of three-dimensional elastic filler is connected with lower floor's filler fixed bolster, the four corners of upper filler fixed bolster and lower floor's filler fixed bolster are equipped with the filler subassembly pillar.
Preferably, the low gas consumption stripping reflux device comprises a second two-phase separator, a reflux pipe, a two-phase separator water inlet pipe, a stripping gas supply pipe and a reflux liquid water inlet pipe, wherein the reflux pipe is connected to one side of the second two-phase separator, the two-phase separator water inlet pipe is connected to the bottom of the second two-phase separator, the stripping gas supply pipe is fixedly connected to the left side of the bottom of the two-phase separator water inlet pipe, and the reflux liquid water inlet pipe is fixedly connected to the bottom of the two-phase separator water inlet pipe.
Preferably, be connected with the sewage inlet channel between grid canal and the equalizing basin, be equipped with the elevator pump in the equalizing basin, also be equipped with the sewage inlet channel between equalizing basin and the anaerobism section, be located install check valve and temperature sensor on the sewage inlet channel between equalizing basin and the anaerobism section, and the check valve is close to the equalizing basin, and temperature sensor is close to the setting of anaerobism section.
Preferably, the inside of MBBR section is equipped with a plurality of horizontal regulators, the top of horizontal regulator is connected with the aeration dish, the inside of MBBR section is equipped with its volumetric 20% suspension filler, is located inside the MBBR section be connected with the liquid back flow of nitrating on the low gas consumption strip reflux unit, and the liquid back flow of nitrating is kept away from the one end of low gas consumption strip reflux unit and is stretched into in the anoxic section, is located inside the high-efficient denitrogenation pond be connected with the gas stripping mud back flow pipe on the low gas consumption strip reflux unit, the one end that the gas stripping mud back flow pipe was kept away from low gas consumption strip reflux unit stretches into in the anaerobic section.
Preferably, including ultraviolet disinfector, well accuse cabinet, rotary fan between equipment, the top of ultraviolet disinfector is equipped with well accuse cabinet, the top of well accuse cabinet is equipped with rotary fan, the last breather pipe that is connected with of rotary fan, the inside in anaerobism section, anoxic section and high-efficient denitrogenation pond all is equipped with the first pipe of being connected with the breather pipe, the inside in MBBR section is equipped with the second pipe of being connected in breather pipe and aeration dish respectively, all install the solenoid valve on first pipe and the second pipe.
Preferably, be connected with row's mud pipeline between pipe chute sedimentation tank and the sludge impoundment, be equipped with the ball valve on the row's mud pipeline, one side that sludge impoundment was kept away from to the ball valve is equipped with the motorised valve of installing on row's mud pipeline.
Compared with the prior art, the invention has the beneficial effects that:
1. the effluent is stable, the traditional A2/O-MBBR sewage treatment process technology is improved, a denitration pool is added, the change range of rural sewage is increased, the impact load of equipment operation is improved, and the effluent is ensured to stably reach the first-class A standard of discharge Standard of municipal Sewage treatment plant (GB 18918-2002).
2. The construction mode is flexible, and the site selection and construction of projects are facilitated by aiming at the characteristics of uncertainty of rural landforms and relatively scattered villages. Meanwhile, sewage treatment equipment with different treatment scales can be installed according to the sewage production amount of villages, so that the construction investment of a sewage collection pipe network is reduced, the on-site reuse of sewage is facilitated, and the recycling of water resources is improved.
3. The energy-saving and cost-reducing device is characterized in that the traditional A2/O-MBBR sewage treatment process technology is improved, the device only has a fan as a main energy consumption device, the fan adopts frequency conversion control, the air supply quantity of the fan is adjusted through frequency conversion according to the actual sewage concentration load, the actual operation power of the fan is reduced, the stripping reflux is utilized, the aerobic aeration efficiency is improved, the operation energy consumption is reduced, and therefore the operation cost is reduced.
4. Modularization can be realized, and the modularized splicing can be realized according to the actual situation of the project location and the conditions or the parallel operation can be performed according to the population development of villages and small towns.
5. The operation and maintenance management method has the advantages of simple process flow, higher automation degree and lower requirement on professional quality of operation and maintenance personnel, and only needs regular inspection by adopting an intelligent module for operation.
Drawings
FIG. 1 is a schematic front view of an integrated sewage purification apparatus according to the present invention;
FIG. 2 is a schematic front view of a stripping reflux unit with low gas consumption for an integrated sewage purification device according to the present invention;
FIG. 3 is a schematic front view of a detachable packing assembly of the integrated sewage treatment apparatus according to the present invention;
FIG. 4 is a schematic view of the front view structure of the high-efficiency denitrification tank of the integrated sewage purification device provided by the invention.
In the figure: 1 grating channel, 2 sewage inlet pipes, 3 regulating tanks, 4 check valves, 5 temperature sensors, 6 anaerobic sections, 7 anoxic sections, 8MBBR sections, 9 high-efficiency denitrification tanks, 901 first two-phase separators, 902 stripping main pipes, 903 central water distribution pipes, 904 water-return baffles, 905 stripping air supply pipes, 906 sludge return water inlet pipes, 907 water outlet weir grooves, 908 water inlet pipes, 10 inclined pipe settling sections, 11 equipment rooms, 12 sludge tanks, 13 discharge tanks, 14 ultraviolet disinfectors, 15 central control cabinets, 16 rotary fans, 17 vent pipes, 18 electromagnetic valves, 19 air-stripping sludge return pipes, 20 nitrified liquid return pipes, 21 detachable filler components, 211 equipment bodies, 212 three-dimensional elastic fillers, 213 upper-layer filler fixing supports, 214 lower-layer filler fixing supports, 215 filler component supports, 22 aeration discs, 23 suspended fillers, 24 horizontal regulators, 25 sludge pipes, 26 low-air-consumption stripping return devices, 261 second two-phase separator, 262 return pipe, 263 two-phase separator inlet pipe, 264 stripping gas supply pipe, 265 return liquid inlet pipe.
Detailed Description
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.
Referring to fig. 1-4, integration sewage purification equipment, including grid channel 1, the right side of grid channel 1 is equipped with equalizing basin 3, the right side of equalizing basin 3 is equipped with anaerobic section 6, the inside of anaerobic section 6 is equipped with detachable filler subassembly 21, one side that equalizing basin 3 was kept away from to anaerobic section 6 is equipped with anoxic section 7, one side that anaerobic section 6 was kept away from to anoxic section 7 is equipped with MBBR section 8, the inside of MBBR section is equipped with low gas consumption stripping reflux unit 26, one side that anoxic section 7 was kept away from to MBBR section 8 is equipped with high-efficient denitrogenation pond 9, the inside of high-efficient denitrogenation pond 9 also is equipped with low gas consumption stripping reflux unit 26, one side that MBBR section 8 was kept away from to high-efficient denitrogenation pond 9 is equipped with pipe chute 10, one side that high-efficient denitrogenation pond 9 was kept away from to pipe chute 10 is equipped with equipment room 11, the right side of equipment room 11 is equipped with discharge tank 13.
In this embodiment, the high-efficiency denitrification pool 9 includes a first two-phase separator 901, a stripping main pipe 902, a central water distribution pipe 903, a water return baffle 904, a stripping air supply pipe 905, a sludge return water inlet pipe 906, a water outlet weir notch 907, and a water inlet pipe 908, the bottom of the first two-phase separator 901 is connected with the stripping main pipe 902, the central water distribution pipe 903 is sleeved outside the stripping main pipe 902, the bottom end of the central water distribution pipe 903 is fixedly connected with the water return baffle 904, the stripping air supply pipe 905 is arranged below the water return baffle 904, one end of the stripping air supply pipe 905 is connected with the sludge return water inlet pipe 906, the water outlet notch 907 is arranged on the left side of the stripping main pipe 902, and one side of the central water distribution pipe 903.
In this embodiment, the detachable packing component 21 includes an apparatus main body 211, three-dimensional elastic packing 212, an upper packing fixing support 213, a lower packing fixing support 214, and a packing component support 215, two three-dimensional elastic packing 212 are disposed inside the apparatus main body 211, the top of the three-dimensional elastic packing 212 is connected with the upper packing fixing support 213, the bottom of the three-dimensional elastic packing 212 is connected with the lower packing fixing support 214, and the four corners of the upper packing fixing support 213 and the lower packing fixing support 214 are provided with the packing component support 215.
In this embodiment, the low gas consumption stripping reflux device 26 includes a second two-phase separator 261, a reflux pipe 262, a two-phase separator inlet pipe 263, a stripping gas supply pipe 264 and a reflux liquid inlet pipe 265, one side of the second two-phase separator 261 is connected with the reflux pipe 262, the bottom of the second two-phase separator 261 is connected with the two-phase separator inlet pipe 263, the stripping gas supply pipe 264 is fixedly connected to the left side of the bottom of the two-phase separator inlet pipe 263, and the reflux liquid inlet pipe 265 is fixedly connected to the bottom of the two-phase separator inlet pipe 263.
In this embodiment, be connected with sewage inlet pipe 2 between grid canal 1 and the equalizing basin 2, be equipped with the elevator pump in the equalizing basin 3, also be equipped with sewage inlet pipe 2 between equalizing basin 2 and the anaerobism section 6, be located and install check valve 4 and temperature sensor 5 on the sewage inlet pipe 2 between equalizing basin 2 and the anaerobism section 6, and check valve 4 is close to equalizing basin 3, and temperature sensor 5 is close to the setting of anaerobism section 6.
In this embodiment, a plurality of horizontal regulators 24 are arranged inside the MBBR section 8, the top ends of the horizontal regulators 24 are connected with an aeration disc 22, 20% of the volume of the suspended filler 23 is filled inside the MBBR section 8, a nitrifying liquid return pipe 20 is connected to a low-gas-consumption stripping reflux device 26 inside the MBBR section 8, one end of the nitrifying liquid return pipe 20, which is far away from the low-gas-consumption stripping reflux device 26, extends into the anoxic section 7, a stripped sludge return pipe 19 is connected to the low-gas-consumption stripping reflux device 26 inside the high-efficiency denitrification tank 9, and one end of the stripped sludge return pipe 19, which is far away from the low-gas-consumption stripping reflux device 26, extends into the anaerobic section 6.
In this embodiment, the equipment room 11 includes an ultraviolet sterilizer 14, a central control cabinet 15, a rotary fan 16, the central control cabinet 15 is arranged above the ultraviolet sterilizer 14, the rotary fan 16 is arranged above the central control cabinet 15, a ventilation pipe 17 is connected to the rotary fan 16, a first guide pipe connected with the ventilation pipe 17 is arranged inside each of the anaerobic section 6, the anoxic section 7 and the high-efficiency denitrification tank 9, a second guide pipe connected with the ventilation pipe 17 and the aeration disc 22 is arranged inside each of the MBBR sections, and an electromagnetic valve 18 is arranged on each of the first guide pipe and the second guide pipe.
In this embodiment, be connected with row mud pipeline 25 between pipe chute sedimentation tank 10 and the sludge impoundment 12, be equipped with the ball valve on arranging mud pipeline 25, one side that sludge impoundment 12 was kept away from to the ball valve is equipped with the motorised valve of installing on arranging mud pipeline 25.
The working principle is that firstly, the main body of the device is A2/O-MBBR-N (anaerobic zone, anoxic zone, aerobic zone and high-efficiency denitrification zone), which is an in-depth improvement and optimization for the A2/O-MBBR process.
Domestic sewage is collected by a collecting pipe network and discharged into a sewage grid channel 1, a coarse grid and a fine grid are arranged in the grid channel 1 to remove large-particle impurities, the sewage automatically flows into an adjusting tank 3, and the quality and the quantity of the sewage are homogenized in the adjusting tank 3. After the sewage is fully regulated and stabilized in the regulating tank 3, the sewage is lifted to an integrated sewage purification device which is dominated by the A2/O-MBBR-N process through a lift pump for decomposition treatment of the sewage.
After the domestic sewage is lifted and pumped into the anaerobic section 6, the organic pollutants with macromolecules are decomposed into micromolecular organic matters, methane, CO2 and other substances through anaerobic activated sludge in the anaerobic section 6, then the organic matters automatically flow into the anoxic section 7, part of the organic matters are decomposed through facultative bacteria in the anoxic section 7, then the effluent automatically flows into the MBBR tank 8 filled with the suspended filler 23, and the organic matters in the sewage are further decomposed into CO2, water and the like through aerobic bacteria attached to and growing on the suspended filler 23. Meanwhile, nitrogen-containing substances in the sewage are nitrified, the effluent is subjected to solid-liquid separation and denitrification through the high-efficiency denitrification tank 9, the effluent is subjected to free suspended matter separation through the inclined tube sedimentation tank 10, and the effluent is subjected to disinfection treatment through the ultraviolet disinfector 14, so that the effluent reaches the first-class A standard of discharge Standard of pollutants for municipal wastewater treatment plants (GB18919-2002) and is discharged or recycled.
Wherein, the nitrified liquid flows back to the anoxic tank through the low gas consumption stripping reflux device 26 to be subjected to partial denitrification and denitrogenation, and finally the removal of nitrogen is ensured through the secondary denitrification treatment of the high-efficiency denitrification tank 9. Meanwhile, the sludge is refluxed to the anaerobic section 6 in the high-efficiency denitrification tank 9, so that the active sludge with low domestic sewage concentration is prevented from escaping in a large amount, and the demand of the active sludge in a process system is ensured. Free activated sludge in the supernatant effluent is subjected to solid-liquid separation in the inclined-tube sedimentation tank 10, so that the content of suspended matters in the effluent is ensured.
Sludge in the inclined tube sedimentation tank 10 is periodically discharged to a sludge tank 12, sludge in the sludge tank 12 is periodically transported or dried, and supernatant overflows into the regulating tank 3 for retreatment so as to ensure that the sewage reaches the standard and is discharged.
Case one:
the effluent of the integrated sewage purification equipment installed in the domestic sewage treatment project (30T/d) of the Yunnan Yunsfan nonferrous metals complex company Limited of the invention, which is provided with the A2/O-MBBR-N sewage treatment process, stably reaches the first-class A standard of discharge Standard of municipal Sewage treatment plant (GB 18918-2002).
Case two:
the effluent of the integrated sewage purification equipment installed in the sewage treatment project (60T/d) of Dongcun, Yun nan Yingjiang county, which is disclosed by the invention, of the A2/O-MBBR-N sewage treatment process stably reaches the first-level A standard of discharge Standard of municipal Sewage treatment plant (GB 18918-2002).
Case three:
the effluent of the integrated sewage purification equipment which is provided with the A2/O-MBBR-N sewage treatment process in the wastewater treatment project of seizura in Guannan county of Yunnan province (100T/d) stably reaches the first-class A standard of discharge Standard of municipal Sewage treatment plant (GB 18918-2002).
Case four:
the effluent of the integrated sewage purification equipment installed in the sewage treatment project (30T/d) of the farm of the chapter-phoenix pharmaceutical factory in Longchuan county of the invention, which is the A2/O-MBBR-N sewage treatment process, stably reaches the intensified livestock and poultry breeding water pollution emission limit value in livestock and poultry breeding pollutant emission standard (GB 18596-2001).
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. Integrated sewage purification equipment comprises a grid channel (1) and is characterized in that a regulating tank (3) is arranged on the right side of the grid channel (1), an anaerobic section (6) is arranged on the right side of the regulating tank (3), a detachable filler component (21) is arranged inside the anaerobic section (6), an anoxic section (7) is arranged on one side, far away from the regulating tank (3), of the anaerobic section (6), an MBBR section (8) is arranged on one side, far away from the anaerobic section (6), of the anoxic section (7), a low-gas-consumption stripping reflux device (26) is arranged inside the MBBR section, a high-efficiency denitrification tank (9) is arranged on one side, far away from the anoxic section (7), of the MBBR section (8), a low-gas-consumption stripping reflux device (26) is also arranged inside the high-efficiency denitrification tank (9), an inclined tube sedimentation tank (10) is arranged on one side, far away from the MBBR section (8), of the high-efficiency denitrification tank (9), one side that high-efficient denitrogenation pond (9) was kept away from in pipe chute sedimentation tank (10) is equipped with equipment room (11), the right side of equipment room (11) is equipped with discharge tank (13), one side of pipe chute sedimentation tank (10) is connected with sludge impoundment (12).
2. The integrated sewage purification device according to claim 1, wherein the high efficiency denitrification tank (9) comprises a first two-phase separator (901), a stripping main pipe (902), a central water distribution pipe (903), a water return baffle (904), a stripping air supply pipe (905), a sludge return water inlet pipe (906), a water outlet weir groove (907) and a water inlet pipe (908), the stripping main pipe (902) is connected to the bottom of the first two-phase separator (901), the central water distribution pipe (903) is sleeved outside the stripping main pipe (902), the water return baffle (904) is fixedly connected to the bottom end of the central water distribution pipe (903), the stripping air supply pipe (905) is arranged below the water return baffle (904), one end of the stripping air supply pipe (905) is connected to the sludge return water inlet pipe (906), the water outlet groove (907) is arranged on the left side of the stripping main pipe (902), one side of the central water distribution pipe (903) far away from the water outlet weir notch (907) is connected with a water inlet pipe (908).
3. The integrated sewage purification device according to claim 1, wherein the detachable packing assembly (21) comprises a device main body (211), three-dimensional elastic packing (212), an upper packing fixing support (213), a lower packing fixing support (214) and packing assembly pillars (215), two three-dimensional elastic packing (212) are arranged inside the device main body (211), the top of the three-dimensional elastic packing (212) is connected with the upper packing fixing support (213), the bottom of the three-dimensional elastic packing (212) is connected with the lower packing fixing support (214), and the packing assembly pillars (215) are arranged at four corners of the upper packing fixing support (213) and the lower packing fixing support (214).
4. The integrated sewage purification device according to claim 1, wherein the low gas consumption stripping reflux unit (26) comprises a second two-phase separator (261), a reflux pipe (262), a two-phase separator inlet pipe (263), a stripping gas supply pipe (264) and a reflux liquid inlet pipe (265), the reflux pipe (262) is connected to one side of the second two-phase separator (261), the two-phase separator inlet pipe (263) is connected to the bottom of the second two-phase separator (261), the stripping gas supply pipe (264) is fixedly connected to the left side of the bottom of the two-phase separator inlet pipe (263), and the reflux liquid inlet pipe (265) is fixedly connected to the bottom of the two-phase separator inlet pipe (263).
5. The integrated sewage purification device according to claim 1, wherein a sewage inlet pipe (2) is connected between the grid channel (1) and the adjusting tank (2), a lift pump is arranged in the adjusting tank (3), a sewage inlet pipe (2) is also arranged between the adjusting tank (2) and the anaerobic section (6), a check valve (4) and a temperature sensor (5) are installed on the sewage inlet pipe (2) between the adjusting tank (2) and the anaerobic section (6), the check valve (4) is close to the adjusting tank (3), and the temperature sensor (5) is close to the anaerobic section (6).
6. The integrated sewage purification apparatus according to claim 1, wherein the MBBR section (8) is internally provided with a plurality of level adjusters (24), the top end of the horizontal regulator (24) is connected with an aeration disc (22), the MBBR section (8) is internally provided with suspended fillers (23) with the volume of 20 percent, the low-gas-consumption stripping reflux device (26) positioned in the MBBR section (8) is connected with a nitrifying liquid reflux pipe (20), and one end of the nitrifying liquid return pipe (20) far away from the low-gas-consumption stripping reflux device (26) extends into the anoxic section (7), the low-gas-consumption stripping reflux device (26) positioned in the high-efficiency denitrification tank (9) is connected with a gas stripping sludge return pipe (19), one end of the stripped sludge return pipe (19) far away from the low gas consumption stripped return device (26) extends into the anaerobic section (6).
7. The integrated sewage purification device according to claim 1, wherein the device room (11) comprises an ultraviolet sterilizer (14), a central control cabinet (15) and a rotary fan (16), the central control cabinet (15) is arranged above the ultraviolet sterilizer (14), the rotary fan (16) is arranged above the central control cabinet (15), a vent pipe (17) is connected to the rotary fan (16), the anaerobic section (6), the anoxic section (7) and the efficient denitrification tank (9) are all provided with a first conduit connected with the vent pipe (17), a second conduit connected with the vent pipe (17) and the aeration disc (22) is arranged inside the MBBR section, and the first conduit and the second conduit are both provided with electromagnetic valves (18).
8. The integrated sewage purification equipment according to claim 1, wherein a sludge discharge pipeline (25) is connected between the inclined tube sedimentation tank (10) and the sludge tank (12), a ball valve is arranged on the sludge discharge pipeline (25), and an electric valve arranged on the sludge discharge pipeline (25) is arranged on one side of the ball valve, which is far away from the sludge tank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911105604.1A CN110668659A (en) | 2019-11-13 | 2019-11-13 | Integrated sewage purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911105604.1A CN110668659A (en) | 2019-11-13 | 2019-11-13 | Integrated sewage purification equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110668659A true CN110668659A (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911105604.1A Pending CN110668659A (en) | 2019-11-13 | 2019-11-13 | Integrated sewage purification equipment |
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| CN (1) | CN110668659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112429920A (en) * | 2020-12-02 | 2021-03-02 | 云南妙拓环保科技有限公司 | Sewage treatment method based on MUASB anaerobic reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112429920A (en) * | 2020-12-02 | 2021-03-02 | 云南妙拓环保科技有限公司 | Sewage treatment method based on MUASB anaerobic reactor |
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