CN108314254A - A kind of town domestic sewage reflow treatment device - Google Patents
A kind of town domestic sewage reflow treatment device Download PDFInfo
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- CN108314254A CN108314254A CN201711474501.3A CN201711474501A CN108314254A CN 108314254 A CN108314254 A CN 108314254A CN 201711474501 A CN201711474501 A CN 201711474501A CN 108314254 A CN108314254 A CN 108314254A
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- 239000010865 sewage Substances 0.000 title claims abstract description 75
- 239000010802 sludge Substances 0.000 claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000005189 flocculation Methods 0.000 claims abstract description 13
- 230000016615 flocculation Effects 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 238000005273 aeration Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 230000002262 irrigation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 12
- 229910052698 phosphorus Inorganic materials 0.000 description 12
- 239000011574 phosphorus Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 9
- 229920000388 Polyphosphate Polymers 0.000 description 8
- 239000001205 polyphosphate Substances 0.000 description 8
- 235000011176 polyphosphates Nutrition 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 7
- 229920000037 Polyproline Polymers 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 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 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006396 nitration reaction Methods 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
- 238000001556 precipitation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
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)
Abstract
The invention discloses a kind of town domestic sewage reflow treatment devices,Including passing through the sequentially connected inlet valve well of pipeline,Regulating reservoir and distribution well,The denitrogenation dephosphorizing unit of the distribution well connection sanitary sewage,The denitrogenation dephosphorizing unit includes anoxic pond,Anaerobic pond and aerobic tank,The anoxic pond,Anaerobic pond and aerobic tank are sequentially connected by pipeline,The anoxic pond,Anaerobic pond and aerobic tank are divided into two groups of settings,The distribution well respectively enters anoxic pond by branch pipe,Anaerobic pond and aerobic tank,The sanitary sewage passes through anoxic pond,Enter inlet well after anaerobic pond and aerobic tank,Some enters nitrification liquid reflux well,Nitrification liquid promotion is back to anoxic pond front end by nitrification liquid return duct,Sanitary sewage enters secondary settling tank behind the contact flocculation pond,It is divided into two parts into secondary settling tank,A part enters sludge reflux well,Another part sanitary sewage enters wet well.The present invention solves that town sewage is backward in technique, the low problem of wastewater treatment rate.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of town domestic sewage reflow treatment device.
Background technology
Water is Source of life, is indispensable basic, the theme that the United Nations develops 10 years 2005~2015 years of all things on earth
It is set to " water of life ", payes attention to water environment, be related to the progress and development of the entire mankind.Since reform and opening-up, China has occurred
Earth-shaking variation, economical flourishing development, national soft power Hard Power upwards obtain the approval in the world.With national economy
Good and fast development, environmental problem increasingly emerge, and become an important factor for restricting China's economic development, and " water environment is dirty
Dye ", the appearance repeatedly of " water crisis " these wordings, let us recognizes water pollution just at one's side, very important, can not neglect
Slightly.
China's urbanization worlds scale Yi Pai forefront, Development of China's Urbanization are accelerated, and population, industry increase, sanitary sewage, production
Wastewater flow rate increases, but since Small Urban economic level lags, cash-starved, municipal auxiliary facility is weak, can not apply mechanically big
The sewage disposal technology in middle city causes Small Urban sewage disposal technology to fall behind, and wastewater treatment rate is low, can not be with city dirt
Water process rate flushes.This leads to the processing of China's Small Town Wastewater, and there are problems：Disparate development, part treatment facility ability
Idle, pollutant fluxes efficiency is in urgent need to be improved, and sludge secondary pollution is serious.
Invention content
The purpose of the present invention is to provide a kind of town domestic sewage reflow treatment devices, solve town sewage technology and fall
Afterwards, wastewater treatment rate it is low the problem of.
To achieve the above object, the present invention provides the following technical solutions：
A kind of town domestic sewage reflow treatment device, including pass through the sequentially connected inlet valve well of pipeline, regulating reservoir
And distribution well, sanitary sewage enter inlet valve well by town domestic sewage pipeline, thick lattice are equipped in the inlet valve well
Grid, the coarse rack are that subsequent processing units mitigate workload as pretreatment unit；Sanitary sewage enters inlet valve well warp
Sanitary sewage is promoted in regulating reservoir by lift pump room work unit acting after simple process, two groups are equipped in the regulating reservoir
Fine fack, two groups of fine facks are arranged in parallel, sanitary sewage be further processed in regulating reservoir after by its own gravity send to
Distribution well；The denitrogenation dephosphorizing unit of the distribution well connection sanitary sewage, the denitrogenation dephosphorizing unit includes anoxic pond, anaerobic pond
And aerobic tank, the anoxic pond, anaerobic pond and aerobic tank are sequentially connected by pipeline, the anoxic pond, anaerobic pond and aerobic tank
It is divided into two groups of settings, the distribution well respectively enters anoxic pond, anaerobic pond and aerobic tank by branch pipe, and the sanitary sewage passes through
Enter inlet well after anoxic pond, anaerobic pond and aerobic tank, some enters nitrification liquid reflux well, passes through nitrification liquid return duct
Nitrification liquid promotion is back to anoxic pond front end, the anoxic pond that enters synchronous with water inlet carries out denitrification denitrogenation；It is treated
Sanitary sewage is sent by inlet well to contact flocculation pond, and the contact flocculation pond is connected with medicine machine；Described in sanitary sewage passes through
Enter secondary settling tank behind contact flocculation pond, into the two parts that are divided into of secondary settling tank, a part enters sludge reflux well, the life of this part
Sludge in sewage enters mud storage pool and carries out Treatment of Sludge, and sewage is back to anoxic pond front end through reflux sludge tube；Another part
Sanitary sewage enters wet well, and disinfecting tank is entered after filtering, and the water after disinfection reaches recycle water standard, reuse
Water enters reuse pool, is pumped at processing water reuse through reuse pump house working group.
Preferably, agitating device is all provided in the anoxic pond, anaerobic pond and aerobic tank, the agitating device includes stirring
Axis and stirrer paddle.
Preferably, the aerobic tank is connected with aerating system, and the aerating system includes aeration tank body, stuffing box, water inlet
Mouth, water outlet, air pressurization pump, the stuffing box are connected with aeration tank body by filler pipeline, are added in the stuffing box
Activated sludge, in aeration tank base, the water inlet is arranged on the top of aeration tank body, described for air pressurization pump setting
Water outlet is arranged in the bottom of aeration tank body, is connected with the water inlet line of aerobic tank by water pump.
Preferably, ammonia nitrogen on-line determination device and pH value on-line determination device are installed in the aerobic tank, it is described aerobic
Pond is also connected with a lye tank (vat), the water inlet line of the aerobic tank and into being equipped with solenoid valve in alkali lye pipeline, the aerobic tank
Water inlet line is laid on aerobic tank bottom.
Preferably, the coarse rack arrangement is arranged in the water outlet channel of inlet valve well, and the gap of the coarse rack is
20mm, the coarse rack material are stainless steel.
Preferably, the fine fack arrangement is arranged in the irrigation channel of regulating reservoir, and the fine fack is circulating tooth harrow
The backlash of grid sewage-removing machine, the fine fack is 3.0mm.
Compared with prior art, beneficial effects of the present invention are as follows：
1, returned sludge of the present invention has " population effect ", all participates in releasing phosphorus and inhales phosphorus process, polyP bacteria is in anaerobism item
The suction phosphorus power formed under part is not fully exerted in aerobic tank, is beneficial to dephosphorization.
2, each sectoring function of the present invention is clear, and harmony is good.
3, present invention process flow is succinct, the continuous flow method of operation so that easy to operate, operating cost is low.
4, the present invention has the effect of improving and be removed to biological organism difficult to degrade, and operational effect is stablized, and consumes medicament part
Amount is few.
5, excess sludge of the present invention is few, and sludge settling property is good, is easily dehydrated, and der Pilz will not mass propagation, it is not easy to draw
Play sludge bulking.
6, the present invention is due to its integraty and cyclicity, can dilution for many times high concentration organic sewage, capacity of resisting impact load
By force.
Description of the drawings
Fig. 1 is the structural schematic diagram of denitrogenation dephosphorizing unit of the present invention；
Fig. 2 is the whole structural schematic diagram of the present invention；
Fig. 3 is the partially connected architecture schematic diagram of aerobic tank of the present invention；
Fig. 4 is the whole logical construction schematic diagram of the present invention.
In figure：1, inlet valve well；11, coarse rack；2, regulating reservoir；21, fine fack；3, distribution well；4, denitrogenation dephosphorizing list
Member；41, anoxic pond；42, anaerobic pond；43, aerobic tank；431, ammonia nitrogen on-line determination device；432, pH value on-line determination device；
433, lye tank (vat)；434, water inlet line；435, into alkali lye pipeline；44, nitrification liquid reflux well；45, agitating device；46, aeration system
System；461, it is aerated tank body；462, stuffing box；463, water inlet；464, water outlet；465, air pressurization pump；5, inlet well；6, it connects
Touch flocculation basin；61, medicine machine；7, secondary settling tank；8, sludge reflux well；81, mud storage pool；9, wet well.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1 is done a kind of town domestic sewage reflow treatment device of the present invention in conjunction with Fig. 1 and Fig. 2 further detailed
It describes in detail bright：
A kind of town domestic sewage reflow treatment device, including pass through the sequentially connected inlet valve well 1 of pipeline, regulating reservoir
2 and distribution well 3, sanitary sewage inlet valve well 1 is entered by town domestic sewage pipeline, is equipped in the inlet valve well 1
Coarse rack 11, the coarse rack 11 are that subsequent processing units mitigate workload as pretreatment unit；Sanitary sewage enters water inlet
Sanitary sewage is promoted in regulating reservoir 2 after simple process by lift pump room work unit acting by valve well, the regulating reservoir 2
Two groups of fine facks 21 are inside equipped with, two groups of fine facks 21 are arranged in parallel, and sanitary sewage leads to after being further processed in regulating reservoir 2
Its own gravity is crossed to send to distribution well 3；The distribution well 3 connects the denitrogenation dephosphorizing unit 4 of sanitary sewage, the denitrogenation dephosphorizing unit
4 include anoxic pond 41, anaerobic pond 42 and aerobic tank 43, the anoxic pond 41, anaerobic pond 42 and aerobic tank 43 by pipeline successively
Connection, the anoxic pond 41, anaerobic pond 42 and aerobic tank 43 are divided to for two groups of settings, and the distribution well 3 is respectively enterd by branch pipe
The anoxic pond 41, anaerobic pond 42 and aerobic tank 43, the sanitary sewage pass through the anoxic pond 41, anaerobic pond 42 and aerobic tank
Enter inlet well 5 after 43, some enters nitrification liquid reflux well 44, nitrification liquid is promoted by nitrification liquid return duct and flowed back
To 41 front end of anoxic pond, the anoxic pond 41 that enters synchronous with water inlet carries out denitrification denitrogenation；The treated sanitary sewage by into
Well 5 is sent to contact flocculation pond 6, and the contact flocculation pond 6 is connected with medicine machine 61；Sanitary sewage passes through the contact flocculation
Enter secondary settling tank 7 behind pond 6, into the two parts that are divided into of secondary settling tank 7, a part enters sludge reflux well 8, this part sanitary sewage
In sludge enter mud storage pool 81 and carry out Treatment of Sludge, sewage is back to 41 front end of anoxic pond through reflux sludge tube；Another part
Sanitary sewage enters wet well 9, and disinfecting tank is entered after filtering, and the water after disinfection reaches recycle water standard, returns
Enter reuse pool with water, is pumped at processing water reuse through reuse pump house working group.
Embodiment 2, the nitrification liquid reflux well 44 are back to anoxic in the ratio of sanitary sewage in aerobic tank 50~100%
41 front end of pond is to improve system nitric efficiency.
Agitating device 45 is all provided in the anoxic pond 41, anaerobic pond 42 and aerobic tank 43, the agitating device 45 includes
Agitating shaft and stirrer paddle.
The aerobic tank 43 is connected with aerating system 46, the aerating system 46 include aeration tank body 461, stuffing box 462,
Water inlet 463, water outlet 464, air pressurization pump 465, the stuffing box 462 are connected by filler pipeline with aeration tank body 461,
Activated sludge is added in the stuffing box 462, the setting of the air pressurization pump 465 is in 461 bottom of aeration tank body, the water inlet
Mouthfuls 463 are arranged on the top of aeration tank body 461, and the water outlet 464 is arranged in the bottom of aeration tank body 461, by water pump with
The water inlet line 434 of aerobic tank is connected.Sludge in the stuffing box 462 is added by filler pipeline in aeration tank body 461, institute
It states the setting of air pressurization pump 465 and increases aeration tank body 461 by air pump to aeration tank body 461 in 461 bottom of aeration tank body
The oxygen content of interior sewage, microorganism present in activated sludge is in the sewage of rich oxygen content, with the organic matter contained in sewage
It is reacted, microorganism is made to breed rapidly, increase micro organism quantity.
Embodiment 3 is equipped with ammonia nitrogen on-line determination device 431 and pH value on-line determination in conjunction with Fig. 3 in the aerobic tank 43
Device 432, the aerobic tank 43 are also connected with a lye tank (vat) 433, the water inlet line 434 of the aerobic tank 43 and into alkali lye pipeline
Solenoid valve is equipped on 435, the water inlet line 434 of the aerobic tank is laid on 43 bottom of aerobic tank.Pacify in the aerobic tank 43
The ammonia nitrogen on-line determination device 431 of dress is used to control the opening and closing of 43 water inlet line of aerobic tank, 434 solenoid valve, when aerobic
434 solenoid valve of aerobic tank water inlet line is opened when the ammonia nitrogen value of sanitary sewage is less than the lower limit of setting value in pond 43, works as aerobic tank
434 solenoid valve of aerobic tank water inlet line is closed when the ammonia nitrogen value of sanitary sewage is higher than the upper limit of setting value in 43；The aerobic tank
The pH value on-line determination device 432 installed in 43 is used to control opening and closing of the aerobic tank into 435 solenoid valve of alkali lye pipeline,
When the pH value of sanitary sewage in aerobic tank is less than the lower limit of setting value, aerobic tank is opened into 435 solenoid valve of alkali lye pipeline, by alkali
Lye in liquid bath 433 is pumped into aerobic tank 43 to ensure the pH value of sanitary sewage in aerobic tank 43 in suitable range, when
Aerobic tank is closed into 435 solenoid valve of alkali lye pipeline when the pH value of sanitary sewage is higher than the upper limit of setting value in aerobic tank 43；It is described
Comprising one or more of carbonate or bicarbonate in the ingredient of lye, and the concentration of bicarbonate ion meter is not less than 10 millis
Grams per liter.
The arrangement of the coarse rack 11 is arranged in the water outlet channel of inlet valve well 1, and the specification of the coarse rack 11 is
SBD600 type coarse racks, gap 20mm, main motor current 0.75~1.1k W turn brush motor power 0.25KW, the coarse rack
11 materials are stainless steel.The effect of the coarse rack 11 is that those volumes are larger in retention sewage, and the floating substance of suspension is made
Include the substances such as clast, paper scrap, block by retention for pretreatment unit, mitigates workload for subsequent processing units, reduce
Load.
The arrangement of the fine fack 21 is arranged in the irrigation channel of regulating reservoir 2, and the specification of the fine fack 21 is XQ0.4 types
The width of the channel of circulating tooth harrow grid sewage-removing machine, the fine fack 21 is 0.4m, and canal depth is 2.85m, backlash 3.0mm.
The lift pump room work unit is 3 proof submersible sand discharging pumps.
The size of the regulating reservoir 2 is H=7800 × 7800 Lx Bx × 3500mm, floor space 67.24m2, effective water
Depth is 3.3m, dischargeable capacity 200m3。
The present invention is substantially the organic assembling of anoxia/aerobic biological denitrification+two kinds of processes of aerobic/anaerobic biological phosphate-eliminating.
In three ponds, different chemical reactions occurs respectively to complete the function of denitrogenation dephosphorizing.
In anoxic pond 41, the denitrification process of denitrogenation dephosphorizing is completed.By the transport of pump, we will largely contain nitrate
(NO3) sanitary sewage be sent to anoxic pond 41, under anoxic conditions, denitrifying bacteria is by nitrate (NO3) it is converted into nitrogen
(N2) it is discharged to aerial, while degradation of organic substances, during this, NH3-N concentration declines, and plays denitrification, sufficient carbon source (nothing
Machine compound) for the reaction provide required energy.It recent studies have shown that, it can be with dephosphorization, denitrification phosphorus-collecting in anoxic pond
Bacterium (DNPAO) can utilize O2Or nitrate nitrogen (NO3) as electron acceptor suction phosphorus being carried out, this process saves carbon source, and one
Determine to alleviate substrate competition contradiction in degree, and improves the efficiency of denitrogenation dephosphorizing to a certain extent.
In anaerobic pond 42, the release process of phosphorus is completed.Due to the obligate aerobic of polyP bacteria, under anaerobic, poly- phosphorus
Bacterium can be suppressed, and internal polyphosphate be decomposed, with phosphate (PO43-) form release, and generate a large amount of energy
Amount maintains the normal metabolic activity of polyP bacteria under anaerobic, and at the same time, zymophyte is by some macromoleculars in sewage
For organic matter degradation at small molecule tunning, polyP bacteria quickly absorbs the organic product for these small molecules of degrading by energy, and
It is translated into PHB to be stored in thalline, after the completion of this process, the concentration of phosphorus reaches highest, NH3- N concentration reduces.
In aerobic tank 43, completes nitration reaction and inhale phosphorus process.Under aerobic condition, nitrobacteria will be organic in organic matter
Nitrogen is first converted to ammonia nitrogen (NH3- N), it is eventually converted into nitrate nitrogen (NO3), reaction process requires under low sludge loading.Meanwhile
The PHB stored in polyP bacteria decomposer body generates energy and completes metabolism, and the phosphate (PO4 in excessive consumption sewage3-)
It synthesizes polyphosphate and other organic substances, is stored again in thalline, finally formed sludge is that high-density phosphorus is dirty
Mud is discharged with excess sludge, to achieve the purpose that dephosphorization.
In terms of present invention process arrangement
In traditional activated sludge process, primary sedimentation tank is indispensable important component, in removal sewage
BOD, organic loading and SS play an important role.However, with sewage eutrophication getting worse, design focuses on height
Effect goes to denitrogenate, phosphorus while other organic pollutions are removed.The case where raw water quality, COD/TKN determine that technique is selected
It selects, the ratio of COD/TKN, COD/TP determine the quality of outlet effect, and typically ratio is higher, go to denitrogenate N, phosphorus P effects are got over
It is good.Cancel primary sedimentation tank so that 25% or so the BOD that should be deposited originally is retained, and is carried for the reaction of follow-up denitrogenation dephosphorizing
More sufficient carbon source has been supplied, has excessively inhaled phosphorus conducive to polyP bacteria in denitrification denitrogenation in anoxic pond 41 and aerobic tank 43.
In preferred implementation, suitably increase other structures between aerobic tank 43 and secondary settling tank 7 according to actual needs
It is preferably discharged to reach, meets higher standard.For example, in the present embodiment, we add between aerobic tank 43 and secondary settling tank 7
Contact flocculation pond 6 (perforation rotational flow flocculation tank) is entered, the contact using flocculant with fine suspension promotes the heavy of suspended matter
It forms sediment, is conducive to the precipitation and mud-water separation of substance in secondary sedimentation tank later.For secondary settling tank 7, what which selected is that inclined tube is heavy
Shallow lake pond has high-efficiency sedimentation performance.Inclined-tube sedimentation tank utilizes shallow layer settling theoretical principle, increases reaction tank contact area, is flowing
In the case that amount is certain, reduce depth of water H and sedimentation time, to reduce reaction pool volume.Inclined-tube sedimentation tank advantage is
Deposition efficiency is high, generation sludge settling property is good, sludge quantity is few, and engineering cost is low.
Finally it should be noted that：The foregoing is merely the preferred embodiments of the present invention, are not intended to restrict the invention, to the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, for those skilled in the art, still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the present invention
Within the scope of shield.
Claims (6)
1. a kind of town domestic sewage reflow treatment device, including pass through the sequentially connected inlet valve well (1) of pipeline, regulating reservoir
(2) and distribution well (3), it is characterised in that：Sanitary sewage enters inlet valve well (1) by town domestic sewage pipeline, described
Coarse rack (11) is equipped in inlet valve well (1), the coarse rack (11) mitigates as pretreatment unit for subsequent processing units
Workload；Sanitary sewage enters inlet valve well and is promoted sanitary sewage by lift pump room work unit acting after simple process
In to regulating reservoir (2), two groups of fine facks (21) are equipped in the regulating reservoir (2), two groups of fine facks (21) are arranged in parallel, raw
Sewage living is sent by its own gravity to distribution well (3) after being further processed in regulating reservoir (2)；Distribution well (3) the connection life
The denitrogenation dephosphorizing unit (4) of sewage living, the denitrogenation dephosphorizing unit (4) includes anoxic pond (41), anaerobic pond (42) and aerobic tank
(43), the anoxic pond (41), anaerobic pond (42) and aerobic tank (43) are sequentially connected by pipeline, and the anoxic pond (41) is detested
Oxygen pond (42) and aerobic tank (43) are divided into two groups of settings, the distribution well (3) by branch pipe respectively enter the anoxic pond (41),
Anaerobic pond (42) and aerobic tank (43), the sanitary sewage pass through the anoxic pond (41), anaerobic pond (42) and aerobic tank (43)
Enter inlet well (5) afterwards, some enters nitrification liquid reflux well (44), nitrification liquid is promoted back by nitrification liquid return duct
It is flow to anoxic pond (41) front end, the anoxic pond (41) that enters synchronous with water inlet carries out denitrification denitrogenation；The treated life is dirty
Water is sent by inlet well (5) to contact flocculation pond (6), and the contact flocculation pond (6) is connected with medicine machine (61)；Sanitary sewage passes through
It crosses the contact flocculation pond (6) and enters secondary settling tank (7) afterwards, into the two parts that are divided into of secondary settling tank (7), a part is returned into sludge
Well (8) is flowed, the sludge in this part sanitary sewage enters mud storage pool (81) and carries out Treatment of Sludge, and sewage flows back through reflux sludge tube
To anoxic pond (41) front end；Another part sanitary sewage enters wet well (9), and disinfecting tank is entered after filtering, passes through
Water after disinfection reaches recycle water standard, and recycle-water enters reuse pool, and being pumped into processing water through reuse pump house working group returns
Use.
2. a kind of town domestic sewage reflow treatment device according to claim 1, it is characterised in that：The anoxic pond
(41), be all provided with agitating device (45) in anaerobic pond (42) and aerobic tank (43), the agitating device (45) include agitating shaft and
Stirrer paddle.
3. a kind of town domestic sewage reflow treatment device according to claim 1, it is characterised in that：The aerobic tank
(43) it is connected with aerating system (46), the aerating system (46) includes aeration tank body (461), stuffing box (462), water inlet
(463), water outlet (464), air pressurization pump (465), the stuffing box (462) pass through filler pipeline and aeration tank body (461)
It is connected, activated sludge is added in the stuffing box (462), air pressurization pump (465) setting is at aeration tank body (461) bottom
Portion, water inlet (463) setting is on the top of aeration tank body (461), and water outlet (464) setting is in aeration tank body
(461) bottom is connected by water pump with the water inlet line (434) of aerobic tank.
4. a kind of town domestic sewage reflow treatment device according to claim 1, it is characterised in that：The aerobic tank
(43) ammonia nitrogen on-line determination device (431) and pH value on-line determination device (432) are installed, the aerobic tank (43) is also connected in
One lye tank (vat) (433), the water inlet line (434) of the aerobic tank (43) and into being equipped with solenoid valve in alkali lye pipeline (435), institute
The water inlet line (434) for stating aerobic tank is laid on aerobic tank (43) bottom.
5. a kind of town domestic sewage reflow treatment device according to claim 1, it is characterised in that：The coarse rack
(11) arrangement is arranged in the water outlet channel of inlet valve well (1), and the gap of the coarse rack (11) is 20mm, the coarse rack
(11) material is stainless steel.
6. a kind of town domestic sewage reflow treatment device according to claim 1, it is characterised in that：The fine fack
(21) arrangement is arranged in the irrigation channel of regulating reservoir (2), and the fine fack (21) is circulating tooth harrow grid sewage-removing machine, described
The backlash of fine fack (21) is 3.0mm.
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| CN201711474501.3A CN108314254A (en) | 2018-03-15 | 2018-03-15 | A kind of town domestic sewage reflow treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679051A (en) * | 2021-01-12 | 2021-04-20 | 王一珍 | Efficient sewage treatment method |
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Application publication date: 20180724 |