CN111099795B - Sewage treatment equipment - Google Patents
Sewage treatment equipment Download PDFInfo
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- CN111099795B CN111099795B CN202010086454.0A CN202010086454A CN111099795B CN 111099795 B CN111099795 B CN 111099795B CN 202010086454 A CN202010086454 A CN 202010086454A CN 111099795 B CN111099795 B CN 111099795B
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- sewage
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- pipe group
- way valve
- reaction tank
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- 239000010865 sewage Substances 0.000 title claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000006243 chemical reaction Methods 0.000 claims abstract description 86
- 230000001105 regulatory effect Effects 0.000 claims abstract description 38
- 238000005273 aeration Methods 0.000 claims abstract description 32
- 239000010802 sludge Substances 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 11
- 238000005276 aerator Methods 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 9
- 230000002572 peristaltic effect Effects 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 13
- 230000001276 controlling effect Effects 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000000813 microbial effect Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 9
- 229910052698 phosphorus Inorganic materials 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 244000005700 microbiome Species 0.000 description 7
- 230000001877 deodorizing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011499 joint compound Substances 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 239000007787 solid Substances 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 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003933 environmental pollution control Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003827 upregulation Effects 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
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- 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
- C02F2303/02—Odour removal or prevention of malodour
-
- 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
-
- 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
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 relates to sewage treatment equipment, which comprises an adjusting tank, an SBR reaction tank, a connecting pipeline and a regulating and controlling device, wherein the adjusting tank is used for accommodating sewage, the adjusting tank is connected with the SBR reaction tank through the connecting pipeline, the regulating and controlling device comprises a detection component, an aeration component and a dosing component, the detection component is arranged on the adjusting tank and the SBR reaction tank, the aeration component and the dosing component are connected with the SBR reaction tank, the SBR reaction tank receives the sewage in the adjusting tank and carries out purification treatment on the sewage, and the treated water and sludge are discharged through the connecting pipeline. By arranging the regulating and controlling device, sewage in the sewage purification process is detected, and parameters such as aeration, standing, drainage, recovery, dosing and the like of the SBR reaction tank are regulated according to detection results, so that the optimal state of a microbial system is maintained and achieved, and the aims of reducing energy consumption and improving treatment efficiency are fulfilled.
Description
Technical Field
The invention relates to the technical field of environmental protection equipment, in particular to sewage treatment equipment.
Background
The prevention and control of water pollution is an important component in the national environmental pollution control, and the undertakers have great lives in improving the environmental pollution condition. The water environment pollution treating technology mainly comprises a physical treatment technology, a chemical treatment technology, a biological treatment technology and the like, and combines the characteristics of different sewage, pollutant components and the like to treat the sewage by adopting corresponding single or combined treatment methods so that the sewage reaches the standard of safe discharge. The biological treatment technology is a common and widely used sewage treatment method, utilizes microorganisms to decompose organic matters in water, and has the characteristics of low running cost, simple operation management, wide application range and obvious treatment effect.
Especially for rural domestic sewage treatment, because living areas are scattered, the traditional sewage treatment equipment has large construction cost per ton of water due to small tonnage, complete equipment and large construction cost per ton of water, so that the construction cost and the operation cost of the sewage treatment equipment are large, the equipment composition is complex, and the energy consumption is high. Meanwhile, because the concentration of organic matters in the sewage has the characteristic of large fluctuation, the control on the purification time and the microorganism quantity is difficult, and the cost control and the effluent quality control of sewage treatment are not facilitated.
Therefore, there is a need for a sewage treatment device that can reduce the consumption and energy of the device, and that can perform intelligent control according to the characteristics of sewage, effluent emission indexes, and the like, thereby reducing the cost of the device and ensuring the quality of effluent.
Disclosure of Invention
The invention aims to provide sewage treatment equipment which can detect sewage, intelligently control the sewage treatment process and has the characteristics of reducing purification cost and ensuring the quality of effluent.
To achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a sewage treatment device, including equalizing basin, SBR reaction tank, connecting line and regulation and control device, the equalizing basin is used for holding sewage, the equalizing basin with the SBR reaction tank passes through connecting line connects, regulation and control device includes detection component, aeration component and dosing module, the equalizing basin with all be equipped with on the SBR reaction tank detection component, aeration component with dosing module all with the SBR reaction tank is connected, the SBR reaction tank receives sewage in the equalizing basin and right sewage carries out purification treatment, and water and mud after the processing all pass through connecting line discharge.
Further, the detection assembly comprises a sampling detector, a peristaltic pump and a sampling tube connected with the peristaltic pump, and the regulating tank and the SBR reaction tank are both communicated with one sampling tube.
Further, the dosing assembly comprises a dosing pump, a dosing barrel and a dosing pipe, wherein the dosing pump is connected with the dosing barrel, and the dosing pump is connected with the SBR reaction tank through the dosing pipe.
Further, the aeration pipeline comprises an aerator, a fan and an aeration pipe, wherein the aerator is arranged in the SBR reaction tank, and the aerator is connected with the fan through the aeration pipe.
Further, the connecting pipeline comprises a lifting pump, a water inlet pipe group, a water outlet pipe group and a sewage drain pipe group, wherein the water inlet pipe group, the water outlet pipe group and the sewage drain pipe group are connected with the lifting pump, the regulating tank is communicated with the SBR reaction tank through the water inlet pipe group, and the sewage drain pipe group and the water outlet pipe group are both used for communicating the SBR reaction tank with the outside.
Further, the inlet end of the lifting pump is sequentially connected with a first inlet three-way valve and a second inlet three-way valve, the inlet end of the water inlet pipe group is connected with the first inlet three-way valve, the outlet pipe group and the inlet end of the sewage pipe group are both connected with the second inlet three-way valve, the outlet end of the lifting pump is sequentially connected with a first outlet three-way valve and a second outlet three-way valve, the outlet end of the water inlet pipe group is connected with the first outlet three-way valve, and the outlet end of the water outlet pipe group and the outlet end of the sewage pipe group are both connected with the second outlet three-way valve.
Further, the connecting pipeline further comprises a backwash tube group, the backwash tube group is provided with a third outlet three-way valve, the third outlet three-way valve is connected between the second outlet three-way valve and the outlet end of the water outlet tube group, the outlet end of the backwash tube group is connected with the third outlet three-way valve, and the inlet end of the water outlet tube group forms the inlet end of the backwash tube group.
Further, the connecting pipeline further comprises an inner circulating pipe group, the inlet end of the water outlet pipe group forms the inlet end of the inner circulating pipe group, and the outlet end of the water inlet pipe group forms the outlet end of the inner circulating pipe group.
Further, the regulation and control device further comprises an SV30 detector, wherein the SV30 detector is arranged on the inner circulation pipe group, and the SV30 detector extracts sewage from the inner circulation pipe group and detects the sludge sedimentation ratio of the sewage.
Further, the SBR reaction tank comprises two accommodating cavities arranged along the vertical direction, a partition board is arranged between the two accommodating cavities, and the accommodating cavities arranged on the lower side of the partition board form an adjusting tank.
Compared with the prior art, the invention has the beneficial effects that:
according to the sewage treatment equipment, the regulation and control device is arranged to detect sewage in the sewage purification process, and parameters such as aeration, standing, drainage, recovery, dosing and the like of the SBR reaction tank are regulated according to the detection result, so that the optimal state of a microbial system is maintained and achieved, and the purposes of reducing energy consumption and improving treatment efficiency are achieved.
Drawings
Fig. 1 is a block diagram of a sewage treatment apparatus according to an embodiment of the present invention.
Fig. 2 is a plan view of the sewage treatment apparatus according to the embodiment of the present invention.
FIG. 3 is a cross-sectional view of A-A of a sewage treatment apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a connecting pipeline according to an embodiment of the present invention.
In the figure:
1. an adjusting tank; 2. an SBR reaction tank; 21. a partition plate; 3. a connecting pipeline; 30. a lift pump; 31. a water inlet pipe group; 311. a first water inlet pipe; 312. a second water inlet pipe; 32. a water outlet pipe group; 321. a first water outlet pipe; 322. a second water outlet pipe; 33. a sewage drain pipe group; 331. a first drain pipe; 332. a second drain pipe; 34. a backwash tube group; 341. a backwashing pipe; 35. a first inlet three-way valve; 350. a pneumatic valve; 36. a second inlet three-way valve; 37. a first outlet three-way valve; 38. a second outlet three-way valve; 39. a third outlet three-way valve; 4. a dehydration device; 5. a deodorizing device; 6. a sterilizing device; 70. a detection assembly; 71. an aeration assembly; 72. a dosing assembly; 8. a decanter; 9. an air compressor; 10. a grating slag module; 11. and a water inlet.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.
As shown in fig. 1 to 4, the present embodiment provides a sewage treatment apparatus, including equalizing basin 1, SBR reaction basin 2, connecting line 3 and regulation and control device, equalizing basin 1 is used for holding sewage, equalizing basin 1 is connected through connecting line 3 with SBR reaction basin 2, regulation and control device includes detection component 70, aeration component 71 and dosing component 72, all be equipped with detection component 70 on equalizing basin 1 and SBR reaction basin 2, aeration component 71 and dosing component 72 all are connected with SBR reaction basin 2, SBR reaction basin 2 receives sewage in equalizing basin 1 and carries out purification treatment to sewage, water and mud after the treatment are discharged through connecting line 3. It is understood that the regulating tank 1 is used for accommodating sewage and has the regulating effect on indexes such as flow rate, water quantity and the like of the sewage. The SBR reaction tank 2 is used for containing sewage and activated sludge, and the sewage and the activated sludge are mixed in the SBR reaction tank 2, so that microorganisms in the activated sludge decompose organic matters in the sewage, and the effect of purifying the sewage is achieved. The detection component 70 is used for sampling and detecting the sewage in the regulating tank 1 and the SBR reaction tank 2, detecting the data such as the organic matter content, the sludge content and the like in the sewage, and controlling the aeration component 71 to perform aeration or controlling the dosing component 72 to perform dosing or increasing and decreasing the sewage purifying time according to the detection result, so that the microorganisms in the SBR reaction tank 2 maintain the balance state, reduce the energy consumption, improve the purifying efficiency and the like. For example: when water is fed, the sewage in the regulating tank 1 is detected by the detection component 70, and when the concentration of organic matters in the sewage is high, the aeration time can be prolonged so as to promote degradation. When the concentration of organic matters in the sewage is low, the aeration time can be reduced, and the dosing assembly 72 can be started to increase the carbon source, so that the aims of improving the purification efficiency and maintaining the microbial activity are fulfilled. When the wastewater is discharged, the detection component 70 detects the wastewater in the SBR reaction tank 2, and when the phosphorus in the wastewater exceeds the discharge standard, the dosing component 72 can be used for dosing the medicament so as to eliminate the phosphorus in the wastewater and further reach the discharge standard. According to the embodiment, the regulation and control device is arranged to detect sewage in the sewage purification process, and parameters such as aeration, standing, drainage, recovery, dosing and the like of the SBR reaction tank 2 are regulated according to the detection result, so that the optimal state of a microbial system is maintained and achieved, the energy consumption is reduced, and the treatment efficiency is improved.
Specifically, the regulating tank 1 is communicated with the water inlet 11, and sewage is discharged into the regulating tank 1 through the water inlet 11. A grating slag module 10 is arranged between the water inlet 11 and the regulating tank 1, and the grating slag module 10 is used for filtering solid impurities in sewage, so that the solid impurities are prevented from entering the connecting pipeline 3 to cause equipment blockage.
Specifically, the sewage treatment equipment further comprises a control module, wherein the control module is connected with the connecting pipeline 3 and the regulating and controlling device and is used for controlling the opening and closing of the valve, the starting and stopping of the lifting pump 30, the dosing pump and the peristaltic pump, and automatic control of the equipment is achieved.
Specifically, the number of the detection assemblies 70 is two, and the two detection assemblies 70 are respectively connected with the regulating tank 1 and the SBR reaction tank 2. The detection assembly 70 comprises a sampling detector, a peristaltic pump and sampling pipes connected with the peristaltic pump, and the regulating tank 1 and the SBR reaction tank 2 are respectively communicated with the corresponding sampling pipes. The peristaltic pump extrudes the sampling tube, and negative pressure is formed in the sampling tube so as to drive sewage to flow along the sampling tube. The sampling detector detects the sewage in the sampling tube.
Specifically, the dosing assembly 72 comprises a dosing pump, a dosing barrel and a dosing pipe, and the dosing pump is connected with the dosing barrel and the dosing pump is connected with the SBR reaction tank 2 through the dosing pipe. In this embodiment, the number of the dosing barrels is plural, and each dosing barrel is used for containing a chemical including but not limited to a carbon source, a dephosphorizing agent, etc., and delivering the chemical into the SBR reaction tank 2 through the dosing pump and the dosing pipe.
Specifically, the aeration assembly 71 includes an aerator, a fan and an aeration pipe, the aerator is disposed in the SBR reaction tank 2, and the aerator is connected with the fan through the aeration pipe. In this embodiment, the aeration assembly 71 is used to introduce air or oxygen into the SBR reaction tank 2 to supplement oxygen consumed in degrading organic matters by the flora in the activated sludge. Meanwhile, in the purifying process, the addition of oxygen can promote degradation of organic matters, nitrifying and denitrifying and promote phosphorus absorption of phosphorus accumulating bacteria in an aerobic state.
In one embodiment, the connecting pipeline 3 comprises a lift pump 30, and a water inlet pipe group 31, a water outlet pipe group 32 and a sewage drain pipe group 33 which are connected with the lift pump 30, wherein the regulating tank 1 is communicated with the SBR reaction tank 2 through the water inlet pipe group 31, and the sewage drain pipe group 33 and the water outlet pipe group 32 are used for communicating with the outside of the SBR reaction tank 2. In this embodiment, the water inlet pipe group 31, the water outlet pipe group 32 and the sewage pipe group 33 are all connected with the lift pump 30, and the plurality of pipelines are controlled by a single lift pump 30, so that the equipment cost can be reduced and the equipment idle rate can be reduced.
Specifically, referring to fig. 4, the inlet end of the lift pump 30 is sequentially connected to a first inlet three-way valve 35 and a second inlet three-way valve 36, the inlet end of the water inlet pipe group 31 is connected to the first inlet three-way valve 35, and the inlet ends of the water outlet pipe group 32 and the sewage pipe group 33 are connected to the second inlet three-way valve 36. The outlet end of the lift pump 30 is connected with a first outlet three-way valve 37 and a second outlet three-way valve 38 in sequence, the outlet end of the water inlet pipe group 31 is connected with the first outlet three-way valve 37, and the outlet ends of the water outlet pipe group 32 and the sewage drain pipe group 33 are connected with the second outlet three-way valve 38. It will be appreciated that the three-way valve is used to communicate the inlet and outlet ends of the water inlet pipe group 31, the water outlet pipe group 32 and the sewage pipe group 33 with the inlet and outlet ends of the lift pump 30, respectively, and to form a passage between the inlet ends of the pipes and the outlet ends of the pipes by controlling the valve, so as to satisfy the medium transportation among the conditioning tank 1, the SBR reaction tank 2 and the external devices. In this embodiment, when water is fed, sewage in the adjusting tank 1 sequentially passes through the first water inlet pipe 311, the first inlet three-way valve 35, the lift pump 30, the first outlet three-way valve 37 and the second water inlet pipe 312, so that sewage is injected into the SBR reaction tank 2 from the adjusting tank 1. During water outlet, purified water in the SBR reaction tank 2 sequentially passes through a first water outlet pipe 321, a second inlet three-way valve 36, a first inlet three-way valve 35, a lifting pump 30, a first outlet three-way valve 37, a second outlet three-way valve 38 and a second water outlet pipe 322, so that water is discharged to the outside from the SBR reaction tank 2. During sewage disposal, the purified sludge in the SBR reaction tank 2 sequentially passes through the first sewage disposal pipe 331, the second inlet three-way valve 36, the first inlet three-way valve 35, the lift pump 30, the first outlet three-way valve 37 and the second sewage disposal pipe 332, so that the sludge is discharged to the outside from the SBR reaction tank 2.
The water inlet pipe group 31 is used for communicating the regulating tank 1 and the SBR reaction tank 2, so that sewage enters the SBR reaction tank 2 from the regulating tank 1. The water inlet pipe group 31 includes a first water inlet pipe 311 and a second water inlet pipe 312, both ends of the first water inlet pipe 311 are connected with the regulating tank 1 and the first inlet three-way valve 35, respectively, and both ends of the second water inlet pipe 312 are connected with the first outlet three-way valve 37 and the SBR reaction tank 2, respectively. The water outlet pipe group 32 is used for communicating the SBR reaction tank 2 with the outside, so that purified sewage is discharged from the SBR reaction tank 2 to the outside. The water outlet pipe group 32 comprises a first water outlet pipe 321 and a second water outlet pipe 322, wherein two ends of the first water outlet pipe 321 are respectively connected with the SBR reaction tank 2 and the second inlet three-way valve 36, one end of the second water outlet pipe 322 is connected with the second outlet three-way valve 38, and the other end is used for being communicated with the outside. The drain pipe group 33 is used for communicating the SBR reaction tank 2 with the outside, so that purified sludge is discharged from the SBR reaction tank 2 to the outside. The drain pipe group 33 includes a first drain pipe 331 and a second drain pipe 332, both ends of the first drain pipe 331 are connected to the SBR reaction tank 2 and the second outlet three-way valve 38, respectively, one end of the second drain pipe 332 is connected to the second outlet three-way valve 38, and the other end is used for communication with the outside.
In one embodiment, the connecting line 3 further includes a backwash tube group 34, the backwash tube group 34 is connected to the lift pump 30, and an inlet end of the backwash tube group 34 is connected to the SBR reaction tank 2 and an outlet end of the backwash tube group 34 is connected to the adjustment tank 1. It will be appreciated that the backwash tube group 34 is used to clean the various lines and the conditioning tank 1 and to humidify and spray the deodoriser during the blowdown process. In the course of sewage or sludge conveyance, sludge or other impurities in sewage remain on the pipe wall, the lift pump 30 and the tank wall, and the pipeline and the regulating tank 1 can be cleaned by providing the backwash pipe group 34.
Preferably, the backwash tube group 34 is provided with a third outlet three-way valve 39, the third outlet three-way valve 39 being connected between the second outlet three-way valve 38 and the outlet end of the effluent tube group 32, the outlet end of the backwash tube group 34 being connected to the third outlet three-way valve 39 and the inlet end of the effluent tube group 32 forming the inlet end of the backwash tube group 34. It will be appreciated that since the drain pipe group 33 is connected to the second outlet three-way valve 38, the third outlet three-way valve 39 is provided on the side of the second outlet three-way valve 38 remote from the lift pump 30, and is useful for thoroughly cleaning the sludge left in the pipeline during the drain. In this embodiment, the inlet ends of the water outlet tube group 32 and the backwash tube group 34 share the same pipeline, which is beneficial to saving equipment space, reducing equipment cost and reducing equipment idle rate.
Specifically, the backwash tube group 34 includes a backwash tube 341, and both ends of the backwash tube 341 are connected to the second outlet three-way valve 38 and the adjustment tank 1, respectively. During backwashing, sewage in the SBR reaction tank 2 sequentially passes through the first water outlet pipe 321, the second inlet three-way valve 36, the first inlet three-way valve 35, the lifting pump 30, the first outlet three-way valve 37, the second outlet three-way valve 38 and the backwashing pipe 341, so that the sewage enters the regulating tank 1 from the SBR reaction tank 2.
In one embodiment, the connecting line 3 further includes an inner circulation tube group, the inlet end of the outlet tube group 32 forming an inlet end of the inner circulation tube group, and the outlet end of the inlet tube group 31 forming an outlet end of the inner circulation tube group. In this embodiment, during the internal sewage circulation, the sewage in the SBR reaction tank 2 sequentially passes through the first water outlet pipe 321, the second inlet three-way valve 36, the first inlet three-way valve 35, the lift pump 30, the first outlet three-way valve 37 and the second water inlet pipe 312, so as to realize the internal sewage circulation. An internal circulation pipe group is arranged, so that the sewage can realize internal circulation in the SBR reaction tank 2, and COD is degraded in an anaerobic state, denitrification is carried out, and phosphorus is released by phosphorus accumulating bacteria in an anaerobic state. Meanwhile, the inner circulation pipe group and the outlet end of the water inlet pipe group 31 and the inlet end of the water outlet pipe group 32 share the same pipeline, which is beneficial to saving equipment space, reducing equipment cost and reducing the idle rate of equipment.
Specifically, the first inlet three-way valve 35 includes a first inlet three-way pipe, the second inlet three-way valve 36 includes a second inlet three-way pipe, the first outlet three-way valve 37 includes a first outlet three-way pipe, the second outlet three-way valve 38 includes a second outlet three-way pipe, the third outlet three-way valve 39 includes a third outlet three-way pipe, pneumatic valves 350 are disposed on the first inlet three-way pipe, the second inlet three-way pipe, the first outlet three-way pipe, the second outlet three-way pipe and the third outlet three-way pipe, and each pneumatic valve 350 is connected with the air compressor 9 and the control module. Each tee is made to form a one-way passageway through pneumatic valve 350. For example: referring to fig. 3, when water is fed, the pneumatic valve 350 on the first inlet three-way valve 35 closes the pipeline between the pneumatic valve 350 and the second inlet three-way valve 36, and the pneumatic valve 350 on the first outlet three-way valve 37 closes the pipeline between the pneumatic valve 350 and the second outlet three-way valve 38, so that sewage sequentially passes through the first inlet pipe 311, the first inlet three-way pipe, the lift pump 30, the first outlet three-way pipe and the second inlet pipe 312 from the regulating tank 1 to enter the SBR reaction tank 2. In other embodiments, each three-way valve may be a T-shaped three-way ball valve, so as to achieve confluence and diversion of the inlet end and the outlet end of the lift pump 30.
Specifically, the regulation and control device also comprises an SV30 detector, wherein the SV30 detector is arranged on the inner circulation pipe group, and the SV30 detector extracts sewage from the inner circulation pipe group and detects the sludge sedimentation ratio of the sewage. It is understood that SV30 is the volume percentage of sludge after the mixed sewage in SBR reaction tank 2 is stationary in a measuring cylinder for 30 minutes. The sludge sedimentation ratio is detected, so that the flora quantity in the sludge is analyzed, and the flora content in the SBR reaction tank 2 is controlled through detection data to promote sewage purification. For example: when the sludge amount detected is greater than the upper limit value, the drain pipe group 33 is started to drain the sludge, and the sludge amount in the SBR reaction tank 2 is maintained within a proper range. When the detected sludge amount is lower than the lower limit value, it can be judged that the concentration of the organic matters in the sewage in the regulating tank 1 is too low, and the microorganisms consume the organic matters endogenously, so that the aeration assembly 71 can be closed to reduce oxygen input, and the dosing assembly 72 can be opened to input carbon sources so as to maintain the activity of the microorganisms.
Specifically, the water discharge tube set 32 includes a decanter 8, and the decanter 8 is connected to an inlet end of the water discharge tube set 32. It will be appreciated that the sewage in the SBR reaction tank 2 is discharged to the outside of the apparatus through the water outlet pipe group 32 after the sewage is subjected to the precipitation process. The decanter 8 is arranged at the inlet end of the water outlet pipe group 32, so that water stirring can be prevented in the water discharging process, the separated sludge is prevented from being mixed with water again, and the quality of the discharged water is further ensured.
Specifically, the sewage treatment apparatus further comprises a dewatering device 4 and a disinfection device 6, the dewatering device 4 is connected with the outlet end of the sewage drain pipe group 33, the dewatering device 4 receives the sludge discharged by the SBR reaction tank 2 and carries out dewatering treatment on the sludge, the disinfection device 6 is arranged at the outlet end of the water outlet pipe group 32, and the disinfection device 6 carries out disinfection treatment on water in the water outlet pipe group 32.
Specifically, the sewage treatment apparatus further includes a deodorizing device 5, the deodorizing device 5 being connected to the dehydrating device 4, the deodorizing device 5 deodorizing the sludge in the dehydrating device 4.
Specifically, the regulating tank 1 and the SBR reaction tank 2 are respectively provided with a liquid level meter. As a preferable scheme, a floating ball liquid level meter is arranged in the regulating tank 1, and an electrode liquid level meter is arranged in the SBR reaction tank 2.
In one embodiment, the SBR reaction tank 2 includes two accommodation chambers provided in a vertical direction, a partition plate 21 is provided between the two accommodation chambers, and the accommodation chambers on the lower side of the partition plate 21 form the adjustment tank 1. It will be appreciated that the SBR reaction tank 2 is integrally formed with the regulating tank 1, and is partitioned by a partition plate 21. Is beneficial to saving space and improving the space benefit rate of the equipment. In this embodiment, the partition plate 21 is curved, and the partition plate 21 is sequentially curved toward the SBR reaction tank along the circumferential portion thereof toward the middle portion thereof, so as to enhance the bearing strength of the partition plate 21.
The treatment process of the sewage treatment device of the embodiment includes:
s1, sewage enters a grating slag module 10 through a water inlet 11, and enters an adjusting tank 1 after being filtered;
s2, injecting water into the SBR reaction tank 2, starting the lifting pump 30, and enabling sewage to enter the SBR reaction tank 2 through the water inlet pipe group 31. The aeration assembly 71 is started to perform aeration to achieve nitrification (conversion of ammonia nitrogen into nitrate nitrogen).
S3, anaerobic degradation, starting a lifting pump 30, and carrying out internal circulation on sewage through an internal circulation pipe group to promote phosphorus-accumulating bacteria to release phosphorus.
S4, aerobic degradation, starting an aeration assembly 71, aerating the SBR reaction tank 2, and further degrading COD, nitrifying and denitrifying, and absorbing phosphorus by phosphorus accumulating bacteria.
S5, SV30 sampling, sampling from the inner circulation pipe group through a sampling device, photographing the sedimentation state of the sewage by using a camera after standing for 30 minutes, and feeding back data.
S6, starting the lifting pump 30, and removing sewage in the pipeline through the backwash pipe group 34.
S7, settling, namely closing the lifting pump 30 and the aeration assembly 71, enabling the sewage in the SBR reaction tank 2 to stand, and promoting the separation of the sewage and the sludge.
S8, draining, starting the lifting pump 30, starting the disinfection device 6, and draining the separated water through the water outlet pipe group 32.
S9, discharging sludge, starting the lifting pump 30, and discharging the separated sludge into the dewatering device 4 through the sewage pipe group 33.
S10, the equipment is idle and restored.
The remarkable effects of this embodiment are: through setting up regulation and control device, detect sewage in the sewage purification process, aeration or charge to SBR reaction tank 2 according to the testing result to and adjust the purification time, reach the microorganism and maintain balanced state and reduce the energy consumption, improve purification efficiency's purpose. Meanwhile, the inlet end and the outlet end of the lifting pump 30 are respectively used for converging and diverging the pipelines through the three-way valve, and different pipelines share the same pipeline, so that the equipment space is saved, the equipment cost is reduced, and the idle rate of the equipment is reduced.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (6)
1. The sewage treatment equipment is characterized by comprising a regulating tank (1), an SBR reaction tank (2), a connecting pipeline (3) and a regulating device, wherein the regulating tank (1) is used for accommodating sewage, the regulating tank (1) is connected with the SBR reaction tank (2) through the connecting pipeline (3), the regulating device comprises a detection component (70), an aeration component (71) and a dosing component (72), the detection component (70) is arranged on the regulating tank (1) and the SBR reaction tank (2), the aeration component (71) and the dosing component (72) are connected with the SBR reaction tank (2), the SBR reaction tank (2) is used for receiving the sewage in the regulating tank (1) and purifying the sewage, and the treated water and sludge are discharged through the connecting pipeline (3);
the connecting pipeline (3) comprises a lifting pump (30), and a water inlet pipe group (31), a water outlet pipe group (32) and a sewage drain pipe group (33) which are connected with the lifting pump (30), wherein the regulating tank (1) is communicated with the SBR reaction tank (2) through the water inlet pipe group (31), and the sewage drain pipe group (33) and the water outlet pipe group (32) are both used for communicating the SBR reaction tank (2) with the outside;
the inlet end of the lifting pump (30) is sequentially connected with a first inlet three-way valve (35) and a second inlet three-way valve (36), the inlet end of the water inlet pipe group (31) is connected with the first inlet three-way valve (35), the inlet ends of the water outlet pipe group (32) and the sewage pipe group (33) are both connected with the second inlet three-way valve (36), the outlet end of the lifting pump (30) is sequentially connected with a first outlet three-way valve (37) and a second outlet three-way valve (38), the outlet end of the water inlet pipe group (31) is connected with the first outlet three-way valve (37), and the outlet ends of the water outlet pipe group (32) and the sewage pipe group (33) are both connected with the second outlet three-way valve (38);
the connecting pipeline (3) further comprises an inner circulating pipe group, the inlet end of the water outlet pipe group (32) forms the inlet end of the inner circulating pipe group, and the outlet end of the water inlet pipe group (31) forms the outlet end of the inner circulating pipe group;
the regulation and control device further comprises an SV30 detector, wherein the SV30 detector is arranged on the inner circulation pipe group, and the SV30 detector extracts sewage from the inner circulation pipe group and detects the sludge sedimentation ratio of the sewage.
2. The sewage treatment apparatus according to claim 1, wherein the detection assembly (70) comprises a sampling detector, a peristaltic pump and a sampling tube connected to the peristaltic pump, and the regulating reservoir (1) and the SBR reaction reservoir (2) are both in communication with one of the sampling tubes.
3. The sewage treatment apparatus according to claim 1, wherein the dosing assembly (72) comprises a dosing pump, a dosing barrel and a dosing tube, wherein the dosing pump is connected with the dosing barrel, and the dosing pump is connected with the SBR reaction tank (2) through the dosing tube.
4. The sewage treatment apparatus according to claim 1, wherein the aeration assembly (71) comprises an aerator, a fan and an aeration pipe, the aerator is provided in the SBR reaction tank (2), and the aerator is connected with the fan through the aeration pipe.
5. The sewage treatment apparatus according to claim 1, wherein the connection line (3) further comprises a backwash tube group (34), the backwash tube group (34) being provided with a third outlet three-way valve (39), the third outlet three-way valve (39) being connected between the second outlet three-way valve (38) and the outlet end of the outlet tube group (32), the outlet end of the backwash tube group (34) being connected with the third outlet three-way valve (39), the inlet end of the outlet tube group (32) forming the inlet end of the backwash tube group (34).
6. The sewage treatment apparatus according to claim 1, wherein the SBR reaction tank (2) includes two accommodation chambers provided in a vertical direction, a partition plate (21) is provided between the two accommodation chambers, and the accommodation chambers located on a lower side of the partition plate (21) form an adjustment tank (1).
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