CN219848299U - Improved household sequencing batch activated sludge process sewage treatment device - Google Patents
Improved household sequencing batch activated sludge process sewage treatment device Download PDFInfo
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- CN219848299U CN219848299U CN202321370493.9U CN202321370493U CN219848299U CN 219848299 U CN219848299 U CN 219848299U CN 202321370493 U CN202321370493 U CN 202321370493U CN 219848299 U CN219848299 U CN 219848299U
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- 239000010865 sewage Substances 0.000 title claims abstract description 63
- 239000010802 sludge Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000008569 process Effects 0.000 title claims abstract description 46
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000006243 chemical reaction Methods 0.000 claims abstract description 78
- 238000004062 sedimentation Methods 0.000 claims abstract description 42
- 238000005273 aeration Methods 0.000 claims description 36
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 7
- 210000005056 cell body Anatomy 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims 5
- 241001330002 Bambuseae Species 0.000 claims 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 5
- 239000011425 bamboo Substances 0.000 claims 5
- 238000010030 laminating Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000011144 upstream manufacturing Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 13
- 239000006228 supernatant Substances 0.000 description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000010840 domestic wastewater Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model belongs to the technical field of environmental engineering, and relates to an improved household sequencing batch activated sludge process sewage treatment device which comprises a tank body, wherein the tank body comprises a reaction tank, a sedimentation tank and an adjusting tank, the adjusting tank is positioned at the process upstream of the reaction tank, the reaction tank is positioned at the process upstream of the sedimentation tank, the reaction tank and the sedimentation tank are connected through a water outlet side gas stripping pipe, the water outlet side gas stripping pipe comprises a gas stripping main pipe and a floating sleeve sleeved on the gas stripping main pipe, and the floating sleeve is used for enabling the water outlet side gas stripping pipe to float on the water surface. The utility model solves the problems of mud leakage and the like of the household activated sludge process sewage treatment device, and reduces the operation and maintenance cost and the technical threshold of rural sewage treatment.
Description
Technical Field
The utility model belongs to the technical field of environmental engineering, relates to an SBR sewage treatment process, and particularly relates to an improved household sequencing batch activated sludge process sewage treatment device.
Background
In recent years, along with the acceleration of the modern process, water resources in China face the crisis of increasingly serious pollution, and the characteristics of domestic sewage in partial areas of China, especially rural areas, are as follows: the water quantity is dispersed, the carbon source in the water is insufficient, the nitrogen and phosphorus content is high, and the existing sewage treatment process, such as AAO, UASB, activated sludge process, oxidation ditch process and the like, is difficult to popularize and apply due to high investment and operation cost.
The sequencing batch activated sludge process is an activated sludge sewage treatment technology operated in an intermittent aeration mode, and is different from the traditional sewage treatment technology, the sequencing batch activated sludge process replaces the original space division by time division, so that the reaction tank has the functions of aerobic reaction, anaerobic reaction, precipitation and the like. The sequencing batch activated sludge process has the flexibility in operation in time and space, and has many new changes and developments according to different water quality conditions, use occasions and water outlet requirements, so that the sequencing batch activated sludge process is very suitable for treating small-water industrial wastewater and scattered point source pollution, has great advantages for treating rural domestic wastewater, and is an integral device of the sequencing batch activated sludge process for the rural domestic wastewater.
However, the integrated small household sewage treatment device is usually accompanied with defects such as mud leakage and the like caused by the structure simplification, namely, the active sludge in the reaction tank is lost from the water outlet, so that on one hand, the water outlet quality is influenced, on the other hand, the purifying capacity of the device is reduced, and the device has higher technical requirements on operation and maintenance personnel, so that the device is difficult to popularize in a large range in rural areas.
Disclosure of Invention
The utility model provides an improved household sequencing batch sewage treatment device, which aims to solve the problems of sludge running and the like of the existing household sewage treatment device by an activated sludge process.
The utility model provides an improved household sequencing batch activated sludge process sewage treatment device which adopts the following technical scheme: the utility model provides an improvement formula of family is with sequencing batch active sludge process sewage treatment plant, includes the cell body, the cell body includes reaction tank, sedimentation tank and equalizing basin, the equalizing basin is located the technology upper reaches of reaction tank, the reaction tank is located the technology upper reaches of sedimentation tank, the reaction tank with connect through play water side gas stripping tube between the sedimentation tank, play water side gas stripping tube includes gas stripping main pipe and cover are located the floating cover of gas stripping main pipe, the floating cover is used for making play water side gas stripping tube floats in the surface of water.
By adopting the technical scheme, the position of the air stripping pipe at the water outlet side changes along with the rising and falling of the liquid level in the reaction tank, so that the liquid which is conveyed by the reaction tank to the sedimentation tank by the device is ensured to be supernatant liquid in the reaction tank, and the phenomenon that activated sludge in the reaction tank is conveyed to the sedimentation tank due to the change of the water level is avoided. So that the device better fits the characteristics of unstable water output and dispersed water quantity of rural domestic sewage, and the reactive tank is not required to be frequently reseeded with activated sludge.
Meanwhile, due to the arrangement of the air stripping pipe at the water outlet side, the decanter in the traditional SBR technology is optimized, the use of a water pump is avoided, on one hand, the size of the whole device is reduced, the power consumption of sewage treatment is reduced, on the other hand, the complexity of the device is reduced, and the maintenance frequency is reduced.
Preferably, the water outlet side stripping pipe comprises a water inlet hole, and the water inlet Kong Kaishe is arranged on the stripping main pipe and positioned in the reaction tank.
Through adopting above-mentioned technical scheme, go out water side gas stripping tube to the extraction of liquid in the reaction tank is more even mild, has weakened because of the muddy water that draws water to lead to.
Preferably, one end of the water outlet side air stripping pipe, which is close to the bottom of the reaction tank, is fixedly connected with a balancing weight, and the balancing weight is positioned in the reaction tank.
Through adopting above-mentioned technical scheme, go out water side gas stripping tube and be in the liquid of reaction tank remains vertical throughout, promptly the balancing weight is under and the state that the floating cover is last, be favorable to yielding water quality's stability.
Preferably, the improved household sequencing batch activated sludge process sewage treatment device further comprises a device room electrically connected with the reaction tank, and the tank body and the device room are integrated in a tank body.
By adopting the technical scheme, the pretreatment, purification, sedimentation, deep sedimentation and equipment control of the whole SBR sewage treatment process are integrated into a whole, so that the use is truly convenient, and the method is suitable for rural environments.
Preferably, the equipment room comprises a time controller, a first air stripping pump, a second air stripping pump and an aeration pump, wherein the first air stripping pump, the second air stripping pump and the aeration pump are automatically controlled by the time controller.
By adopting the technical scheme, the whole sewage treatment process including water inlet, water outlet, purification and precipitation does not need manual control, one-key starting is realized, and no technical threshold exists.
Preferably, the adjusting tank, the reaction tank and the sedimentation tank are respectively provided with an operation window at the top.
By adopting the technical scheme, operation and maintenance personnel can conveniently maintain the device, extract sludge, and particularly, the effect of chemical dephosphorization can be achieved by adding the dephosphorizing agent into the sedimentation tank.
Preferably, a baffle is arranged on one side of the reaction tank, which is close to the regulating tank, and one end of the baffle is fixedly connected with the top of the reaction tank.
By adopting the technical scheme, the short flow phenomenon can occur in the reaction tank.
Preferably, a plurality of baffle plates are arranged in the regulating tank, the baffle plates are mutually parallel, and each baffle plate is fixedly connected with the top of the regulating tank or the bottom of the regulating tank at one end.
By adopting the technical scheme, the sewage to be treated can be precipitated to a certain extent in the regulating tank, so that the purification difficulty of subsequent treatment is reduced.
Preferably, a vertical flow central cylinder is arranged in the sedimentation tank, the vertical flow central cylinder comprises a cylindrical through cylinder and a horn mouth connected with the cylindrical through cylinder, the cylindrical through cylinder is connected with the air stripping pipe at the water outlet side, a flow divider is arranged at the bottom of the sedimentation tank, the flow divider is matched with the horn mouth, and the bottom surface of the flow divider is attached to the bottom surface of the sedimentation tank.
By adopting the technical scheme, the device can carry out deep sedimentation on sewage treated by the reaction tank, so as to achieve better sewage treatment effect.
Preferably, the pipeline system comprises an aeration pipe and an aeration disc, wherein the outlet end of the aeration pipe is arranged at the bottom of the reaction tank, and the aeration disc is fixedly connected with the outlet end of the aeration pipe.
By adopting the technical scheme, the activated sludge in the reaction tank and the sewage to be treated are fully mixed in the aeration stage, so that the purification effect is improved.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the integrated improved household sequencing batch activated sludge process sewage treatment device is suitable for rural use environments; 2. the reaction tank is connected with the sedimentation tank through a water outlet gas stripping device which can be adjusted along with the water level, so that the mud leakage phenomenon caused by the water level change is avoided;
3. the whole sewage treatment process is automatically and circularly controlled by a time controller without manual control;
4. the air-extracted water is used for replacing the decanter and the water pump, so that the volume of the device is reduced, the structure of the device is simplified, and the operation and maintenance technical requirements and the cost are reduced.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of a sewage treatment apparatus according to the modified household sequencing batch reactor (SBS) of example 1 of the present utility model.
FIG. 2 is a schematic diagram of an adjusting tank of the sewage treatment apparatus of the modified household sequencing batch reactor (SBS) of example 1 of the present utility model.
FIG. 3 is a schematic view of a reaction tank of the sewage treatment apparatus of the modified household sequencing batch reactor (SBS) of example 1 of the present utility model.
FIG. 4 is a schematic diagram of a sedimentation tank of the sewage treatment apparatus of the improved household sequencing batch reactor (SBS) of example 1 of the present utility model.
FIG. 5 is a schematic diagram showing the equipment of the sewage treatment apparatus according to the modified household sequencing batch reactor (SBS) of example 1 of the present utility model.
FIG. 6 is a schematic view of the air stripping pipe on the water outlet side of the improved household sequencing batch reactor (SBS) sewage treatment device according to example 1 of the present utility model.
FIG. 7 is a schematic diagram showing the overall structure of a sewage treatment apparatus according to the modified household sequencing batch reactor (SBS) of example 2 of the present utility model.
FIG. 8 is a schematic view of a reaction tank of a sewage treatment apparatus according to the modified household sequencing batch reactor (SBS) of example 2 of the present utility model.
FIG. 9 is a schematic view of the air stripping pipe on the water outlet side of the improved household sequencing batch reactor (SBS) sewage treatment device according to example 2 of the present utility model.
Reference numerals illustrate:
1. a cell body; 11. an adjusting tank; 111. a baffle plate; 112. an adjusting pool window; 113. a filter screen; 12. a reaction tank; 121. a deflector; 122. a reaction tank window; 123. activated sludge; 13. a sedimentation tank; 131. a vertical flow central cylinder; 1311. a cylindrical through cylinder; 1312. a horn mouth; 132. a sedimentation tank window; 133. a shunt; 2. a pipeline system; 21. a water inlet pipe; 22. a water inlet side air stripping pipe; 23. a water outlet side air stripping pipe; 231. a gas stripping main pipe; 232. a gas stripping water pipe; 233. a porous inlet pipe; 234. an air inlet; 235. an air supply pipe; 236. a floating sleeve; 237. balancing weight; 24. a water outlet pipe; 25. a first air duct; 26. a second air duct; 27. an aeration pipe; 28. an aeration disc; 3. the equipment room; 31. a time controller; 32. a first stripping pump; 33. a second stripping pump; 34. and (5) an aeration pump.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-9.
The embodiment of the utility model discloses an improved household sequencing batch activated sludge process sewage treatment device.
Example 1
Referring to fig. 1 to 6, the improved sewage treatment device using sequencing batch activated sludge process for household comprises a tank body 1, a pipeline system 2 and an equipment room 3.
Referring to fig. 1, the tank body 1 includes an adjusting tank 11, a reaction tank 12, and a settling tank 13, and the adjusting tank 11, the reaction tank 12, the settling tank 13, and the inter-device 3 are disposed adjacent to each other in sequence in space.
One side of the regulating tank 11, which is far away from the reaction tank 12, is provided with a water inlet pipe 21, a water inlet side air stripping pipe 22 is arranged on the upper part of the tank wall between the regulating tank 11 and the reaction tank 12, a water outlet side air stripping pipe 23 is arranged on the upper part of the tank wall between the reaction tank 12 and the sedimentation tank 13, and a water outlet pipe 24 is arranged on one side of the sedimentation tank 13, which is far away from the reaction tank 12.
Referring to fig. 6, the water-outlet side stripping tube 23 includes a stripping water tube 232, a stripping main tube 231, and a porous water inlet tube 233 which are sequentially connected, the water-outlet side stripping tube 23 further includes an air supply tube 235 and an air inlet 234 disposed on the stripping main tube 231, and the air supply tube 235 is connected to the stripping main tube 231 through the air inlet 234.
The water outlet side stripping pipe 23 in this embodiment has the same structure as the water inlet side stripping pipe 22.
Referring to fig. 2, the adjusting tank 11 is provided with a filter screen 113 at the water outlet of the water inlet pipe 21; three baffle plates 111 which are vertically arranged are arranged in the regulating tank 11, one baffle plate 111 is connected with the bottom of the regulating tank 11, and the rest two baffle plates 111 are connected with the top of the regulating tank 11; the top of the regulating tank 11 is provided with a regulating tank window 112.
Referring to fig. 3, an aeration pipe 27 and a plurality of aeration disks 28 uniformly distributed along the aeration pipe 27 are arranged at the bottom of the reaction tank 12; the reaction tank 12 is provided with a guide plate 121 at the water outlet of the water inlet side air stripping pipe 22, and one end of the guide plate 121 is fixedly connected with the top of the reaction tank 12; activated sludge 123 is inoculated in the reaction tank 12; the top of the reaction tank 12 is provided with a reaction tank window 122.
Referring to fig. 4, the sedimentation tank 13 is provided with a vertical flow central cylinder 131 at the water outlet of the water outlet side air stripping pipe 23, and the vertical flow central cylinder 131 comprises a vertical cylindrical through cylinder 1311 and a bell mouth 1312 fixedly connected with the cylindrical through cylinder 1311; a diverter 133 is arranged below the vertical flow central cylinder 131, the diverter 133 is in a conical shape with the bottom surface dimension consistent with the bell mouth 1312, and the bottom surface of the diverter 133 is fixedly connected with the bottom of the sedimentation tank 13; a sedimentation tank window 132 is arranged at the top of the sedimentation tank 13.
The equipment room 3 comprises a time controller 31, a first air stripping pump 32, a second air stripping pump 33 and an aeration pump 34; the first air stripping pump 32 is connected to the water inlet side air stripping pipe 22 through a first air guide pipe 25, the second air stripping pump 33 is connected to the water outlet side air stripping pipe 23, and the aeration pump 34 is connected to the aeration pipe 27; the first air stripping pump 32, the second air stripping pump 33 and the aeration pump 34 are all automatically controlled by the time controller 31.
The implementation principle of the improved household sequencing batch activated sludge process sewage treatment device provided by the embodiment of the utility model is divided into four stages: regulating, purifying, precipitating, and deeply precipitating.
The following stages describe the principle of implementation of each stage, assuming that the first stripping pump 32, the second stripping pump 33, and the aeration pump 34 are all in the off state in the initial state.
The adjusting process comprises the following steps: the sewage to be treated is introduced into the regulating tank 11 through the water inlet pipe 21, and large-particle impurities are primarily screened out through the filter screen 113; then, the sewage is blocked by the baffle plate 111, the flow speed is reduced, the sewage is pushed to flow to the direction of the reaction tank 12 by the subsequent sewage, and the impurities with larger specific gravity sink and are separated from the sewage, so that the whole process lasts for 12-24 hours.
The reaction process comprises the following steps: the first air stripping pump 32 is started, air is pumped into the air inlet 234 through the first air guide pipe 25 pump and the air supply pipe 235 in sequence, at the position of the air inlet 234, the air is mixed with sewage in the air stripping main pipe 231 and enters the reaction tank 12 under the action of gravity, and meanwhile, because the pressure in the air stripping main pipe 231 is reduced, the sewage in the regulating tank 11 enters the air stripping main pipe 231 through the porous water inlet pipe 233; subsequently, the first air stripping pump 32 is turned off, the aeration pump 34 is started, and air is pumped into the aeration disc 28 along the aeration pipe 27, because the density of the air is far less than that of the suspension in the reaction tank 12, the air floats upwards, oxygen is provided for the reaction tank 12, and meanwhile, the activated sludge 123 is impacted, so that the activated sludge 123 is mixed with sewage, and organic matters and ammonia nitrogen in the sewage are absorbed by the activated sludge 123.
Precipitation process: after a period of time, the aeration pump 34 is turned off, the oxygen concentration in the reaction tank 12 continuously decreases along with the progress of the reaction process, anaerobic reactions such as denitrification reaction gradually dominate, and the nitrogen content in the sewage is continuously consumed. Meanwhile, since there is no disturbance of the gas, the activated sludge 123 gradually settles to the bottom of the reaction tank 12.
Deep precipitation process: the second air stripping pump 33 is started, and sewage is led into the vertical flow central cylinder 131 through the water outlet side air stripping pipe 23, and the principle is the same as that of the water inlet side air stripping pipe 22; impurities and sewage containing more impurities settle to the bottom of the sedimentation tank 13 under the action of gravity, the sewage is subjected to physical sedimentation after being split by the splitter 133, and gas and clear liquid containing less impurities are discharged from the upper part of the vertical flow central cylinder 131 and are collected into the original supernatant of the sedimentation tank 13.
In particular, in the deep precipitation stage, dephosphorizing agent is put into the sedimentation tank 13 through the sedimentation tank window 132 to perform chemical dephosphorization.
The upper liquid level of the sedimentation tank 13 is flush with the water outlet pipe 24, new sewage enters the sedimentation tank 13 from the reaction tank 12 to lift the supernatant, and the supernatant is discharged out of the device through the water outlet pipe 24, so that the whole sewage treatment process is completed.
The residence time of the wastewater in each tank is recommended as follows: regulating the tank for 12-24 hours, reacting the tank for 12-24 hours and precipitating the tank for 6-12 hours.
In this example, recommended design parameters are given below and the modified household sequencing batch activated sludge process wastewater treatment device set according to the parameters is tested.
The aeration pump 34 is an air pump of model JDK-100, the air transmission per minute is 100L, and the power is 70w; the first air stripping pump 32 and the second air stripping pump 33 are both air pumps with the power of 35w, and the air transmission amount per minute is 65L; the effective volume of the reaction tank 12 is 1m 3 The effective water depth is 0.8m; the effective volume of the sedimentation tank 13 is 0.5m 3 The effective water depth is 0.6m; the effective volume of the regulating tank 11 is 1m 3 The specific water depth is changed according to the water inlet condition, and does not doAnd (3) limiting.
The timing of the time controller 31 is set as follows:
the first stripping pump 32 is started, the aeration pump 34 and the second stripping pump 33 are stopped, and sewage is pumped from the regulating tank 11 into the reaction tank 12 for 0.5 hour.
The aeration pump 34 is started, the first and second stripping pumps 32 and 33 are stopped, the activated sludge 123 is mixed with the sewage after being air-agitated, and the reaction tank 12 is aerobically reacted for 1 hour.
The aeration pump 34, the first air stripping pump 32 and the second air stripping pump 33 are all stopped, the anaerobic reaction in the reaction tank 12 is dominant, and the activated sludge 123 with larger specific gravity and impurities are deposited to the bottom of the tank, and the process lasts for 1 hour.
The second stripping pump 33 is started, the aeration pump 34 and the first stripping pump 32 are stopped, and the supernatant in the reaction tank 12 is pumped into the sedimentation tank 13, which lasts for 0.5 hour.
The total time of the single cycle period was 3 hours.
The following are the specification model and specific parameters of the device in this embodiment:
household SBR design parameters
Operating parameters
In this example, domestic sewage with a sludge concentration of 3300mg/L was treated by the treatment experiment, the air-water ratio was set to 5:1, and when the treatment amount was 1m per day 3 When the removal rate of COD is 77.8%, ammonia nitrogen is obtainedThe removal rate is 67.32%; when the treatment amount is 2m per day 3 When the COD was obtained, the removal rate was 71.17% and the ammonia nitrogen removal rate was 66.56%.
Case 1 Water quality and removal rate Table
| COD | Ammonia nitrogen | |
| Inflow of water | 108.34 | 15.24 |
| Effluent water | 24.05 | 4.98 |
| Removal rate of | 77.8％ | 67.32％ |
Case 2 Water quality and removal rate schedule
| COD | Ammonia nitrogen | |
| Inflow of water | 100.5 | 10.96 |
| Effluent water | 28.97 | 4.27 |
| Removal rate of | 71.17％ | 66.56％ |
According to the experimental results, the embodiment has obvious purifying effect on organic matters and ammonia nitrogen in rural sewage.
Example 2
Referring to fig. 7 to 9, this embodiment is different from embodiment 1 in that the water outlet side stripping tube is changed to the structure shown in fig. 9.
Referring to fig. 9, the present embodiment makes the following changes on the basis of the original water outlet side stripper tube:
the water outlet side air stripping pipe is not fixedly connected with the tank body.
The gas stripping main pipe is sleeved with a floating sleeve, and one end of the gas stripping pipe on the water inlet and outlet side, which is closest to the bottom of the reaction tank, is fixedly connected with a balancing weight. The configuration of the balancing weight and the floating sleeve is that the porous water inlet pipe is immersed under the liquid level when the air stripping pipe at the water outlet side floats in the supernatant fluid.
The air-lift water pipe is a hose, and the air-lift water pipe does not influence the floating and sinking of the air-lift pipe at the water outlet side in the liquid.
The implementation principle of the embodiment 2 is as follows: along with the water inlet of the water inlet side air stripping pipe, the water outlet side air stripping pipe is used for water outlet, and the purification reaction in the reaction tank is carried out, the real-time liquid capacity in the reaction tank is in dynamic change, the water outlet side air stripping pipe and the liquid level are synchronously changed, the porous water inlet pipe is used for always extracting the supernatant liquid close to the liquid level, the stability of the water outlet quality is ensured, and various negative effects caused by the loss of activated sludge are avoided.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (10)
1. An improved household sequencing batch activated sludge process sewage treatment device is characterized in that: including cell body (1), cell body (1) include reaction tank (12), sedimentation tank (13) and equalizing basin (11), equalizing basin (11) are located the technology upper reaches of reaction tank (12), reaction tank (12) are located the technology upper reaches of sedimentation tank (13), reaction tank (12) with connect through play water side gas stripping tube (23) between sedimentation tank (13), play water side gas stripping tube (23) include gas stripping main pipe (231) and cover are located floating cover (236) of gas stripping main pipe (231), floating cover (236) are used for making play water side gas stripping tube (23) float in the surface of water.
2. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: the water outlet side stripping pipe (23) comprises a water inlet hole, and the water inlet Kong Kaishe is arranged on the stripping main pipe (231) and positioned in the reaction tank (12).
3. The improved household sequencing batch reactor (activated sludge process) sewage treatment device as claimed in claim 2, wherein: one end of the water outlet side air stripping pipe (23) close to the bottom of the reaction tank (12) is fixedly connected with a balancing weight (237).
4. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: the improved household sequencing batch activated sludge process sewage treatment device further comprises an equipment room (3) electrically connected with the reaction tank (12), and the tank body and the equipment room (3) are integrated in a tank body.
5. The improved household sequencing batch reactor of claim 4, wherein said sewage treatment device is characterized by: the equipment room (3) comprises a time controller (31), a first air stripping pump (32), a second air stripping pump (33) and an aeration pump (34), wherein the first air stripping pump (32), the second air stripping pump (33) and the aeration pump (34) are automatically controlled by the time controller (31).
6. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: the regulating tank (11), the reaction tank (12) and the sedimentation tank (13) are respectively provided with an operation window at the top.
7. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: the reaction tank (12) is provided with a guide plate (121) at one side close to the regulating tank (11), and one end of the guide plate (121) is fixedly connected with the top of the reaction tank (12).
8. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: a plurality of baffle plates (111) are arranged in the regulating tank (11), the baffle plates (111) are mutually parallel, and one end of each baffle plate (111) is fixedly connected with the top of the regulating tank (11) or the bottom of the regulating tank (11).
9. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: be equipped with in sedimentation tank (13) and erect a flow center section of thick bamboo (131), erect a flow center section of thick bamboo (131) including cylinder lead to section of thick bamboo (1311) and with horn mouth (1312) that cylinder leads to section of thick bamboo (1311) are connected, cylinder lead to section of thick bamboo (1311) with play water side gas stripping tube (23) are connected, the bottom of sedimentation tank (13) is equipped with shunt (133), shunt (133) with horn mouth (1312) assorted, the bottom surface of shunt (133) with the laminating of the bottom surface of sedimentation tank (13).
10. The improved household sequencing batch activated sludge process wastewater treatment device as claimed in claim 1, wherein: the improved household sequencing batch activated sludge process sewage treatment device further comprises an aeration pipe (27) and an aeration disc (28), wherein the outlet end of the aeration pipe (27) is arranged at the bottom of the reaction tank (12), and the aeration disc (28) is fixedly connected to the outlet end of the aeration pipe (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321370493.9U CN219848299U (en) | 2023-05-31 | 2023-05-31 | Improved household sequencing batch activated sludge process sewage treatment device |
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