CN111099720B - Sewage biological treatment reactor and treatment method thereof - Google Patents
Sewage biological treatment reactor and treatment method thereof Download PDFInfo
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- 239000010865 sewage Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005070 sampling Methods 0.000 claims abstract description 98
- 238000012544 monitoring process Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 66
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000010802 sludge Substances 0.000 claims description 10
- 238000005273 aeration Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 4
- 239000004912 1,5-cyclooctadiene Substances 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000010170 biological method Methods 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000004062 sedimentation Methods 0.000 description 6
- 230000009182 swimming Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000009935 nitrosation Effects 0.000 description 1
- 238000007034 nitrosation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012428 routine sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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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
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention relates to a sewage biological treatment reactor and a treatment method thereof, which mainly comprises a reactor body and an external circulation system, wherein the external circulation system mainly comprises a circulation pipeline, a circulation pump and a sampling container, sewage is discharged from the bottom of the reactor, flows through the circulation pipeline through the circulation pump and then enters the sampling container, the position of the sampling container is higher than the highest liquid level of the reactor, and the sewage is circulated back into the reactor after sampling. The invention can solve the problem of monitoring pipeline blockage, improve the sampling accuracy, ensure the sewage monitoring effect, improve the problem of insufficient circulation at the bottom of the bioreactor and improve the sewage monitoring and sewage treatment efficiency.
Description
Technical Field
The invention belongs to the technical field of biological sewage treatment, and particularly relates to a biological sewage treatment reactor and a treatment method thereof.
Background
In a sewage treatment system, a sewage treatment facility needs to be monitored periodically for sampling. The water intaking end of current sewage treatment monitoring system is direct among the sewage usually, when the extraction water sample, because debris are numerous in the sewage, lead to the water sample to detect inaccurately to the water intaking port often is blockked up, so as to unable smooth water sampling, then needs the manual work to wash the water intaking pipe, dredge. In some reaction facilities, various filter components are designed in the reactor for avoiding the blockage of a sampling water taking pipeline, but the filter components also need to be periodically back-washed, the back-washing effect is difficult to ensure to be continuously good, and the problems of acid and alkali resistance and the like need to be considered for the filter components, so that the difficulty is increased for the design and the construction of the whole reactor.
CN102557258A discloses an improvement type integration sewage treatment plant. Mainly comprises a swimming bed reactor and an up-flow reactor; wherein: a water outlet at the upper part of the swimming bed reactor is connected with a sedimentation tank, the bottom of the sedimentation tank is connected with the inside of the swimming bed reactor through a circulating pump, and the sludge in the sedimentation tank is returned to the inside of the swimming bed reactor; the swimming bed reactor is connected with an aeration pump for carrying out nitrosation treatment on the raw water in the swimming bed reactor; the upflow reactor is cylindrical, the bottom of the upflow reactor is provided with a water distributor, a round baffle is arranged above the water distributor, and the round baffle divides a reaction layer into an upper reaction chamber and a lower reaction chamber; the upper reaction chamber is filled with a biozone filler, so that denitrifying bacteria are attached to the biozone filler; polyethylene sponge fillers are vertically arranged in the lower reaction chamber, so that the anaerobic ammonium oxidation sludge is attached to the polyethylene sponge fillers; the bottom of the upflow reactor is a water inlet which is connected with a water outlet at the upper part of the sedimentation tank, and the outer side of the reactor is provided with a plurality of sampling ports and material adding ports at different heights. The invention completes the anaerobic ammonia oxidation and denitrification processes in one reactor, saves space and improves denitrification efficiency. However, the upflow reactor needs to add materials according to data measured at the sampling ports, and meanwhile, the plurality of sampling ports are arranged at different heights on the outer side, so that the online monitoring function is not realized, the workload is increased, and the difficulty is increased for the construction of the reactor.
CN205426575U discloses a sampler for sewage treatment monitoring system, including the sampling tube, be equipped with a plurality of inlet openings on the sampling tube, this sampling tube is established at monitoring system's water intaking end, be connected with the backwash pipe on the sampling tube, this backwash pipe and running water switch-on are equipped with the stop valve on the backwash pipe. The sampling tube is in a blind hole structure, the length of the sampling tube is 180-200mm, the diameter of the sampling tube is 20-30mm, and the diameter of each water inlet hole on the sampling tube is 3-5 mm. The sampler relies on the solenoid valve to realize automatic control, when needing the water sampling, washes, dredges the sampling tube with the running water from inside earlier, then can extract sewage smoothly and detect, practices thrift manpower and materials, convenient and practical, prevent stifled effectual. But this sampler does not have the ability of holding back to tiny impurity (< 3 mm), and the sampling tube washes with the clear water earlier and extracts sewage again and detect simultaneously, has difficult to avoid the clear water to stay in the sampling tube, can reduce the concentration that sewage detected, influences the degree of accuracy that detects.
In addition, the existing bioreactor usually adopts aeration equipment, and due to the design of the aeration equipment, aeration dead angles are inevitably formed, so that the effective circulation and treatment effect of sewage are influenced to a certain extent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a sewage biological treatment reactor and a treatment method thereof. The invention can solve the problem of monitoring pipeline blockage, improve the sampling accuracy, ensure the sewage monitoring effect, improve the problem of insufficient circulation at the bottom of the bioreactor and improve the sewage monitoring and sewage treatment efficiency.
The invention provides a sewage biological treatment reactor which mainly comprises a reactor body and an external circulating system, wherein the external circulating system mainly comprises a circulating pipeline, a circulating pump and a sampling container, sewage is discharged from the bottom of the reactor, flows through the circulating pipeline through the circulating pump and then enters the sampling container, the position of the sampling container is higher than the highest liquid level of the reactor, and the sewage is circulated back into the reactor after sampling.
In the invention, the sampling container is a cylindrical container, preferably a cylindrical container with an oval or conical bottom, so that dead corners can be avoided. The sampling vessel volume is generally 1-5L and the height to diameter ratio (H/D) is 2-5. The bottom and the upper part of the side surface of the sampling container are communicated with a circulating pipeline, wastewater enters the sampling container from a water inlet at the bottom and flows out from a water outlet at the side surface of the upper part of the sampling container, the distance between the water outlet and the top of the container is 5-10cm, and the water outlet is higher than the top end of the reactor, so that the wastewater at the water outlet end of the sampling container flows back into the sampling container when the circulation stops.
In the present invention, the reactor is a sewage biological treatment reactor conventionally used in the art, such as a sewage biological treatment reactor that can remove COD, denitrogenate, dephosphorize, etc. Aeration means are generally provided inside the aerobic reactor, and stirring means are generally provided inside the anaerobic reactor. The reactor may be cylindrical, rectangular parallelepiped, or the like.
In the invention, when the number of the dead zones at the bottom of the reactor is more than one, each dead zone part is provided with a discharge port which is respectively connected with a circulation branch pipe, and after an external circulation system is started, sewage of the circulation branch pipes firstly flows into a circulation pipeline, wherein the diameter of the circulation pipeline is 2-5cm, and the diameter of the circulation branch pipe is 0.5-2 cm. And each circulating branch pipe or circulating pipeline communicated with the bottom of the reactor is provided with a stop valve, so that flexible operation is facilitated. The sewage of the circulating pipeline is finally circulated back to the top end of the reactor, and the end of the pipeline is higher than the highest liquid level of the reactor.
In the invention, the online monitoring water taking pipe is inserted into a monitoring port at the upper part of the side surface of the sampling container, the monitoring port and the water outlet are at the same height and different sides, the lower part of the side surface of the sampling container is also provided with a sampling port which is convenient for collecting water samples, and the distance between the sampling port and the bottom end of the sampling container is 2-5 cm.
The invention also provides a method for treating sewage by using the sewage biological treatment reactor, wherein the sewage enters the reactor to react, the circulating pump is started, the sewage continuously performs external circulation in the circulating pipeline, when sampling or monitoring is required, the circulating pump is closed, the supernatant is collected for analyzing and monitoring a water sample after the sewage is settled in the sampling container for a certain time, the circulating pump is started after sampling is finished, the external circulation is continuously performed, and the operation is repeated until the next sampling time point.
In the method, the sewage is industrial sewage or domestic sewage containing COD, nitrogen, phosphorus and the like. The sewage treatment adopts an activated sludge method or a membrane biological method and the like.
In the method, the sampling period or the on-line monitoring period is 30-60min, and the settling time in the sampling container is generally 10-20 min.
In the method, the flow of the sewage in the circulating pipeline is less than 1/2 of the inflow of the reactor, and if the circulating branch pipes exist, the sum of the flow of each branch pipe is taken as the sewage flow for calculation. The circulating pipeline only plays a part in local circulation and does not influence the liquid level in the reactor or the retention time of the wastewater.
Compared with the prior art, the invention has the following advantages:
(1) in order to ensure the accuracy of monitoring data, a plurality of monitoring ports are usually arranged on the sewage biological treatment reactor along the longitudinal direction, and an average value is taken as a monitoring value. According to the reactor, the external circulation structure is arranged, the accuracy of data can be ensured only by opening one monitoring port, the accuracy of the collected sample is high, the problem that the water taking pipe is easy to block in online monitoring is effectively solved, back washing is not needed, and monitoring is more convenient.
(2) The reactor and the treatment method provided by the invention enhance the back mixing effect of the water body in the device, particularly drive the sludge or thallus circulation of the dead zone at the bottom of the reactor, and are beneficial to improving the sludge treatment effect.
(3) The water sampling has no solid suspended matter, so that the monitoring accuracy is ensured.
(4) The external circulation structure can be connected with various reactors, and the device has the advantages of simple structure, flexible operation and convenient monitoring.
Drawings
FIG. 1 is a schematic view of a bottom elliptical reactor according to the present invention;
FIG. 2 is a schematic view of a reactor having a flat bottom according to the present invention;
wherein: 1-a circulation pipeline, 2-a circulation branch pipe and 3-a water inlet of a sampling container; 4-sampling container, 5-sampling port, 6-monitoring port, 7-sampling container water outlet, 8-pipeline end, 9-reactor and 10-circulating pump.
Detailed Description
The processing apparatus, processing method and effect of the present invention will be further described with reference to fig. 1 and examples. The embodiments are implemented on the premise of the technical scheme of the invention, and detailed implementation modes and specific operation processes are given, but the protection scope of the invention is not limited by the following embodiments.
The sewage biological treatment reactor of the invention is shown in figure 1, and mainly comprises a reactor 9 and an external circulation system, wherein the external circulation system mainly comprises a circulation pipeline 1, a circulation pump 10 and a sampling container 4 which are arranged on the pipeline, sewage is discharged from the bottom of the reactor, flows through the circulation pipeline 1 through the circulation pump 10, enters the sampling container 4 through a water inlet 3 of the sampling container, the sampling container 4 is provided with a sampling port 5 and a monitoring port 6, and returns to the reactor 9 through a water outlet 7 of the sampling container after sampling. The end 8 of the pipeline is positioned above the highest liquid level of the reactor, the online monitoring water taking pipe is placed into the monitoring port 6, and the sampling port 5 is used for taking a water sample.
The sewage treatment method of the invention specifically comprises the following steps: the sewage enters the reactor 1 to react, the circulating pump 10 is started to continuously perform the external circulation of the sewage, when the sampling or monitoring is needed, the circulating pump 10 is closed, the supernatant is collected for the analysis and monitoring of the water sample after the sewage is settled in the sampling container 4 for a certain time, and the circulating pump 10 is started after the sampling is finished to continue the external circulation; and stopping until the next sampling time point, and repeating the operation.
Example 1
The column reactor shown in FIG. 1 was used, and the volume of the reactor was about 1m3The inflow rate of water is 1.2 m3H, the pipe diameter of the circulating pipeline is 2cm, and the flow rate is controlled to be 0.48m3H; the volume of the sampling container is 1L, the height-diameter ratio is 2, the distance between the water outlet and the monitoring port and the top end of the container is 5cm, and the distance between the sampling port and the bottom of the container is 3 cm.
The quality of the sewage to be treated is as follows: the ammonia nitrogen concentration is 60mg/L, the total nitrogen is 80mg/L, and the COD concentration is 30 mg/L. The pH value in the treatment process is controlled to be 7.5-8.5, and the treatment temperature is controlled to be 30-35 ℃.
The sewage treatment adopts an activated sludge method. When sampling or monitoring is needed, the circulating pump is closed, so that after sewage is settled in the sampling container for a certain time, supernatant is collected for analyzing and monitoring a water sample, and after sampling is finished, the circulating pump is started to continue external circulation; by the next sampling time point, the above operation is repeated.
The reactor is utilized to treat sewage, and a circulating pump is started to continuously perform external sewage circulation. Setting the monitoring time period of the online monitoring device to be once every 30min, the sewage sedimentation time to be 10min, the online monitoring sampling time to be 1min, stopping the circulating pump once every 19min, stopping for 11min each time, starting the reaction from 8 am, stopping the circulating pump at 8:19, starting the water intake monitoring at 8:29 online monitoring, starting the circulation of the 8:30 circulating pump, and updating the water in the sampling container; and stopping the 8:49 circulating pump again, monitoring the 8:59 on line to take the water sample again for detection, and circulating the 9:00 circulating pump again, and repeating the steps in sequence. A total of 7 cycles, 7 samples were taken. The test data are shown in table 1.
TABLE 1
Routine sampling of the above TableThe data is the average value of the data of 3 times, and the comparison shows that the difference between the data monitored by the method and the data measured by the average value is very small, which indicates that the detection accuracy of the method is higher and more stable. Suspended matter SS concentration is less than 40mg and L-1It can be seen that the sampled water quality is clear.
In order to verify the treatment effect of the invention on pollutants, the same water quality is subjected to NH discharging after running for 210min under the condition of not starting an external circulation system3-N is 15.3 mg.L-1. Therefore, the external circulation system can enhance the back mixing effect of the water body in the device and improve the sludge activity, thereby enhancing the treatment effect.
Example 2
The column reactor shown in fig. 2 is adopted, a column reactor with a plane bottom surface is adopted, four corners at the bottom are reaction dead zones, four circulation branch pipes 2 are arranged at the four corners at the bottom surface, and the circulation branch pipes are converged into a circulation pipeline 1 at the bottom of the reactor. The volume of the reactor is about 1m3The inflow rate of water is 1.2 m3H, the pipe diameter of the circulating branch pipe is 0.8cm, and the flow rate is controlled to be 0.12 m3H, the pipe diameter of the circulating pipeline is 2cm, and the flow rate is controlled to be 0.48m3H; the volume of the sampling container is 1L, the height-diameter ratio is 2, the distance between the water outlet and the monitoring port and the top end of the container is 5cm, and the distance between the sampling port and the bottom of the container is 3 cm.
The quality of the sewage to be treated is as follows: the ammonia nitrogen concentration is 100mg/L, the total nitrogen is 120mg/L, and the COD concentration is 30 mg/L. The pH value in the treatment process is controlled to be 7.5-8.5, and the treatment temperature is controlled to be 30-35 ℃.
The sewage treatment adopts an activated sludge method. When sampling or monitoring is needed, the circulating pump is closed, so that after sewage is settled in the sampling container for a certain time, supernatant is collected for analyzing and monitoring a water sample, and after sampling is finished, the circulating pump is started to continue external circulation; by the next sampling time point, the above operation is repeated.
The reactor is utilized to treat sewage, and a circulating pump is started to continuously perform external sewage circulation. Setting the monitoring time period of the online monitoring device to be once every 50min, the sewage sedimentation time to be 10min, the sampling time of the online monitoring water taking pipe to be 1min, stopping the circulating pump once every 39min, stopping for 11min each time, starting the reaction from 8 am, stopping the circulating pump at 8:39, starting the water taking monitoring through the online monitoring at 8:49, starting the circulating pump at 8:50 to circulate, and updating the water in the sampling container; and stopping the 9:29 circulating pump again, monitoring the water sample again on line at the ratio of 9:39 for detection, and circulating the 9:40 circulating pump again in sequence. A total of 11 cycles less, 11 samples were taken. The test data are shown in table 2.
TABLE 2
In the table, the conventional sampling data is the average value of the data obtained by 3 times, and the comparison shows that the difference between the data monitored by the method and the data measured by the average value is very small, which indicates that the detection accuracy of the method is higher and more stable. Suspended matter SS concentration is less than 40mg and L-1It can be seen that the sampled water quality is clear.
In order to verify the treatment effect of the invention on pollutants, the same water quality is subjected to NH discharging after 500min of operation under the condition of not starting an external circulation system3-N is 17.1 mg.L-1. Therefore, the external circulation system can enhance the back mixing effect of the water body in the device and improve the sludge activity, thereby enhancing the treatment effect.
Claims (9)
1. A sewage biological treatment reactor is characterized by mainly comprising a reactor body and an external circulation system, wherein the external circulation system mainly comprises a circulation pipeline, a circulation pump and a sampling container;
the reactor is a sewage biological treatment reactor for removing COD, nitrogen and phosphorus, an aeration facility is arranged in the aerobic treatment reactor, and a stirring facility is arranged in the anaerobic treatment reactor;
when the number of the dead zones at the bottom of the reactor is more than one, each dead zone part is provided with a discharge port which is respectively connected with a circulation branch pipe, after an external circulation system is started, sewage of the circulation branch pipes firstly flows into a circulation pipeline, the diameter of the circulation pipeline is 2-5cm, and the diameter of the circulation branch pipe is 0.5-2 cm.
2. The reactor of claim 1, wherein: the sampling container is a cylindrical container, the bottom of the sampling container is an elliptical or conical cylindrical container, the volume of the sampling container is 1-5L, and the height-diameter ratio is 2-5.
3. The reactor of claim 1, wherein: the bottom and the upper part of the side surface of the sampling container are communicated with a circulating pipeline, wastewater enters the sampling container from a water inlet at the bottom and flows out from a water outlet at the side surface of the upper part of the sampling container, the distance between the water outlet and the top of the container is 5-10cm, and the water outlet is higher than the top end of the reactor.
4. The reactor of claim 1, wherein: each circulation branch pipe or circulation pipeline communicated with the bottom of the reactor is provided with a stop valve, sewage of the circulation pipeline is finally circulated back to the top end of the reactor, and the end of the pipeline is higher than the highest liquid level of the reactor.
5. The reactor of claim 1, wherein: the on-line monitoring water intake pipe is inserted into a monitoring port at the upper part of the side surface of the sampling container, the monitoring port and the water outlet are at different sides with the same height, the lower part of the side surface of the sampling container is provided with a sampling port, and the distance between the sampling port and the bottom end of the sampling container is 2-5 cm.
6. A sewage treatment method is characterized in that the sewage treatment method is carried out by using the sewage biological treatment reactor of any one of claims 1 to 5, sewage enters the reactor to react, a circulating pump is started, the sewage continuously carries out external circulation in a circulating pipeline, when sampling or monitoring is needed, the circulating pump is closed, after the sewage is settled in a sampling container for a certain time, supernate is collected for analysis and monitoring of a water sample, the circulating pump is started after sampling is finished, the external circulation is continued, and the operation is repeated until the next sampling time point.
7. The method of claim 6, wherein: the sewage is industrial sewage or domestic sewage containing COD, nitrogen and phosphorus, and the biological sewage treatment adopts an activated sludge method or a membrane biological method.
8. The method of claim 6, wherein: the sampling period or on-line monitoring period is 30-60min, and the settling time in the sampling container is 10-20 min.
9. The method of claim 6, wherein: and the sewage flow in the circulating pipeline is less than 1/2 of the water inlet flow of the reactor, and if circulating branch pipes exist, the sum of the flows of the branch pipes is used as the sewage flow for calculation.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61125498A (en) * | 1984-11-22 | 1986-06-13 | Mitsubishi Electric Corp | Method for controlling bioreactor |
| JPH09155380A (en) * | 1995-12-12 | 1997-06-17 | Kurita Water Ind Ltd | Nitric acid concentration measuring device |
| CN1333084A (en) * | 2001-07-14 | 2002-01-30 | 中国石化集团洛阳石油化工工程公司 | Gas and solid radial reactor for moving-bed |
| CN102072835A (en) * | 2010-11-22 | 2011-05-25 | 杭州凯日环保科技有限公司 | Self-cleaning sand basin |
| WO2011140649A1 (en) * | 2010-05-14 | 2011-11-17 | Corporation Het - Horizon Environnement Technologies | Fermentation process of a substrate using a mixed culture for the production of an edible biomass for animal and/or human consumption |
| CN202188972U (en) * | 2011-08-25 | 2012-04-11 | 句容宁武高新技术发展有限公司 | Online sampling device of reactor |
| CN102557258A (en) * | 2012-02-10 | 2012-07-11 | 中国环境科学研究院 | Improved integrated sewage treatment device |
| CN204286860U (en) * | 2014-12-05 | 2015-04-22 | 山东齐都药业有限公司 | A kind of Amino Acid Compound Injection produces on-line sampler |
| TW201531704A (en) * | 2014-01-10 | 2015-08-16 | Hon Hai Prec Ind Co Ltd | Floating detection device and testing mehtod using same |
| CN205426575U (en) * | 2016-03-25 | 2016-08-03 | 四川同佳环保科技有限责任公司 | Sampler for sewage treatment monitoring system |
| CN106053124A (en) * | 2016-07-13 | 2016-10-26 | 中国科学院地理科学与资源研究所 | Sampling method and device for carbon isotopes in water |
| CN106554079A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of biomembrane denitrogenation method of nitric wastewater |
| WO2018188317A1 (en) * | 2017-04-13 | 2018-10-18 | Paques Environmental Technology (Shanghai) Co., Ltd | Anaerobic reactor and anaerobic wastewater treatment process |
-
2018
- 2018-10-26 CN CN201811255690.XA patent/CN111099720B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61125498A (en) * | 1984-11-22 | 1986-06-13 | Mitsubishi Electric Corp | Method for controlling bioreactor |
| JPH09155380A (en) * | 1995-12-12 | 1997-06-17 | Kurita Water Ind Ltd | Nitric acid concentration measuring device |
| CN1333084A (en) * | 2001-07-14 | 2002-01-30 | 中国石化集团洛阳石油化工工程公司 | Gas and solid radial reactor for moving-bed |
| WO2011140649A1 (en) * | 2010-05-14 | 2011-11-17 | Corporation Het - Horizon Environnement Technologies | Fermentation process of a substrate using a mixed culture for the production of an edible biomass for animal and/or human consumption |
| CN102072835A (en) * | 2010-11-22 | 2011-05-25 | 杭州凯日环保科技有限公司 | Self-cleaning sand basin |
| CN202188972U (en) * | 2011-08-25 | 2012-04-11 | 句容宁武高新技术发展有限公司 | Online sampling device of reactor |
| CN102557258A (en) * | 2012-02-10 | 2012-07-11 | 中国环境科学研究院 | Improved integrated sewage treatment device |
| TW201531704A (en) * | 2014-01-10 | 2015-08-16 | Hon Hai Prec Ind Co Ltd | Floating detection device and testing mehtod using same |
| CN204286860U (en) * | 2014-12-05 | 2015-04-22 | 山东齐都药业有限公司 | A kind of Amino Acid Compound Injection produces on-line sampler |
| CN106554079A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of biomembrane denitrogenation method of nitric wastewater |
| CN205426575U (en) * | 2016-03-25 | 2016-08-03 | 四川同佳环保科技有限责任公司 | Sampler for sewage treatment monitoring system |
| CN106053124A (en) * | 2016-07-13 | 2016-10-26 | 中国科学院地理科学与资源研究所 | Sampling method and device for carbon isotopes in water |
| WO2018188317A1 (en) * | 2017-04-13 | 2018-10-18 | Paques Environmental Technology (Shanghai) Co., Ltd | Anaerobic reactor and anaerobic wastewater treatment process |
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| CN111099720A (en) | 2020-05-05 |
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Effective date of registration: 20231029 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |