CN217535597U - Biochemical treatment system of integrated settling zone - Google Patents
Biochemical treatment system of integrated settling zone Download PDFInfo
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- CN217535597U CN217535597U CN202123355642.8U CN202123355642U CN217535597U CN 217535597 U CN217535597 U CN 217535597U CN 202123355642 U CN202123355642 U CN 202123355642U CN 217535597 U CN217535597 U CN 217535597U
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Abstract
The utility model provides a biochemical treatment system of integrated settling zone, including biochemical pond, integrated aeration equipment, two heavy ponds, mud scraper, biochemical pond outlet pipe, dissolved oxygen appearance, redox potential appearance, agitating unit, air-blower etc. constitute. The biochemical tank is internally provided with a secondary sedimentation tank and is controlled by a dissolved oxygen instrument, an oxidation-reduction potentiometer and a control system. The utility model provides a pair of biochemical treatment system of integrated settling zone accomplishes in same biochemical reaction pond and nitrifies and the denitrification reaction, and this mode has effectually broken the total nitrogen clearance of conventional technology and has been subject to the limitation of backward flow ratio, has improved the clearance of total nitrogen by a wide margin, and this technology need not interior reflux system simultaneously, has saved energy consumption and investment cost, sets up two heavy ponds simultaneously in biochemical pond, the high-efficient construction land used that has utilized. The system has the advantages of simple structure, small occupied area and simple operation.
Description
Technical Field
The utility model discloses a municipal administration sewage treatment field specifically discloses a biochemical treatment system of integrated settling zone.
Background
With the development of cities and the increasing environmental problems, the normal operation of sewage treatment facilities is closely related to the production and operation of various fields of society and the daily life of common people.
The prior sewage treatment technology has the following problems:
the existing mainstream sewage treatment technology realizes the removal of total nitrogen by carrying out nitration and denitrification reactions step by step through a conventional AO or AAO process. Because the two reaction processes are respectively completed in the reactors with different reaction conditions, and the nitrified liquid which completes the nitration reaction is sent to the denitrification reactor in a reflux mode, a complete denitrification process can be completed. Therefore, the nitrification liquid in the nitrification tank can not be completely denitrified no matter how much the reflux is, and the reason that the total nitrogen removal rate of the prior art can not be continuously improved is also determined.
The process occupies a large area, and the construction land can not be effectively utilized, so the biochemical treatment system integrating the settling zone is provided.
SUMMERY OF THE UTILITY MODEL
In view of the above defects or shortcomings in the prior art, the present application aims to provide a biochemical treatment system of an integrated settling zone, which comprises a water inlet pipe, a sludge return pipe, a biochemical tank, an integrated aeration device, a secondary settling tank, a mud scraper, a biochemical tank water outlet pipe, a dissolved oxygen instrument, an oxidation-reduction potential instrument, a secondary settling tank water outlet pipe, a stirring device, a lift pump, a sludge return pump and an air blower, wherein the secondary settling tank, the integrated aeration device and the stirring device are arranged inside the biochemical tank, the integrated aeration device is connected with the air blower through a pipeline and a regulating valve, the sludge return pump sends sludge separated by the secondary settling tank into the biochemical tank, the lift pump sends sewage of the biochemical tank into the secondary settling tank, the dissolved oxygen instrument and the oxidation-reduction potential instrument are arranged at the tail end of the biochemical tank, and send measurement signals into a control system.
Preferably, a circular secondary sedimentation tank is arranged in the center of the biochemical tank, the liquid level of the secondary sedimentation tank is 0.3-0.5m higher than that of the biochemical tank, and the biochemical tank and the secondary sedimentation tank are of a concrete structure or a steel structure.
Preferably, the dissolved oxygen meter and the oxidation-reduction potentiometer transmit measurement data to the control system, and the control system sends instructions to the blower and the stirring device through preset program operation.
Preferably, an integrated aeration device is arranged in the biochemical tank, and the air blower sends air into the integrated aeration device through a pipeline and then releases the air from the aerator to the biochemical tank.
Preferably, the lift pump realizes that the effluent of the biochemical tank is quantitatively conveyed to the secondary sedimentation tank through a flowmeter and a regulating valve on the water outlet pipe of the biochemical tank, and the design flow of the lift pump is 1.2 times of the water inflow.
Preferably, the sludge reflux pump realizes 100% of sludge separated in the secondary sedimentation tank to flow back to the biochemical tank through a flow meter and an adjusting valve on the sludge reflux pipe, and the residual sludge is discharged to the sludge tank at regular time and quantity through a branch pipe electric valve for subsequent treatment.
Preferably, the secondary sedimentation tank is not provided with an inclined pipe or an inclined plate, and the surface load of the secondary sedimentation tank is controlled to be 0.6-0.9m 3 /m 2 *h。
Has the beneficial effects that: a biochemical treatment system of the integrated settling zone;
(1) The utility model provides a biochemical treatment system of integrated settling zone is equipped with two heavy ponds in biochemical pond, can furthest utilize the construction to use ground. The pool shape is simple, the partition walls are few, and a large amount of construction cost is saved.
(2) The utility model provides a biochemical treatment system of integrated settling zone accomplishes COD, BOD, ammonia nitrogen, total nitrogen and total phosphorus's synchronous degradation in coordination in same biochemical pond, has realized nitrifying and denitrifying going on in step, realizes limit denitrification simultaneously. The problems of long process, complex process, high management difficulty, high operation cost and the like of the traditional multistage AO + deep denitrification process are effectively solved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a block diagram of a biochemical processing system integrated with a settling zone.
In the figure: 1-water inlet pipe, 2-sludge reflux pipe, 3-biochemical tank, 4-integrated aeration device, 5-secondary sedimentation tank, 6-mud scraper, 7-biochemical tank water outlet pipe, 8-dissolved oxygen instrument, 9-oxidation reduction potential instrument, 10-secondary sedimentation tank water outlet pipe, 11-stirring device, 12-lift pump, 13-sludge reflux pump and 14-blower.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
The embodiment of the utility model provides an in the attached drawing: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.
Referring to fig. 1, a biochemical treatment system of an integrated settling zone comprises a water inlet pipe 1, a sludge return pipe 2, a biochemical tank 3, an integrated aeration device 4, a secondary settling tank 5, a mud scraper 6, a biochemical tank water outlet pipe 7, a dissolved oxygen instrument 8, an oxidation-reduction potential instrument 9, a secondary settling tank water outlet pipe 10, a stirring device 11, a lift pump 12, a sludge return pump 13 and a blower 14; the biochemical tank 3 is internally provided with a secondary sedimentation tank 5, an integrated aeration device 4 and a stirring device 11, the integrated aeration device 4 is connected with an air blower 14 through a pipeline and a regulating valve, the sludge reflux pump 13 sends sludge separated by the secondary sedimentation tank 5 into the biochemical tank 3, the lift pump 12 sends sewage in the biochemical tank into the secondary sedimentation tank 5, and the dissolved oxygen instrument 8 and the oxidation reduction potential instrument 9 are arranged at the tail end of the biochemical tank 3 and send measurement signals into a control system.
Wherein, a round secondary sedimentation tank 5 is arranged at the center of the biochemical tank 3, the liquid level of the secondary sedimentation tank 5 is 0.3-0.5m higher than that of the biochemical tank 3, and the biochemical tank 3 and the secondary sedimentation tank 5 are of a concrete structure or a steel structure.
The dissolved oxygen instrument 8 and the oxidation-reduction potentiometer 9 transmit measured data to a control system, and the control system sends an instruction to the air blower 14 and the stirring device 11 through preset program operation, so that the air blower 14 and the stirring device 11 cooperatively operate to realize quantitative aeration according to requirements, maintain the synchronous denitrification environment of the system, achieve the dynamic balance of nitrification and denitrification, and effectively remove pollutants such as total nitrogen.
Wherein, set up integrated aeration equipment 4 in biochemical pond 3, air blower 14 sends the air into integrated aeration equipment 4 through the pipeline, releases the air to biochemical pond 3 from the aerator again, reaches the purpose that the microorganism supported, and integrated design can conveniently be taken out maintenance or change simultaneously.
The lift pump 12 realizes the quantitative delivery of the effluent of the biochemical tank 3 to the secondary sedimentation tank 5 through a flowmeter and a regulating valve on the water outlet pipe 7 of the biochemical tank, and the design flow of the lift pump is 1.2 times of the water inflow.
Wherein, the sludge reflux pump 13 realizes 100 percent of sludge separated by the secondary sedimentation tank 5 to flow back to the biochemical tank 3 through a flow meter and a regulating valve on the sludge reflux pipe 2, and the residual sludge is discharged to the sludge tank for subsequent treatment at regular time and quantity through a branch pipe electric valve.
Wherein, the secondary sedimentation tank 5 is not provided with an inclined pipe/an inclined plate and the like, and the surface load is controlled to be 0.6-0.9m3/m2 x h.
The utility model discloses well domestic sewage gets into biochemical treatment system's operation process does: biochemical sewage enters a biochemical pool 3 through a water inlet channel 1 after pretreatment, stays in the biochemical pool 3 for 10-15 hours, and under the control of a dissolved oxygen instrument 8, an oxidation-reduction potentiometer 9 and a control system, a stirring device 11 of the biochemical pool 3 and an integrated aeration device 4 can realize cooperative operation to realize uniform aeration and homogenization as required to carry out synchronous nitrification and denitrification. The sewage then enters the secondary sedimentation tank 5 quantitatively through the lifting pump 12, the water outlet pipe 7 of the biochemical tank and flow control, sludge-water separation is carried out in the secondary sedimentation tank 5, clear liquid at the upper part of the secondary sedimentation tank 5 is discharged through the water outlet cofferdam and the water outlet pipe 10 of the secondary sedimentation tank, and sludge at the bottom of the secondary sedimentation tank 5 quantitatively flows back to the biochemical tank 3 through the flow meter under the action of the sludge reflux pump 13. And simultaneously discharging the residual sludge into a sludge tank through an automatic valve for further treatment.
The utility model provides an among the biochemical treatment system of integrated settling zone, be equipped with integrated aeration systems 4 and agitating unit 11, can promote and maintain on line.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. The biochemical treatment system is characterized in that the biochemical treatment system is provided with a secondary sedimentation tank (5), an integrated aeration device (13) and an air blower (14) inside the biochemical tank (3), the integrated aeration device (4) is connected with the air blower (14) through a pipeline and a regulating valve, the sludge reflux pump (13) sends sludge separated by the secondary sedimentation tank (5) into the biochemical tank (3), the lifting pump (12) sends biochemical tank sewage into the secondary sedimentation tank (5), and the dissolved oxygen instrument (8) and the oxidation reduction potential instrument (9) are arranged at the tail end of the biochemical tank (3) and send measurement signals into the control system.
2. The biochemical processing system of an integrated settling zone of claim 1, wherein: the center of the biochemical pool (3) is provided with a circular secondary sedimentation pool (5), the liquid level of the secondary sedimentation pool (5) is 0.3-0.5m higher than that of the biochemical pool (3), and the biochemical pool (3) and the secondary sedimentation pool (5) are of a concrete structure or a steel structure.
3. The biochemical processing system of an integrated settling zone, according to claim 1, wherein: the dissolved oxygen instrument (8) and the oxidation-reduction potentiometer (9) transmit measurement data to the control system, and the control system sends instructions to the blower (14) and the stirring device (11) through preset program operation.
4. The biochemical processing system of an integrated settling zone, according to claim 1, wherein: an integrated aeration device (4) is arranged in the biochemical tank (3), and an air blower (14) sends air into the integrated aeration device (4) through a pipeline and then releases the air from an aerator to the biochemical tank (3).
5. The biochemical processing system of an integrated settling zone, according to claim 1, wherein: the lift pump (12) realizes that the effluent of the biochemical pool (3) is quantitatively conveyed to the secondary sedimentation pool (5) through a flowmeter and a regulating valve on the water outlet pipe (7) of the biochemical pool, and the design flow of the lift pump (12) is 1.2 times of the water inflow.
6. The biochemical processing system of an integrated settling zone, according to claim 1, wherein: the sludge reflux pump (13) realizes 100 percent of sludge separated by the secondary sedimentation tank (5) to flow back to the biochemical tank (3) through a flow meter and a regulating valve on the sludge reflux pipe (2), and residual sludge is discharged into the sludge tank at regular time and quantity through an electric valve of the branch pipe for subsequent treatment.
7. The biochemical processing system of an integrated settling zone, according to claim 1, wherein: the secondary sedimentation tank (5) is not provided with an inclined pipe or an inclined plate, and the surface load is controlled to be 0.6-0.9m 3 /m 2 *h。
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| CN202123355642.8U CN217535597U (en) | 2021-12-28 | 2021-12-28 | Biochemical treatment system of integrated settling zone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105305A (en) * | 2021-12-28 | 2022-03-01 | 中麒水务科技(深圳)有限公司 | Biochemical treatment system of integrated settling zone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105305A (en) * | 2021-12-28 | 2022-03-01 | 中麒水务科技(深圳)有限公司 | Biochemical treatment system of integrated settling zone |
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Effective date of registration: 20230605 Address after: Zone 3-5, 3rd Floor, No. 218 Shugang Avenue, Aotou, Daya Bay, Huizhou City, Guangdong Province, 516000 Patentee after: Guangdong Huaqing Double Carbon Environmental Technology Co.,Ltd. Patentee after: Zhongqi water technology (Shenzhen) Co.,Ltd. Address before: 518102 business building 1609, building a, yonghuayuan, No. 6, Baotian Second Road, chentian community, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee before: Zhongqi water technology (Shenzhen) Co.,Ltd. |