CN113651405A - Ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment - Google Patents
Ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment Download PDFInfo
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- CN113651405A CN113651405A CN202110935391.6A CN202110935391A CN113651405A CN 113651405 A CN113651405 A CN 113651405A CN 202110935391 A CN202110935391 A CN 202110935391A CN 113651405 A CN113651405 A CN 113651405A
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- sedimentation tank
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- industrial sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2209/40—Liquid flow rate
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to an ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment, which comprises: the system comprises a medicine feeding system, a water feeding system, a coagulation tank, a flocculation tank, a sedimentation tank, a sludge backflow system and a sludge discharge system; the output end of the medicine feeding system is connected with the flocculation tank; the output end of the water inlet system is connected with the coagulation tank; the sedimentation tank is arranged at the rear end of the flocculation tank; a return pipeline and a discharge pipeline are arranged at the lower end of the sedimentation tank; the sludge backflow system is arranged on the backflow pipeline; the sludge discharge system is arranged on the discharge pipeline; a stirrer is arranged in the coagulation tank and the flocculation tank; and a mud scraper is arranged in the sedimentation tank. The invention interlocks with the metering pump on the chemical feeding system through the flow control valve, the chemical feeding amount is more accurate, the index of effluent suspended matter is stable, the effluent quality is improved, and the metering pump interlocks with the sludge reflux pump and the sludge discharge pump, so that the effluent effect and the effluent quality are ensured.
Description
Technical Field
The invention relates to the field of industrial sewage treatment, in particular to an intelligent high-density sedimentation tank device for ozone catalytic pretreatment for industrial sewage treatment.
Background
The main technology of the high-density sedimentation tank is a carrier flocculation technology, which is a rapid sedimentation technology and is characterized in that high-density insoluble medium particles (such as fine sand) are added in a coagulation stage, and the growth and sedimentation of flocs are accelerated by utilizing the gravity sedimentation of the medium and the adsorption of the carrier.
The U.S. EPA defines ballasted flocculation as a physicochemical treatment process that improves settling properties of suspended matter in water by enhancing floc adsorption using constantly circulating media particles and various chemical agents. The working principle of the method is that firstly coagulant (such as polyaluminium chloride) is added into water to destabilize suspended matters and colloidal particles in the water, then polymer coagulant aid and carrier particles with higher density are added to ensure that the destabilized impurity particles take the carrier as a core, and alum flocs with higher density are rapidly generated through the bridging adsorption effect of polymer chains and the deposition and net-catching effect of micro-sand particles, so that the settling time is greatly shortened, the treatment capacity of a clarification tank is improved, and high impact load is effectively responded. Compared with the traditional flocculation process, the technology has the advantages of small occupied area, low engineering cost, impact load resistance and the like. The traditional high-density sedimentation tank is widely applied to ozone catalytic oxidation pretreatment in industrial sewage to reduce suspended matters, colloids, total phosphorus and other substances in the sewage, so that SS in the sewage can be reduced to be within 20mg/L, and the total phosphorus can be reduced to be within 0.5 mg/L. The process has wide application, and can improve the water quality condition to a greater extent by matching with the ozone catalytic oxidation technology. However, the following problems occur in the prior art: the retention time of water in the tank is short, and if the amount of the incoming water changes, operators can hardly adjust the operation condition in time, so that the effluent suspended matters and colloidal substances exceed the standard, and the pretreatment effect and the subsequent treatment process are influenced; the sludge amount in unit area is increased, sludge discharge is not adjusted timely, sludge return is generated, the effluent quality is deteriorated, and the pretreatment effect and the subsequent treatment process are influenced; the pipe diameter of the inclined pipe is small, and sludge accumulation in the pipe is easy to cause after the sludge floats upwards due to change of working conditions, so that the inclined pipe is seriously deformed; the dosage and the PH value can not be controlled and accurately added, which causes unstable indexes of effluent suspended matters and worsened effluent quality. Therefore, an ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment, which has high dosing accuracy and effectively improves the sewage treatment effect, is needed.
Disclosure of Invention
The invention aims to provide an intelligent high-density sedimentation tank device for ozone catalytic pretreatment for industrial sewage treatment, which has high dosing accuracy and effectively improves the sewage treatment effect.
In order to ensure that the work is stable and the work precision is high in the using process, the invention relates to an ozone catalytic pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment, which comprises:
the system comprises a medicine feeding system, a water feeding system, a coagulation tank, a flocculation tank, a sedimentation tank, a sludge backflow system and a sludge discharge system;
the output end of the medicine feeding system is connected with the flocculation tank; the output end of the water inlet system is connected with the coagulation tank; the sedimentation tank is arranged at the rear end of the flocculation tank; a return pipeline and a discharge pipeline are arranged at the lower end of the sedimentation tank; the sludge backflow system is arranged on the backflow pipeline; the sludge discharge system is arranged on the discharge pipeline; a stirrer is arranged in the coagulation tank and the flocculation tank; and a mud scraper is arranged in the sedimentation tank.
The invention has the advantages that the dosing quantity can be accurately controlled and fed according to the change of the inflow water quantity by interlocking the flow regulating valve with the metering pump on the dosing system, the index of the effluent suspended matters is stable, the effluent quality is improved, the metering pump is interlocked with the sludge reflux pump and the sludge discharge pump, the dosing quantity is regulated according to the reflux sludge quantity, the increase of the sludge quantity in unit area is prevented, the sludge discharge adjustment is not timely, the sludge return phenomenon is generated, the effluent quality is deteriorated, and the pretreatment effect and the subsequent treatment process are influenced.
Furthermore, the medicine feeding system comprises a PAM solution dosing device and a ferric trichloride solution dosing device; PAM solution charge device, ferric trichloride solution charge device are independent input pipeline. Through the design of independent input pipeline, can avoid mixing in advance of different solutions, guarantee the independence of adding the medicine, also can control different charge devices and add the medicine at different times, the accuracy is higher.
Further, the water inlet system comprises a sewage water adding device and a backflow backwashing drainage water adding device; the output end of the backflow backwashing water discharging and adding device is connected with the output end of the sewage water adding device. Through the connection of different output ends, guarantee that it begins mixing and fusing in getting into the coagulation basin for the working effect.
Further, the coagulation basin is arranged at the front end of the flocculation basin.
Furthermore, electromagnetic flow meters are arranged on the water inlet system and the sludge return system. The water inlet quantity condition of the monitoring device and the flow condition of the returned sludge of the monitoring device are respectively monitored by the electromagnetic flow meter.
Furthermore, a metering pump is arranged on the medicine feeding system; a sludge reflux pump is arranged on the sludge reflux system; and a sludge discharge pump is arranged on the sludge discharge system. Through different pump designs, guarantee the stability of mud backward flow and emission.
Furthermore, a waste water discharge device is arranged at the rear end of the sedimentation tank. The generated wastewater is discharged from the water outlet groove through the wastewater discharge device and enters a subsequent treatment unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a structural diagram of an intelligent high-density sedimentation tank device for ozone catalytic pretreatment for industrial sewage treatment according to the present invention.
The corresponding part names indicated by the numbers in the figures:
1. a drug feeding system; 2. a water intake system; 3. a coagulation tank; 4. a flocculation tank; 5. a sedimentation tank; 6. a sludge return system; 7. a sludge discharge system; 8. a return line; 9. a discharge conduit; 10. a blender; 11. a mud scraper; 12. PAM solution dosing device; 13. a ferric trichloride solution dosing device; 14. a sewage water adding device; 15. a water adding device for back washing and draining water; 16. an electromagnetic flow meter; 17. a metering pump; 18. a sludge reflux pump; 19. a sludge discharge pump; 20. a waste water discharge device.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
the invention aims to provide an intelligent high-density sedimentation tank device for ozone catalytic pretreatment for industrial sewage treatment, which has high dosing accuracy and effectively improves the sewage treatment effect.
As shown in figure 1, in order to ensure stable work and high work precision in the using process, the invention relates to an intelligent high-density sedimentation tank device for ozone catalytic pretreatment for industrial sewage treatment, which comprises:
the system comprises a medicine feeding system 1, a water feeding system 2, a coagulation tank 3, a flocculation tank 4, a sedimentation tank 5, a sludge backflow system 6 and a sludge discharge system 7;
the output end of the medicine feeding system 2 is connected with the flocculation tank 4; the output end of the water inlet system 2 is connected with the coagulation tank 3; the sedimentation tank 5 is arranged at the rear end of the flocculation tank 4; the lower end of the sedimentation tank 5 is provided with a return pipeline 8 and a discharge pipeline 9; the sludge return system 6 is arranged on a return pipeline 8; the sludge discharge system 7 is arranged on the discharge pipeline 9; a stirrer 10 is arranged in the coagulation tank 3 and the flocculation tank 4; a mud scraper 11 is arranged in the sedimentation tank 5.
The invention has the advantages that the dosing quantity can be accurately controlled and fed according to the change of the inflow water quantity by interlocking the flow regulating valve with the metering pump 17 on the dosing system 1, the index of the effluent suspended matters is stable, the effluent water quality is improved, the metering pump 17 is interlocked with the sludge reflux pump 18 and the sludge discharge pump 19, the dosing quantity is regulated according to the reflux sludge quantity, the sludge quantity in unit area is prevented from increasing, the sludge discharge is not adjusted in time, the sludge return phenomenon is generated, the effluent water quality is deteriorated, and the pretreatment effect and the subsequent treatment process are influenced.
In actual operation, all be equipped with various control valves in each system, the control valve includes ball valve, butterfly valve, flow control valve, check valve, case valve, and the valve selection of specific each system is: v1, ball valve; v2: a ball valve; v3: a butterfly valve; v4: a butterfly valve; v5: a flow regulating valve; v6: a butterfly valve; v7: a ball valve; v8: a check valve; v9: a cartridge valve; v10: a butterfly valve; v11: a ball valve; v12: a check valve; v13: a cartridge valve; v14: a butterfly valve; v15: a ball valve; v16: a check valve; v17: a cartridge valve; v18: a butterfly valve; v19: a ball valve; v20: a check valve; v21: a cartridge valve; v22: a cartridge valve.
Further, the medicine feeding system 1 comprises a PAM solution dosing device 12 and an iron trichloride solution dosing device 13; PAM solution charge device 12, iron trichloride solution charge device 13 are independent input pipeline. Through the design of independent input pipeline, can avoid mixing in advance of different solutions, guarantee the independence of adding the medicine, also can control different charge devices and add the medicine at different times, the accuracy is higher.
Further, the water inlet system 2 comprises a sewage water adding device 14 and a backflow backwashing drainage water adding device 15; the output end of the backflow backwashing water discharging and adding device 15 is connected with the output end of the sewage water adding device 14. Through the connection of different output ends, the mixing and fusion of the concrete in the coagulation tank 3 are ensured, and the working effect is accelerated.
Further, the coagulation tank 3 is arranged at the front end of the flocculation tank 4.
Furthermore, electromagnetic flow meters 16 are arranged on the water inlet system 2 and the sludge return system 6. The water inlet amount of the apparatus and the flow rate of the sludge returned by the apparatus are monitored by the electromagnetic flowmeter 16.
Further, a metering pump 17 is arranged on the medicine feeding system 1; a sludge reflux pump 18 is arranged on the sludge reflux system 6; and a sludge discharge pump 19 is arranged on the sludge discharge system 7. Through different pump designs, guarantee the stability of mud backward flow and emission.
Further, a waste water discharge device 20 is arranged at the rear end of the sedimentation tank 5. The produced waste water is discharged from the effluent tank into a subsequent treatment unit through a waste water discharge device 20.
In actual operation, PAM solution passes through PAM solution charge device 12 and gets into flocculation basin 4 through the control of measuring pump 17 on its independent input pipeline, ferric trichloride solution passes through ferric trichloride solution charge device 13 and gets into flocculation basin 4 through measuring pump 17 on its independent input pipeline, biochemical treatment unit water supply and backward flow backwash drainage are respectively through sewage water adding device 14, the control of backward flow backwash drainage water adding device 15 gets into coagulation basin 3, and coagulate under the mixer 10 in coagulation basin 3, the back is gone into and is coagulated with the medicament under the mixer 10 effect in flocculation basin 4, get into sedimentation in sedimentation tank 5 again, the mud of production is got rid of by mud scraper 11. A part of the generated sludge enters a flocculation area through a sludge reflux pump 18, and the reflux ratio is 15%; a part of the sludge is directly discharged by the sludge discharge pump 19. The generated wastewater is discharged into a subsequent treatment unit by a wastewater discharge device. The metering pump 17, the sludge reflux pump 18 and the sludge discharge pump 19 are all variable frequency pumps.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An ozone catalytic pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment is characterized by comprising a medicine feeding system, a water feeding system, a coagulation tank, a flocculation tank, a sedimentation tank, a sludge reflux system and a sludge discharge system;
the output end of the medicine feeding system is connected with the flocculation tank; the output end of the water inlet system is connected with the coagulation tank; the sedimentation tank is arranged at the rear end of the flocculation tank; a return pipeline and a discharge pipeline are arranged at the lower end of the sedimentation tank; the sludge backflow system is arranged on the backflow pipeline; the sludge discharge system is arranged on the discharge pipeline; a stirrer is arranged in the coagulation tank and the flocculation tank; and a mud scraper is arranged in the sedimentation tank.
2. The intelligent ozone catalytic pretreatment high-density sedimentation tank device for industrial sewage treatment as claimed in claim 1, wherein: the medicine feeding system comprises a PAM solution dosing device and an iron trichloride solution dosing device; PAM solution charge device, ferric trichloride solution charge device are independent input pipeline.
3. The intelligent ozone catalytic pretreatment high-density sedimentation tank device for industrial sewage treatment as claimed in claim 1, wherein: the water inlet system comprises a sewage water adding device and a backflow backwashing water discharging and adding device; the output end of the backflow backwashing water discharging and adding device is connected with the output end of the sewage water adding device.
4. The intelligent ozone catalytic pretreatment high-density sedimentation tank device for industrial sewage treatment as claimed in claim 1, wherein: the coagulation tank is arranged at the front end of the flocculation tank.
5. The intelligent ozone catalytic pretreatment high-density sedimentation tank device for industrial sewage treatment as claimed in claim 1, wherein: and the water inlet system and the sludge backflow system are provided with electromagnetic flow meters.
6. The intelligent ozone catalytic pretreatment high-density sedimentation tank device for industrial sewage treatment as claimed in claim 1, wherein: a metering pump is arranged on the medicine feeding system; a sludge reflux pump is arranged on the sludge reflux system; and a sludge discharge pump is arranged on the sludge discharge system.
7. The intelligent ozone catalytic pretreatment high-density sedimentation tank device for industrial sewage treatment as claimed in claim 1, wherein: and a waste water discharge device is arranged at the rear end of the sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935391.6A CN113651405A (en) | 2021-08-16 | 2021-08-16 | Ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935391.6A CN113651405A (en) | 2021-08-16 | 2021-08-16 | Ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment |
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| Publication Number | Publication Date |
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| CN113651405A true CN113651405A (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110935391.6A Pending CN113651405A (en) | 2021-08-16 | 2021-08-16 | Ozone catalysis pretreatment intelligent high-density sedimentation tank device for industrial sewage treatment |
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| CN (1) | CN113651405A (en) |
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2021
- 2021-08-16 CN CN202110935391.6A patent/CN113651405A/en active Pending
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