CN112794562A - Rural domestic sewage treatment integrated device - Google Patents
Rural domestic sewage treatment integrated device Download PDFInfo
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- CN112794562A CN112794562A CN202011567380.9A CN202011567380A CN112794562A CN 112794562 A CN112794562 A CN 112794562A CN 202011567380 A CN202011567380 A CN 202011567380A CN 112794562 A CN112794562 A CN 112794562A
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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
- C02F9/00—Multistage treatment of water, waste water or 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/18—PO4-P
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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
- C02F2303/04—Disinfection
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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
- C02F3/005—Combined electrochemical biological 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a rural domestic sewage treatment integrated device, which comprises an anaerobic tank, an anoxic tank, an aerobic tank, a first-stage sedimentation tank, a flocculation tank and a second-stage sedimentation tank which are connected in sequence, wherein an electrolytic phosphorus removal device is arranged in the anaerobic tank, an aeration device is arranged in the aerobic tank, a reflux pump is arranged at the bottom of the aerobic tank, the reflux pump is communicated with the anoxic tank through a pipeline, a sludge reflux pump is connected at the bottom of the first-stage sedimentation tank, the sludge reflux pump is communicated with the anaerobic tank through a pipeline, a sludge discharge pump is arranged at the bottom of the second-stage sedimentation tank, and a water outlet is arranged on the second-stage sedimentation tank. Simple structure and convenient operation.
Description
Technical Field
The invention relates to the technical field of domestic sewage treatment equipment, in particular to a rural domestic sewage treatment integrated device.
Background
In recent years, the economic development is accompanied by rapid increase of domestic and industrial sewage discharge and rapid aggravation of environmental pollution. With the ten pieces of promulgation of national water, the urban water pollution problem is further eliminated and solved, and the ecological environment management is obviously enhanced. However, the construction of rural infrastructure lags behind the development of urban construction, and the problem of rural domestic sewage becomes a significant challenge for restricting the ecological civilization construction of the new era due to the lack of necessary sewage collecting and treating facilities.
At present, the special construction standard of rural domestic sewage treatment engineering is still incomplete, and most of rural domestic sewage treatment devices apply primary A standard and technical modes thereof in urban' pollutant discharge Standard for municipal wastewater treatment plant GB18918-2002, such as an integrated MBR device (2017102783550), an integrated SBBR device (201811627869.3), an integrated AAO device (201811385437.6) and the like. However, the discharge characteristics of rural and urban sewage are greatly different, and the requirements on the sewage treatment technology are different.
In 2019 and 2020, a series of regional standards of rural domestic sewage treatment facility water pollutant discharge standards are densely distributed, such as DB11/1612 in Beijing City, DB32/3462 in Jiangsu province, DB34/3527 in Anhui province, DB 51/2626-2019 in Sichuan province. The standard is officially implemented in fourteen-five periods, but most rural sewage treatment devices in the current market cannot well adapt to the local standard conditions. The integrated device applying the first-class A standard of the town GB18918-2002 mostly adopts excessive medicine adding and filtering as a deep treatment unit, and has complex operation and high operation cost.
Disclosure of Invention
The invention aims to provide a rural domestic sewage treatment integrated device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a rural domestic sewage handles integrated device, is including the anaerobism pond, oxygen deficiency pond, good oxygen pond, one section sedimentation tank, flocculation basin, the two-stage process sedimentation tank that connect gradually, be equipped with electrolysis phosphorus removal device in the anaerobism pond, be equipped with aeration equipment in the good oxygen pond, good oxygen bottom of the pool portion is equipped with the backwash pump, the backwash pump pass through the pipeline with oxygen deficiency pond intercommunication, one section sedimentation tank bottom is connected with the mud backwash pump, the mud backwash pump pass through the pipeline with anaerobism pond intercommunication, two-stage process sedimentation tank bottom is equipped with the sludge discharge pump, be equipped with the delivery port on the two-stage process sedimentation tank.
As a further scheme of the invention: the bottom of the anaerobic tank and the bottom of the anoxic tank are both provided with submersible stirrers.
As a further scheme of the invention: the electrolytic phosphorus removal device adopts a double-aluminum electrode plate, an external power supply is an intelligent adjustable direct-current power supply, and a time relay is adopted to switch the positive electrode and the negative electrode of the electrode plate at regular time.
As a further scheme of the invention: an equipment room is arranged at the rear end of the two-section sedimentation tank, and a fan, ultraviolet disinfection equipment and dosing equipment are arranged in the equipment room.
As a further scheme of the invention: the fan is communicated with an aeration device in the aerobic tank through an air pipe.
As a further scheme of the invention: the ultraviolet disinfection equipment is communicated with a water outlet on the second-section sedimentation tank.
As a further scheme of the invention: the dosing equipment is communicated with the flocculation tank.
As a further scheme of the invention: the lower ends of the first section sedimentation tank and the second section sedimentation tank are respectively provided with a plurality of perforated mud hoppers, and the sludge reflux pump and the sludge discharge pump are respectively communicated with the perforated mud hoppers at the lower ends of the first section sedimentation tank and the second section sedimentation tank.
As a further scheme of the invention: and a plurality of vertical water inlet cylinders are arranged in the first section of sedimentation tank, and a plurality of inclined plates are arranged in the second section of sedimentation tank.
As a further scheme of the invention: and a sludge pump room is arranged below the flocculation tank, and the sludge reflux pump and the sludge discharge pump are both positioned in the sludge pump room.
Compared with the prior art, the invention has the beneficial effects that:
1. the application adopts a triple coupling process of biological phosphorus removal, electrolytic phosphorus removal and chemical phosphorus removal. The effluent TP of the secondary biochemical unit is stabilized below 0.5mg/L through biological phosphorus removal and electrolytic phosphorus removal, and the advanced treatment unit adopts chemical phosphorus removal as a control process. The method overcomes the defect of excessive dosing of the traditional device while realizing efficient phosphorus removal, and greatly reduces the cost of operating manpower.
2. This application adopts two sections vertical current precipitations of modified as advanced treatment process, has both avoided adopting traditional filtration technology, simple structure, convenient operation, and the operation human cost is lower, again through optimizing one section sedimentation tank and intaking and arrange the mud mode, adopts the stationary flow of many cylinders to intake and the perforation of many buckets to arrange mud, rationally combines two sections vertical current precipitators.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
In the figure: 1-anaerobic tank, 2-anoxic tank, 3-aerobic tank, 4-first section sedimentation tank, 5-flocculation tank, 6-sludge pump room, 7-second section sedimentation tank, 8-equipment room, 9-submersible stirrer, 10-electrolytic dephosphorization device, 11-aeration device, 12-reflux pump, 13-blower, 14-ultraviolet disinfection equipment, 15-dosing equipment, 16-sludge reflux pump, 17-inclined plate and 18-sludge discharge pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in the embodiment of the invention, an integrated device for rural domestic sewage treatment is characterized by comprising an anaerobic tank 1, an anoxic tank 2, an aerobic tank 3, a first-stage sedimentation tank 4, a flocculation tank 5, a second-stage sedimentation tank 7 and an equipment room 8 which are connected in sequence, wherein a fan 13, an ultraviolet disinfection device 14 and a dosing device 15 are arranged in the equipment room 8, an electrolytic phosphorus removal device 10 is arranged in the anaerobic tank 1, the electrolytic phosphorus removal device adopts a double-aluminum electrode plate, an external power supply is an intelligent adjustable direct-current power supply, the positive electrode and the negative electrode of the electrode plate are switched at regular time by adopting a time relay, in the embodiment, the plate interval is 5-40 mm, the external power supply is an intelligent adjustable direct-current power supply, the power supply voltage is 2-10 v. The bottom of the anaerobic tank 1 and the bottom of the anoxic tank 2 are both provided with a submersible stirrer 9, the aerobic tank 3 is internally provided with an aeration device 11, a fan 13 is communicated with the aeration device 11 in the aerobic tank 3 through an air pipe, the bottom of the aerobic tank 3 is provided with a reflux pump 12, the reflux pump 12 is communicated with the anoxic tank 2 through a pipeline, a plurality of vertical water inlet cylinders are arranged in the first section of sedimentation tank 4, the bottom of the first section of sedimentation tank 4 is connected with a sludge reflux pump 16, the sludge reflux pump 16 is communicated with the anaerobic tank 1 through a pipeline, a dosing device 15 is communicated with the flocculation tank 5, the bottom of the second section of sedimentation tank 7 is provided with a sludge discharge pump 18, the lower ends of the first section of sedimentation tank 4 and the second section of sedimentation tank 7 are both provided with a plurality of perforated sludge hoppers, the sludge reflux pump 16 and the sludge discharge pump 18 are respectively communicated with the perforated sludge hoppers at the lower ends of the first section of sedimentation tank 4 and the, a water outlet is arranged on the second-stage sedimentation tank 7, the ultraviolet disinfection equipment 14 is communicated with the water outlet on the second-stage sedimentation tank 7, an inclined plate 17 is also arranged in the second-stage sedimentation tank 7, and the inclined plate 17 can be replaced by an inclined pipe.
When the device is used, sewage firstly enters the anaerobic tank 1 and is mixed with activated sludge refluxed by the sludge reflux pump 16, on one hand, the refluxed activated sludge in the anaerobic tank 1 releases phosphorus in an anaerobic environment, and on the other hand, Al3+ released by the anode of the electrolytic phosphorus removal device 10 in the electrolysis process reacts with phosphate radical of inlet water and phosphate radical released in the refluxed sludge to generate insoluble aluminum salt, so that the effects of synchronously releasing phosphorus and removing phosphorus are achieved. The sewage sequentially enters the anoxic tank 2 and the aerobic tank 3, and aerobic biochemical reaction is carried out in the aerobic tank 3 under the action of the aeration device 11, so that organic matters and ammonia nitrogen are degraded. The return pump 12 at the tail end of the aerobic tank 3 returns the mixed liquid to the anoxic tank 2 for denitrification, so that the effect of removing total nitrogen is achieved. Then, water from the aerobic tank 3 flows to the first-stage sedimentation tank 4 to realize mud-water separation through multi-cylinder steady-flow water inlet, sludge in the bottom hopper of the first-stage sedimentation tank 4 returns to the anaerobic tank 1 through a sludge reflux pump 16 in a sludge pump room 6, and the sludge concentration of the system is ensured to be in a stable state. After primary separation, the sewage reaches a flocculation tank 5 for mixing and flocculation, then reaches a second-stage sedimentation tank 7, and is subjected to sludge-water separation again under the action of a high-efficiency inclined pipe or an inclined plate. Finally, the water outlet is stable through the ultraviolet disinfection equipment 14, the water quality of the water outlet meets the requirements of the first-class A emission of the local standard, such as the rural domestic sewage treatment facility water pollutant emission standard DB 32/3462-.
In the embodiment, a triple coupling process of biological phosphorus removal, electrolytic phosphorus removal and chemical phosphorus removal is adopted, the electrolytic phosphorus removal facility is embedded in the biochemical unit, the biochemical unit has the advantages of biological phosphorus removal and electrolytic phosphorus removal, the effluent TP of the secondary biochemical unit can be stabilized below 0.5mg/L, and the chemical phosphorus removal is adopted as a gate-control process in the subsequent advanced treatment unit, so that the phosphorus removal agent is added with a small amount while the method realizes efficient phosphorus removal, and the operation labor cost is greatly reduced.
Meanwhile, the deep treatment unit of the device adopts a two-section vertical flow precipitation process. On one hand, compared with the filtering process adopted by the traditional device, the device has the advantages of simple structure, convenience in operation and lower operation labor cost; on the other hand, in order to ensure the treatment effect of the sedimentation tank, the vertical flow sedimentation process (such as a vertical flow sedimentation tank, an inclined tube/inclined plate sedimentation tank) generally has a relatively deep tank body, is practically limited by the overflowing water head factor, and is difficult to combine a plurality of vertical flow sedimentation units, while the embodiment reasonably combines two sections of vertical flow sedimentation units by optimizing the water inlet and sludge discharge mode of the first section sedimentation tank 4, adopting multi-cylinder steady-flow water inlet and multi-bucket perforation sludge discharge.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a rural domestic sewage handles integrated device, its characterized in that, including anaerobic tank (1), oxygen deficiency pond (2), good oxygen pond (3), one section sedimentation tank (4), flocculation basin (5), two-stage process sedimentation tank (7) that connect gradually, be equipped with electrolysis phosphorus removal device (10) in anaerobic tank (1), be equipped with aeration equipment (11) in good oxygen pond (3), good oxygen pond (3) bottom is equipped with backwash pump (12), backwash pump (12) through the pipeline with oxygen deficiency pond (2) intercommunication, one section sedimentation tank (4) bottom is connected with mud backwash pump (16), mud backwash pump (16) through the pipeline with anaerobic tank (1) intercommunication, two-stage process sedimentation tank (7) bottom is equipped with mud drainage pump (18), be equipped with the delivery port on two-stage process sedimentation tank (7).
2. The rural domestic sewage treatment integrated device according to claim 1, wherein the bottom of the anaerobic tank (1) and the bottom of the anoxic tank (2) are both provided with a submersible stirrer (9).
3. The rural domestic sewage treatment integrated device of claim 1, wherein the electrolysis and phosphorus removal device employs a double aluminum electrode plate, the external power supply is an intelligent adjustable direct current power supply, and a time relay is employed to switch the positive electrode and the negative electrode of the electrode plate in a timing manner.
4. The rural domestic sewage treatment integrated device according to claim 1, wherein an equipment room (8) is arranged at the rear end of the second-stage sedimentation tank (7), and a fan (13), an ultraviolet disinfection device (14) and a dosing device (15) are arranged in the equipment room (8).
5. The rural domestic sewage treatment integrated device according to claim 4, wherein the blower (13) is communicated with the aeration device (11) in the aerobic tank (3) through an air pipe.
6. The rural domestic sewage treatment integrated device according to claim 4, wherein the ultraviolet disinfection equipment (14) is communicated with a water outlet on the second-stage sedimentation tank (7).
7. The rural domestic sewage treatment integrated device according to claim 4, wherein the dosing equipment (15) is communicated with the flocculation tank (5).
8. The rural domestic sewage treatment integrated device according to claim 1, wherein a plurality of perforated sludge discharge hoppers are arranged at the lower ends of the first-stage sedimentation tank (4) and the second-stage sedimentation tank (7), and the sludge reflux pump (16) and the sludge discharge pump (18) are respectively communicated with the perforated sludge discharge hoppers at the lower ends of the first-stage sedimentation tank (4) and the second-stage sedimentation tank (7).
9. The rural domestic sewage treatment integrated device according to claim 1, wherein a plurality of vertical water inlet cylinders are arranged in the first-stage sedimentation tank (4), and a plurality of inclined plates (17) are arranged in the second-stage sedimentation tank (7).
10. The rural domestic sewage treatment integrated device according to claim 1, wherein a sludge pump room (6) is arranged below the flocculation tank (5), and the sludge return pump (16) and the sludge discharge pump (18) are both positioned in the sludge pump room.
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| CN202011567380.9A CN112794562A (en) | 2020-12-25 | 2020-12-25 | Rural domestic sewage treatment integrated device |
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| CN202011567380.9A CN112794562A (en) | 2020-12-25 | 2020-12-25 | Rural domestic sewage treatment integrated device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381184A (en) * | 2008-06-06 | 2009-03-11 | 北京桑德环保集团有限公司 | Sewage disposal system with biological phosphorus removal and chemical phosphorus removal bypass and disposal method |
| CN206173173U (en) * | 2016-09-14 | 2017-05-17 | 广东粤海水务股份有限公司 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
| CN109879532A (en) * | 2019-03-05 | 2019-06-14 | 王超 | A kind of double mud and sewage processing systems and method |
| CN208995206U (en) * | 2018-08-16 | 2019-06-18 | 中国市政工程中南设计研究总院有限公司 | A based on branch chemical dephosphorization2/ O high-efficient denitrification and dephosphorization sewage disposal system |
| CN109912135A (en) * | 2018-08-23 | 2019-06-21 | 广东正诚环境科技有限公司 | A rural sewage integrated device |
| CN209052533U (en) * | 2018-08-23 | 2019-07-02 | 广东正诚环境科技有限公司 | A kind of device for removing phosphorous by electrolysis for rural sewage treatment integration apparatus |
| KR101961107B1 (en) * | 2018-06-12 | 2019-07-17 | 주식회사 케이엔씨 | Method for removing nitrogen and phosporus using high-frequency reactor |
| CN111499091A (en) * | 2020-03-31 | 2020-08-07 | 安徽国祯环保节能科技股份有限公司 | Rural sewage treatment system and treatment method thereof |
-
2020
- 2020-12-25 CN CN202011567380.9A patent/CN112794562A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381184A (en) * | 2008-06-06 | 2009-03-11 | 北京桑德环保集团有限公司 | Sewage disposal system with biological phosphorus removal and chemical phosphorus removal bypass and disposal method |
| CN206173173U (en) * | 2016-09-14 | 2017-05-17 | 广东粤海水务股份有限公司 | Rural sewage dephosphorization denitrogenation sewage treatment plant that no mud discharged |
| KR101961107B1 (en) * | 2018-06-12 | 2019-07-17 | 주식회사 케이엔씨 | Method for removing nitrogen and phosporus using high-frequency reactor |
| CN208995206U (en) * | 2018-08-16 | 2019-06-18 | 中国市政工程中南设计研究总院有限公司 | A based on branch chemical dephosphorization2/ O high-efficient denitrification and dephosphorization sewage disposal system |
| CN109912135A (en) * | 2018-08-23 | 2019-06-21 | 广东正诚环境科技有限公司 | A rural sewage integrated device |
| CN209052533U (en) * | 2018-08-23 | 2019-07-02 | 广东正诚环境科技有限公司 | A kind of device for removing phosphorous by electrolysis for rural sewage treatment integration apparatus |
| CN109879532A (en) * | 2019-03-05 | 2019-06-14 | 王超 | A kind of double mud and sewage processing systems and method |
| CN111499091A (en) * | 2020-03-31 | 2020-08-07 | 安徽国祯环保节能科技股份有限公司 | Rural sewage treatment system and treatment method thereof |
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Application publication date: 20210514 |