CN114368825A - Sewage treatment device - Google Patents
Sewage treatment device Download PDFInfo
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- CN114368825A CN114368825A CN202210062054.5A CN202210062054A CN114368825A CN 114368825 A CN114368825 A CN 114368825A CN 202210062054 A CN202210062054 A CN 202210062054A CN 114368825 A CN114368825 A CN 114368825A
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- tank
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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
- C02F3/02—Aerobic 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
- C02F3/28—Anaerobic digestion 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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a sewage treatment device, which belongs to the technical field of sewage treatment and comprises: the system comprises a facultative tank, a first aerobic tank, a second aerobic tank, a first polar plate, a second polar plate, a third polar plate, a power supply, a sedimentation tank and a clean water tank; the facultative tank, the first aerobic tank, the second aerobic tank, the sedimentation tank and the clean water tank are sequentially communicated, a first polar plate is arranged in the facultative tank, a second polar plate is arranged in the first aerobic tank, a third polar plate is arranged in the second aerobic tank, the walls of the facultative tank, the first aerobic tank and the second aerobic tank are made of conductive materials, the positive pole of a power supply is respectively communicated with the first polar plate, the second polar plate and the third polar plate, and the negative pole of the power supply is respectively communicated with the walls of the facultative tank, the first aerobic tank and the second aerobic tank.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment device.
Background
With the rapid development of social economy, the water resource is more and more important in people's lives, and countries and all parts also pay more and more attention to the treatment of water pollution, especially the treatment of distributed sewage is proposed in a schedule, one of which is the construction of new rural areas and the improvement of rural human living environment, and the relevant standards of rural sewage treatment of successive departure of all parts can be seen.
At present, centralized treatment and treatment can be adopted for large and medium-sized enterprises, urbanized domestic sewage, large-sized landscape water bodies, black and odorous rivers and the like, but treatment of rural fecal sewage which is relatively dispersed seems to be a little bit old, and aiming at treatment of dispersed sewage like rural fecal sewage, the problems mainly exist at present: the concentration of pollutants is high: fecal sewage mainly includes the excrement and washes the water, this type of sewage organic matter concentration is high, the ammonia nitrogen content is high, the processing degree of difficulty is great, and corrode sewage treatment plant easily, reduction in installation life, sewage treatment plant adaptability is poor, the difference of north and south ambient temperature, when the temperature is lower, the microbial activity is lower, it is unstable to go out water, it is very high to sewage treatment plant's technical performance requirement, therefore, how to provide one kind can improve the microbial activity and can reduce the sewage treatment plant that the device corrodes is the problem that the skilled person in the art needs to solve urgently.
Disclosure of Invention
In view of the above, the present invention provides a sewage treatment apparatus, which can reduce corrosion of sewage to the treatment apparatus, prolong the service life of the apparatus, improve microbial activity, reduce the influence on microbial activity at a lower temperature, and improve sewage treatment efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wastewater treatment plant comprising: the system comprises a facultative tank, a first aerobic tank, a second aerobic tank, a first polar plate, a second polar plate, a third polar plate, a power supply, a sedimentation tank and a clean water tank;
the facultative tank the first good oxygen pond the second good oxygen pond the sedimentation tank and the clean water basin communicates in proper order, be provided with first polar plate in the facultative tank be provided with the second polar plate in the first good oxygen pond, be provided with the third polar plate in the second good oxygen pond, the facultative tank the first good oxygen pond and the pool wall in the second good oxygen pond all adopts conducting material, the power anodal respectively with first polar plate the second polar plate and the third polar plate intercommunication, the power negative pole respectively with the facultative tank first good oxygen pond and the pool wall intercommunication in the second good oxygen pond.
Preferably, be provided with the partition wall in the facultative tank, the facultative tank passes through the partition wall divide into first facultative tank and second facultative tank, first facultative tank with be provided with respectively in the second facultative tank first polar plate, first facultative tank lateral wall is provided with the inlet opening, the partition wall is provided with and is used for the intercommunication first facultative tank with the first apopore of second facultative tank, second facultative tank lateral wall is provided with first overflow hole.
Preferably, first good oxygen pond lateral wall is provided with the second apopore, the good oxygen pond lateral wall of second is provided with the second overflow hole, the sedimentation tank lateral wall is provided with the third overflow hole, first good oxygen pond passes through first overflow hole with the facultative pond of second intercommunication, first good oxygen pond passes through the second apopore with good oxygen pond of second intercommunication, good oxygen pond of second passes through the second overflow hole with the sedimentation tank intercommunication, the sedimentation tank passes through the third overflow pond with the clean water basin intercommunication.
Preferably, the water inlet hole and the first overflow hole are higher than the first water outlet hole, and the first overflow hole and the second overflow hole are higher than the second water outlet hole.
Preferably, the first polar plate and the second polar plate are both inert electrodes, and the third polar plate is an active electrode.
Preferably, the facultative tank is provided with a stirrer; the first aerobic tank and the second aerobic tank are provided with aerators.
Preferably, the stirrer is a large-hole aerator or a submersible water impeller; the aerator is a microporous aerator or a nano aerator.
Preferably, the first polar plate has a gap with the wall of the facultative tank, the second polar plate has a gap with the wall of the first aerobic tank, and the third polar plate has a gap with the wall of the second aerobic tank.
Preferably, the power supply is a constant-current power supply generator, the voltage of the constant-current power supply generator is controlled to be 1-12V, and the current is controlled to be 10-30 mA.
The invention has the beneficial effects that: the adopted weak electric field is low in voltage and low in current, so that the power consumption is low, and the electric field is more economical and safe; meanwhile, the cathode of the device is protected by an electrochemical method under the condition of impressed current by adopting the principle of 'cathodic protection', so that the corrosion of the main device can be reduced, the service life of the device is prolonged, the life activity and metabolism of microorganisms are further enhanced under the action of a weak electric field, the cell division rate of the microorganisms and the decomposition rate of pollutants are enhanced, the degradation capability of the pollutants and the stability of a biochemical system are improved, and the sewage treatment efficiency is improved.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a plan view of an apparatus according to example 1 of the present invention;
FIG. 2 is a schematic view of the overall structure of embodiment 1 of the present invention;
fig. 3 is a schematic view of the overall structure of embodiment 2 of the present invention.
Wherein, in the figure:
1. a first facultative tank; 2. a first electrode plate; 3. a second facultative tank; 4. a drain hole; 5. a first aerobic tank; 6. a second polar plate; 7. a second aerobic tank; 8. a third polar plate; 9. a sedimentation tank; 10. a clean water tank; 11. a water inlet hole; 12. a first water outlet; 13. a first overflow aperture; 14. a second water outlet; 15. a second overflow aperture; 16. a third overflow aperture; 17. an anaerobic tank; 18. an aerobic tank.
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.
Example 1
Referring to fig. 1-2, the present invention provides a sewage treatment apparatus comprising: the device comprises a facultative tank, a first aerobic tank 5, a second aerobic tank 7, a first polar plate 2, a second polar plate 6, a third polar plate 8, a power supply, a sedimentation tank 9 and a clean water tank 10; the facultative tank is divided into a first facultative tank 1 and a second facultative tank 3 by partition walls, the first facultative tank 1, the second facultative tank 3, a first aerobic tank 5, a second aerobic tank 7, a sedimentation tank 9 and a clean water tank 10 are sequentially communicated, a first polar plate 2 is respectively arranged in the first facultative tank 1 and the second facultative tank 3, a second polar plate 6 is arranged in the first aerobic tank 5, a third polar plate 8 is arranged in the second aerobic tank 7, the tank walls of the first facultative tank 1, the second facultative tank 3, the first aerobic tank 5 and the second aerobic tank 7 are all made of conductive materials, the partition walls of the first facultative tank 1 and the second facultative tank 3 are also made of conductive materials, the positive pole of a power supply is respectively communicated with the first polar plate 2, the second polar plate 6 and the third polar plate 8, and the negative pole of the power supply is respectively communicated with the walls of the first facultative tank 1, the second aerobic tank 3, the first aerobic tank 5 and the second aerobic tank 7; the first facultative tank 1, the second facultative tank 3, the first aerobic tank 5 and the second aerobic tank 7 can adopt an activated sludge method or a biofilm method, and organic sewage is treated by microorganisms.
A sewage inlet hole 11 is formed in the side wall of the first facultative tank 1, a partition wall is provided with a first water outlet hole 12 used for communicating the first facultative tank 1 with the second facultative tank 3, a first overflow hole 13 used for communicating the first aerobic tank 5 is formed in the side wall of the second facultative tank 3, a second water outlet hole 14 used for communicating the second aerobic tank 7 is formed in the side wall of the first aerobic tank 5, a second overflow hole 15 used for communicating the sedimentation tank 9 is formed in the side wall of the second aerobic tank 7, a third overflow hole 16 used for communicating the clear water tank 10 is formed in the side wall of the sedimentation tank 9, a water outlet hole 4 used for discharging clear water is formed in the side wall of the clear water tank 10, the water inlet hole 11 and the first overflow hole 13 are both higher than the first water outlet hole 12, and the first overflow hole 13 and the second overflow hole 15 are both higher than the second water outlet hole 14; adopt the partition wall to separate the facultative tank into first facultative tank 1 and second facultative tank 3 and handle dispersed sewage, can prolong sewage moving path for sewage reaction is more abundant, reduces the possibility of short stream, and the partition wall sets up more, and sewage path is longer, and sewage reaction is more abundant, and the short stream is probably less, considers economic nature factor, is provided with a partition wall in this example.
The conductive material is preferably steel, such as carbon steel or stainless steel, the tank walls and the partition wall joints of the first facultative tank 1, the second facultative tank 3, the first aerobic tank 5 and the second aerobic tank 7 are welded, and at least 3 layers of antirust paint coatings are kept at the welding seams;
the first polar plate 2 and the second polar plate 6 both adopt inert polar plates, such as graphite electrodes, titanium electrodes or electrodes coated with ruthenium iridium and the like; the third polar plate 8 adopts an active polar plate, such as an iron electrode or an aluminum electrode, the first polar plate 2, the second polar plate 6 and the third polar plate 8 are respectively suspended and fixed at the middle positions of the first facultative tank 1, the second facultative tank 3, the first aerobic tank 5 and the second aerobic tank 7, and gaps are respectively arranged between the polar plates and the tank wall and the partition wall, so that the polar plates cannot be directly contacted to prevent the power supply from short circuit; the inert polar plate can be used all the time without being replaced, the iron polar plate or the aluminum polar plate only needs to be replaced regularly, if the using time is longer, a thicker polar plate can be selected for use, the polar plate is convenient to replace, after the inert polar plate is directly suspended and fixed, the power supply is switched on, and the economical efficiency is higher;
the first facultative tank 1 and the second facultative tank 3 are both provided with a large-hole aerator or a submersible water impeller for stirring; the first aerobic tank 5 and the second aerobic tank 7 are both provided with a microporous aerator or a nano aerator for providing sufficient oxygen;
the power supply is a constant-current power supply generator, the voltage of the constant-current power supply generator needs to be controlled to be 1-12V, and the current needs to be controlled to be 10-30 mA; the adopted weak electric field is low in voltage and current, so that the power consumption is low, and a solar power supply can be adopted to provide required power supply, so that the solar energy electric field is more economic and safe; meanwhile, the cathode of the device is protected by an electrochemical method under the condition of impressed current by adopting the principle of 'cathodic protection', so that the corrosion of the main device can be reduced, and the service life of the device can be prolonged;
sewage gets into first facultative tank 1 from inlet opening 11, passes first apopore 12 again, flows in second facultative tank 3 naturally, and the anaerobism in first facultative tank 1 and the second facultative tank 3 is degraded with pollutants such as CODcr, organic nitrogen, inorganic nitrogen, total phosphorus under the effect of facultative microorganism in the aquatic, and this moment under the effect of plus weak electric field: the cell wall as cathode mainly undergoes the following electrochemical reactions:
cathode: 2H++2e→2[H]→H2↑；
The first plate 2, which is the anode, reacts as follows:
anode: 2OH- → 2[ O ]]+2e→O2↑+2e
The active oxygen generated at the anode and the active hydrogen generated at the cathode can oxidize organic matters in the water body to further degrade the organic matters in the water body, and meanwhile, under the action of a weak electric field, the life activity and metabolism of microorganisms are further enhanced, the cell division of the microorganisms and the decomposition rate of pollutants are enhanced, the degradation capability of the pollutants and the stability of a biochemical system are improved, the sewage treatment efficiency is improved, and the troubles caused by low activity of the microorganisms and unstable water outlet at lower temperature in winter are overcome;
sewage enters the first aerobic tank 5 from the first overflow hole 13, pollutants such as CODcr, organic nitrogen, inorganic nitrogen, total phosphorus and the like in the water are degraded under the action of aerobic microorganisms, at the moment, electrochemical reactions generated by the anode and the cathode in the first aerobic tank 5 are the same as those generated by the second facultative tank 3, active oxygen generated by the anode and organic matters in the active hydrogen oxidation water body generated by the cathode further degrade the organic matters in the water body, at the moment, the weak electric field promotes the cell arrangement of the aerobic microorganisms and the decomposition rate of the pollutants, and the degradation capability of the pollutants in the aerobic tank and the stability of a biochemical system are improved;
sewage enters the second aerobic tank 7 from the second water outlet hole 14, and because the anode of the second aerobic tank 7 adopts an iron polar plate or an aluminum polar plate, the anode simultaneously generates the electrochemical reaction and action generated by the first aerobic tank 5:
when adopting the iron polar plate: fe-2e ═ Fe2+
Fe2+-e＝Fe3+
When the aluminum polar plate is adopted: al-3e ═ Al3+
If a conventional phosphorus removal agent feeding facility is adopted, not only is the power consumption increased, but also a medicine feeding device needs to be maintained, and a phosphorus removal agent is configured periodically; fe without formation of electrons2+、Fe3+、Al3+With respect to sewage
Precipitates are formed, the phosphorus removal function of phosphorus accumulating bacteria is compensated, the standard discharge of total phosphorus after sewage is treated is ensured, and the complex work that a phosphorus removal medicine adding device is added at the rear end of a conventional sewage treatment plant and a phosphorus removal agent is continuously added is fundamentally replaced; the manual work is greatly reduced, and even unattended operation can be realized; the inert polar plate and the active polar plate are effectively utilized to be matched at the anode, so that the splitting strengthening of the weak electric field to microbial cells and the degradation rate improvement to pollutants can be exerted to the maximum extent in the operation process.
After the sludge-water separation with the treated sewage in the sedimentation tank 9, the sludge formed at the bottom of the sedimentation tank 9 is discharged, and the supernatant enters the clean water tank 10 through the third overflow hole 16 and is discharged or recycled after the disinfection treatment.
Example 2
Referring to fig. 3, in this embodiment, the facultative tank 17, the aerobic tank 18, and the sedimentation tank 9 are all cylindrical, and the first polar plate 2 in the facultative tank 17 and the third polar plate 8 in the aerobic tank 18 are also cylindrical, so as to form a "coaxial biochemical reaction system" based on a weak electric field, in this mode, the number of the facultative tank 17 and the aerobic tank 18 can be increased or decreased according to the water amount change in the later stage, thereby reducing the difficulty of the later-stage modification due to the water amount change, and saving the modification investment.
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 the 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 (9)
1. A sewage treatment apparatus, comprising: the system comprises a facultative tank, a first aerobic tank, a second aerobic tank, a first polar plate, a second polar plate, a third polar plate, a power supply, a sedimentation tank and a clean water tank;
the facultative tank the first good oxygen pond the second good oxygen pond the sedimentation tank and the clean water basin communicates in proper order, be provided with first polar plate in the facultative tank be provided with the second polar plate in the first good oxygen pond, be provided with the third polar plate in the second good oxygen pond, the facultative tank the first good oxygen pond and the pool wall in the second good oxygen pond all adopts conducting material, the power anodal respectively with first polar plate the second polar plate and the third polar plate intercommunication, the power negative pole respectively with the facultative tank first good oxygen pond and the pool wall intercommunication in the second good oxygen pond.
2. The sewage treatment apparatus according to claim 1, wherein a partition wall is provided in the facultative tank, the facultative tank is divided into a first facultative tank and a second facultative tank by the partition wall, the first polar plate is provided in each of the first facultative tank and the second facultative tank, the first facultative tank side wall is provided with a water inlet hole, the partition wall is provided with a first water outlet hole for communicating the first facultative tank with the second facultative tank, and the second facultative tank side wall is provided with a first overflow hole.
3. The sewage treatment device of claim 2, wherein the first aerobic tank is provided with a second outlet hole on a side wall thereof, the second aerobic tank is provided with a second overflow hole on a side wall thereof, the sedimentation tank is provided with a third overflow hole on a side wall thereof, the first aerobic tank is communicated with the second facultative tank through the first overflow hole, the first aerobic tank is communicated with the second aerobic tank through the second outlet hole, the second aerobic tank is communicated with the sedimentation tank through the second overflow hole, and the sedimentation tank is communicated with the clean water tank through the third overflow tank.
4. The wastewater treatment apparatus according to claim 3, wherein the inlet hole and the first overflow hole are higher than the first outlet hole, and the first overflow hole and the second overflow hole are higher than the second outlet hole.
5. The wastewater treatment apparatus according to claim 1, wherein the first electrode plate and the second electrode plate are both inert electrodes, and the third electrode plate is an active electrode.
6. The wastewater treatment apparatus according to claim 1, wherein the facultative tank is provided with a stirrer; the first aerobic tank and the second aerobic tank are provided with aerators.
7. The wastewater treatment device of claim 6, wherein the agitator is a large-hole aerator or a submersible water impeller; the aerator is a microporous aerator or a nano aerator.
8. The wastewater treatment plant of claim 1, wherein the first plate is spaced from the wall of the facultative tank, the second plate is spaced from the wall of the first aerobic tank, and the third plate is spaced from the wall of the second aerobic tank.
9. The sewage treatment device according to claim 1, wherein the power supply is a constant-current power supply generator, the voltage of the constant-current power supply generator is controlled to be 1-12V, and the current is controlled to be 10-30 mA.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062054.5A CN114368825A (en) | 2022-01-19 | 2022-01-19 | Sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062054.5A CN114368825A (en) | 2022-01-19 | 2022-01-19 | Sewage treatment device |
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| CN202210062054.5A Pending CN114368825A (en) | 2022-01-19 | 2022-01-19 | Sewage treatment device |
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| CN208182793U (en) * | 2018-03-07 | 2018-12-04 | 武汉东川自来水科技开发有限公司 | A kind of horizontal three phase fluidized bed of electric pole type |
| CN211734106U (en) * | 2019-12-26 | 2020-10-23 | 深圳市易水水处理技术有限公司 | Sewage treatment device and sewage treatment system |
| CN112979092A (en) * | 2021-03-22 | 2021-06-18 | 南京大学 | Three-dimensional electrode biological enhanced treatment system and method for removing dissolved organic matters and reducing toxicity of industrial wastewater |
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2022
- 2022-01-19 CN CN202210062054.5A patent/CN114368825A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519234A (en) * | 2009-04-16 | 2009-09-02 | 湖南融城环保技术有限公司 | Sewage dephosphorization method |
| CN202133113U (en) * | 2011-04-29 | 2012-02-01 | 重庆欧凯电器有限公司 | Adjustable cathode protection type water heater |
| CN103319045A (en) * | 2013-06-09 | 2013-09-25 | 宁波市恒洁水处理工程有限公司 | Cephalo-type waste water processing apparatus and method thereof |
| CN104909514A (en) * | 2015-03-09 | 2015-09-16 | 浙江大学 | Integrated system for solar-driven microbial electrolysis cell strengthening treatment on rural domestic sewage |
| CN107892380A (en) * | 2017-10-18 | 2018-04-10 | 浙江工商大学 | A kind of device and method for eliminating nitrate in groundwater |
| CN108358387A (en) * | 2018-03-07 | 2018-08-03 | 武汉东川自来水科技开发有限公司 | A kind of electroplating waste water treatment system and method |
| CN208182793U (en) * | 2018-03-07 | 2018-12-04 | 武汉东川自来水科技开发有限公司 | A kind of horizontal three phase fluidized bed of electric pole type |
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| CN112979092A (en) * | 2021-03-22 | 2021-06-18 | 南京大学 | Three-dimensional electrode biological enhanced treatment system and method for removing dissolved organic matters and reducing toxicity of industrial wastewater |
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