CN116282682A - Sewage disinfection treatment system capable of realizing energy recycling - Google Patents
Sewage disinfection treatment system capable of realizing energy recycling Download PDFInfo
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- CN116282682A CN116282682A CN202310182379.1A CN202310182379A CN116282682A CN 116282682 A CN116282682 A CN 116282682A CN 202310182379 A CN202310182379 A CN 202310182379A CN 116282682 A CN116282682 A CN 116282682A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 64
- 239000010865 sewage Substances 0.000 title claims abstract description 47
- 238000004064 recycling Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000010248 power generation Methods 0.000 claims abstract description 65
- 238000006243 chemical reaction Methods 0.000 claims abstract description 46
- 230000008929 regeneration Effects 0.000 claims abstract description 12
- 238000011069 regeneration method Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 230000001112 coagulating effect Effects 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000002351 wastewater Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 9
- 239000007844 bleaching agent Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 abstract description 6
- 239000006227 byproduct Substances 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 239000002028 Biomass Substances 0.000 abstract description 3
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000029087 digestion Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005541 medical transmission Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Classifications
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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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
-
- 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
-
- 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
-
- 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
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2893—Particular arrangements for anaerobic reactors with biogas recycling
-
- 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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- 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)
- Physical Water Treatments (AREA)
Abstract
A sewage disinfection treatment system capable of realizing energy recycling comprises a sewage treatment unit and a regeneration unit; the sewage treatment unit comprises a filtering device, a sand setting tank, an anaerobic reaction tank, an anoxic reaction tank, an aerobic reaction tank, a biological mud-water separation tank, a coagulating sedimentation tank and an electrochemical disinfection tank; the regeneration power generation unit comprises a first water turbine set power generation device, a biogas power generation device, a wave energy power generation device and a circuit distribution system; the output of the circuit distribution system is connected with a cathode pool and an anode pool in the electrochemical disinfection pool, and an ultraviolet lamp tube is arranged in the cathode pool. The invention can save about 60% of commercial power consumption by utilizing the sewage kinetic energy, biomass energy, wave energy and the like in the sewage treatment process to convert and utilize energy. In addition, through the organic combination of the electro-Fendon reaction and ultraviolet sterilization, the addition of bleaching powder can be avoided, and the generation of disinfection byproducts can be reduced. The invention is beneficial to energy conservation and emission reduction, is beneficial to pollution reduction and environmental protection.
Description
Technical Field
The invention relates to the technical field of water pollution control, in particular to a sewage disinfection treatment system capable of realizing energy recycling.
Background
Urban sewage contains a large amount of pathogenic microorganisms including bacteria, viruses, parasites, protozoa and the like, seriously jeopardizes public health safety and aggravates disease transmission. At present, the traditional disinfection process in the sewage treatment plant mainly uses ultraviolet disinfection and bleach powder addition as auxiliary materials.
However, in practical application, light is easy to refract and reflect in water, and the effect of ultraviolet disinfection is closely related to sewage quality, such as transparency, turbidity and the like. According to practical experience, the disinfection effect in the water layer with the diameter of 10 cm around the ultraviolet lamp tube is better, and the disinfection effect in the water layer outside the range is reduced along with the increase of the distance between the ultraviolet lamp tube and the lamp tube, so that the stable disinfection effect cannot be realized. Therefore, the halogen-containing bleaching powder is often added to strengthen the disinfection effect.
However, in use, bleaching powder is prone to react with natural organics in sewage to produce disinfection byproducts such as trihalomethanes, haloacetic acids, etc. which have a "tri-induced" effect, which is detrimental to the health and safety of the human body. Meanwhile, the bleaching powder has strong irritation and is easy to deteriorate in storage and transportation.
Due to the need of 'double carbon targets' practiced in China, the sewage plant also needs to realize the tasks of carbon reduction and energy saving. As described above, the conventional sewage disinfection process is a process with high energy consumption.
Therefore, how to solve the above-mentioned drawbacks of the prior art is a subject to be studied and solved by the present invention.
Disclosure of Invention
The invention aims to provide a sewage disinfection treatment system capable of realizing energy recycling.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a sewage disinfection treatment system capable of realizing energy recycling comprises a sewage treatment unit and a regeneration unit;
the sewage treatment unit comprises a filtering device, a sand setting tank, an anaerobic reaction tank, an anoxic reaction tank, an aerobic reaction tank, a biological mud-water separation tank, a coagulating sedimentation tank and an electrochemical disinfection tank which are sequentially connected in a pipeline manner according to the sewage treatment sequence;
the regeneration power generation unit comprises a first water turbine set power generation device, a biogas power generation device, a wave energy power generation device and a circuit distribution system electrically connected with the output of each power generation device; the first turbine generator set generating device is at least arranged in a waterway between the coagulating sedimentation tank and the electrochemical disinfection tank;
the biological mud-water separation tank is connected with the anaerobic reaction tank through a first mud discharge pipeline, and the exhaust gas of the anaerobic reaction tank enters the biogas generating device;
the wave energy power generation device is positioned in the aerobic reaction tank;
the wind power generation device or/and the solar power generation device are connected with the circuit distribution system by the output of the wind power generation device or/and the solar power generation device;
the output of the circuit distribution system is electrically connected with a cathode pool and an anode pool in an electrochemical disinfection pool in the sewage treatment unit, and the ultraviolet lamp tube is arranged in the cathode pool.
According to a further technical scheme, the sewage treatment unit further comprises a clean water tank, and the clean water tank is connected with effluent of the electrochemical disinfection tank.
The further technical scheme comprises a reservoir, a water pump and a second water turbine unit power generation device; the water storage tank is positioned above the clean water tank, and the water pump pumps part of clean water in the clean water tank into the water storage tank; the effluent of the reservoir flows back to the clean water tank through the second water turbine unit power generation device;
and the power output of the second water turbine generator set generating device is connected with the circuit distribution system.
According to a further technical scheme, the biological mud-water separation tank is connected with the anaerobic reaction tank through a second mud discharge pipeline.
According to a further technical scheme, the aerobic reaction tank is communicated with the anoxic reaction tank through a return pipe.
According to a further technical scheme, the circuit distribution system is further connected with a circuit of the urban power grid and used for accessing the mains supply.
According to a further technical scheme, the circuit distribution system comprises a control device, a converter, a transformer, a relay protection device and a rectifier;
the output of the biogas power generation device is connected with the control device, the output of the control device is connected with the relay protection device, and the output of the relay protection device is connected with the rectifier;
the output of the wave energy power generation device, the solar power generation device and the wind power generation device is connected with the converter, and the output of the converter is connected with the control device;
the output of the first water turbine generator set and the output of the second water turbine generator set are connected with the transformer, and the output of the transformer is connected with the relay protection device;
the output of the urban power grid is connected with the rectifier, and the output of the rectifier is connected with the cathode and the anode of the electrochemical disinfection tank and is used for supplying power to the cathode tank, the anode tank and the ultraviolet lamp tube in the cathode tank of the electrochemical disinfection tank.
The working principle and the advantages of the invention are as follows:
1. the invention can avoid the addition of bleaching powder and reduce the generation of disinfection byproducts by organically combining the electric-Fendon reaction and the ultraviolet sterilization. Can improve the sewage disinfection effect and make up for the defect of unstable ultraviolet disinfection effect. Solves the problem that the chloride can generate disinfection byproducts in the traditional disinfection process, and can also avoid dangerous conditions such as explosion or leakage and the like possibly caused by the transportation and use of liquid chlorine and hypochlorite.
2. The invention can utilize the kinetic energy of the sewage to convert into electric energy to drive the whole system to operate, can maximally utilize resources, realizes the purpose of energy conservation and reduces the disinfection cost.
In summary, the invention provides a sewage disinfection treatment system capable of realizing energy recycling aiming at the defects of the traditional ultraviolet disinfection technology and chlorine-containing medicament adding technology in the prior sewage plant in practical application, so as to be suitable for the efficient oxidation treatment of various organic wastewater in the sewage plant. Effectively solves the practical problems of unstable disinfection effect and easy generation of disinfection byproducts existing in the prior UV disinfection of urban sewage plants.
The invention provides a sewage disinfection treatment system capable of realizing energy recycling. In order to further promote the target process of carbon peak and carbon neutralization, the energy conversion and utilization are carried out by utilizing the special sewage kinetic energy, solar energy, biomass energy, wind energy, wave energy and the like of the sewage treatment plant, so that the utilization rate of the energy is improved, the energy is converted into directly available electric energy, the running stability of equipment is ensured, and the development concept of energy conservation and emission reduction is implemented. Compared with the prior art, the invention can reduce 60% of commercial power consumption.
Drawings
FIG. 1 is a schematic block diagram of an overall system of an embodiment of the present invention;
fig. 2 is a schematic block diagram of a regenerative power generation unit in an embodiment of the present invention.
In the above figures: 1. a coarse grid; 2. a fine grid; 3. a sand setting tank; 4. an anaerobic reaction tank; 5. an anoxic reaction tank; 6. an aerobic reaction tank; 7. a biological mud-water separation tank; 8. a coagulating sedimentation tank; 9. an electrochemical disinfection tank; 9a, a cathode pool; 9b, an anode pool; 9c, a diaphragm; 10. a first turbine unit power generation device; 11. a biogas power generation device; 12. a wave energy power generation device; 13. a circuit distribution system; 14. a clean water tank; 15. a reservoir; 16. a water pump; 17. a second turbine unit power generation device; 18. a first sludge discharge pipeline; 19. a second sludge discharge pipeline; 20. a return pipe; 21. an urban power grid; 22. a wind power generation device; 23. a solar power generation device; 24. a control device; 25. a current transformer; 26. a transformer; 27. a relay protection device; 28. a rectifier.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings and examples:
examples: the present invention will be described in detail with reference to the drawings, wherein modifications and variations are possible in light of the teachings of the present invention, without departing from the spirit and scope of the present invention, as will be apparent to those of skill in the art upon understanding the embodiments of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Singular forms such as "a," "an," "the," and "the" are intended to include the plural forms as well, as used herein.
The terms "first," "second," and the like, as used herein, do not denote a particular order or sequence, nor are they intended to be limiting, but rather are merely used to distinguish one element or operation from another in the same technical term.
As used herein, "connected" or "positioned" may refer to two or more components or devices in physical contact with each other, or indirectly, or in operation or action with each other.
As used herein, the terms "comprising," "including," "having," and the like are intended to be open-ended terms, meaning including, but not limited to.
The term (terms) as used herein generally has the ordinary meaning of each term as used in this field, in this disclosure, and in the special context, unless otherwise noted. Certain terms used to describe the present disclosure are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in connection with the description herein.
Referring to fig. 1 and 2, a sewage disinfection treatment system capable of realizing energy recycling comprises a sewage treatment unit and a regeneration unit.
The sewage treatment unit comprises a filtering device, a sand setting tank 3, an anaerobic reaction tank 4, an anoxic reaction tank 5, an aerobic reaction tank 6, a biological mud-water separation tank 7, a coagulating sedimentation tank 8 and an electrochemical disinfection tank 9 which are sequentially connected in a water path according to the sewage treatment sequence.
The filter device may in particular comprise a coarse grid 1 and a fine grid 2. After urban sewage enters the system, large-size floaters such as branches, foam, garbage bags and the like are filtered through the coarse grille 1, and then flow to the fine grille 2 through the action of a lifting pump room to further filter out small-size floaters.
The regeneration generating unit comprises a first water turbine set generating device 10, a biogas generating device 11, a wave energy generating device 12 and a circuit distribution system 13 electrically connected with the output of each generating device, wherein the output of the circuit distribution system 13 is electrically connected with a cathode pool 9a and an anode pool 9b in an electrochemical disinfection pool 9 in the sewage treatment unit, and the cathode pool 9a and the anode pool 9b are separated by a diaphragm 9c. The first turbine generator system 10 is at least arranged in the waterway between the coagulating sedimentation tank 8 and the electrochemical disinfection tank 9, and can also be arranged in the waterway between other structures.
Preferably, the sewage treatment unit further comprises a clean water tank 14, and the clean water tank 14 is connected with the effluent of the electrochemical disinfection tank 9. The cathode pool 9a is connected with the effluent of the coagulating sedimentation tank 8, and the ultraviolet lamp tube and the aeration tube (not drawn in the figure) are arranged in the cathode pool 9 a; the outlet water of the cathode pool 9a is connected with the inlet water of the clean water pool 14, part of the outlet water of the clean water pool 14 flows back to the anode pool 9b through a pipeline, and the outlet water of the anode pool 9b is connected with the inlet water of the clean water pool 14.
Preferably, the water pump device also comprises a water reservoir 15, a water pump 16 and a second water turbine set generating device 17; the reservoir 15 is positioned above the clean water tank 14, and the water pump 16 pumps part of the clean water in the clean water tank 14 into the reservoir 15; the effluent of the reservoir 15 flows back to the clean water tank 14 through the second turbine generator set 17; the power output of the second turbine generator set 17 is connected to the circuit distribution system 13. By the design, when the regeneration has redundancy, the energy can be stored through the water storage tank 15, so that the energy storage device can be used as a standby power supply on one hand, and on the other hand, the relatively unstable regeneration can be stored in a relatively stable energy storage power generation mode and can be flexibly called according to the use requirement.
Preferably, the biological mud-water separation tank 7 is connected with an anaerobic digestion tank 29 through a first mud discharge pipeline 18, and the exhaust gas of the anaerobic digestion tank 29 enters the biogas generating device 11. And then the biogas generated by the anaerobic reaction tank 4 is used for generating electricity. Specifically, the biogas power generation device 11 is the prior art, and the working principle and the using method thereof are well known to those skilled in the art, so that the description thereof is omitted herein.
Preferably, the wave power generation device 12 is located in the aerobic reaction tank 6, and further energy recovery is performed by using water flow fluctuation generated by aeration of the aerobic reaction tank 6, so as to realize power generation. Specifically, the wave power generation device 6 is a prior art, and its working principle and use method are well known to those skilled in the art, so the description is omitted herein.
Preferably, the biological mud-water separation tank 7 is connected to the anaerobic reaction tank 4 through a second mud discharge pipeline 19, and can be used for returning mud and serving anaerobic digestion.
Preferably, part of the effluent from the aerobic reaction tank 6 is communicated with the anoxic reaction tank 5 through a return pipe 20, and can be used for returning to the anoxic reaction tank 5 for denitrification treatment.
Preferably, as shown in fig. 2, the circuit distribution system of the regeneration unit is further connected to a circuit of the urban power network 21 for accessing the mains.
Preferably, a wind power generation device 22 and/or a solar power generation device 23 can be further included, and the output of the wind power generation device and/or the solar power generation device is connected with the circuit distribution system 13.
Preferably, the circuit distribution system 13 comprises a control device 24, a converter 25, a transformer 26, a relay protection device 27 and a rectifier 28; the output of the biogas power generation device 11 is connected with the control device 24, the output of the control device 24 is connected with the relay protection device 27, and the output of the relay protection device 27 is connected with the rectifier 28; the outputs of the wave power generation device 12, the solar power generation device 23 and the wind power generation device 22 are connected with the current transformer 25, and the output of the current transformer 25 is connected with the control device 24 so as to stabilize the current through the control device 24.
The outputs of the first water turbine generator system 10 and the second water turbine generator system 17 are connected with the transformer 26, and the output of the transformer 26 is connected with the relay protection device 27.
The output of the urban power network 21 is connected with the rectifier 28, and the conversion from alternating current to direct current is realized through the rectifier 28. The output of rectifier 28 is connected to the cathode and anode of the electrochemical cell 9 for performing the electro-Fendon reaction. If the electrochemical disinfection tank 9 is sufficiently powered, the electrochemical disinfection tank can also be used for powering an ultraviolet lamp tube and an aerator pipe in the cathode tank 9a.
The sewage disinfection treatment process capable of realizing energy recycling is described as follows:
firstly, filtering urban sewage to be treated, and sequentially flowing through a sand setting tank 3, an anaerobic reaction tank 4, an anoxic reaction tank 5, an aerobic reaction tank 6, a biological mud-water separation tank 7, a coagulating sedimentation tank 8 and an electrochemical disinfection tank 9 for water quality treatment;
wherein, at least the first water turbine generator set generating device 10 utilizes the potential energy of water flow between the coagulating sedimentation tank 8 and the electrochemical disinfection tank 9 for hydroelectric power generation, the biogas generating device 11 utilizes the exhaust gas of the anaerobic reaction tank 4 for biogas power generation, and the wave energy generating device 12 utilizes the water flow disturbance of the aerobic reaction tank 6 for wave energy power generation;
the regenerated electric energy obtained by the hydroelectric power generation, the biogas power generation and the wave energy power generation is processed and then is input into the electrochemical disinfection tank 9 to be used as power supply for the cathode tank 9a, the anode tank 9b and the ultraviolet lamp tubes in the cathode tank 9a.
Preferably, the regenerated electric energy further comprises wind power generation or/and solar power generation.
Preferably, when the regeneration has redundancy, the energy can be stored through the reservoir 15, and then the power can be generated through the second turbine generator set generating device 17, so that the technical effect of the design is that: on the one hand, the device can be used as a standby power supply, and on the other hand, relatively unstable regenerated power generation can be stored in a relatively stable energy storage power generation mode and flexibly called according to the use requirement.
According to the embodiment, energy conversion and utilization are carried out by utilizing the special sewage kinetic energy, solar energy, biomass energy, wind energy, wave energy and the like of the sewage treatment plant, so that the energy utilization rate is improved, and the energy is converted into directly available electric energy, so that compared with the existing scheme, the utility power consumption can be reduced by about 60%. On the other hand, through the organic combination of the electro-Fendon reaction and ultraviolet sterilization, the addition of bleaching powder can be avoided, and the generation of disinfection byproducts can be reduced. Not only is beneficial to environmental protection, but also is beneficial to energy conservation and emission reduction.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a sewage disinfection processing system that can realize energy recuperation, its characterized in that: comprises a sewage treatment unit and a regeneration unit;
the sewage treatment unit comprises a filtering device, a sand setting tank, an anaerobic reaction tank, an anoxic reaction tank, an aerobic reaction tank, a biological mud-water separation tank, a coagulating sedimentation tank and an electrochemical disinfection tank which are sequentially connected in a pipeline manner according to the sewage treatment sequence;
the regeneration power generation unit comprises a first water turbine set power generation device, a biogas power generation device, a wave energy power generation device and a circuit distribution system electrically connected with the output of each power generation device; the first turbine generator set generating device is at least arranged in a waterway between the coagulating sedimentation tank and the electrochemical disinfection tank;
the biological mud-water separation tank is connected with the anaerobic reaction tank through a first mud discharge pipeline, and the exhaust gas of the anaerobic reaction tank enters the biogas generating device;
the wave energy power generation device is positioned in the aerobic reaction tank;
the wind power generation device or/and the solar power generation device are connected with the circuit distribution system by the output of the wind power generation device or/and the solar power generation device;
the output of the circuit distribution system is electrically connected with a cathode pool and an anode pool in an electrochemical disinfection pool in the sewage treatment unit, and the ultraviolet lamp tube is arranged in the cathode pool.
2. The wastewater disinfection treatment system of claim 1, wherein: the sewage treatment unit further comprises a clean water tank, and the clean water tank is connected with the effluent of the electrochemical disinfection tank.
3. The wastewater disinfection treatment system of claim 2, wherein: the water pump is connected with the water storage tank; the water storage tank is positioned above the clean water tank, and the water pump pumps part of clean water in the clean water tank into the water storage tank; the effluent of the reservoir flows back to the clean water tank through the second water turbine unit power generation device;
and the power output of the second water turbine generator set generating device is connected with the circuit distribution system.
4. The wastewater disinfection treatment system of claim 1, wherein: the biological mud-water separation tank is connected with the anaerobic reaction tank through a second mud discharge pipeline.
5. The wastewater disinfection treatment system of claim 1, wherein: the aerobic reaction tank is communicated with the anoxic reaction tank through a return pipe.
6. The wastewater disinfection treatment system of claim 1, wherein: the circuit distribution system is also connected with a circuit of the urban power grid and is used for accessing the mains supply.
7. The wastewater disinfection treatment system of claim 1, wherein: the circuit distribution system comprises a control device, a converter, a transformer, a relay protection device and a rectifier;
the output of the biogas power generation device is connected with the control device, the output of the control device is connected with the relay protection device, and the output of the relay protection device is connected with the rectifier;
the output of the wave energy power generation device, the solar power generation device and the wind power generation device is connected with the converter, and the output of the converter is connected with the control device;
the output of the first water turbine generator set and the output of the second water turbine generator set are connected with the transformer, and the output of the transformer is connected with the relay protection device;
the output of the urban power grid is connected with the rectifier, and the output of the rectifier is connected with the cathode and the anode of the electrochemical disinfection tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310182379.1A CN116282682A (en) | 2023-03-01 | 2023-03-01 | Sewage disinfection treatment system capable of realizing energy recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310182379.1A CN116282682A (en) | 2023-03-01 | 2023-03-01 | Sewage disinfection treatment system capable of realizing energy recycling |
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| CN116282682A true CN116282682A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310182379.1A Pending CN116282682A (en) | 2023-03-01 | 2023-03-01 | Sewage disinfection treatment system capable of realizing energy recycling |
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| CN (1) | CN116282682A (en) |
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2023
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