CN114618279A - Emission reduction system and construction method for removing odor and greenhouse gas using sulfur autotrophs - Google Patents

Abstract

The emission reduction system using sulfur autotrophic bacteria to remove odor and greenhouse gas includes reaction tank system, deodorization system and condensate water discharge system. The biological reaction tank is connected with water inlet pipe and air inlet pipe; the deodorization box set in the deodorization system The first, second and third bacterial agent pools are installed inside; the bacterial agent pool is equipped with inspection wells for bacterial agent pools and on-line monitoring instruments for sulfur-containing odor; the deodorizing box is also connected to the solar exhaust emission tower, and the A wind turbine is arranged on one side; the condensate water discharge system includes a condensate water discharge pipe that communicates with the deodorizing box, and the condensate water discharge pipe is provided with a condensate water discharge pump and a condensate water discharge pipe inspection well; the present invention is used for purifying The sulfur-containing odorous gas emitted by the underground sewage treatment plant can be fixed by using the solar powerless suction method while saving energy and reducing consumption.

Description

Emission reduction system and construction method for removing odor and greenhouse gas by using sulfur autotrophic bacteria

technical field

The invention relates to the technical field of sewage treatment, in particular to an emission reduction system and a construction method for removing malodor and greenhouse gases by using sulfur autotrophs.

Background technique

Sewage treatment plants are an important part of municipal and environmental protection infrastructure, and play a huge role in protecting the ecological environment, saving water resources, and improving people's quality of life. According to statistics from relevant departments, as of 2020, the total number of sewage treatment plants nationwide has reached 15,700 seats.

While the traditional above-ground sewage treatment plants purify sewage, the main components of the stench are hydrogen sulfide, methyl mercaptan, trimethylamine, methyl sulfide, dimethyl disulfide, carbon disulfide and other sulfur-containing odors. Nose odor is also toxic. If it is not handled properly, it will pose a serious threat to the life safety of surrounding residents and factory workers. The resulting "NIMBY effect" will depreciate the surrounding land and seriously affect the investment value.

At the same time, the activated sludge method is generally adopted as the mainstream technology in urban sewage treatment plants in my country. The microorganisms in activated sludge will release a large amount of carbon dioxide while degrading pollutants such as carbon, nitrogen and phosphorus in sewage. According to the field research and testing, the biological treatment unit can produce 10000-36000ppm of greenhouse gases.

The traditional above-ground biological deodorization system requires an additional odor collection cover on the top of the tank to seal the system; the tail of the system must be equipped with a 15m-high exhaust chimney according to the specifications, which seriously affects the landscape of the plant. Traditional deodorization systems cannot achieve direct reductions in greenhouse gas emissions. In addition, the supporting high-power fans, spray pumps and other auxiliary facilities have an energy consumption range of 12-37kw h/10,000 cubic meters of gas, and usually require 24 hours of operation, consuming a large amount of electricity, which indirectly increases greenhouse gas emissions . In general, the current existing deodorization systems lack systems for removing malodorous gases and reducing greenhouse gases.

The underground sewage treatment plant has the advantages of small footprint, strong odor sealing, environmental friendliness, and good aesthetics in combination with greening and landscape. It has gradually been recognized by local governments and surrounding residents, and has become a new direction for urban water treatment engineering construction. . The underground water treatment structure is to transfer the water treatment facilities from the open air to the underground. It is generally divided into three layers: the ground layer, the first underground layer and the second underground layer. The ground floor is usually a leisure park, with ventilation shafts and entrances and exits, and most areas are separated from the outdoor space; the first underground floor is the equipment lifting and inspection space; the second underground floor is the sewage pool body layer, which is usually closed and separated from the underground one. The layers make up the box.

In the prior art, the invention patent with the publication number of CN111939750A discloses a deodorant bacterial agent, a deodorizing device and a deodorizing method. The active ingredients of the deodorizing bacterial agent include yeast, lactic acid bacteria and acetic acid bacteria derived from food. ;Three-stage treatment is performed on the gas entering it, and the odorous waste gas is decomposed and absorbed in the object by microbial strains, and the purpose of removing the odorous waste gas is achieved while the microorganisms multiply, and the combined deodorization through three treatments ensures high efficiency and thoroughness. However, it does not have the advantage of reducing greenhouse gas emissions while purifying the odor, so that the odorous sulfur-containing gas can form an active, zero-energy natural outflow through thermal pressure.

In the prior art, the invention patent with publication number CN111111425A discloses a multi-reaction section combined odor treatment device and treatment method. The top of the biological sulfur removal reaction section is connected to the bottom of the biological nitrogen removal reaction section; the biological nitrogen removal reaction The top of the section is connected to the bottom of the biological carbon removal reaction section; the upper part of the biological carbon removal reaction section is connected to the bottom of the deep purification section, and the top of the deep purification section is provided with an air outlet; the combination of multiple reaction sections and multiple bacterial species is used to eliminate odorous gas. The treatment is more thorough and the treatment effect is stable; however, its internal flora cannot use CO ₂ as a carbon source, thereby reducing the production of greenhouse gases.

SUMMARY OF THE INVENTION

The purpose of the present invention is to aim at the deficiencies in the prior art, to provide an emission reduction system and a construction method for removing malodor and greenhouse gases by using sulfur autotrophic bacteria, which can reduce greenhouse gases while purifying malodor, and utilize a solar exhaust emission tower Absorb the heat generated by solar energy, so that the odorous sulfur-containing gas forms an active, zero-energy-consumption natural outflow through hot pressing; in order to achieve the above purpose, the present invention is achieved through the following technical solutions:

An emission reduction system utilizing sulfur autotrophic bacteria to remove odor and greenhouse gases, comprising a reaction tank system, a deodorization system and a condensed water discharge system, the reaction tank system is connected with the deodorization system through an air inlet pipe, and the The deodorization system is connected to the condensed water discharge system through a condensed water discharge pump, the reaction tank system includes a biological reaction tank, a water inlet pipe is connected above one side of the biological reaction tank, and the other side of the biological reaction tank is connected to the air inlet of the air inlet pipe;

The deodorizing system includes a deodorizing box, the bottom of the deodorizing box is connected to the air outlet of the air inlet pipe, and the deodorizing box includes a first bacterial agent pool, a second bacterial agent pool and a third bacterial agent pool. agent pool; the first bacteria agent pool, the second bacteria agent pool and the third bacteria agent pool are respectively connected in turn, and the third bacteria agent pool is communicated with the solar exhaust gas discharge tower;

The condensed water discharge system includes a condensed water discharge pipe, the condensed water discharge pipe is communicated with the deodorization box body, and a sump is provided at the connection between the condensed water discharge pipe and the deodorization box body, and the condensed water discharge pipe is A condensed water discharge pump and a condensed water discharge pipe inspection well are arranged on the pipe, and the first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are respectively connected with the bottom surface of the deodorizing box through a communication mechanism.

The first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are arranged in sequence inside the deodorizing box, the first bacterial agent pool is connected to the air outlet of the air inlet pipe, and the first bacterial agent pool is connected to the air outlet of the air inlet pipe. A first bacterial agent tank inspection well and a first sulfur-containing odor online monitoring instrument are arranged on the bacterial agent tank; a second bacterial agent tank inspection well and a second sulfur-containing malodor online monitoring instrument are set on the second bacterial agent tank; the third The third bacterial agent tank inspection well and the third sulfur-containing odor online monitoring instrument are set on the bacterial agent tank. The first bacterial agent tank inspection well, the second bacterial agent tank inspection well and the third bacterial agent tank inspection well are vertically arranged on the The center position of the upper end of the first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool, the inspection wells of the first bacterial agent pool, the second bacterial agent pool inspection well and the third bacterial agent pool inspection well are respectively A well sealing device is provided, the well sealing device includes a sealing cover and a sealing linkage mechanism, and the sealing cover and the sealing linkage mechanism are connected by an operating rod.

The sealing linkage mechanism includes a linkage cover plate, the linkage cover plate includes a left cover plate and a right cover plate, the left cover plate and the right cover plate are rotatably connected to the cover plate seat, and the cover plate seat has a peripheral ring. A cover plate groove is provided, and the edges of the left cover plate and the right cover plate are embedded in the cover plate grooves on the periphery of the cover plate seat.

The microbial inoculants put in the first bacterial agent pool include Thiobacillus ferrooxidans with a content of 55%-65% and Thiobacillus ferrooxidans with a content of 35%-45%, and the microbial inoculants put in the second bacterial agent pool Including 55%-65% content of Thiobacillus Naples and 35%-45% content of Thiobacillus novelius, the microbial inoculum put in the third bacterial agent pool includes 50%-70% content of Thiobacillus thiophane and 30%-50% content of sulfur-alkali microorganisms.

The communication mechanism includes a DN50 electric butterfly valve and a valve body control unit, and the valve body control unit controls the operation of the DN50 electric butterfly valve.

The left cover plate and the right cover plate are semi-circular structures, and lower protrusions are respectively provided at the fan-shaped edges of the left cover plate and the right cover plate, and the lower protrusions are inlaid with the cover plate grooves. connect.

The length of the tower body of the solar exhaust emission tower needs to be not less than 15m, so as to form an active and zero energy consumption natural drafting and strengthening equipment.

The bottom of the deodorizing box is inclined from the lower end of the first bacterial agent pool to the lower end of the third bacterial agent pool to form a slope, and the slope of the slope is 0.1%-2%.

The upper end of the solar exhaust emission tower is covered with flat-plate solar collectors, the interior of the solar exhaust emission tower is provided with a heat insulation board and a resistance wire, and one side of the solar exhaust emission tower is provided with wind power generation The wind generator is connected with a resistance wire, and a battery is installed inside the wind generator.

The construction method of the emission reduction system includes the following steps:

S1. The biological reaction tank in the reaction tank system is built in the second underground layer, and the air inlet pipe is used to communicate with the deodorizing box in the deodorizing system designed in the second underground layer;

S2. The first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are set up in sequence inside the deodorizing box, and the left side of the first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are arranged in sequence. The first sulfur-containing odor online monitoring instrument, the second sulfur-containing odor online monitoring instrument and the third sulfur-containing odor online monitoring instrument are respectively set on the side;

S3. The first bacterial agent tank inspection well, the second bacterial agent tank inspection well, and the third bacterial agent tank inspection well are vertically arranged at the upper ends of the first bacterial agent pool, the second bacterial agent pool, and the third bacterial agent pool, respectively, and The entrances of the first bacterial agent pool inspection well, the second bacterial agent inspection well and the third bacterial agent inspection well are set on the operation layer of the first underground layer, and the first bacterial agent pool is respectively put into 55%-65% content of suboxide. Thiobacillus ferricum and Thiobacillus thiooxidans with a content of 35%-45%, put 55%-65% Thiobacillus Naples and Thiobacillus novelus with a content of 35%-45% in the second bacterial agent pool respectively, 50%-70% content of Thiobacillus thiobacillus and 30%-50% content of sulfur-alkali microorganisms are put into the third bacterial agent pool respectively. Through the third-level bacterial agent pool, _CO2 can be used as a carbon source, so that _H2 in the stench can be eliminated. S is oxidized to sulfuric acid, and the O ₂ generated in the aeration tank can also be used to convert the H ₂ S in the sulfur-containing odor into elemental sulfur through chemical reaction, reducing the concentration of H ₂ S in the treatment units at all levels and the emission of CO ₂ quantity;

S4. After connecting the bottom end of the solar exhaust gas discharge tower with the deodorization box, make the solar exhaust gas discharge tower pass through the operation layer of the first basement to the ground layer, and discharge the purified odorless gas through the solar exhaust gas discharge tower. Flat-plate solar collectors are attached around the tower body of the exposed solar exhaust emission tower, and a wind turbine is installed on one side of the tower body;

S5. Design the bottom of the deodorizing box as a slope with a slope of 0.1%-2% from left to right, set a sump at the end of the right end of the deodorizing box, and pass the condensed water discharge pipe provided with the condensed water discharge pump. The condensed water is discharged to the sewage pipe network; the inspection well for the condensed water discharge pipe is set on the second underground floor, and the inspection well for the condensed water discharge pipe is reserved on the first underground floor.

Beneficial effects of the present invention:

1. The present invention is used to purify the sulfur-containing malodorous gas emitted by the underground sewage plant. By adopting the solar powerless suction method, the entire deodorizing system can be operated by using solar energy and wind energy, thereby improving the energy self-sufficiency rate of the system and indirectly reducing greenhouse gas emissions. ; The sulfur autotrophic bacteria in the three-level bacterial agent pool can use CO ₂ as a carbon source to directly reduce the generation of greenhouse gases by 30%-50%; realize carbon dioxide fixation while saving energy and reducing consumption;

2. The deodorizing effect of the present invention is remarkable. By adopting the tertiary sulfur autotrophic bacteria microbial inoculum pool, the number of bacteria that can purify sulfur-containing malodors per unit volume is large, the variety is rich, the deodorizing efficiency is significantly improved, and the NIMBY can be effectively alleviated. effect;

3. The present invention has strong sealing, is environmentally friendly, occupies a small area, and has good integration with water features and greening. While ensuring the beauty, the land utilization rate and the value of the surrounding plots are fully improved;

4. The present invention utilizes the advantages of the underground sewage plant, and the water temperature can reach above 12 degrees even in winter, without taking additional thermal insulation measures, which satisfies the suitable temperature of microorganisms; the negative pressure device and the short air supply pipeline, It can effectively reduce the loss of water vapor in the system, and the humidity can be maintained at 20-30% all year round to improve the activity of microorganisms.

5. The present invention utilizes green and clean energy to increase the energy self-sufficiency rate of the deodorizing system, and the underground box occupies a small area and can achieve thermal insulation and moisturizing in the deodorizing system, so as to improve the activity and deodorizing efficiency of the microbial liquid inoculum.

Description of drawings

Fig. 1 is the structural schematic diagram of the sulfur autotrophic bacteria emission reduction greenhouse gas system of the present invention;

Fig. 2 is the installation schematic diagram of the solar exhaust emission tower and the flat-plate solar collector of the present invention;

Fig. 3 is the schematic diagram of the internal structure principle of the second bacterial agent pool inspection well of the present invention;

FIG. 4 is a schematic diagram of the structural principle of the well sealing device of the present invention.

In the figure: 1. Biological reaction tank; 2. Air inlet pipe; 3. Inspection well of the first bacterial agent tank; 4. The first bacterial agent tank; 5. Inspection well of the second bacterial agent tank; 6. The second bacterial agent tank 7. Inspection well of the third bacterial agent tank; 8. The third bacterial agent tank; 9. The first online monitoring instrument for sulfur-containing odor; 10. The second online monitoring instrument for sulfur-containing odor; 11. The third online monitoring for sulfur-containing odor Instrument; 12. Solar exhaust gas discharge tower; 13. Resistance wire; 14. Flat panel solar collector; 15. Wind turbine; 16. Condensate discharge pump; 17. Condensate discharge pipe; 18. Inspection well for condensate discharge pipe ;19, water inlet pipe; 20, DN50 electric butterfly valve, 21, well sealing device, 22, sealing cover, 23, sealing linkage, 24, operating lever, 25, linkage cover, 26, left cover, 27, right Cover, 28. Cover seat.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the present invention is further described:

In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described below with reference to the accompanying drawings and examples.

Example 1:

As shown in Figures 1 to 2, an emission reduction system using sulfur autotrophic bacteria to remove odor and greenhouse gases includes a reaction tank system, a deodorization system and a condensed water discharge system, wherein the reaction tank system includes a biological reaction tank 1, The biological reaction tank 1 is connected with a water inlet pipe 19 and an air inlet pipe 2; the water inlet pipe 19 is used for water inlet, and the air inlet pipe 2 is used to guide the malodorous gas above the biological reaction tank 1 to the deodorization system.

The deodorizing system includes a deodorizing box, the deodorizing box is connected to the other end of the air inlet pipe 2, and the inside of the deodorizing box is provided with a first bacterial agent pool 4, a second bacterial agent pool 6 and a third bacterial agent Pool 8, and the first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 are arranged in sequence inside the deodorizing box, and the bottom of the deodorizing box is a slope with a slope of 0.1%-2%. It flows naturally into the sump.

The first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 are all communicated with the deodorizing box body through a DN50 electric butterfly valve 20; the first bacterial agent pool 4 is provided with a first bacterial agent pool inspection well 3 and The first sulfur-containing malodor online monitoring instrument 9; the second bacterial agent tank 6 is provided with a second bacterial agent tank inspection well 5 and the second sulfur-containing malodor online monitoring instrument 10; The third bacterial agent tank 8 is provided with a third bacterial agent tank The inspection well 7 and the third sulfur-containing odor online monitoring instrument 11, three groups of sulfur-containing odor online monitoring instruments can respectively monitor the concentration of sulfur-containing odor gas in the three bacterial agent pools online. The first bacterial agent tank inspection well 3 , the second microbial agent pool inspection well 5 and the third microbial agent tank inspection well 7 are respectively provided with a well sealing device 21, the well sealing device 21 includes a sealing cover 22 and a sealing linkage mechanism 23, the sealing cover 22 It is connected with the sealing linkage mechanism 23 through the operating rod 24. The sealing linkage mechanism 23 includes a linkage cover plate 25. The linkage cover plate 25 includes a left cover plate 26 and a right cover plate 27. The left cover plate 26 is connected to the right cover plate 26. The cover plate 27 is rotatably connected to the cover plate seat 28. The cover plate seat 28 is provided with a cover plate groove on the circumference. The edges of the left cover plate 26 and the right cover plate 27 are embedded in the cover plate seat 28. in the cover plate groove of the ring.

The first bacterial agent pool inspection well 3, the second bacterial agent inspection well 5 and the third bacterial agent inspection well 7 are vertically arranged on the upper ends of the first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 At the central location, the staff can add sulfur autotrophic bacteria and overhaul the microbial ponds through the three groups of microbial pond inspection wells. The microbial inoculants put in the first inoculant pool 4 include Thiobacillus ferrooxidans with a content of 55%-65% and Thiobacillus ferrooxidans with a content of 35%-45%; the second inoculum pool 6. The microbial inoculants put in include Thiobacillus neapolitanus with a content of 55%-65% and Thiobacillus novellus with a content of 35%-45%; the microbial bacteria put in the third bacterial agent pool 8 The agents include 50%-70% content of Thiobacillus thioparus and 30%-50% content of Thioalkalimicrobium cyclicum. In the present invention, the bacteria groups used in the first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 are all pure bacteria cultivated in the laboratory.

The deodorizing box is also communicated with the solar exhaust gas discharge tower 12. The length of the solar exhaust gas discharge tower 12 needs to be no less than 15m, so as to form an active and zero-energy-consumption natural drafting and strengthening equipment. Therefore, the height of the solar exhaust emission tower 12 is set to a height of 15m, and most of the tower body is set underground. The angle between the device 14 and the solar exhaust emission tower 12 is preferably controlled at 30-60 degrees. On sunny days, an active, zero-energy-consumption natural ventilation strengthening device is formed, and a temperature difference is formed by absorbing the heat generated by the solar radiation, thereby The odorous gas flows out naturally through the wind-pulling effect formed by hot pressing; the interior of the solar exhaust gas discharge tower 12 is provided with a thermal insulation board and a resistance wire 13, and the thermal insulation board is used as a thermal insulation material to improve the heat conversion rate; One side is provided with a wind power generator 15, which is equipped with a battery inside to deal with emergency conditions and store excess power, and the wind power generator 15 is connected with the resistance wire 13, and the power generated by wind power generation makes the solar exhaust gas discharge tower 12. The resistance wire 13 generates heat and ensures the normal operation of the deodorizing system in rainy weather.

The condensed water discharge system includes a condensed water discharge pipe 17. The condensed water discharge pipe 17 is firstly communicated with the deodorizing box body, and then a sump is set at the place where it communicates with the deodorizing box body 17. The condensed water discharge pipe 17 is also provided with condensed water. The discharge pump 16 and the condensate discharge pipe inspection well 18; the condensate discharge system is used to collect the condensate generated when the odor passes through the deodorization system, and the 0.1%-2% slope at the bottom of the condensate deodorization box passes through the DN50 electric ball valve. Open and close into the sump, and use the condensate discharge pump 16 to enter the sewage pipe network. The staff can inspect and maintain it through the inspection well 18 of the condensate discharge pipe on the ground floor.

The solar exhaust emission tower 12 uses thermal pressure to increase the natural ventilation rate in the deodorizing box, and causes a wind pulling effect by absorbing the heat energy of solar radiation, so that the odorous gas flows out naturally; the solar exhaust emission tower 12 is covered with solar panels around the heat collection The device 14 can form an active and zero-energy-consumption natural ventilation strengthening device in sunny days. A thermal insulation board is set inside as a thermal insulation material, and the internal resistance wire 13 generates heat to play a heat conduction role, and the thermal energy generated by the solar exhaust emission tower 12 is introduced. In the deodorant box, the ventilation efficiency is guaranteed.

The wind generator 15 can convert wind energy into electrical energy to heat the resistance wire 13 in the box through the rotation of the blades, and can generate heat through the resistance wire 13 to ensure the normal operation of the deodorization system when the thermal energy pulling effect is low to ensure the normal operation of the deodorization system. It can store the excess electric energy of the wind turbine, which can be used for power supply in rainy weather or emergency situations to ensure normal operation under emergency conditions. Compared with the deodorant fan that is normally on for 24 hours, the above device greatly reduces the energy consumption in the deodorization system, improves the utilization rate of green and low-carbon energy, and realizes the zero power of the deodorization device.

Example 2:

The construction method of the emission reduction system using sulfur autotrophic bacteria to remove odor and greenhouse gas includes the following steps:

S1, the biological reaction tank 1 in the reaction tank system is built in the second underground layer, and the air inlet pipe 2 is used to communicate with the deodorizing box in the deodorizing system designed in the second underground layer;

S2, the first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 are sequentially arranged inside the deodorizing box, and the first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 are arranged in sequence. The left side of the bacterial agent tank 8 is provided with a first sulfur-containing odor online monitoring instrument 9, a second sulfur-containing odor online monitoring instrument 10, and a third sulfur-containing odor online monitoring instrument 11;

S3, vertically set the first bacterial agent pool inspection well 3, the second bacterial agent pool inspection well 5 and the third bacterial agent pool at the upper ends of the first bacterial agent pool 4, the second bacterial agent pool 6 and the third bacterial agent pool 8 Inspection well 7, and the entrances of the first bacterial agent pool inspection well 3, the second bacterial agent pool inspection well 5 and the third bacterial agent pool inspection well 7 are arranged in the operation layer of the first underground layer;

S4. After connecting the bottom end of the solar exhaust emission tower 12 with the deodorizing box, the solar exhaust emission tower 12 is made to pass through the operation layer of the first basement to the ground layer, and the tower body of the solar exhaust emission tower 12 is exposed on the ground layer. A flat-plate solar collector 14 is attached around, and a wind generator 15 is installed on one side of the tower body;

S5. Design the bottom of the deodorizing box as a slope with a slope of 0.1%-2% from left to right, set a sump at the end of the right end of the deodorizing box, and discharge the condensed water through the condensed water discharge pump 16. The pipe 17 discharges the condensed water to the sewage pipe network; the condensed water discharge pipe inspection well 18 is arranged on the second underground floor, and a condensed water discharge pipe inspection well inspection port is reserved on the underground first floor.

The first bacterial agent pool: Thiobacillus ferrooxidans and Thiobacillus thiooxidans are added through the inspection well 3 of the first bacterial agent pool on the basement floor, and their purpose is mainly responsible for purifying the high-concentration _H2 that has just entered the deodorization system S gas, and the first sulfur-containing odor online monitoring instrument 9 can accurately display the concentration of sulfur-containing odor in the first bacterial agent pool 3 .

The second bacterial agent pool: Thiobacillus napleus and Thiobacillus novelos are added through the inspection well 5 of the second bacterial agent pool on the basement floor, which is mainly responsible for purifying the high-concentration H ₂ passing through the second bacterial agent pool 6 S gas, the second sulfur-containing odor online monitoring instrument 10 can accurately display the concentration of sulfur-containing odor in the second bacterial agent pool 6 .

The third bacterial agent tank: Thiobacillus thiobacillus and sulfur-alkali microorganisms are added through the inspection well 7 of the third bacterial agent tank on the basement floor, and the low-concentration H ₂ S gas in the first and second bacterial agent tanks is mainly treated. , the third sulfur-containing odor online monitoring instrument 11 can accurately display the concentration of sulfur-containing odor in the third bacterial agent pool 8 .

The present invention can make the stench pass through the first bacterial agent pool 4, the second bacterial agent pool 6 to the third bacterial agent pool 8 in sequence, and the odorless gas purified by the third bacterial agent pool 8 is discharged through the solar exhaust gas discharge tower 12 to In the atmosphere; because the main component of sulfur-containing odor is hydrogen sulfide, the concentration of H ₂ S before treatment is usually in the range of 10-1000 ppm, and the concentration of CO ₂ that is easily neglected can reach 8,000-20,000 ppm. The purified odorous hydrogen sulfide concentration can finally reach 0.03ppm, and it can reduce the original _CO2 emission by 40-60%.

In the present invention, a solar exhaust gas discharge tower 12 is arranged at the tail end, and by absorbing the heat generated by the solar energy, the odorous sulfur-containing gas is formed to flow out naturally with zero energy consumption through hot pressing. In addition, in the tertiary inoculum tank, the microbial liquid inoculum can not only use CO ₂ as a carbon source to oxidize H ₂ S in the odor to sulfuric acid, but also use the O ₂ generated in the aeration tank to make the sulfur-containing odor through chemical reaction. The H ₂ S in the system is converted into elemental sulfur, which reduces the concentration of H ₂ S in the treatment units at all levels and the emission of CO ₂ .

By eliminating the traditional deodorizing fan, the present invention uses sulfur autotrophic bacteria to remove odorous gas from an underground sewage plant, and at the same time reduces the emission of greenhouse gases, adopts the solar powerless suction method, and saves energy and reduces consumption on the basis of Meet the requirements; use clean energy to purify sulfur-containing malodorous gas and achieve CO ₂ fixation, so as to save energy and reduce consumption and ensure deodorization efficiency.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (10)

1. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas, comprising reaction tank system, deodorization system and condensed water discharge system, it is characterized in that, described reaction tank system is by air inlet pipe and described remover. The odor system is connected, the deodorization system is connected to the condensate discharge system through a condensate discharge pump, the reaction tank system includes a biological reaction tank, and a water inlet pipe is connected above one side of the biological reaction tank, and the biological reaction tank The other side of the pool is connected to the air inlet of the air inlet pipe; The deodorizing system includes a deodorizing box, the bottom of the deodorizing box is connected to the air outlet of the air inlet pipe, and the deodorizing box includes a first bacterial agent pool, a second bacterial agent pool and a third bacterial agent pool. agent pool; the first bacteria agent pool, the second bacteria agent pool and the third bacteria agent pool are respectively connected in turn, and the third bacteria agent pool is communicated with the solar exhaust gas discharge tower; The condensed water discharge system includes a condensed water discharge pipe, the condensed water discharge pipe is communicated with the deodorization box body, and a sump is provided at the connection between the condensed water discharge pipe and the deodorization box body, and the condensed water discharge pipe is A condensed water discharge pump and a condensed water discharge pipe inspection well are arranged on the pipe, and the first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are respectively connected with the bottom surface of the deodorizing box through a communication mechanism. 2. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas according to claim 1, is characterized in that, described first bacterial agent pool, second bacterial agent pool and third bacterial agent pool are in The inside of the deodorizing box is arranged in sequence, the first bacterial agent tank is connected to the air outlet of the air inlet pipe, and the first bacterial agent tank inspection well and the first sulfur-containing odor online monitoring instrument are arranged on the first bacterial agent tank The second bacterial agent pool inspection well and the second sulfur-containing odor online monitoring instrument are set on the second bacterial agent pool; the third bacterial agent pool inspection well and the third sulfur-containing malodor online monitoring instrument are set on the third bacterial agent pool The first bacterial agent pool inspection well, the second bacterial agent pool inspection well and the third bacterial agent pool inspection well are vertically arranged in the upper center of the first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool Position, the said first bacterial agent pool inspection well, the second bacterial agent pool inspection well and the third bacterial agent pool inspection well are respectively provided with well sealing devices, and the well sealing devices include a sealing cover and a sealing linkage mechanism , the sealing cover is connected with the sealing linkage mechanism through an operating rod. 3. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas according to claim 2, is characterized in that, described seal linkage mechanism comprises linkage cover plate, and described linkage cover plate comprises left cover plate and The right cover plate, the left cover plate and the right cover plate are rotatably connected to the cover plate seat, the periphery of the cover plate seat is provided with a cover plate groove, and the edges of the left cover plate and the right cover plate are embedded in the cover plate groove on the circumference of the cover plate seat. 4. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas according to claim 2, it is characterized in that, the microbial inoculum put in described first inoculum agent pool comprises 55%-65% content of microbial inoculum. Thiobacillus ferrooxidans and Thiobacillus ferrooxidans with a content of 35%-45%, and the microbial inoculants put in the second bacterial agent pool include Thiobacillus napolita with a content of 55%-65% and Thiobacillus napolita with a content of 35%-45%. Thiobacillus villus, the microbial inoculum put in the third inoculant pool includes Thiobacillus thiophane with a content of 50%-70% and a sulfur-alkali microorganism with a content of 30%-50%. 5. The emission reduction system according to claim 1, wherein the communication mechanism comprises a DN50 electric butterfly valve and a valve body control unit, wherein the valve body control unit Control the operation of the DN50 electric butterfly valve. 6 . The emission reduction system for removing odor and greenhouse gases using sulfur autotrophic bacteria according to claim 3 , wherein the left cover plate and the right cover plate are semicircular structures, and the left cover The cover plate and the fan-shaped edge of the right cover plate are respectively provided with lower protrusions, and the lower protrusions are inlaid and connected with the cover plate groove. 7. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas according to claim 1, is characterized in that, the tower body length of described solar exhaust gas discharge tower needs to be not less than 15m, to form active, Zero energy consumption of natural ventilation to strengthen equipment. 8. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas according to claim 1, it is characterized in that, the bottom of described deodorizing box is from the lower end of the first bacterial agent pool to the third bacterial agent The lower end of the pool is inclined to form a slope, and the slope of the slope is 0.1%-2%. 9. a kind of emission reduction system utilizing sulfur autotrophic bacteria to remove malodor and greenhouse gas according to claim 1, is characterized in that, the upper end of described solar exhaust gas discharge tower is covered with flat plate solar collectors all around, The interior of the solar exhaust emission tower is provided with a heat insulation board and a resistance wire, and a wind generator is arranged on one side of the solar exhaust emission tower; the wind generator is connected with the resistance wire, and the interior of the wind generator is A battery is installed. 10. The construction method of the emission reduction system according to any one of claims 1-9, characterized in that, comprising the following steps: S1. The biological reaction tank in the reaction tank system is built in the second underground layer, and the air inlet pipe is used to communicate with the deodorizing box in the deodorizing system designed in the second underground layer; S2. The first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are set up in sequence inside the deodorizing box, and the left side of the first bacterial agent pool, the second bacterial agent pool and the third bacterial agent pool are arranged in sequence. The first sulfur-containing odor online monitoring instrument, the second sulfur-containing odor online monitoring instrument and the third sulfur-containing odor online monitoring instrument are respectively set on the side; S3. The first bacterial agent tank inspection well, the second bacterial agent tank inspection well, and the third bacterial agent tank inspection well are vertically arranged at the upper ends of the first bacterial agent pool, the second bacterial agent pool, and the third bacterial agent pool, respectively, and The entrances of the first bacterial agent pool inspection well, the second bacterial agent inspection well and the third bacterial agent inspection well are set on the operation layer of the first underground layer, and the first bacterial agent pool is respectively put into 55%-65% content of suboxide. Thiobacillus ferricum and Thiobacillus thiooxidans with a content of 35%-45%, put 55%-65% Thiobacillus Naples and Thiobacillus novelus with a content of 35%-45% in the second bacterial agent pool respectively, 50%-70% content of Thiobacillus thiobacillus and 30%-50% content of sulfur-alkali microorganisms are put into the third bacterial agent pool respectively. Through the third-level bacterial agent pool, _CO2 can be used as a carbon source, so that _H2 in the stench can be eliminated. S is oxidized to sulfuric acid, and the O ₂ generated in the aeration tank can also be used to convert the H ₂ S in the sulfur-containing odor into elemental sulfur through chemical reaction, reducing the concentration of H ₂ S in the treatment units at all levels and the emission of CO ₂ quantity; S4. After connecting the bottom end of the solar exhaust gas discharge tower with the deodorization box, make the solar exhaust gas discharge tower pass through the operation layer of the first basement to the ground layer, and discharge the purified odorless gas through the solar exhaust gas discharge tower. Flat-plate solar collectors are attached around the tower body of the exposed solar exhaust emission tower, and a wind turbine is installed on one side of the tower body; S5. Design the bottom of the deodorizing box as a slope with a slope of 0.1%-2% from left to right, set a sump at the end of the right end of the deodorizing box, and pass the condensed water discharge pipe provided with the condensed water discharge pump. The condensed water is discharged to the sewage pipe network; the inspection well for the condensed water discharge pipe is set on the second underground floor, and the inspection well for the condensed water discharge pipe is reserved on the first underground floor.

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