Sulfur autotrophic nitrogen removal bioreactor capable of automatically adjusting sulfur-nitrogen ratio and temperature

By automatically adjusting the sulfur-nitrogen ratio and temperature through the sulfur autotrophic denitrification bioreactor, the sulfur-nitrogen ratio and temperature are detected and adjusted in real time, which solves the problems of incomplete reaction and increased cost in the sulfur autotrophic denitrification process and improves the denitrification efficiency and bacterial growth rate.

CN223397559UActive Publication Date: 2025-09-30HUBEI HAORUIDA ENVIRONMENTAL PROTECTION ENERGY TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422666503.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-09-30
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

In the existing sulfur autotrophic denitrification process, automatic adjustment of the sulfur-nitrogen ratio and temperature is difficult to achieve, resulting in incomplete reaction or increased costs, and significantly affecting bacterial growth and denitrification rate.

Method used

A sulfur-autotrophic denitrification bioreactor with automatic adjustment of sulfur-nitrogen ratio and temperature was designed. The sulfur-nitrogen ratio and temperature were detected and adjusted in real time by a sulfur-nitrogen meter and a temperature tester. The feed valve and heating plate were controlled by a microcontroller to achieve automatic adjustment, ensuring that the sulfur-nitrogen ratio and temperature in the reactor were within the optimal range.

Benefits of technology

It improves the denitrification reaction efficiency and bacterial growth rate, ensures that the sulfur-nitrogen ratio and temperature in the reactor are in the optimal state, and enhances the denitrification effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223397559U_ABST
    Figure CN223397559U_ABST
Patent Text Reader

Abstract

A sulfur autotrophic nitrogen removal bioreactor capable of automatically adjusting sulfur-nitrogen ratio and temperature is characterized in that a wastewater tank is arranged at the lower end of the sulfur autotrophic nitrogen removal bioreactor, and a gas distribution area, a biological filler area and a water outlet area are respectively arranged at the upper end of the sulfur autotrophic nitrogen removal bioreactor; the gas distribution area is provided with a discharging pipeline and a feeding pipeline; the reaction detection device comprises a sulfur and nitrogen tester and a microcontroller; the system further comprises a temperature adjusting device, the temperature adjusting device comprises a temperature tester and a heating piece, the temperature tester is arranged on the sulfur autotrophic nitrogen removal bioreactor, and the heating piece is arranged on the wastewater tank. The sulfur-nitrogen determinator detects the sulfur-nitrogen ratio in the wastewater tank all the time, and a sulfur ion solution is supplemented into the sulfur autotrophic nitrogen removal bioreactor through the feeding pipeline to serve as an electron donor, so that the sulfur-nitrogen ratio is in a ratio suitable for a nitrogen removal reaction, and the nitrogen removal reaction efficiency is improved; meanwhile, a temperature tester detects the temperature condition in the wastewater tank all the time, the temperature environment is adjusted through a heating piece, and the growth rate of bacteria and the denitrification rate are increased.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model specifically relates to a sulfur autotrophic denitrification bioreactor which can automatically adjust the sulfur-nitrogen ratio and temperature. Background Art

[0002] The existing sulfur autotrophic denitrification process often uses sulfur as a reducing agent during microbial purification treatment to reduce nitrate or nitrite in wastewater into nitrogen gas, thereby reducing the total nitrogen in the wastewater. In the sulfur autotrophic denitrification process, the initial sulfur-nitrogen ratio reaction plays a very important role. A too low sulfur-nitrogen ratio can easily lead to incomplete reaction. A too high sulfur-nitrogen ratio not only leads to increased costs, but also has the possibility of nitrate being reduced to ammonium. At the same time, temperature is an important environmental factor for the sulfur autotrophic denitrification process, which has a significant impact on bacterial growth and denitrification rate. Therefore, there is an urgent need for a sulfur autotrophic denitrification bioreactor that can automatically adjust the sulfur-nitrogen ratio and temperature. Utility Model Content

[0003] In view of the above, the present invention provides a sulfur autotrophic denitrification bioreactor which can automatically adjust the sulfur-nitrogen ratio and temperature to solve the problems raised in the above background technology.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: providing a sulfur autotrophic denitrification bioreactor which can automatically adjust the sulfur-nitrogen ratio and temperature, wherein the lower end of the sulfur autotrophic denitrification bioreactor is provided with a wastewater tank for storing wastewater containing nitrate and nitrite, and the upper end of the sulfur autotrophic denitrification bioreactor is respectively provided with an air distribution area, a biological filler area and a water outlet area; the air distribution area is provided with a discharge pipe and a feed pipe, and a discharge valve is installed on the discharge pipe for discharging nitrogen; the feed pipe is provided with a feed valve for supplementing sodium sulfide, sulfide ion solution or elemental sulfur as an electron donor; and further comprising a reaction detection device for detecting the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor, the reaction detection device The invention comprises a sulfur-nitrogen meter and a microcontroller, wherein the sulfur-nitrogen meter is arranged on one side of the sulfur autotrophic denitrification bioreactor, the microcontroller is arranged on the sulfur autotrophic denitrification bioreactor, and the detection end of the sulfur-nitrogen meter is installed in the wastewater tank. The sulfur-nitrogen meter is connected to the microcontroller and the input end of the feed valve to adjust the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor; and further comprises a temperature regulating device for regulating the temperature in the sulfur autotrophic denitrification bioreactor, the temperature regulating device comprises a temperature tester and a heating plate, the temperature tester is arranged on the sulfur autotrophic denitrification bioreactor, the detection end of the temperature tester is installed in the wastewater tank, the heating plate is arranged on the wastewater tank, and the temperature tester is connected to the input end of the heating plate.

[0005] Preferably, a plurality of mounting grooves are provided on the biological filler area, and filler plates are detachably mounted in the mounting grooves.

[0006] Preferably, coral stone and suspended ball fillers are provided in the filler plate.

[0007] Preferably, the water outlet area includes a water outlet pipe, a water outlet pump, and a water outlet valve. The water outlet pipe is connected between the water outlet pump and the wastewater tank, and the water outlet valve is installed on the water outlet pipe.

[0008] Preferably, a sewage outlet is provided at the bottom of the sulfur autotrophic denitrification bioreactor, and the sewage outlet is connected to a sewage pipe.

[0009] Preferably, the method further comprises a pH detector arranged in the sulfur autotrophic denitrification bioreactor for detecting the pH value in the wastewater tank.

[0010] Preferably, the method further comprises a display screen arranged on the sulfur autotrophic denitrification bioreactor, wherein the display screen is respectively connected to the output ends of the sulfur and nitrogen meter, the temperature tester and the pH value detector.

[0011] Preferably, the sulfur autotrophic denitrification bioreactor is provided with a feed port, and a sealing cover is installed on the feed port.

[0012] The sulfur autotrophic denitrification bioreactor of the utility model is provided with a sulfur-nitrogen measuring instrument to constantly detect the sulfur-nitrogen ratio in the wastewater tank, and sodium sulfide, a sulfur ion solution or elemental sulfur is added to the sulfur autotrophic denitrification bioreactor through a feed pipe as an electron donor, so that the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor is at a ratio suitable for the denitrification reaction, thereby improving the denitrification reaction efficiency;

[0013] At the same time, by setting up a temperature tester and a heating plate, the temperature tester constantly detects the temperature in the wastewater tank, and the heating plate adjusts the temperature environment in the sulfur autotrophic denitrification bioreactor, so that the temperature in the sulfur autotrophic denitrification bioreactor is at the optimal growth temperature of denitrifying Thiobacillus, thereby improving the growth of bacteria and the denitrification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a circuit principle diagram of the utility model.

[0016] In the figure, 1. Sulfur autotrophic denitrification bioreactor; 2. Wastewater tank; 3. Sulfur and nitrogen meter; 4. Microcontroller; 5. Feed valve; 6. Feed pipe; 7. Discharge valve; 8. Discharge pipe; 9. Temperature tester; 10. Heating plate; 11. Filling plate; 12. Outlet pipe; 13. Outlet valve; 14. Outlet pump; 15. Display screen; 16. Sewage pipe; 17. Feed port; 18. Sealing cover; 19. pH detector. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and some embodiments.

[0018] exist Figure 1-2 In the invention, a sulfur autotrophic denitrification bioreactor 1 capable of automatically adjusting the sulfur-nitrogen ratio and temperature is provided. The lower end of the sulfur autotrophic denitrification bioreactor 1 is provided with a wastewater tank 2 for storing wastewater containing nitrate and nitrite, and the upper end of the sulfur autotrophic denitrification bioreactor 1 is respectively provided with a gas distribution area, a biological filler area and a water outlet area; when in use, the waste gas containing hydrogen sulfide generated in the sewage pool is absorbed by the alkaline solution in the desulfurization tower, and the absorption liquid is input into the sulfur autotrophic denitrification bioreactor 1 as a nutrient solution to carry out the sulfur autotrophic biological denitrification process.

[0019] In this embodiment, the gas distribution area is provided with a discharge pipe 8 and a feed pipe 6, and a discharge valve 7 is installed on the discharge pipe 8 for discharging nitrogen; a feed valve 5 is installed on the feed pipe 6 for supplementing sodium sulfide, sulfide ion solution or elemental sulfur as an electron donor; and further includes a reaction detection device for detecting the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor 1, the reaction detection device includes a sulfur-nitrogen meter 3 and a microcontroller 4, the sulfur-nitrogen meter 3 is arranged on one side of the sulfur autotrophic denitrification bioreactor 1, the microcontroller 4 is arranged on the sulfur autotrophic denitrification bioreactor 1, and the detection end of the sulfur-nitrogen meter 3 is installed in the wastewater tank 2, the sulfur-nitrogen meter 3 is connected to the microcontroller 4 and the feed valve 5. The input end of the valve 5 is used to adjust the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor 1; when the sulfur autotrophic denitrification bioreactor 1 is performing the sulfur autotrophic biological denitrification process, the sulfur-nitrogen meter 3 constantly detects the sulfur-nitrogen ratio in the wastewater tank 2, transmits the sulfur-nitrogen ratio detection data to the microcontroller 4 for analysis, and adjusts the feed valve 5 to open through the signal transmission of the microcontroller 4, and supplements sodium sulfide, sulfide ion solution or elemental sulfur as an electron donor into the sulfur autotrophic denitrification bioreactor 1 through the feed pipe 6, so that the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor 1 is at a ratio suitable for the denitrification reaction, thereby improving the denitrification reaction efficiency; in this embodiment, the optimal sulfur-nitrogen ratio is 5:3 or 5:2.

[0020] In this embodiment, a temperature regulating device for regulating the temperature in the sulfur autotrophic denitrification bioreactor 1 is further included. The temperature regulating device includes a temperature tester 9 and a heating plate 10. The temperature tester 9 is arranged on the sulfur autotrophic denitrification bioreactor 1, and the testing end of the temperature tester 9 is installed in the wastewater tank 2. The heating plate 10 is arranged on the wastewater tank 2, and the temperature tester 9 is connected to the input end of the heating plate 10. When the sulfur autotrophic denitrification bioreactor 1 is performing the sulfur autotrophic biological denitrification process, the temperature tester 9 constantly detects the temperature in the wastewater tank 2, transmits the temperature detection data to the microcontroller 4 for analysis, and controls the heating plate 10 to operate through signal transmission from the microcontroller 4, thereby heating and regulating the temperature environment in the sulfur autotrophic denitrification bioreactor 1, so that the temperature in the sulfur autotrophic denitrification bioreactor 1 is at the optimal growth temperature of denitrifying Thiobacillus, thereby improving the growth and denitrification rate of the bacteria. In this embodiment, the growth temperature of denitrifying Thiobacillus is better in the range of 20.0°C to 35.0°C, with the optimal temperature being around 30°C.

[0021] In this embodiment, a plurality of mounting grooves are provided on the biological filler area, and the filler plates 11 are detachably mounted in the mounting grooves. The detachable mounting of the filler plates 11 facilitates cleaning and replacement, and avoids clogging of the filler plates 11 .

[0022] In this embodiment, coral stones and suspended ball fillers are provided in the filler plate 11; the outlet area includes an outlet pipe 12, an outlet pump 14, and an outlet valve 13, the outlet pipe 12 is connected between the outlet pump 14 and the wastewater tank 2, and the outlet valve 13 is installed on the outlet pipe 12; the coral stones and suspended ball fillers are used to absorb nitrates and nitrites contained in the wastewater, so that the treated nitrate and nitrite wastewater can be discharged through the outlet pipe 12 or other channels in compliance with the discharge standards.

[0023] In this embodiment, a sewage outlet is provided at the bottom of the sulfur autotrophic denitrification bioreactor 1, which is connected to a sewage pipe 16; waste materials in the wastewater tank 2 after long-term operation are discharged through the sewage pipe 16, which is helpful for the maintenance of the sulfur autotrophic denitrification bioreactor 1.

[0024] In this embodiment, a pH detector 19 is further included, which is arranged in the sulfur autotrophic denitrification bioreactor 1 and is used to detect the pH value in the wastewater tank 2. The sulfur autotrophic denitrification bioreactor 1 is provided with a feed port 17, and a sealing cover 18 is installed on the feed port 17. When the sulfur autotrophic denitrification bioreactor 1 is performing the sulfur autotrophic biological denitrification process, the pH detector 19 constantly detects the pH value in the wastewater tank 2, transmits the pH value detection data to the microcontroller 4 for analysis, and displays the pH value on the display screen 15 through the signal transmission of the microcontroller 4, so that the staff can add alkaline or acidic substances to the wastewater tank 2 through the feed port 17, adjust the optimal pH value in the wastewater tank 2 to about 7.0, and improve the denitrification reaction efficiency.

[0025] In this embodiment, a display screen 15 is further included which is arranged on the sulfur autotrophic denitrification bioreactor 1. The display screen 15 is connected to the output ends of the sulfur-nitrogen meter 3, the temperature tester 9 and the pH value detector 19 respectively. The sulfur-nitrogen ratio, temperature and pH value in the sulfur autotrophic denitrification bioreactor 1 are displayed on the display screen 15, so that the staff can know the denitrification biological reaction status in the sulfur autotrophic denitrification bioreactor 1 in time to deal with various emergencies.

[0026] In this embodiment, the sulfur-nitrogen analyzer 3 is a common sulfur-nitrogen ratio detection device, such as the REK-20SN model, the ST-1545 model, and the TSN-3000 model.

[0027] In this embodiment, the temperature tester 9 is a common temperature testing and detection device, such as the HY4500 series, UT3216 multi-channel temperature tester, etc.

[0028] In this embodiment, the pH detector 19 is a common pH detection device, such as ARH10 PRO model, pH-103 model, etc.

[0029] In this embodiment, the microcontroller 4 is a common electrical component, such as a single chip microcomputer of the AT89C2051 or TMS320VC5509A model.

[0030] In this embodiment, the control circuit of the present invention is a common circuit in the circuit field. The device of the present invention can be connected to an external power supply through a power cord to provide power to the device. Technicians in the relevant technical field can implement it and will not be elaborated here.

[0031] During the specific implementation of the utility model, after the waste gas containing hydrogen sulfide generated in the sewage pool is absorbed by the alkaline solution in the desulfurization tower, the absorption liquid is input into the sulfur autotrophic denitrification bioreactor 1 as a nutrient solution to carry out the sulfur autotrophic biological denitrification process; a sulfur-nitrogen measuring instrument 3 constantly detects the sulfur-nitrogen ratio in the wastewater tank 2, transmits the sulfur-nitrogen ratio detection data to the microcontroller 4 for analysis, and controls the feed valve 5 to open through the signal transmission of the microcontroller 4, and adds sodium sulfide, sulfide ion solution or elemental sulfur as an electron donor into the sulfur autotrophic denitrification bioreactor 1 through the feed pipe 6, so that the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor 1 is at a ratio suitable for the denitrification reaction, thereby improving the denitrification reaction efficiency; a temperature measuring instrument 9 constantly detects the temperature in the wastewater tank 2, transmits the temperature detection data to the microcontroller 4 for analysis, and controls the heating plate 10 to operate through the signal transmission of the microcontroller 4, thereby heating and adjusting the temperature environment in the sulfur autotrophic denitrification bioreactor 1, so that the temperature in the sulfur autotrophic denitrification bioreactor 1 is at the optimal growth temperature of denitrifying Thiobacillus, thereby improving the growth of bacteria and the denitrification rate.

[0032] It is worth noting that: in the description of this utility model, the meaning of "plurality" is two or more, unless otherwise clearly specified and specifically defined. In this utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; the circuits described in this utility model are all commonly used circuits in the field, and other related components are all existing commonly used components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and is intended to encompass all variations within the meaning and scope of the claims. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature, characterized by: The lower end of the sulfur autotrophic denitrification bioreactor is provided with a wastewater tank for storing wastewater containing nitrate and nitrite, and the upper end of the sulfur autotrophic denitrification bioreactor is respectively provided with an air distribution area, a biological filler area and a water outlet area; The gas distribution area is provided with a discharge pipe and a feed pipe. The discharge pipe is provided with a discharge valve for discharging nitrogen; the feed pipe is provided with a feed valve for replenishing sodium sulfide, sulfide ion solution or elemental sulfur as an electron donor; The system also includes a reaction detection device for detecting the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor, the reaction detection device including a sulfur-nitrogen meter and a microcontroller, the sulfur-nitrogen meter being arranged on one side of the sulfur autotrophic denitrification bioreactor, the microcontroller being arranged on the sulfur autotrophic denitrification bioreactor, and a detection end of the sulfur-nitrogen meter being installed in the wastewater tank, the sulfur-nitrogen meter being connected to the microcontroller and an input end of a feed valve to adjust the sulfur-nitrogen ratio in the sulfur autotrophic denitrification bioreactor; It also includes a temperature regulating device for regulating the temperature inside the sulfur autotrophic denitrification bioreactor, the temperature regulating device including a temperature tester and a heating plate, the temperature tester is arranged on the sulfur autotrophic denitrification bioreactor, and the test end of the temperature tester is installed in the wastewater tank, the heating plate is arranged on the wastewater tank, and the temperature tester is connected to the input end of the heating plate.

2. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 1, characterized in that: The biological filler area is provided with a plurality of installation grooves, and the filler plates are detachably installed in the installation grooves.

3. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 2, characterized in that: The filler plate is provided with coral stones and suspended ball fillers.

4. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 1, characterized in that: The water outlet area includes a water outlet pipe, a water outlet pump, and a water outlet valve. The water outlet pipe is connected between the water outlet pump and the wastewater tank, and the water outlet valve is installed on the water outlet pipe.

5. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the sulfur autotrophic denitrification bioreactor, and the sewage outlet is connected to a sewage pipe.

6. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 1, characterized in that: The invention also includes a pH value detector which is arranged in the sulfur autotrophic denitrification bioreactor and is used to detect the pH value in the wastewater tank.

7. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 6, characterized in that: The device also comprises a display screen arranged on the sulfur autotrophic denitrification bioreactor, and the display screen is respectively connected to the output ends of the sulfur and nitrogen meter, the temperature tester and the pH value detector.

8. The sulfur autotrophic denitrification bioreactor capable of automatically adjusting the sulfur-nitrogen ratio and temperature according to claim 1, characterized in that: The sulfur autotrophic denitrification bioreactor is provided with a feed inlet, and a sealing cover is installed on the feed inlet.