A sewage plant inter-grating deodorization device

Abstract

The utility model relates to a sewage plant grid inter-deodorization device belongs to waste gas treatment technical field, the device includes control box, atomizer, grid, grid and pool, control box surface is equipped with observation window, and control screen is embedded into observation window, and control box inside is equipped with regenerated water metering pump, biological deodorization liquid metering pump and mixer, and control box bottom is equipped with regenerated water entrance connection, biological deodorization liquid entrance connection and mixed liquid outlet connection, and mixed liquid outlet is connected with the atomizer of the overground part of grid inter through water pipe, and the atomizer is equipped with atomizing disc, and the atomizer is installed in the upper of grid, and the grid is placed in the underground part of grid inter, and the grid inter is communicated with the pool. The device adopts the method that biological agent combines temperature and humidity sensor and multi-gas sensor, realizes automatic precision deodorization, avoids the overuse of biological agent, effectively removes the stench of the grid inter in the sewage treatment process.

Description

Technical Field

[0001] This utility model relates to a deodorization device for the bar screen of a sewage treatment plant, belonging to the field of waste gas treatment technology. Background Technology

[0002] Currently, wastewater treatment plants often have complex influent compositions, producing various odorous gases such as hydrogen sulfide and ammonia. These gases are released into the surrounding environment, causing serious impacts on the ecological environment and posing significant health risks. Various odorous gas treatment methods aim to alter the material structure of these gases through physical, chemical, and biological processes to eliminate the odor. Common methods include activated carbon adsorption, which uses the large specific surface area and porous structure of activated carbon to adsorb odor molecules. However, activated carbon is easily saturated, requiring frequent replacement or regeneration, resulting in high operating costs. This method is suitable for treating low-concentration, small-volume odors or as a backup for other treatment processes. Chemical scrubbing involves countercurrent contact between odorous gases and chemical solutions in a scrubbing tower, resulting in acid-base neutralization, oxidation-reduction, and other chemical reactions to remove odorous components. However, this method generates chemical wastewater that requires secondary treatment. Biological filters allow odorous gases to pass through moist, porous filter media (such as soil, compost, or sawdust), where a microbial film on the filter surface degrades pollutants. However, this method requires a large area and the filter media needs regular replacement. Therefore, there is an urgent practical need to develop an environmentally friendly, low-cost, simple and efficient deodorization device for wastewater treatment plant screens. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a deodorization device for the bar screen of a sewage treatment plant. This device uses biological agents combined with temperature and humidity sensors and multiple gas sensors to achieve automated and precise deodorization, avoid the overuse of biological agents, and effectively remove the odor generated in the bar screen during sewage treatment.

[0004] The technical solution adopted by this utility model is as follows: a deodorization device for a wastewater treatment plant's bar screen compartment, comprising a control box, a sprayer, a bar screen, a bar screen compartment, and a water tank. An observation window is provided on the front side of the control box, and a control panel is embedded in the observation window. Inside the control box are a reclaimed water metering pump, a biological deodorizing liquid metering pump, and a mixer. One end of each of the reclaimed water metering pump and the biological deodorizing liquid metering pump is connected to the mixer, and the other end of the reclaimed water metering pump is connected to the reclaimed water inlet at the bottom of the control box. The other end of the biological deodorizing liquid metering pump is connected to the biological deodorizing liquid inlet at the bottom of the control box. The outlet of the mixer is connected to the mixed liquid outlet at the bottom of the control box. The mixed liquid outlet is connected to the sprayer on the ground floor of the bar screen compartment via a water pipe. The sprayer contains an atomizing disc and is installed above the bar screen. The bar screen is placed in the underground part of the bar screen compartment, which is connected to the water tank.

[0005] Furthermore, the device also includes a multi-gas sensor, which is mounted on the sidewall between the grids.

[0006] Furthermore, the device also includes a temperature and humidity sensor, which is disposed on the side wall of the grid opposite the multi-gas sensor.

[0007] Furthermore, the atomizing disc includes atomizing blades, a water inlet, and an air inlet.

[0008] Furthermore, the temperature and humidity sensor and the multi-gas sensor are electrically connected to the control box.

[0009] The beneficial effects of this invention are as follows: The device utilizes temperature and humidity sensors to monitor environmental conditions in real time and automatically adjusts them through a control box to create and maintain the most suitable working temperature and humidity for the microorganisms in the biological deodorizing liquid, ensuring stable deodorization efficiency; it uses multiple gas sensors to monitor the concentration of different odor components in real time and adjusts the spray formula of the deodorizing agent to achieve precise deodorization and significantly reduce operating costs; it uses a control panel and metering pump to set the spraying time and spraying volume of the mixture of biological deodorizing liquid and reclaimed water, effectively reducing operating costs; the biological deodorizing liquid droplets come into full contact with odor molecules in the air and decompose them into harmless substances through absorption and biodegradation, effectively avoiding secondary pollution and ensuring safety and environmental protection. Attached Figure Description

[0010] Figure 1 This is a front view of the structure of a deodorization device in the bar screen of a sewage treatment plant.

[0011] Figure 2 This is a bottom view of the atomizing disc.

[0012] Figure 3 This is a front view of the glass door structure between the grilles.

[0013] In the diagram: 1. Control box, 1a. Control panel, 1b. Reclaimed water metering pump, 1c. Observation window, 1d. Biological deodorizing liquid metering pump, 1e. Reclaimed water inlet, 1f. Biological deodorizing liquid inlet, 1g. Mixed liquid outlet, 1h. Mixer, 2. Water pipe, 3. Sprayer, 3a. Atomizing disc, 3b. Atomizing blade, 3c. Water inlet, 3d. Air inlet, 4. Grille, 5. Temperature and humidity sensor, 6. Multi-gas sensor, 7. Grille compartment, 8. Water tank. Detailed Implementation

[0014] The present invention will be described below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1An odor control device for a wastewater treatment plant's bar screen compartment is shown. It includes a control box 1, a sprayer 3, a bar screen 4, a bar screen compartment 7, and a water tank 8. The control box 1 has an observation window 1c on its front side, and a control panel 1a is embedded in the observation window 1c. The control box 1 contains a reclaimed water metering pump 1b, a biological deodorizing liquid metering pump 1d, and a mixer 1h. One end of the reclaimed water metering pump 1b and the biological deodorizing liquid metering pump 1d is connected to the mixer 1h. The other end of the reclaimed water metering pump 1b is connected to the reclaimed water inlet 1e at the bottom of the control box 1. The other end of the biological deodorizing liquid metering pump 1d is connected to the biological deodorizing liquid inlet 1f at the bottom of the control box 1. The outlet of the mixer 1h is connected to the mixed liquid outlet 1g at the bottom of the control box 1. The mixed liquid outlet 1g is connected to the sprayer 3 on the above-ground part of the bar screen compartment 7 through a water pipe 2. The sprayer 3 is installed above the bar screen 4, which is placed in the underground part of the bar screen compartment 7. The bar screen compartment 7 is connected to the water tank 8. The sprayer 3 is equipped with an atomizing disc 3a, which includes atomizing blades 3b, a water inlet 3c, and an air inlet 3d.

[0016] The device also includes a multi-gas sensor 6, which is mounted on the side wall of the grille chamber 7. It also includes a temperature and humidity sensor 5, which is mounted on the side wall of the grille chamber 7 opposite to the multi-gas sensor 6. The grille chamber 7 is equipped with a glass door for easy observation of the deodorization device's operation.

[0017] The biological deodorizing liquid, through the combined biochemical and decomposition processes of various microorganisms, produces inorganic acids that effectively remove hydrogen sulfide, ammonia, and odors, fundamentally biochemically degrading substances that produce malodorous gases. When used, it is mixed evenly with reclaimed water and sprayed. Long-term use can form a beneficial microbial community in the environment. The biological deodorizing liquid is atomized into the space through the sprayer 3 and atomizing disc 3a, forming microparticles that fully contact and adsorb odor molecules in the air. Through absorption and biodegradation, these molecules are decomposed into harmless substances. The atomized deodorizing liquid can reach every corner of the grille 7, including poorly ventilated and hard-to-reach areas, achieving thorough deodorization. Simultaneously, the tiny droplets, due to their light weight, can remain suspended in the air for a longer period, greatly extending the contact and reaction time with odor molecules in the flowing air, ensuring the purification effect.

[0018] The core of biological deodorizing liquid is microorganisms. The activity and deodorizing efficiency of microorganisms are closely related to the temperature and humidity of the environment. If the temperature is too low, the microorganisms will enter a dormant state, and the deodorizing reaction rate will drop sharply; if the temperature is too high, the microorganisms will be killed. Temperature sensor data allows the system to sense the ambient temperature. At low temperatures, the system can appropriately increase the spray frequency or the duration of each spray, compensating for the efficiency decrease caused by the low temperature by increasing the dosage of the deodorizing agent, ensuring stable deodorizing effects. The microbial biofilm attached to the surface of objects needs suitable environmental humidity to maintain its activity. If the humidity is too low, the biofilm will dry out and die; however, if the humidity is too high, the atomized deodorizing liquid cannot evaporate effectively, turning into small water droplets that fall or adhere to the walls. The humidity sensor, based on real-time humidity, atomizes the liquid when the humidity is suitable, ensuring that every drop of deodorizing liquid is used in the reaction, thereby significantly saving on agent consumption.

[0019] The multi-gas sensor 6 can identify the concentration ratio of different components in the odor. After receiving the data, the control box 1 performs intelligent analysis, and the operator connects the appropriate biological deodorizing liquid according to the prompts.

[0020] Specific workflow:

[0021] The multi-gas sensor 6 continuously monitors key odor parameters in the grille compartment 7 and transmits the data to the control box 1 in real time; the temperature and humidity sensor 5 continuously monitors the ambient temperature and relative humidity and transmits the data to the control box 1 in real time; the control box 1 receives and displays all sensor data, and the internal program continuously compares the real-time data with the preset data and provides prompts.

[0022] Select a targeted biological deodorizing liquid based on sensor data. Set the spraying time and spray volume on the control panel 1a. Observe the operation of the internal reclaimed water metering pump 1b through the observation window 1c. Reclaimed water and biological deodorizing liquid are injected into the reclaimed water metering pump 1b and biological deodorizing liquid metering pump 1d inside the control box 1 through the reclaimed water inlet 1e and biological deodorizing liquid inlet 1f, respectively. Then, they flow into the mixer 1h for uniform mixing. The mixture of reclaimed water and biological deodorizing liquid flows out from the mixer 1h and is transported to the high-level sprayer 3 through the mixture outlet 1g and water pipe 2. The atomizing disc 3a includes atomizing blades 3b, a water inlet 3c, and an air inlet 3d. The mixture enters the high-speed rotating atomizing disc 3a from the water inlet 3c, centrifuging the mixed liquid into small droplets, which then freely diffuse onto the grid 4 for deodorization.

[0023] Combined with temperature and humidity sensor 5, control box 1 can execute refined control strategies:

[0024] Mode 1: Humidity Priority Mode

[0025] When the real-time humidity is >85%, turn off sprayer 3;

[0026] When the real-time humidity is <80% and the grid 7 is running, start the sprayer 3.

[0027] Mode 2: Temperature Compensation Mode

[0028] When the real-time temperature is <15°C, shorten the atomization interval of sprayer 3 by 20% and increase the amount of pesticide sprayed.

[0029] When the real-time temperature is >15°C, operate according to the standard procedure.

[0030] Mode 3: Linked Ventilation Mode

[0031] When the real-time humidity is >85%, the ventilation in the grille 7 is enhanced, while the atomization frequency of the sprayer 3 is reduced to achieve synergistic cooling.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wastewater treatment plant odor control device for bar screens, comprising a bar screen (4), a bar screen chamber (7), and a water tank (8), characterized in that: It also includes a control box (1) and a sprayer (3). The control box (1) has an observation window (1c) on the front side, and the control panel (1a) is embedded in the observation window (1c). The control box (1) is equipped with a reclaimed water metering pump (1b), a biological deodorizing liquid metering pump (1d), and a mixer (1h). One end of the reclaimed water metering pump (1b) and the biological deodorizing liquid metering pump (1d) is connected to the mixer (1h), and the other end of the reclaimed water metering pump (1b) is connected to the reclaimed water inlet (1e) at the bottom of the control box (1). The other end of the liquid metering pump (1d) is connected to the biological deodorizing liquid inlet (1f) at the bottom of the control box (1), the outlet of the mixer (1h) is connected to the mixed liquid outlet (1g) at the bottom of the control box (1), and the mixed liquid outlet (1g) is connected to the sprayer (3) on the ground part of the grid room (7) through the water pipe (2); the sprayer (3) is equipped with an atomizing plate (3a), the sprayer (3) is installed above the grid (4), the grid (4) is placed in the underground part of the grid room (7), and the grid room (7) is connected to the water tank (8).

2. The apparatus according to claim 1, characterized in that: It also includes a multi-gas sensor (6), which is disposed on the side wall of the grid compartment (7).

3. The apparatus according to claim 2, characterized in that: It also includes a temperature and humidity sensor (5), which is located on the side wall of the grid (7) opposite to the multi-gas sensor (6).

4. The apparatus according to claim 3, characterized in that: The atomizing disc (3a) includes atomizing blades (3b), a water inlet (3c), and an air inlet (3d).

5. The apparatus according to claim 4, characterized in that: The temperature and humidity sensor (5) and the multi-gas sensor (6) are electrically connected to the control box (1).

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