A novel biological deodorization and purification device

Abstract

This invention discloses a novel biological deodorization and purification device, comprising a shell, a pretreatment section, a biological purification section, an induced draft fan, a collection duct, and a delivery duct. The pretreatment section includes three parallel chambers, each containing a spray system with a pump and piping. The biological purification section includes an exhaust gas duct, a biologically active packing layer, a temperature and humidity sensor, a carbon source inlet, a spray system, and an exhaust gas outlet. The pretreatment and biological purification sections efficiently remove inorganic and organic components from high-concentration, irritating, and harmful gases generated in the livestock and poultry farming industry, achieving compliant emissions after deodorization. In use, this invention simplifies large-scale biological deodorization and purification equipment combined with a scrubbing system, solving the problems of excessive floor space and cumbersome installation of the original system, and achieving the removal of complex malodorous gas components.

Description

Technical Field

[0001] This invention relates to the field of environmental remediation technology, and in particular to a device system for removing irritating and harmful gases generated during the livestock and poultry breeding process and the fermentation of livestock and poultry waste. Background Technology

[0002] As the domestic livestock and poultry farming industry develops towards intensification and large-scale operations, the scale of livestock and poultry farming is constantly increasing, and the distribution of farming facilities is becoming more concentrated. This has led to the problem of large-scale and concentrated emissions of irritating and harmful gases produced by the livestock and poultry farming industry. If these harmful gases are not treated in a timely and effective manner, they will not only affect the healthy growth of livestock and poultry, but also have adverse effects on the health and normal life of farm workers and surrounding residents. Therefore, timely and effective treatment of irritating and harmful gases is the key to ensuring the healthy development of the livestock and poultry farming industry and the health of the people.

[0003] The main sources of irritating and harmful gases in the livestock and poultry farming industry include those generated during the livestock and poultry farming process and the malodorous gases produced during the fermentation and treatment of livestock and poultry manure. The diversity of these sources makes their composition quite complex. The inorganic odor components of the exhaust gases mainly include sulfur-containing substances, represented by hydrogen sulfide (H2S), and nitrogen-containing substances, represented by ammonia (NH3). In addition, there are more complex organic odor components (VOCs).

[0004] Currently, biological treatment methods are the primary means of treating irritating and harmful gases in the livestock and poultry farming industry. These methods utilize the physiological metabolism of microorganisms to transform odorous substances, effectively decomposing and removing target pollutants to purify and control odorous gases. Biological deodorization is widely used due to its simple operation and management, low operating costs, and high efficiency in treating organic odorous gases. However, existing biological deodorization purification equipment generally suffers from low efficiency in treating inorganic odor components in irritating and harmful gases. When the exhaust gas concentration is high, biological deodorization purification systems typically need to be combined with a scrubbing system for removing inorganic odor components at the front end to achieve maximum treatment efficiency for both organic and inorganic odor components in the exhaust gas. However, systems that combine these two functions usually have a large footprint and complex installation, significantly increasing the difficulty and cost of practical application and severely hindering its further application and promotion. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of existing biological deodorization and purification devices and to provide a modular biological filtration and deodorization device. In the pretreatment stage of the device, inorganic components in high-concentration irritating and harmful gases are specifically treated. This solves the problems that existing biological deodorization devices generally have low efficiency in treating inorganic components in high-concentration waste gas from the livestock and poultry farming industry. However, the combined system of biological deodorization and rinsing has problems such as excessive footprint and complicated installation.

[0006] To achieve the above objectives, the present invention provides a novel biological deodorization and purification device, comprising a shell, a pretreatment section, a biological purification section, an exhaust fan, a collection duct, and a delivery duct. The outer shell is divided into a pretreatment section and a biological purification section. Both the pretreatment section and the biological purification section are equipped with a spray system and connected to a water tank. The water tank periodically provides clean tap water and wastewater discharge to the spray system. An induced draft fan is located on the outside of the shell. One end of the induced draft fan is connected to the exhaust gas collection duct, and the other end is connected to the conveying duct. The outlet section of the conveying duct is connected to the gas assembly of the pretreatment section inside the equipment. The pretreatment section is divided into three parallel chambers. The gas sent into the pretreatment section by the induced draft fan passes through an acid spray chamber, an alkaline spray chamber, and a clean water rinsing chamber in sequence. After two stages of spraying and one stage of clean water rinsing pretreatment, the gas is sent to the biological purification section for conventional biological deodorization and purification treatment. The biological deodorization and purification device includes a transmission duct, a biologically active packing layer, a temperature and humidity sensor, a carbon source replenishment port, a spray system, and an exhaust gas discharge port.

[0007] Furthermore, the aforementioned pretreatment section includes an acid spray chamber, an alkaline spray chamber, and a clean water rinsing chamber. Each of the three chambers contains an exhaust gas pipe, a spray pipe, and a water pump. The collected exhaust gas passes through the three chambers in sequence and enters the biological purification section device.

[0008] Furthermore, the temperature and humidity sensor of the aforementioned biological deodorization and purification device is used to determine whether the environment within the biological purification section is suitable for the survival and reproduction of microorganisms in the biologically active packing layer. The spray pipe is used to replenish the water required by the microorganisms in the biologically active packing layer when necessary, and the carbon source replenishment port is used to replenish the nutrients required by the microorganisms in the biologically active packing layer when necessary.

[0009] Furthermore, the aforementioned biological purification section is the final stage for treating irritating and harmful gases. After the treated waste gas from the livestock and poultry farming industry meets the standards, it can be discharged through the exhaust outlet.

[0010] Furthermore, the pretreatment section module and the biological purification section module of the above-mentioned biological deodorization and purification device are combined by bolts and welding. By designing and changing the size of the internal cavity of each module, different sizes of the modular biological deodorization and purification equipment can be obtained to suit industrial scenarios with different exhaust gas volumes and different concentrations of irritating and harmful gases.

[0011] The innovation of the biological deodorization and purification device proposed in this invention lies in integrating the large-area-consuming three-stage acid-alkali spray system into the pretreatment section of the original biological deodorization device. The overall equipment structure adopts a fully functional and modular assembly method. On the one hand, the modular design facilitates the production, processing, and installation of the equipment, reducing production and installation costs and minimizing the footprint at the application site. On the other hand, the modular assembly method allows for flexible configuration of the equipment according to different processing capacities, avoiding incomplete odor treatment due to insufficient equipment capacity or waste caused by excessive equipment performance. Attached Figure Description

[0012] The following description, with reference to the accompanying drawings, illustrates the structural details of this biological deodorization and purification device to more clearly explain the technical solution of the present invention.

[0013] Appendix Figure 1 This is a schematic diagram of a biological deodorization and purification device.

[0014] The attached diagram lists the components represented by each number as follows:

[0015] 1. Outer shell; 2. Pretreatment section; 3. Biological purification section; 4. Exhaust fan; 5. Collection duct; 6. Conveying duct; 7. Spray system; 8. Water tank; 9. Transfer duct; 201. Acidic spray chamber; 202. Alkaline spray chamber; 203. Clean water rinsing chamber; 301. Bioactive packing layer; 302. Temperature and humidity sensor; 303. Carbon source addition port; 304. Spray system; 305. Exhaust gas emission port; 701. Water pump; 702. Spray head; 801. Tap water; 802. Sewage discharge.

Claims

1. A biological filter deodorization device, characterized in that, It includes an outer shell (1), a pretreatment section device (2), a biological purification section device (3), an exhaust fan (4), a collection duct (5), and a delivery duct (6). The outer shell (1) is internally divided into pretreatment section (2) and biological purification section (3) modules, which are assembled by bolts and welding. The outer side of the housing (1) is provided with an exhaust fan (4), and the exhaust fan (4) is connected to the exhaust gas collection pipe (5) and the conveying pipe (6) at both ends. The conveying pipe (6) sends the gas into the pretreatment section (2) of the main equipment. The pretreatment section (2) is divided into three parallel chambers, which are acid spray chamber (201), alkaline spray chamber (202) and clean water rinsing chamber (203) in sequence according to the gas entry direction. The three chambers are combined by bolts and welding. The biological purification section (3) includes a transmission duct (9), a biological active packing layer (301), a temperature and humidity sensor (302), a carbon source replenishment port (303), a spray system (304), and a waste gas emission port (305); The biological purification section (3) ensures the normal vital signs of microorganisms and the efficiency of treating pollutants in irritating and harmful gases by controlling temperature, humidity and nutrients.

2. The novel biological deodorization and purification device as described in claim 1, characterized in that, In addition to the biological purification section (3), the device also has a unique pretreatment section (2).

3. The novel biological deodorization and purification device as described in claim 1, characterized in that, The pretreatment section (2) device contains three chambers arranged in parallel. The acid spray chamber (201) is mainly used to remove alkaline inorganic odor components from irritating and harmful gases. The alkaline spray chamber (202) is mainly used to remove acidic inorganic odor components from waste gas. The clean water rinse chamber (203) is mainly used to remove residual inorganic odor components from waste gas and a small amount of salt components carried in the first two spray processes.

4. The novel biological deodorization and purification device as described in claim 1, characterized in that, The biological purification section includes a biologically active packing layer (301), a temperature and humidity sensor (302), a carbon source replenishment port (303), a spray system (304), and an exhaust gas outlet (305). The biologically active packing layer (301) carries active microorganisms, which mainly function to treat organic odor components in the exhaust gas. The temperature and humidity sensor (302) is used to determine whether the cavity environment in the biological purification section is suitable for the growth and reproduction of microorganisms in the biologically active packing layer (301). The carbon source replenishment port (303) is used to replenish the nutrients required by the microorganisms in the biologically active packing layer (301) when necessary. The spray system (304) is used to replenish the water required by the microorganisms in the biologically active packing layer (301) when necessary to maintain their normal vital signs.

5. The novel biological deodorization and purification device as described in claim 1, characterized in that, The spray system (7) of the pretreatment section (2) and the biological purification section (3) is connected to the water tank (8) by a pump (701) and water pipes. The whole system regularly discharges tap water (801) and sewage (802).

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