A biological wastewater treatment device

Abstract

This utility model discloses a biochemical wastewater treatment device, relating to the field of biochemical wastewater treatment devices. The device includes a treatment tank, multiple aeration devices, an activated carbon carrier, multiple biofilm filter plates, and a transition tank. The treatment tank houses activated sludge, biofilm, and immobilized microorganisms, and the multiple aeration devices at the bottom of the tank effectively treat wastewater. Furthermore, the device uses water pressure to filter wastewater from bottom to top, effectively preventing localized filtration overload. Three treatment devices within the tank simultaneously perform nitrification and denitrification, treating the wastewater sequentially to ensure stable effluent quality.

Description

Technical Field

[0001] This utility model relates to the technical field of devices for treating wastewater using biochemical methods, specifically a device for treating wastewater using biochemical methods. Background Technology

[0002] Against the backdrop of rapid urbanization and industrialization in modern times, sewage discharge has surged, highlighting water pollution problems. Biochemical sewage treatment devices rely on the metabolic action of microorganisms to degrade pollutants, and have become the mainstream treatment method due to their low cost, high efficiency, and strong environmental friendliness.

[0003] Existing biochemical wastewater treatment devices utilize microbial metabolism to degrade organic pollutants in wastewater. The core principle is to artificially control environmental conditions to promote microbial growth and reproduction, achieving the biotransformation and separation of pollutants. However, the treated wastewater still contains large amounts of nitrates and nitrites, which can pollute groundwater and exacerbate algal blooms, requiring subsequent treatment. To address the shortcomings of existing technologies, this invention provides a biochemical wastewater treatment device to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a biochemical wastewater treatment device that solves the problem that treated wastewater still contains large amounts of nitrates and nitrites, which pollute groundwater and exacerbate algal blooms, requiring subsequent treatment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for treating wastewater using a biochemical method, comprising:

[0006] The processing box has a partition plate fixedly connected inside, and multiple buffer blocks are fixedly connected to the bottom of the processing box;

[0007] Multiple aeration devices are installed at the bottom of the treatment tank, and the aeration devices are used to fill the treatment tank with air.

[0008] An active material carrier is disposed inside a processing chamber, and the active material carrier is filled with nano-active alumina.

[0009] Multiple sets of biofilm filter plates are fixedly connected inside the treatment chamber;

[0010] The transition box is fixedly connected to the right end of the processing box.

[0011] Preferably, the processing box is fixedly connected with two sets of upper and lower grid plates, and the left end of the processing box is fixedly connected with a water inlet pipe.

[0012] Preferably, a water inlet is provided between the transition box and the treatment box, an air outlet is provided on the transition box, and a water outlet pipe is provided at the right end of the transition box.

[0013] Preferably, a water storage area is provided at the bottom of the processing tank, and a circulation pipe is fixedly connected to the partition plate.

[0014] Preferably, a connector is provided on the outer peripheral wall of the processing box, and the connector is used to fix the processing box.

[0015] Preferably, the biofilm filter plate is provided with an HEC packing system, which is used to enhance microbial attachment and improve treatment efficiency. The biofilm filter plate is filled with ammonifying bacteria, denitrifying bacteria, acid-producing bacteria and methanogenic bacteria.

[0016] Its beneficial effects are as follows:

[0017] This biochemical wastewater treatment device incorporates activated sludge, biofilm, and immobilized microorganisms within its treatment tank, along with multiple aeration units at the bottom of the tank. This allows for effective wastewater treatment. Furthermore, the device utilizes water pressure to filter wastewater from bottom to top, effectively preventing localized filtration overload. Three treatment units within the tank simultaneously perform nitrification and denitrification, treating the wastewater sequentially to ensure stable effluent quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] In the diagram: 1. Treatment tank; 2. Grating plate; 3. Aeration device; 4. Active material carrier; 5. Buffer block; 6. Transition tank; 7. Inlet pipe; 8. Outlet pipe; 9. Divider plate; 10. HEC packing system; 11. Biofilm filter plate; 12. Connector; 13. Air outlet; 14. Circulation pipe; 15. Inlet; 16. Water storage area. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] This utility model discloses a device for treating wastewater using a biochemical method, according to the attached... Figure 1 As shown, it includes:

[0024] The treatment tank 1 has a partition plate 9 fixedly connected inside, and multiple buffer blocks 5 fixedly connected to the bottom. The treatment tank 1 serves as the main container of the entire biological wastewater treatment device, providing space for the installation and operation of other components, accommodating wastewater, and carrying out various reactions during the biological treatment process. The partition plate 9 fixedly connected inside divides the internal space of the treatment tank 1 into different treatment areas, enabling segmented wastewater treatment. The multiple buffer blocks 5 fixedly connected to the bottom act as buffers and shock absorbers, reducing the impact of vibrations generated during device operation on the surrounding environment, and also reducing the risk of damage to the device itself due to vibration.

[0025] Multiple aeration devices 3 are installed at the bottom of the treatment tank 1. The aeration devices 3 are used to fill the treatment tank 1 with air. In the process of biochemical treatment of sewage, many microorganisms need sufficient oxygen for growth and metabolism. By filling the sewage with air, the aeration devices 3 increase the dissolved oxygen content in the sewage, provide a suitable living environment for aerobic microorganisms, promote the decomposition and transformation of organic matter in the sewage by microorganisms, and improve the sewage treatment efficiency.

[0026] The active carrier 4 is set inside the treatment tank 1. The active carrier 4 is filled with nano-activated alumina. Nano-activated alumina has a large specific surface area and good adsorption performance. It can adsorb some pollutants in the sewage, such as heavy metal ions and organic matter. At the same time, it can also provide a place for microorganisms to attach and grow, increase the contact area between microorganisms and sewage, and further enhance the sewage treatment effect.

[0027] Multiple sets of biofilm filter plates 11 are fixedly connected inside the treatment chamber 1. The biofilm filter plates 11 are filled with various microorganisms, including ammonifying bacteria, denitrifying bacteria, acid-producing bacteria, and methanogenic bacteria. These microorganisms form a biofilm on the surface of the biofilm filter plates 11. When wastewater flows through the biofilm filter plates 11, the microorganisms in the biofilm decompose and transform pollutants such as organic matter, nitrogen, and phosphorus in the wastewater, achieving wastewater purification and ensuring compliance with discharge standards.

[0028] The transition box 6 is fixedly connected to the right end of the processing box 1.

[0029] The treatment tank 1 is fixedly connected to two sets of upper and lower grating plates 2. The main function of the grating plates 2 is to perform preliminary filtration of the wastewater entering the treatment tank 1. Larger particles, suspended solids, etc. will be intercepted by the grating plates 2, preventing these substances from entering the subsequent treatment stages and avoiding blockage or damage to components such as the aeration device 3, active material carrier 4, and biofilm filter plate 11, thus ensuring the normal operation and treatment effect of the device. The left end of the treatment tank 1 is fixedly connected to the inlet pipe 7.

[0030] A water inlet 15 is provided between the transition box 6 and the treatment box 1, an air outlet 13 is provided on the transition box 6, and a water outlet pipe 8 is provided at the right end of the transition box 6.

[0031] The bottom of the treatment tank 1 is equipped with a water storage area 16, which provides a stable water source for subsequent treatment processes and also helps to settle and separate sediments in the wastewater, further improving the wastewater treatment effect. A circulation pipe 14 is fixedly connected to the partition plate 9. Through the circulation pipe 14, the wastewater can flow within the treatment tank 1, increasing the contact time and opportunities between the wastewater and microorganisms and treatment materials, improving the removal efficiency of pollutants, and enhancing the overall wastewater treatment effect of the device.

[0032] A connector 12 is provided on the outer peripheral wall of the processing box 1. The connector 12 is used to fix the processing box 1. The processing box 1 can be stably installed in a suitable position through the connector 12 to ensure that the device will not shake or shift during operation, thus ensuring the stability and safety of the device.

[0033] The biofilm filter plate 11 is equipped with an HEC packing system 10, which is used to enhance microbial attachment and improve treatment efficiency. The biofilm filter plate 11 is filled with ammonifying bacteria, denitrifying bacteria, acid-producing bacteria and methanogenic bacteria.

[0034] This biochemical wastewater treatment device integrates biodegradation, adsorption, and physicochemical processes. It has many advantages, such as high volumetric loading, small footprint, stable operation, good effluent quality, convenient management, and low operating costs.

[0035] Working principle: First, the wastewater to be treated is introduced into the treatment tank 1 through the inlet pipe 7. The wastewater first passes through the two sets of lower grid plates 2 for preliminary filtration, intercepting larger particles of impurities and suspended solids before entering the treatment tank 1. The wastewater then flows into the storage area 16. At this time, multiple sets of aeration devices 3 set at the bottom of the treatment tank 1 start working, filling the wastewater with air to increase the dissolved oxygen content. At the same time, the nano-activated alumina in the active material carrier 4 adsorbs some pollutants in the wastewater and provides an attachment site for microorganisms.

[0036] As wastewater flows within the treatment tank 1, it passes through multiple sets of biofilm filter plates 11. The HEC packing system 10 on the biofilm filter plates 11 enhances the attachment of microorganisms. Microorganisms such as ammonia-producing bacteria, denitrifying bacteria, acid-producing bacteria, and methanogenic bacteria in the biofilm decompose and transform pollutants such as organic matter, nitrogen, and phosphorus in the wastewater. The partition plate 9 divides the internal space of the treatment tank 1 into different areas, and the circulation pipe 14 allows the wastewater to flow sequentially between the treatment areas, further improving the treatment effect.

[0037] Wastewater treated by treatment tank 1 enters transition tank 6 through inlet 15. In transition tank 6, the generated nitrogen gas is discharged through outlet 13. Finally, wastewater that meets the discharge standards is discharged from the device through outlet pipe 8, completing the entire wastewater treatment process.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for treating wastewater using a biochemical method, characterized in that, include: The processing box (1) has a partition plate (9) fixedly connected inside, and multiple buffer blocks (5) are fixedly connected to the bottom of the processing box (1). Multiple aeration devices (3) are installed at the bottom of the treatment tank (1), and the aeration devices (3) are used to fill the treatment tank (1) with air; An active material carrier (4) is disposed inside the processing chamber (1), and the active material carrier (4) is filled with nano-active alumina; Multiple sets of biofilm filter plates (11) are fixedly connected inside the treatment box (1); The transition box (6) is fixedly connected to the right end of the processing box (1).

2. The apparatus for treating wastewater using a biochemical method according to claim 1, characterized in that, The processing box (1) is fixedly connected with two sets of upper and lower grid plates (2), and the left end of the processing box (1) is fixedly connected with a water inlet pipe (7).

3. The apparatus for treating wastewater using a biochemical method according to claim 1, characterized in that, A water inlet (15) is provided between the transition box (6) and the treatment box (1), an air outlet (13) is provided on the transition box (6), and a water outlet pipe (8) is provided at the right end of the transition box (6).

4. The apparatus for treating wastewater using a biochemical method according to claim 1, characterized in that, The bottom of the processing box (1) is provided with a water storage area (16), and a circulation pipe (14) is fixedly connected to the partition plate (9).

5. The apparatus for treating wastewater using a biochemical method according to claim 1, characterized in that, A connector (12) is provided on the outer peripheral wall of the processing box (1), and the connector (12) is used to fix the processing box (1).

6. The apparatus for treating wastewater using a biochemical method according to claim 1, characterized in that, The biofilm filter plate (11) is provided with an HEC packing system (10), which is used to enhance microbial attachment and improve treatment efficiency. The biofilm filter plate (11) is filled with ammonifying bacteria, denitrifying bacteria, acid-producing bacteria and methanogenic bacteria.

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