A wastewater environmental purification and treatment device

Abstract

This utility model discloses a wastewater environmental purification and treatment device, including a wastewater collection tank with a sedimentation tank at the bottom. Multiple sets of vertically staggered baffle assemblies are installed within the wastewater collection tank. A filter wall is located on one side of the wastewater collection tank, with filter components installed inside the filter wall's cavity. A flocculation tank is located on the other side of the filter wall, with several mineral filter cartridges at the bottom. A water collection tank is located at the bottom of the filter cartridges. A water pump in the water collection tank lifts water into the separation drum in a drum separator. A clear liquid outlet is located on one side of the bottom of the drum separator, and a rinsing tank is located on one side of the top of the drum separator. The rinsing tank is connected to several nozzles located on the top of the drum separator via pipes. This utility model has a simple structure and low manufacturing and installation costs. It treats domestic and industrial wastewater through sedimentation, filtration, and purification. The resulting purified water can be recycled, and the wastewater, after passing inspection and meeting standards, can be directly discharged, thus saving water resources and meeting environmental protection requirements.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment and purification equipment, specifically a sewage environmental purification and treatment device. Background Technology

[0002] In the field of wastewater treatment, mainstream technologies mainly fall into two categories: biological treatment and natural treatment. After more than a century of practical exploration and experience accumulation, the international community has reached a general consensus that biological treatment technology demonstrates significant advantages in terms of economic efficiency and cost-effectiveness. Therefore, the vast majority of wastewater treatment plants worldwide tend to adopt biological treatment processes as their core treatment method.

[0003] Biological treatment processes are further subdivided into various specific technologies such as traditional activated sludge processes, anaerobic biological treatment processes, and biofilm processes. While traditional activated sludge processes have a long history, they suffer from drawbacks such as high investment costs, expensive operating costs, large footprint, large sludge production volume, and complex processes (often requiring an anaerobic sludge digestion system). Anaerobic biological treatment technology, although effective in degrading some organic matter, has limited degradation efficiency, often failing to meet high effluent quality standards, and requires a large footprint, with challenges in waste gas collection and treatment. Therefore, this technology will not be used alone in this project context. Biofilm processes, with their small footprint, ease of maintenance and operation, energy efficiency, and low sludge production, have become the preferred solution for small-scale domestic wastewater treatment projects. However, when higher effluent quality requirements are needed, an advanced treatment stage is required, leading to increased investment costs.

[0004] Existing wastewater treatment technologies still have many shortcomings in terms of treatment efficiency, cost, and effluent quality stability. Traditional methods, such as the activated sludge process, are widely used, but their high investment and operating costs limit their further promotion. Anaerobic biological treatment technology, due to its limited degradation efficiency and difficulties in waste gas treatment, struggles to meet high-standard effluent requirements. While biofilm methods perform well in small-scale treatment, the need for advanced treatment increases the overall cost. To effectively achieve efficient water resource utilization and pollution control, this application provides an innovative wastewater environmental purification and treatment device. This device integrates multiple processes such as sedimentation, interception, flocculation, filtration, and separation. Through the synergistic effect of core equipment such as candle filters and drum separators, it ensures stable effluent quality that meets standards, with key indicators such as bacteria, suspended solids, and turbidity approaching zero. The treated water can not only be directly reused in industrial production, meeting stringent discharge standards, but also be reused, thereby improving water resource utilization while effectively protecting the physical and mental health of employees. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects and deficiencies of the existing technology and provide a wastewater environmental purification and treatment device, which solves the various problems existing in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wastewater environmental purification and treatment device includes a wastewater collection tank with a sedimentation tank at the bottom. Multiple sets of vertically staggered baffle assemblies are installed inside the wastewater collection tank. A filter wall is provided on one side of the wastewater collection tank, with filter components installed inside the filter wall. A flocculation tank is provided on the other side of the filter wall, with several mineral filter cartridges at the bottom. A water collection tank is located at the bottom of the filter cartridges. A water pump in the water collection tank lifts water into a separation drum in a drum separator. A clear liquid outlet is located on one side of the bottom of the drum separator, and a rinsing tank is located on one side of the top of the drum separator. The rinsing tank is connected to several nozzles located on the top of the drum separator via pipes.

[0008] The sedimentation tank consists of two sets arranged side by side at the bottom of the sewage collection tank, including a sedimentation tank one located on the outer side and a sedimentation tank two located on the inner side. The sedimentation tank one and sedimentation tank two are equipped with pollutant absorption nets made of highly adsorbent material. The bottom ends of the sedimentation tank one and sedimentation tank two are respectively provided with sewage outlets for easy replacement of pollutant absorption nets and sewage discharge.

[0009] The baffle assembly includes four baffles arranged side by side: baffle one, baffle two, baffle three, and baffle four. The bottom end of baffle one is open to the bottom of the sewage collection tank, and baffle two is open to the top of the sewage collection tank. The chambers connected between baffle one and baffle two constitute a primary chamber, and the bottom of the primary chamber is connected to sedimentation tank one. The bottom end of baffle three is open to the bottom of the sewage collection tank, and baffle four is open to the top of the sewage collection tank. The chambers connected between baffle three and baffle four constitute a secondary chamber, and the bottom of the secondary chamber is connected to sedimentation tank two.

[0010] The filter wall is provided with multiple spaced filter chambers, each of which is equipped with a filter assembly consisting of a frame made of a front coarse filter screen and a rear fine filter screen, and the frame is filled with filter cotton made of polyester and glass fiber.

[0011] The mineral filter element includes several mineral filter elements, which are arranged vertically in a candle shape. Each filter element is fitted with a six-lobed plum blossom-shaped PVC tube sleeve, and the outside of the tube sleeve is wrapped with polyester filter cloth.

[0012] The bottom of the flocculation tank is equipped with multiple parallel mineral composite filter elements. Each filter element is horizontally fixed by a stainless steel bracket. Each filter element is surrounded by a six-petal plum blossom-shaped ABS elastic sleeve, and the outer surface of the sleeve is covered with nylon filter cloth.

[0013] The drum separator is equipped with a rotating separation drum. A separation motor is located on the other side of the top of the drum separation layer. The separation motor drives the large gear at the front end of the separation drum to rotate through a small gear, so that the pollutants are concentrated on the drum and the clear water is separated and discharged through the clear liquid outlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This utility model has a simple structure and low manufacturing and installation costs. It treats domestic and industrial sewage through sedimentation, filtration and purification. The resulting clean water can be recycled for a second time. The sewage is discharged directly after passing the test, which saves water resources and meets the requirements of environmental protection.

[0016] (2) The effluent quality is excellent and stable, and the process is simple. Due to the efficient separation effect, there is no need to set up separate solid-liquid separation tanks such as sedimentation and filtration. The system has strong shock resistance and a wide range of applications.

[0017] (3) Small footprint. The biomass in the treatment unit can be maintained at a high concentration, which greatly increases the volumetric load. At the same time, the high efficiency of the rotary separation greatly shortens the hydraulic retention time of the treatment unit.

[0018] (4) The amount of sludge discharged is small, only 30% of that of traditional processes, and the cost of sludge treatment is low.

[0019] (5) The candle filter combined with the drum separator can enrich harmful substances such as bacteria and viruses, which can significantly save the long-term operating costs of chemical disinfection and expand the scope of wastewater reuse. Attached Figure Description

[0020] Figure 1 This is a front sectional view of the present invention;

[0021] Figure 2 This is the front view of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 for Figure 2 Enlarged view of the local structure at point A;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of a mineral filter cartridge.

[0025] Figure label:

[0026] 1. Wastewater collection tank; 2. Sedimentation tank; 3. Filter wall; 4. Filter cotton; 5. Flocculation tank; 6. Mineral filter element; 61. Pipe sleeve; 62. Nylon filter cloth; 7. Water collection tank; 8. Drum separator; 9. Clear liquid outlet; 10. Washing tank; 11. Nozzle; 12. Separation motor; 13. Small gear; 14. Separation drum; 15. Large gear; 16. Filter chamber; 17. Baffle assembly; 171. Baffle one; 172. Baffle two; 173. Baffle three; 174. Baffle four; 19. Front coarse filter screen; 20. Rear fine filter screen; 21. Sedimentation tank one; 22. Sedimentation tank two. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] See appendix Figure 1-5 ;

[0029] A wastewater environmental purification and treatment device includes a wastewater collection tank 1, a sedimentation tank 2 at the bottom of the wastewater collection tank 1, multiple sets of vertically staggered baffle assemblies 17 installed inside the wastewater collection tank 1, a filter wall 3 on one side of the wastewater collection tank 1 with filter components inside the filter wall 3, a flocculation tank 5 on the other side of the filter wall, a mineral filter element 6 at the bottom of the flocculation tank, a water collection tank 7 at the bottom of the filter element, a water pump in the water collection tank to lift water into the separation drum 14 in the drum separator 8, a clear liquid outlet 9 on one side of the bottom of the drum separator 8, and a rinsing tank 10 on one side of the top of the drum separator layer. The rinsing tank is connected to several nozzles 11 on the top of the drum separator 8 through pipes, which can degrade or adsorb carbon, ammonia nitrogen, and phosphorus organic pollutants in the water by microorganisms, nitrifying bacteria, and phosphorus bacteria in the separation drum 14, thereby achieving the purpose of purifying the water quality. This device integrates multiple processes such as sedimentation, interception, flocculation, filtration, and separation. Through the synergistic effect of core equipment such as candle filters and drum separators, it ensures that the effluent water quality is consistently up to standard, with key indicators such as bacteria, suspended solids, and turbidity approaching zero. The treated water can not only be directly reused in industrial production and meet strict emission standards, but can also be reused, thereby improving water resource utilization while effectively protecting the physical and mental health of employees.

[0030] Furthermore, the sedimentation tank 2 consists of two sets arranged side by side at the bottom of the sewage collection tank 1, including sedimentation tank 1 21 located on the outer side and sedimentation tank 22 located on the inner side. The sedimentation tank 1 21 and sedimentation tank 22 are equipped with pollutant absorption nets made of highly adsorbent material. The bottom ends of sedimentation tank 1 21 and sedimentation tank 22 are respectively provided with sewage outlets for easy replacement of pollutant absorption nets and sewage discharge. The baffle assembly 17 includes baffle 1 171, baffle 2 172, baffle 3 173 and baffle 4 174 arranged in parallel. The bottom end of baffle 1 171 is open between the bottom of the sewage collection tank 1 and the bottom of the sewage collection tank 1. The top of baffle 2 172 is open between the top of the sewage collection tank 1. The chambers connected between baffle 1 171 and baffle 2 172 constitute a primary chamber. The bottom of the primary chamber is connected to the sedimentation tank 21. The bottom end of baffle 3 173 is open between the bottom of the sewage collection tank 1 and the bottom of baffle 4 174 is open between the top of the sewage collection tank 1. The chambers connected between baffle 3 173 and baffle 4 174 constitute a secondary chamber. The bottom of the secondary chamber is connected to the sedimentation tank 22.

[0031] In the aforementioned structure, the carefully designed staggered arrangement of baffle components within the wastewater collection tank allows the wastewater to form multi-stage, meandering paths during its flow. This design significantly extends the residence time of the wastewater within the tank, providing ample conditions for sedimentation and natural filtration of suspended particles. Specifically, this structure causes the wastewater to continuously change direction and slow its flow rate, allowing larger particles to gradually settle to the bottom of the tank under gravity, while lighter impurities may pass through the gaps between the baffles or be trapped by subsequent filter layers, thus achieving preliminary solid-liquid separation.

[0032] Meanwhile, the parallel arrangement of sedimentation tank 1 (21) and sedimentation tank 2 (22) not only guides the flow of wastewater and optimizes water distribution, but more importantly, ensures that the sludge that has undergone preliminary sedimentation in the primary and secondary chambers can be effectively collected and centrally treated. Sedimentation tank 1 (21) is mainly responsible for receiving and further sedimenting the wastewater after primary treatment, while sedimentation tank 2 (22) further sediments the wastewater after primary sedimentation to remove finer suspended solids and improve effluent quality. This staged sedimentation design not only improves sedimentation efficiency but also facilitates subsequent cleaning, dewatering, and resource utilization of the sediment, greatly simplifying the wastewater treatment process and reducing treatment costs.

[0033] Furthermore, the filter wall 3 is provided with multiple spaced filter chambers 16, each of which is equipped with a filter assembly consisting of a front coarse filter screen 19 and a rear fine filter screen 20, and the frame is filled with filter cotton 4 made of polyester and glass fiber.

[0034] The filter wall 3 is meticulously designed with multiple filter chambers 16 arranged at specific intervals. These chambers not only optimize the water flow path but also greatly improve the efficiency and effectiveness of wastewater treatment. Each filter chamber 16 is cleverly fitted with a filter assembly composed of a specific structure. The core framework of this assembly consists of a front coarse filter screen 19 and a rear fine filter screen 20, forming a gradient filtration structure from coarse to fine. The front coarse filter screen 19, as the first line of defense, can quickly intercept and retain larger particles and some micro-floating matter in the wastewater, effectively reducing the burden on subsequent filter layers. The rear fine filter screen 20 further refines the filtration precision, ensuring that only extremely fine suspended matter can penetrate, creating cleaner water conditions for subsequent treatment. The framework is tightly filled with filter cotton 4 made of a high-performance material—a blend of polyester and glass fiber. Polyester fibers, with their excellent abrasion resistance and chemical stability, effectively extend the service life of the filter cotton; while glass fiber, with its high specific surface area and good adsorption properties, significantly enhances the filter cotton's ability to capture fine particles. The combination of the two not only improves the overall filtration efficiency of the filter cotton, but also enhances its resistance to pressure and deformation, ensuring stable performance during long-term operation.

[0035] Through the synergistic effect of this multi-stage filtration and high-efficiency filling material, the filter wall 3 can efficiently intercept and remove various micro-floating objects in wastewater, including but not limited to suspended particles, organic debris, and some colloidal substances, effectively improving water quality and providing a reliable guarantee for subsequent advanced treatment or reuse. At the same time, its porous structure design promotes uniform water flow distribution, reduces the risk of localized clogging, and ensures the long-term stable operation of the filtration system.

[0036] Furthermore, the bottom of the flocculation tank 5 is equipped with multiple parallel mineral filter cartridges 6. Each filter cartridge is horizontally fixed by a stainless steel bracket. Each filter cartridge is surrounded by a six-petaled plum blossom-shaped ABS elastic sleeve 61, and the outer surface of the sleeve 61 is covered with nylon filter cloth 62. An outlet filter screen is installed at the water outlet at the bottom of the flocculation tank 5. This reduces the impact load of water flow on the system and ensures that no dirt accumulates in the collection tank 7 at the bottom. Through the multiple parallel and evenly arranged mineral filter cartridges 6 carefully installed at the bottom of the flocculation tank 5, these filter cartridges, as the core treatment unit, are firmly fixed horizontally by a sturdy stainless steel bracket, ensuring their stability and durability under water flow impact. The cleverly designed six-petaled plum blossom-shaped ABS elastic sleeve 61 around the outer periphery of each filter cartridge is not only aesthetically pleasing, but more importantly, its plum blossom structure can effectively disperse water flow pressure, reduce wear and damage caused by direct water flow impact on the filter cartridge, and extend the service life of the filter cartridge. The outer surface of the ABS elastic sleeve 61 is also carefully covered with a layer of nylon filter cloth 62. This filter cloth, with its excellent filtration performance and wear resistance, serves as a second line of defense, effectively intercepting and removing tiny particles and flocculent debris that may be carried in the water flow, preventing them from entering subsequent treatment stages and affecting water quality. The fine pore structure of the nylon filter cloth 62 ensures both smooth water flow and efficient retention of impurities, demonstrating a sophisticated balance in its design.

[0037] The combined structure described above, through the synergistic effect of the mineral filter element 6, the ABS elastic sleeve 61, and the nylon filter cloth 62, forms a multi-layered filtration and buffering system. This effectively reduces the impact load of water flow fluctuations on subsequent treatment systems, ensuring the stable operation of the entire water treatment process. Simultaneously, this design cleverly utilizes the interaction between water flow dynamics and the filter element structure to promote the natural suspension and flow of contaminants within the flocculation tank 5, preventing sedimentation at the bottom of the collection tank 7. This ensures the cleanliness and efficient operation of the collection tank 7, laying a solid foundation for subsequent water purification treatment.

[0038] Furthermore, the drum separator 8 is equipped with a rotating separation drum 14. A separation motor 12 is located on the other side of the top of the drum separation layer. The separation motor drives the large gear 15 at the front end of the separation drum 14 to rotate via a small gear 13, concentrating pollutants on the drum and separating the clean water, which is then discharged through the clear liquid outlet 9. The separation motor 12 drives the separation drum to rotate, cleverly achieving effective separation of pollutants and clean water. During operation, the separation drum 14, with its unique surface structure and physical properties, can efficiently adsorb and concentrate various pollutants in the wastewater, including but not limited to suspended particles, organic debris, and some colloidal substances. These pollutants are gradually collected and adhere to its surface under the rotation of the drum. Simultaneously, clean water is precisely separated through the gaps in the separation drum 14 or a specially designed drainage channel and smoothly discharged through the clear liquid outlet 9, achieving preliminary water purification. This design not only significantly improves wastewater treatment efficiency and reduces the burden on subsequent treatment stages but also ensures the stability and compliance of the effluent quality.

[0039] Therefore, the separation drum 14 in the drum separator 8 provides an efficient and reliable pretreatment method for the sewage treatment system through its dual function of rotation enrichment and clear water separation, and is a key link to ensure the smooth operation of the entire water treatment process.

[0040] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0041] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A wastewater environmental purification and treatment device, comprising a wastewater collection tank (1), characterized in that: The bottom of the sewage collection tank (1) is provided with a sedimentation tank (2). The sewage collection tank (1) is provided with multiple sets of vertically staggered baffle assemblies (17). A filter wall (3) is provided on one side of the sewage collection tank (1). A filter assembly is provided in the inner cavity of the filter wall (3). A flocculation tank (5) is provided on the other side of the filter wall. A mineral filter element (6) is provided at the bottom of the flocculation tank. A water collection tank (7) is provided at the bottom of the filter element. A water pump in the water collection tank lifts water into the separation drum (14) in the drum separation tank (8). A clear liquid outlet (9) is provided on one side of the bottom of the drum separation tank (8). A rinsing tank (10) is provided on one side of the top of the drum separation layer. The rinsing tank is connected to several nozzles (11) provided on the top of the drum separation tank (8) through a pipe.

2. The wastewater environmental purification and treatment device according to claim 1, characterized in that: The sedimentation tank (2) consists of two sets arranged side by side at the bottom of the sewage collection tank (1), including sedimentation tank one (21) located on the outer side and sedimentation tank two (22) located on the inner side. The sedimentation tank one (21) and sedimentation tank two (22) are equipped with pollutant absorption nets made of highly adsorbent material. The bottom ends of sedimentation tank one (21) and sedimentation tank two (22) are respectively provided with sewage outlets for easy replacement of pollutant absorption nets and sewage discharge.

3. The wastewater environmental purification and treatment device according to claim 2, characterized in that: The partition assembly (17) includes a partition 1 (171), a partition 2 (172), a partition 3 (173), and a partition 4 (174) arranged in parallel. The bottom end of the partition 1 (171) is open to the bottom of the sewage collection tank (1), and the top of the sewage collection tank (1) is open. The chambers connected between the partition 1 (171) and the partition 2 (172) constitute a primary chamber. The bottom of the primary chamber is connected to the sedimentation tank 1 (21). The bottom end of the partition 3 (173) is open to the bottom of the sewage collection tank (1), and the top of the sewage collection tank (1) is open. The chambers connected between the partition 3 (173) and the partition 4 (174) constitute a secondary chamber. The bottom of the secondary chamber is connected to the sedimentation tank 2 (22).

4. The wastewater environmental purification and treatment device according to claim 1, characterized in that: The filter wall (3) is provided with multiple spaced filter chambers (16), and each filter chamber (16) is fitted with a filter assembly consisting of a frame made of a front coarse filter screen (19) and a rear fine filter screen (20), and the frame is filled with filter cotton (4) made of polyester and glass fiber.

5. The wastewater environmental purification and treatment device according to claim 1, characterized in that: The bottom of the flocculation tank (5) is provided with multiple parallel mineral filter elements (6). Each filter element is horizontally fixed by a stainless steel bracket. Each filter element is surrounded by a six-petal plum blossom-shaped ABS elastic sleeve (61). The outer surface of the sleeve (61) is covered with nylon filter cloth (62).

6. The wastewater environmental purification and treatment device according to claim 1, characterized in that: The drum separator (8) is equipped with a rotating separation drum (14). A separation motor (12) is provided on the other side of the top of the drum separation layer. The separation motor drives the large gear (15) at the front end of the separation drum (14) to rotate through the small gear (13), so that the pollutants are concentrated on the drum and the clear water is separated and discharged through the clear liquid outlet (9).

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