Integrated treatment device for purifying black and odorous water body
By integrating coagulation, aerobic biological treatment, and electrocatalytic disinfection into a single treatment device, the problem of achieving water quality standards in black and odorous water bodies has been solved, achieving efficient and stable wastewater purification and making it suitable for the rapid treatment of black and odorous water bodies.
Patent Information
- Application Number
- CN202422955501.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Conventional ecological treatment methods such as floating islands, aeration, and biofilms are difficult to achieve ideal improvement effects in black and odorous water bodies, making it difficult to meet water quality standards. This is especially true for river treatment where interception and sewage collection cannot be completed in the short term, as the treatment efficiency is low, the cost is high, and it is difficult to achieve rapid compliance.
An integrated treatment device is adopted, including a coagulation unit, an aerobic unit, and a disinfection unit. Through staged treatment of coagulation pretreatment, aerobic biological treatment, and electrocatalytic disinfection, combined with multi-stage physical and biological treatment, efficient purification of wastewater is achieved.
It significantly improves wastewater treatment efficiency, achieves automated operation and high stability, reduces operating costs, has a high degree of integration, is suitable for point source pollution, has excellent treatment effect, and is suitable for black and odorous wastewater with high color and high content of insoluble substances, achieving compliant discharge.
Smart Images
Figure CN223892564U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of black and odorous water treatment technology, and in particular to an integrated treatment device for purifying black and odorous water. Background Technology
[0002] Black and odorous water bodies represent a serious form of water pollution. Organic pollution leads to oxygen depletion in the water, producing odorous substances such as hydrogen sulfide and ammonia, causing the water to turn black and smelly, rendering it unusable and impacting the environment and human health. In recent years, the problem of black and odorous water bodies in cities has attracted widespread public attention and become a pressing water environment challenge, especially in rapidly developing southern cities. Treating black and odorous water bodies is a highly systematic and far-reaching undertaking, crucial for improving the city's image and living environment.
[0003] Due to the complex sources of pollution and poor ecological conditions in rivers, conventional ecological treatment methods (such as floating islands, aeration, and biofilms) are often ineffective in improving the water quality of black and odorous water bodies, especially in the absence of interception and collection of sewage into sewer systems. For rivers where interception and collection cannot be completed in the short term, the numerous and dispersed pollution discharge points present a significant challenge in achieving rapid water quality compliance. This type of treatment urgently requires highly mobile, efficient, and cost-effective equipment to enable rapid compliance at monitoring sections of polluted rivers. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose an integrated treatment device for the purification of black and odorous water bodies, so as to solve the problem that conventional ecological treatment methods (such as floating islands, aeration, biofilm, etc.) are difficult to achieve ideal improvement effects in black and odorous water bodies and the water quality is difficult to meet standards.
[0005] Based on the above objectives, this utility model provides an integrated treatment device for purifying black and odorous water bodies, including a coagulation unit, an aerobic unit, and a disinfection unit, wherein the aerobic unit is located between the coagulation unit and the disinfection unit.
[0006] The coagulation unit includes a coagulation tank, a feeding component is provided on the side of the coagulation tank, and a stirring component and a screen are provided inside the coagulation tank. A first sewage collection component is provided on the top of the coagulation tank adjacent to the aerobic unit. The first sewage collection component is used to transport the sewage filtered by the screen to the aerobic unit.
[0007] The aerobic unit includes an aerobic tank located between the coagulation tank and the disinfection unit. The aerobic tank contains, from top to bottom, an aerobic biofilm carrier packing and an aeration device. A placement box is located between the aerobic tank and the disinfection unit. A second wastewater collection component is located on the top of the placement box. The second wastewater collection component is used to transport the wastewater treated by the aerobic biofilm carrier packing to the disinfection unit.
[0008] The disinfection unit includes a disinfection box located on the side of the placement box. Inside the disinfection box, an electrocatalytic component and an activated carbon filter component are arranged sequentially from top to bottom. The side of the disinfection box also has a discharge port.
[0009] Preferably, the feeding component includes a water inlet pipe installed on the side of the coagulation tank, and a first sewage pump is installed on the water inlet pipe.
[0010] Preferably, the stirring component includes a stirring blade rotatably connected inside the coagulation tank, and a stirring motor for driving the stirring blade to rotate is installed on the top of the coagulation tank.
[0011] Preferably, the first sewage collection component includes a first sewage collection pipe, one end of which extends into the coagulation tank and the other end of which extends into the aerobic tank, and a second sewage pump is installed on the first sewage collection pipe.
[0012] Preferably, the aerobic biofilm carrier packing material is DHPEK3 packing material, used for culturing aerobic biofilms, with a surface area of 0.01 m². 2 Its specific surface area is 5.34 m². 2 / m 3 .
[0013] Preferably, the second sewage collection component includes a second sewage collection pipe disposed in the placement box, one end of the second sewage collection pipe extending into the bottom of the aerobic box, the other end of the second sewage collection pipe extending into the disinfection box, and a third sewage pump installed on the second sewage collection pipe.
[0014] Preferably, the electrocatalytic component includes an anode electrode rod and a cathode electrode rod disposed in a sterilization chamber, and also includes a power source connected to the anode electrode rod and the cathode electrode rod.
[0015] Preferably, the anode electrode rod is made of platinum metal immobilized on the surface of a titanium substrate, and the cathode electrode rod is graphite, copper, zinc, nickel, or copper-zinc alloy, and the electrocatalytic treatment time is 0.5-2 hours.
[0016] Preferably, the activated carbon filter component includes a mesh screen disposed at the bottom of the disinfection chamber, and activated carbon filler is disposed below the mesh screen.
[0017] The beneficial effects of this utility model: This utility model provides an integrated treatment device for purifying black and odorous water bodies. Through staged treatment of coagulation pretreatment, aerobic biological treatment, and electrocatalytic disinfection, it enables black and odorous wastewater to meet discharge standards. Compared with existing technologies, this utility model organically combines multi-stage physical treatment, biological treatment, and electrochemical treatment, significantly improving the wastewater treatment effect. It also has the advantages of automated operation, stable treatment effect, and strong shock resistance. In addition, it does not require additional disinfection agents, has a small footprint, excellent treatment effect, and stable operation. It has the advantages of high integration, suitability for point source pollution, and long service life, and can achieve compliant discharge. It is particularly suitable for treating black and odorous wastewater with high color and high content of insoluble substances. 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 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 structural schematic diagram of an embodiment of the present utility model.
[0020] In the diagram: 1. Coagulation unit; 11. Inlet pipe; 12. First sewage pump; 13. Agitator motor; 14. Agitator blades; 15. Bar screen; 16. First sewage collection pipe; 17. Second sewage pump; 2. Aerobic unit; 21. Aerobic biofilm carrier packing; 22. Aeration equipment; 23. Second sewage collection pipe; 24. Third sewage pump; 3. Disinfection unit; 31. Power supply; 32. Anode electrode rod; 33. Cathode electrode rod; 34. Separator; 35. Activated carbon packing; 36. Outlet. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0023] like Figure 1 As shown, an integrated treatment device for purifying black and odorous water bodies includes a coagulation unit 1, an aerobic unit 2, and a disinfection unit 3, with the aerobic unit 2 located between the coagulation unit 1 and the disinfection unit 3.
[0024] The coagulation unit 1 includes a coagulation box, a feeding component is provided on the side of the coagulation box, and a stirring component and a grid 15 are provided inside the coagulation box. A first sewage collection component is provided on the top of the coagulation box adjacent to the aerobic unit 2. The first sewage collection component is used to transport the sewage filtered by the grid 15 into the aerobic unit 2.
[0025] The aerobic unit 2 includes an aerobic tank located between the coagulation tank and the disinfection unit 3. The aerobic tank contains an aerobic biofilm carrier packing 21 and an aeration device 22 arranged sequentially from top to bottom. A placement box is provided between the aerobic tank and the disinfection unit 3, and a second sewage collection component is provided on the top of the placement box. The second sewage collection component is used to transport the sewage treated by the aerobic biofilm carrier packing 21 to the disinfection unit 3.
[0026] The disinfection unit 3 includes a disinfection box located on the side of the placement box. Inside the disinfection box, from top to bottom, there are an electrocatalytic component and an activated carbon filter component. The side of the disinfection box also has an outlet 36.
[0027] Coagulation unit 1 is used to initially remove large-volume impurities and ensure uniform coagulation of the wastewater. Aerobic unit 2 decomposes organic matter in the wastewater through biological treatment. Disinfection unit 3 performs electrocatalytic disinfection and deep filtration. In summary, through staged treatment of coagulation pretreatment, aerobic biological treatment, and electrocatalytic disinfection, black and odorous wastewater can meet discharge standards.
[0028] In a preferred embodiment of the present invention, the feeding component includes a water inlet pipe 11 installed on the side of the coagulation tank, a first sewage pump 12 installed on the water inlet pipe 11, one end of the water inlet pipe 11 extending into the coagulation tank, the other end extending into the sewage to be treated, and an inlet valve is provided.
[0029] In another preferred embodiment of the present invention, the stirring component includes a stirring blade 14 rotatably connected in the coagulation tank. A stirring motor 13 for driving the stirring blade 14 to rotate is installed on the top of the coagulation tank. The wastewater is uniformly mixed by the stirring blade 14 and then filtered by the screen 15 to remove large volume impurities.
[0030] In another preferred embodiment of the present invention, the first sewage collection component includes a first sewage collection pipe 16, one end of which extends into the coagulation tank and the other end of which extends into the aerobic tank, and a second sewage pump 17 is installed on the first sewage collection pipe 16.
[0031] It should be noted that the aerobic biofilm carrier packing material 21 is used for culturing aerobic biofilms, employing DHPEK3 packing material with a surface area of 0.01 m². 2 Its specific surface area is 5.34 m². 2 / m 3 .
[0032] It should be noted that the aeration device 22 provides the oxygen required for the growth of aerobic biofilm and homogenizes the wastewater. The aeration rate is between 0.15-0.2 L / min. The aeration device 22 can be a blower aeration device.
[0033] It should be noted that the second sewage collection component includes a second sewage collection pipe 23 installed inside the placement box. One end of the second sewage collection pipe 23 extends into the bottom of the aerobic box, and the other end of the second sewage collection pipe 23 extends into the disinfection box. A third sewage pump 24 is installed on the second sewage collection pipe 23.
[0034] It should be noted that the electrocatalytic component includes an anode electrode rod 32 and a cathode electrode rod 33 installed in the sterilization chamber, as well as a power supply 31 connected to the anode electrode rod 32 and the cathode electrode rod 33. The anode electrode rod 32 is made of platinum metal immobilized on the surface of a titanium substrate, and the cathode electrode rod 33 is graphite. The electrocatalytic treatment time is 0.5-2 hours.
[0035] It should be noted that the activated carbon filter component includes a partition 34 located at the bottom of the disinfection tank, and an activated carbon packing 35 located below the partition for adsorbing and filtering pollutants such as heavy metals and antibiotics. The outlet 36 is connected to one side of the activated carbon packing 35 for discharging treated wastewater that meets the standards.
[0036] The following two examples use black and odorous water bodies from rivers A and B as examples. The characteristic indicators of the wastewater to be treated are shown in the table below.
[0037] Feature indicators River A River B Chemical oxygen demand (COD) 100-300 mg / L 200-500 mg / L <![CDATA[Ammonia nitrogen (NH4 + -N)]]> 20-50 mg / L 40-80 mg / L Total phosphorus (TP) 3.5-5 mg / L 5-7.5 mg / L Dissolved oxygen (DO) 0.5 mg / L 0.2 mg / L Total coliforms <![CDATA[1.25×10 5 CFU / L]]> <![CDATA[1.5×10 5 CFU / L]]>
[0038] Example 1:
[0039] This integrated treatment unit for purifying polluted water bodies treats polluted wastewater from River A. The operating parameters of the aerobic unit include: sludge loading of the aerobic biofilm packing material is 0.2 - 0.6 kg COD / m³. 2 • d, aeration rate 0.15-0.2 L / min, hydraulic retention time 4-7 h, dissolved oxygen maintained at 2-5 mg / L; mixed liquor suspended solids concentration 1500-2000 mg / L. Disinfection unit parameters: current density 30-50 mA / cm². 2 The voltage is 5 V, and the treatment time is 0.5-1 h. The final effluent COD ≤ 10 mg / L, NH4+-N ≤ 5 mg / L, TP ≤ 1 mg / L, and Escherichia coli ≤ 10 mg / L. 2 CFU / L, effluent meets discharge standards.
[0040] Example 2:
[0041] This integrated treatment unit for purifying polluted water bodies treats polluted wastewater from River B. The operating parameters of the aerobic unit include: sludge loading of the aerobic biofilm packing material is 0.2 - 0.6 kg COD / m³. 2 • d, aeration rate 0.15-0.2 L / min, hydraulic retention time 4-7 h, dissolved oxygen maintained at 2-5 mg / L; mixed liquor suspended solids concentration 1500-2000 mg / L. Disinfection unit parameters: current density 30-50 mA / cm². 2 The voltage is 5 V, and the treatment time is 0.5-1 h. The final effluent COD ≤ 20 mg / L, NH4+-N ≤ 8 mg / L, TP ≤ 1 mg / L, and Escherichia coli ≤ 10 mg / L. 2 CFU / L, effluent meets discharge standards.
[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0043] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An integrated treatment device for purifying black and odorous water bodies, characterized in that, It includes a coagulation unit (1), an aerobic unit (2) and a disinfection unit (3), with the aerobic unit (2) located between the coagulation unit (1) and the disinfection unit (3); The coagulation unit (1) includes a coagulation box, a feeding component is provided on the side of the coagulation box, and a stirring component and a grid (15) are provided inside the coagulation box. A first sewage collection component is provided on the top of the coagulation box and the aerobic unit (2), and the first sewage collection component is used to transport the sewage filtered by the grid (15) to the aerobic unit (2). The aerobic unit (2) includes an aerobic tank located between the coagulation tank and the disinfection unit (3). The aerobic tank is provided with an aerobic biofilm carrier packing (21) and an aeration device (22) arranged from top to bottom. A placement box is provided between the aerobic tank and the disinfection unit (3). A second sewage collection component is provided on the top of the placement box. The second sewage collection component is used to transport the sewage treated by the aerobic biofilm carrier packing (21) to the disinfection unit (3). The disinfection unit (3) includes a disinfection box located on the side of the placement box. The disinfection box contains an electrocatalytic component and an activated carbon filter component arranged from top to bottom. An outlet (36) is also provided on the side of the disinfection box.
2. The integrated treatment device for purifying black and odorous water bodies according to claim 1, characterized in that, The feeding component includes a water inlet pipe (11) installed on the side of the coagulation tank, and a first sewage pump (12) is installed on the water inlet pipe (11).
3. The integrated treatment device for purifying black and odorous water bodies according to claim 1, characterized in that, The stirring component includes a stirring blade (14) rotatably connected inside the coagulation tank, and a stirring motor (13) for driving the stirring blade (14) to rotate is installed on the top of the coagulation tank.
4. The integrated treatment device for purifying black and odorous water bodies according to claim 1, characterized in that, The first sewage collection component includes a first sewage collection pipe (16), one end of which extends into the coagulation tank and the other end of which extends into the aerobic tank. A second sewage pump (17) is installed on the first sewage collection pipe (16).
5. An integrated treatment device for purifying black and odorous water bodies according to claim 1, characterized in that, The second sewage collection component includes a second sewage collection pipe (23) installed in the placement box. One end of the second sewage collection pipe (23) extends into the bottom of the aerobic box, and the other end of the second sewage collection pipe (23) extends into the disinfection box. A third sewage pump (24) is installed on the second sewage collection pipe (23).
6. An integrated treatment device for purifying black and odorous water bodies according to claim 1, characterized in that, The electrocatalytic component includes an anode electrode rod (32) and a cathode electrode rod (33) disposed in a sterilization chamber, and also includes a power supply (31) connected to the anode electrode rod (32) and the cathode electrode rod (33).
7. An integrated treatment device for purifying black and odorous water bodies according to claim 1, characterized in that, The activated carbon filter component includes a mesh (34) disposed at the bottom of the disinfection box, and activated carbon filler (35) disposed below the mesh (34).