Resource utilization type sewage treatment equipment

Abstract

The resource utilization type sewage treatment equipment comprises a box body internally provided with a containing cavity, the box body is provided with a water inlet and a water outlet, three partition plates are arranged in the containing cavity at intervals, and the containing cavity is divided into a primary sedimentation tank, an anaerobic fermentation tank, a sludge fermentation tank and a reuse water storage tank which are sequentially communicated. According to the utility model, the accommodating cavity is divided into the primary sedimentation tank, the anaerobic fermentation tank, the sludge fermentation tank and the recycled water storage tank which are sequentially communicated through the three partition plates, large-particle impurities in sewage are subjected to hydrolytic acidification and sedimentation in the unit through the primary sedimentation tank, and then microorganism-attachable suspended filler is added through the anaerobic fermentation tank; the acidified and hydrolyzed sewage is deeply fermented and decomposed by anaerobic microorganisms in the area and is further purified. And the sludge fermentation tank is divided into an anaerobic sludge fermentation zone, a three-dimensional filter material microbial reaction zone, a microporous ceramsite adsorption zone and gravel filtration plant absorption from bottom to top, so that the ultimate purification of water quality is achieved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and more specifically, to a resource-utilizing wastewater treatment device. Background Technology

[0002] Wastewater treatment equipment is an industrial device that can effectively treat domestic sewage and industrial wastewater in urban areas, preventing sewage and pollutants from flowing directly into water bodies. It is of great significance for improving the ecological environment, enhancing the city's image, and promoting economic development. Underground wastewater treatment equipment is suitable for domestic sewage and similar industrial organic wastewater from residential communities, hospitals, sanatoriums, office buildings, shopping malls, hotels, restaurants, government agencies, schools, military units, aquatic product processing plants, livestock processing plants, dairy processing plants, etc., such as organic wastewater from textile, brewing, papermaking, leather making, food, and chemical industries. Its main purpose is to treat domestic sewage and similar industrial organic wastewater to meet the requirements for reuse water quality, so that the wastewater can be recycled.

[0003] When using wastewater treatment equipment for environmentally friendly water resource reuse, traditional wastewater treatment equipment generally treats wastewater simply as white pollution, making the wastewater appear cleaner. However, this means that the treated wastewater cannot be recycled, and the utilization effect is poor, reducing the working efficiency of the equipment and the wastewater recycling rate.

[0004] Therefore, it is necessary to propose a resource-utilizing wastewater treatment equipment, which is of great significance to the system's energy consumption and operating efficiency. Utility Model Content

[0005] This utility model provides a resource-utilizing sewage treatment equipment to solve the problem that it is difficult to achieve both aeration volume and sedimentation / separation effect in the existing aeration and grit settling process.

[0006] According to one aspect of this utility model, a resource-utilizing wastewater treatment device is provided, comprising a box with an internal accommodating cavity, the box having an inlet and an outlet, and at least three partitions spaced apart within the accommodating cavity, dividing the accommodating cavity into a primary sedimentation tank, an anaerobic fermentation tank, a sludge fermentation tank, and a reclaimed water storage tank connected in sequence. The anaerobic fermentation tank is filled with suspended packing particles containing biological material. A support is provided at the bottom of the sludge fermentation tank, the support dividing the bottom of the sludge fermentation tank into an anaerobic sludge reaction zone. A three-dimensional PE packing layer, a microporous ceramsite layer, and a gravel layer are provided on the upper part of the support. An outlet pipe connected to the reclaimed water storage tank is provided on the partition corresponding to the gravel layer in the sludge fermentation tank.

[0007] Based on the above scheme, the preferred embodiment is that water-purifying plants are planted on the gravel layer; and a pressure water pump is installed in the recycled water storage tank.

[0008] Based on the above scheme, preferably, a three-way pipe is connected between the anaerobic fermentation tank and the sludge fermentation tank. One end of the three-way pipe extends to the bottom of the anaerobic fermentation tank through an inlet pipe, and the other end of the three-way pipe extends into the anaerobic sludge reaction zone. The other end of the three-way pipe is connected to an exhaust port.

[0009] Preferably, based on the above scheme, the exhaust port is higher than the sewage level.

[0010] Preferably, based on the above scheme, the end of the inlet tube is fitted with a filter screen.

[0011] Based on the above scheme, the primary sedimentation tank, anaerobic fermentation tank and recycled water storage tank are preferably covered with sealed covers.

[0012] Based on the above-mentioned solution, the sealing cover is preferably provided with an inspection hole.

[0013] Based on the above scheme, preferably, the suspended filler particles have a columnar structure, and the outer edge surface of the suspended filler particles is provided with tooth-shaped protrusions, with grooves formed between adjacent protrusions.

[0014] Based on the above scheme, the suspended filler particles are preferably polyethylene particles.

[0015] Based on the above scheme, the suspended filler particles are preferably hollow in the middle and have multiple isolation plates inside.

[0016] This utility model discloses a resource-utilizing wastewater treatment device. The chamber is divided into three sequentially connected sections: a primary sedimentation tank, an anaerobic fermentation tank, a sludge fermentation tank, and a reclaimed water storage tank, using three partitions. In the primary sedimentation tank, large particles in the wastewater are hydrolyzed, acidified, and precipitated. Then, in the anaerobic fermentation tank, microbial-attached suspended media are added, and the acidified and hydrolyzed wastewater undergoes deep fermentation and decomposition by anaerobic microorganisms, further purifying it. The sludge fermentation tank is divided from bottom to top into an anaerobic sludge fermentation zone, a three-dimensional filter media microbial reaction zone, a microporous ceramic particle adsorption zone, and a gravel filter plant absorption zone, achieving ultimate water purification. The treated water enters the reclaimed water storage tank and can be used for irrigation, toilet flushing, and fire fighting. Auxiliary facilities such as pressure pumps can be added to this area. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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. In the drawings:

[0018] Figure 1 This is a schematic diagram of the resource-utilization type sewage treatment equipment of this utility model;

[0019] Figure 2 This is a three-dimensional view of the suspended filler particles of this utility model;

[0020] Explanation of icon numbers:

[0021] 1. Tank body; 2. Inlet; 3. Outlet; 4. Baffle; 5. Primary sedimentation tank; 6. Anaerobic fermentation tank; 7. Suspended packing particles; 8. Isolation plate; 81. Chamber; 9. Protrusion; 91. Slot; 10. Sludge fermentation tank; 11. Support frame; 12. Anaerobic sludge reaction zone; 13. Three-dimensional PE packing layer; 14. Microporous ceramsite layer; 15. Gravel layer; 16. Outlet pipe; 17. Water purification plants; 18. Reclaimed water storage tank; 19. T-joint; 20. Inlet pipe; 21. Filter screen; 22. Vent; 23. Sealing cover; 24. Inspection hole. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0023] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0024] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0025] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] This embodiment discloses a resource-utilization type wastewater treatment device, including a housing 1, which forms an internal containment cavity and is equipped with an inlet 2 and an outlet 3. The containment cavity is sequentially divided into a primary sedimentation tank 5, an anaerobic fermentation tank 6, a sludge fermentation tank 10, and a reclaimed water storage tank 18 by at least three spaced partitions 4. The tanks are sequentially connected by preset channels, such as... Figure 1 As shown.

[0030] The anaerobic fermentation tank 6 is filled with suspended packing particles 7, which are hollow columnar structures. Radial isolation plates 8 in the center form multiple chambers 81, allowing microorganisms to reside within these chambers and activating their growth. The outer edge has toothed protrusions 9, with microbial attachment grooves 91 formed between adjacent protrusions 9. Figure 2 As shown. It is preferably made of polyethylene material, with a specific surface area of ​​350 m². 2 / m 3 The above allows for the maximum growth of microorganisms even in confined spaces, and enables the effective adsorption and decomposition of harmful substances. This facilitates the easy flow of microorganisms during their growth reaction, allows for smooth contact with wastewater, and enables the formation of a diameter of millimeters and a height of millimeters.

[0031] Please continue reading. Figure 1 As shown, the sludge fermentation tank 10 of this utility model adopts a multi-layer composite structure. A hollow support 11 is set at the bottom to divide the tank into two functional areas: the lower part forms an anaerobic sludge reaction zone 12, and the upper part is arranged from bottom to top as a three-dimensional PE packing layer 13, a microporous ceramsite layer 14, and a gravel layer 15. A drain pipe 16 is set on the partition 4 corresponding to the gravel layer 15 to connect to the recycled water storage tank 18. The surface of the gravel layer 15 is preferably planted with water-purifying plants such as calamus 17. The recycled water storage tank 18 is equipped with a pressure water pump.

[0032] A special flow guiding system is set between each tank: the anaerobic fermentation tank 6 and the sludge fermentation tank 10 are connected by a three-way pipe 19. The first end of the pipe extends to the bottom of the anaerobic fermentation tank 6 through the inlet pipe 20 and is fitted with a filter screen 21. The second end extends to the anaerobic sludge reaction zone 12. The third end is equipped with an exhaust port 22 that is higher than the liquid level. This design achieves gas-liquid separation while preventing the packing material from clogging.

[0033] The primary sedimentation tank 5, the anaerobic fermentation tank 6, and the recycled water storage tank 18 are all equipped with sealed covers 23 with inspection holes 24. The diameter of the inspection holes 24 is not less than 500 mm, and flange connections are used to ensure airtightness. The water level difference between each tank is calculated to maintain a decreasing gradient, with the height difference between the primary sedimentation tank 5 and the recycled water storage tank 18 being 1.2-1.5 m.

[0034] Wastewater enters the primary sedimentation tank 5 through inlet 2 for solid-liquid separation, and then flows sequentially through each treatment unit: anaerobic fermentation tank 6 achieves biodegradation through suspended packing; sludge fermentation tank 10 uses multi-layer packing for deep filtration and plant absorption; finally, the purified water enters the reclaimed water storage tank 18 through outlet pipe 16. Gases generated during the treatment process are safely discharged through exhaust port 22, and the settled sludge undergoes resource-based fermentation in the anaerobic sludge reaction zone 12.

[0035] This embodiment combines structured zoning with multi-stage biological treatment to achieve the dual effects of improving wastewater treatment efficiency and resource recovery, with effluent COD removal rate reaching over 92% and SS removal rate reaching over 95%.

[0036] This utility model discloses a resource-utilizing wastewater treatment device. The chamber is divided into three sequentially connected sections: a primary sedimentation tank 5, an anaerobic fermentation tank 6, a sludge fermentation tank 10, and a recycled water storage tank 18, by three partitions 4. In the primary sedimentation tank 5, large particles in the wastewater are hydrolyzed, acidified, and precipitated. Then, in the anaerobic fermentation tank 6, microbial-attached suspended media are added, and the acidified and hydrolyzed wastewater undergoes deep fermentation and decomposition by anaerobic microorganisms, further purifying it. The sludge fermentation tank 10 is divided from bottom to top into an anaerobic sludge fermentation zone, a three-dimensional filter media microbial reaction zone, a microporous ceramic particle adsorption zone, and a gravel filter plant absorption zone, achieving ultimate water purification. The treated water enters the recycled water storage tank 18 and can be used for irrigation, toilet flushing, and fire fighting. Auxiliary facilities such as pressure pumps can be added to this area.

[0037] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A resource-utilizing wastewater treatment device, characterized in that, The device includes a box with an internal containment cavity, an inlet and an outlet, and at least three partitions spaced apart within the containment cavity, dividing it into a primary sedimentation tank, an anaerobic fermentation tank, a sludge fermentation tank, and a reclaimed water storage tank that are sequentially connected. The anaerobic fermentation tank is filled with suspended packing particles containing biological material. The bottom of the sludge fermentation tank is equipped with a support, which divides the bottom of the sludge fermentation tank into an anaerobic sludge reaction zone. The upper part of the support is equipped with a three-dimensional PE packing layer, a microporous ceramsite layer, and a gravel layer. An outlet pipe connected to the reclaimed water storage tank is provided on the partition corresponding to the gravel layer in the sludge fermentation tank.

2. The resource-utilization type wastewater treatment equipment as described in claim 1, characterized in that, Water-purifying plants are planted on the gravel layer; a pressure water pump is installed in the recycled water storage tank.

3. The resource-utilization type wastewater treatment equipment as described in claim 1, characterized in that, A three-way pipe connects the anaerobic fermentation tank and the sludge fermentation tank. One end of the three-way pipe extends to the bottom of the anaerobic fermentation tank through an inlet pipe, and the other end of the three-way pipe extends into the anaerobic sludge reaction zone. The other end of the three-way pipe is connected to an exhaust port.

4. The resource-utilization type wastewater treatment equipment as described in claim 3, characterized in that, The vent is above the sewage level.

5. The resource-utilization type wastewater treatment equipment as described in claim 3, characterized in that, A filter screen is fitted at the end of the inlet tube.

6. The resource-utilization type wastewater treatment equipment as described in claim 1, characterized in that, The primary sedimentation tank, anaerobic fermentation tank, and recycled water storage tank are all covered with sealed covers.

7. The resource-utilization type wastewater treatment equipment as described in claim 6, characterized in that, The sealing cover is provided with an inspection hole.

8. The resource-utilization type sewage treatment equipment as described in claim 1, characterized in that, The suspended filler particles have a columnar structure, and toothed protrusions are provided on the outer edge surface of the suspended filler particles, forming grooves between adjacent protrusions.

9. The resource-utilization type sewage treatment equipment as described in claim 8, characterized in that, The suspended filler particles are polyethylene particles.

10. The resource-utilization type wastewater treatment equipment as described in claim 1, characterized in that, The suspended filler particles are hollow in the middle and contain multiple isolation plates.

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