Modular wetland units for rural domestic sewage landscape ecological treatment systems

Abstract

This utility model discloses a modular wetland unit for a rural domestic sewage landscape ecological treatment system, comprising: a sewage treatment device and a wetland planting device; the sewage treatment device includes a first base plate, two first long side plates, and two first short side plates; a first partition and a second partition parallel to the first short side plates are installed at intervals within the cavity, and a conduit is installed on the partition; an inlet pipe is provided on the first short side plate near the first partition, and an outlet pipe is provided on the first short side plate near the second partition; at least one insertion interface is provided on each first long side plate; the wetland planting device is positioned above the sewage treatment device; at least two insertion interfaces are provided on the second long side plate or the second short side plate. In the above-described scheme of this utility model, the various modular units are flexibly spliced ​​through insertion interfaces and connecting pipes, and can be freely combined according to the needs of water treatment volume, terrain layout, etc., possessing good scalability and adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of rural sewage treatment technology, and in particular relates to a modular wetland unit for a rural domestic sewage landscape ecological treatment system. Background Technology

[0002] With the continuous advancement of urban-rural integration, rural environmental governance has received increasing attention, especially the discharge and treatment of rural domestic sewage, which has become a significant factor restricting the improvement of rural living environments and sustainable development. Generally, cities have well-developed drainage networks and centralized sewage treatment plants, allowing domestic sewage to be collected and treated uniformly through municipal pipeline systems, and then reused or discharged into water bodies after meeting discharge standards. However, rural areas often feature scattered residential structures with inadequate drainage systems; some areas even lack basic sewage collection and treatment facilities. This leads to domestic sewage often being disposed of through open channels, seepage pits, and wells, which not only pollutes water bodies but may also cause environmental problems such as soil degradation and groundwater pollution.

[0003] To address the aforementioned issues, some regions have begun to explore the promotion of small-scale, decentralized wastewater treatment devices in rural areas, such as buried integrated wastewater treatment equipment, ecological pond treatment systems, and constructed wetlands. These devices offer advantages such as compact structure, short construction period, and low energy consumption, making them suitable for small-scale rural wastewater treatment needs. However, existing rural wastewater treatment devices still have several shortcomings in their promotion and practical application. First, existing devices typically require personalized design and customization based on each household's specific circumstances—including house size, number of people, and water usage habits—making standardized, modular factory prefabrication difficult. This not only increases initial design and subsequent construction costs but also significantly reduces the efficiency of device promotion and construction progress. Especially in rural areas where construction conditions are limited, the installation and commissioning process is cumbersome, hindering large-scale application. Second, for aesthetic, safety, and space utilization considerations, rural wastewater treatment devices are mostly installed underground. However, to facilitate equipment inspection and maintenance, the burial depth is generally shallow, resulting in limited soil thickness and insufficient bearing capacity. This prevents users from planting conventional crops or economic plants on it, affecting the integrated use of land resources and going against the original intention of rural residents to achieve simultaneous operation of "above-ground planting and underground processing".

[0004] In summary, although existing rural sewage treatment technologies have alleviated environmental pollution to some extent, they still suffer from problems such as poor design flexibility, low construction efficiency, limited use of above-ground space, and insufficient environmental integration. Optimization and improvement in structural design, installation methods, and integrated utilization are urgently needed. Utility Model Content

[0005] The purpose of this invention is to provide a modular wetland unit for a rural domestic sewage landscape ecological treatment system to solve the problems of low construction efficiency and insufficient environmental integration.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A modular wetland unit for a rural domestic sewage landscape ecological treatment system, comprising: a sewage treatment device and a wetland planting device; the sewage treatment device includes a first base plate, two first long side plates and two first short side plates; the first long side plates and the first short side plates are vertically connected to the upper part of the first base plate and form a cuboid cavity; a first partition and a second partition parallel to the first short side plates are installed at intervals in the cavity, a first conduit is installed on the first partition, and a second conduit is installed on the second partition; an inlet pipe is provided on the first short side plate near the first partition, and an outlet pipe is provided on the first short side plate near the second partition; at least one insertion interface is provided on each first long side plate; the wetland planting device is disposed above the sewage treatment device, the wetland planting device includes a second base plate, two second long side plates and two second short side plates; the second long side plates and the second short side plates are vertically connected to the upper part of the second base plate and form a cuboid cavity; at least two insertion interfaces are provided on the second long side plate or the second short side plate.

[0007] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes a first chamber between the first partition and the corresponding first short side plate, a second chamber between the first partition and the second partition, and a third chamber between the second partition and the corresponding first short side plate; the first conduit connects the first chamber and the second chamber, and the second conduit connects the second chamber and the third chamber.

[0008] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes a first conduit with a lower edge height that is less than that of the second conduit.

[0009] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes a first long side plate with a first insertion interface, a second insertion interface and a third insertion interface, and a fourth insertion interface, a fifth insertion interface and a sixth insertion interface on the other first long side plate; the third insertion interface and the sixth insertion interface correspond to the first chamber, the second insertion interface and the fifth insertion interface correspond to the second chamber, and the first insertion interface and the fourth insertion interface correspond to the third chamber.

[0010] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes an interface connector pre-embedded at the insertion interface position. The interface connector includes an inner tube, a rubber ring, and a water-stop plate. The rubber ring has a cavity inside and is disposed on the outer wall of the inner tube. The water-stop plate is disposed on the outer wall of the inner tube.

[0011] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes a second base plate of the wetland planting device with an insertion boss, forming an insertion notch at the junction of the second base plate and the insertion boss, and the insertion boss is inserted into the top of the sewage treatment device.

[0012] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes a connecting pipe, which connects between two plug interfaces at the positional connection of two adjacent modular wetland units.

[0013] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes an interface sealing component, which is installed in the insertion interface without a connecting pipe.

[0014] The modular wetland unit for rural domestic sewage landscape ecological treatment system described above further includes a seventh insertion interface on one of the second short side plates of the wetland planting device and an eighth insertion interface on the other second short side plate.

[0015] The beneficial effects of this utility model are:

[0016] 1. Highly adaptable and easy to promote and apply: Each module unit can be flexibly spliced ​​through plug-in interfaces and connecting pipes, and can be freely combined according to the needs of water treatment volume, terrain layout, etc. It has good scalability and adaptability, which is conducive to its widespread application in different types of rural areas.

[0017] 2. The land can be used for greening, enhancing the landscape value; the wetland planting device is set above the sewage treatment device, realizing the spatial superposition of "planting above ground and treatment below ground", which not only makes full use of land resources, but also creates a good ecological landscape environment, meeting the usage needs and aesthetic expectations of rural residents. Attached Figure Description

[0018] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0019] Figure 1A schematic diagram of a modular wetland unit used in a rural domestic sewage landscape ecological treatment system.

[0020] Figure 2 A cross-sectional view of a modular wetland unit used in a rural domestic sewage landscape ecological treatment system.

[0021] Figure 3 This is a schematic diagram of a sewage treatment device according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of an interface connector according to an embodiment of the present invention;

[0023] Figure 5 This is a cross-sectional schematic diagram of an interface connector according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram showing the combined state of two modular wetland units;

[0025] Figure 7 This is a schematic diagram illustrating the connection method between two modular wetland units;

[0026] Figure 8 This is a schematic diagram of an interface sealing component according to an embodiment of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 10. Wastewater treatment device; 11. First long side plate; 111. First insertion interface; 112. Second insertion interface; 113. Third insertion interface; 114. Fourth insertion interface; 115. Fifth insertion interface; 116. Sixth insertion interface; 12. First short side plate; 13. First partition plate; 14. Second partition plate; 15. First conduit; 16. Second conduit; 17. Inlet pipe; 18. Outlet pipe; 20. Wetland planting device; 21. Second long side plate; 22. Second short side plate; 23. Seventh insertion interface; 24. Eighth insertion interface; 25. Insertion boss; 26. Insertion notch; 30. Interface connector; 31. Inner pipe; 32. Rubber ring; 33. Waterstop plate; 34. Cavity; 40. Connecting pipe; 50. Interface sealing component. Detailed Implementation

[0029] In the following description, embodiments of the modular wetland unit of the present invention for a rural domestic sewage landscape ecological treatment system will be described with reference to the accompanying drawings.

[0030] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0031] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0032] To make the technical solution of this utility model clearer and easier to understand, the overall structure of the modular wetland unit and the cooperation relationship of its components are further explained below. This modular wetland unit is based on a box-type structure, and system expansion is achieved through splicing to adapt to different wastewater treatment needs. The following is in conjunction with... Figures 1 to 8 This invention describes a modular wetland unit for a rural domestic sewage landscape ecological treatment system, comprising:

[0033] Wastewater treatment device 10; Wastewater treatment device 10 includes a first base plate, two first long side plates 11 and two first short side plates 12; the first long side plates 11 and the first short side plates 12 are vertically connected to the upper part of the first base plate and form a cuboid cavity; a first partition 13 and a second partition 14 parallel to the first short side plates 12 are installed at intervals in the cavity, a first conduit 15 is installed on the first partition 13 and a second conduit 16 is installed on the second partition 14; the first conduit 15 and the second conduit 16 are preferably PVC pipes with 90° bends and a pipe diameter of 50-100mm to balance the flow rate and anti-clogging requirements. A water inlet pipe 17 is provided on the first short side plate 12 near the first partition 13, and a water outlet pipe 18 is provided on the first short side plate 12 near the second partition 14; each first long side plate 11 has at least one insertion interface; the first base plate is preferably an integrally formed reinforced concrete structure with a thickness of 8cm to 12cm, which has strong load-bearing capacity and seepage prevention performance; the first long side plate 11 and the first short side plate 12 are tied with steel bars and integrally cast with the first base plate to form a rigid connection structure to ensure structural stability.

[0034] A wetland planting device 20 is installed above the wastewater treatment device 10. The wetland planting device 20 includes a second base plate, two second long side plates 21, and two second short side plates 22. The second long side plates 21 and the second short side plates 22 are vertically connected to the upper part of the second base plate to form a cuboid cavity. The wetland planting device 20 is filled with a wetland substrate layer, preferably including a gravel layer, a slag layer, and an artificial filler layer. The gravel layer is located at the bottom and supports the wetland substrate structure; the slag layer enhances adsorption; and the artificial filler layer supports the growth of wetland plants. Aquatic plants, such as cattails, reeds, and yellow irises, are preferably planted in the wetland planting device. These plants have strong water purification capabilities and can absorb nutrients such as nitrogen and phosphorus from wastewater, thereby improving the quality of the effluent. At least two insertion interfaces are provided on the second long side plate 21 or the second short side plate 22. In a preferred embodiment of a modular wetland unit for a rural domestic wastewater landscape ecological treatment system, such as… Figure 2 As shown, the second base plate of the wetland planting device 20 is provided with a plug-in boss 25, and a plug-in notch 26 is formed at the junction of the second base plate and the plug-in boss 25. The plug-in boss 25 is plugged into the top of the sewage treatment device 10. In this utility model, the wetland planting device plays a sealing role after being installed on the top of the sewage treatment device, preventing odors from polluting the air inside the sewage treatment device. In a further preferred embodiment, a sewage cleaning port communicating with the sewage treatment device is provided on the second base plate.

[0035] After the two modular wetland units are assembled, the insertion interfaces on the adjacent first long side plates 11 of the wastewater treatment device are aligned and can be connected by connecting pipes. In this way, the two adjacent modular wetland units are assembled into a whole and can treat wastewater. The insertion interfaces of the two adjacent wetland planting devices are connected by guide pipes, so that the water flow in the adjacent wetland planting devices can be mutually circulated.

[0036] This utility model's modular wetland unit can be prefabricated in a processing plant and transported to the construction site for assembly, thus adapting to different usage needs. For example, for household-based usage scenarios, one modular wetland unit or two or more modular wetland units can be used, depending on factors such as the building area and the actual number of family members, to meet wastewater treatment needs. This utility model's modular wetland unit is preferably suitable for usage scenarios where wastewater from several households is collected and comprehensively treated. In this scenario, several adjacent households (e.g., 4 to 10 households) set up multiple modular wetland units assembled as a whole in a common area, and the interfaces of adjacent wastewater treatment devices are connected by connecting pipes to increase wastewater treatment capacity; at the same time, diversion pipes are used to connect the interfaces of two adjacent wetland planting devices. Using it in this way, while meeting the wastewater treatment capacity, it can also provide a large area of ​​wetland planting, thus forming a more integrated and larger-scale wetland green space, facilitating unified greening and management of the wetland.

[0037] In a preferred embodiment of a modular wetland unit for a rural domestic sewage landscape ecological treatment system, such as Figure 2 and Figure 3 As shown, the space between the first partition 13 and the corresponding first short side plate 12 forms the first chamber; the space between the first partition 13 and the second partition 14 forms the second chamber; and the space between the second partition 14 and the corresponding first short side plate 12 forms the third chamber. The sewage flow path is: inlet pipe 17 → first chamber → first conduit 15 → second chamber → second conduit 16 → third chamber → outlet pipe 18, achieving graded treatment. The first conduit 15 connects the first chamber and the second chamber, and the second conduit 16 connects the second chamber and the third chamber. In one specific embodiment, as shown... Figure 2 As shown, the lower edge height of the first conduit 15 is less than that of the second conduit 16. Since rural sewage contains a significant amount of solids (such as those found in feces), excessive accumulation of solids in the first chamber of the sewage treatment device can lead to blockage of the inlet pipe, affecting normal drainage and the use of building drainage systems (such as flush toilets). Both the first and second conduits have a bent structure. The lower edge of the conduit opening is the lowest point of the conduit inlet, which affects the sewage discharge height that can flow from the upper chamber to the lower chamber. In other words, sewage below the lower edge of the opening will generally not flow into the lower chamber. Preferably, the lower edge of the first conduit opening is 20 to 30 centimeters from the first base plate, allowing more solids in the sewage to flow from the first chamber to the second chamber, reducing inlet pipe blockage.

[0038] In a preferred embodiment of a modular wetland unit for a rural domestic sewage landscape ecological treatment system, such as Figure 2 and Figure 3As shown, one of the first long side plates 11 is provided with a first insertion interface 111, a second insertion interface 112, and a third insertion interface 113, and the other first long side plate 11 is provided with a fourth insertion interface 114, a fifth insertion interface 115, and a sixth insertion interface 116; the third insertion interface 113 and the sixth insertion interface 116 correspond to the first chamber, the second insertion interface 112 and the fifth insertion interface 115 correspond to the second chamber, and the first insertion interface 111 and the fourth insertion interface 114 correspond to the third chamber. Based on the above structure, the wastewater treatment device is further improved. In a preferred embodiment of a modular wetland unit for a rural domestic wastewater landscape ecological treatment system, such as... Figure 1 and Figure 2 As shown, a seventh insertion interface 23 is provided on one of the second short side plates of the wetland planting device 20, and an eighth insertion interface 24 is provided on the other second short side plate.

[0039] Wastewater treatment devices are typically constructed using concrete casting. If PVC direct connectors are pre-embedded at the interface locations, leakage is likely to occur through the gaps between the connectors and the concrete. In a preferred embodiment of a modular wetland unit for a rural domestic wastewater landscape ecological treatment system, such as... Figure 4 and Figure 5 As shown, an interface connector 30 is pre-embedded at the insertion interface location. The interface connector 30 includes an inner tube 31, a rubber ring 32, and a waterstop plate 33. The rubber ring 32 has a cavity 34 inside and is disposed on the outer wall of the inner tube 31; the waterstop plate 33 is disposed on the outer wall of the inner tube 31. During concrete pouring, the concrete compresses the rubber ring 32 from both sides, thereby forming an outward elastic force. After the concrete solidifies, the elastic force also ensures a tight seal between the rubber ring and the concrete. The waterstop plate further prevents water leakage at the joint and prevents the inner tube from axially shifting under external forces.

[0040] Figure 6 This is a schematic diagram showing the combined state of two modular wetland units. Figure 7 This diagram illustrates the connection between two modular wetland units. Connecting pipe 40 connects to two interlocking interfaces at the locations where the two adjacent modular wetland units are joined. Specifically, the connecting pipes connect to the interlocking interfaces on adjacent first long side plates, thereby connecting two adjacent first, second, and third chambers in parallel. In a preferred embodiment of a modular wetland unit for a rural domestic sewage landscape ecological treatment system, as shown... Figure 7 and Figure 8 As shown, it also includes an interface sealing component 50, which is installed inside the insertion interface without a connecting pipe 40. The inner tube, connecting pipe, and interface sealing component of the interface connector 30 of this utility model are preferably made of PVC (Polyvinylchloride) material, which facilitates on-site construction using adhesive bonding.

[0041] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.

Claims

1. A modular wetland unit for a rural domestic sewage landscape ecological treatment system, characterized in that, include: Wastewater treatment device (10) and wetland planting device (20); the wastewater treatment device (10) includes a first base plate, two first long side plates (11) and two first short side plates (12); the first long side plates (11) and the first short side plates (12) are vertically connected to the upper part of the first base plate and form a cuboid cavity; a first partition plate (13) and a second partition plate (14) parallel to the first short side plates (12) are installed at intervals in the cavity, a first conduit (15) is installed on the first partition plate (13), and a second conduit (16) is installed on the second partition plate (14); the first short side plate (12) is close to the first partition plate (13). The device is equipped with an inlet pipe (17) and an outlet pipe (18) on the first short side plate (12) near the second partition (14); each first long side plate (11) is provided with at least one insertion interface; the wetland planting device (20) is located above the sewage treatment device (10), and the wetland planting device (20) includes a second base plate, two second long side plates (21) and two second short side plates (22); the second long side plates (21) and the second short side plates (22) are vertically connected to the upper part of the second base plate to form a cuboid cavity; at least two insertion interfaces are provided on the second long side plate (21) or the second short side plate (22).

2. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 1, characterized in that, The first chamber is between the first partition (13) and the corresponding first short side plate (12), the second chamber is between the first partition (13) and the second partition (14), and the third chamber is between the second partition (14) and the corresponding first short side plate (12); the first conduit (15) connects the first chamber and the second chamber, and the second conduit (16) connects the second chamber and the third chamber.

3. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 1, characterized in that, The lower edge height of the opening of the first conduit (15) is less than the lower edge height of the opening of the second conduit (16).

4. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 2 or 3, characterized in that, One of the first long side plates (11) is provided with a first plug-in interface (111), a second plug-in interface (112) and a third plug-in interface (113), and the other first long side plate (11) is provided with a fourth plug-in interface (114), a fifth plug-in interface (115) and a sixth plug-in interface (116); the third plug-in interface (113) and the sixth plug-in interface (116) correspond to the first chamber, the second plug-in interface (112) and the fifth plug-in interface (115) correspond to the second chamber, and the first plug-in interface (111) and the fourth plug-in interface (114) correspond to the third chamber.

5. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 4, characterized in that, An interface connector (30) is pre-embedded at the insertion interface position. The interface connector (30) includes an inner tube (31), a rubber ring (32), and a waterstop plate (33). The rubber ring (32) has a cavity (34) inside and is disposed on the outer wall of the inner tube (31). The waterstop plate (33) is disposed on the outer wall of the inner tube (31).

6. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 5, characterized in that, The second base plate of the wetland planting device (20) is provided with a plug-in boss (25), and a plug-in notch (26) is formed at the junction of the second base plate and the plug-in boss (25). The plug-in boss (25) is plugged into the top of the sewage treatment device (10).

7. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 6, characterized in that, It also includes a connecting pipe (40), which connects to two plug interfaces at the positional docking of two adjacent modular wetland units.

8. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 7, characterized in that, It also includes an interface sealing element (50), which is installed in the plug interface without a connecting pipe (40).

9. The modular wetland unit for rural domestic sewage landscape ecological treatment system according to claim 8, characterized in that, The wetland planting device (20) has a seventh insertion interface (23) on one of its second short side plates and an eighth insertion interface (24) on the other second short side plate.

Images