Shed type sewage resource utilization device

Abstract

The utility model provides a kind of shed type sewage resource utilization device, comprising: sunlight greenhouse, drip irrigation area, floating vegetable area, aquatic economic crops area, flower planting area and clean water pool;Drip irrigation area, floating vegetable area, aquatic economic crops area, flower planting area and clean water pool are housed in sunlight greenhouse, and are interconnected according to order, and water flow flows from drip irrigation area to clean water pool;Drip irrigation head is equipped in the side of drip irrigation area, and wet economic crops are planted in the filling base material in drip irrigation area, tail water is injected into drip irrigation area by drip irrigation head, and drip irrigation area is at least two layers vertically stacked;Floating vegetable area contains water body and floating bed, and aquatic vegetable is planted on floating bed;Aquatic economic crops area contains water body, and water body is paved with base layer, and aquatic economic crops are planted on base layer;Flower planting area contains water body, and water body has subsurface flow wetland bed, and ornamental flowers are planted in subsurface flow wetland bed.The present application has the effect that ecological sewage resource utilization device has sewage purification capacity under cold condition.

Description

Technical Field

[0001] This utility model belongs to the field of water environment management technology, specifically, it relates to a shed-type wastewater resource utilization device. Background Technology

[0002] Wastewater treatment plant construction plays a vital role in improving the regional water environment. Current wastewater treatment system designs aim to remove pollutants, with nitrogen and phosphorus nutrients being removed as pollutants affecting water quality. Treatment efficiency is influenced by a combination of factors, including process design, influent water quality, climate conditions, and operation and maintenance levels.

[0003] Even after treatment, the wastewater effluent still contains a considerable amount of nutrients such as nitrogen and phosphorus, with concentrations far exceeding the Class V standard for surface water. In addition, most of the effluent from the facilities is discharged into nearby rivers, ditches, ponds, lakes, and other water bodies. If it is not utilized as a resource, it will not only waste resources but also increase the risk of eutrophication and water quality deterioration. Therefore, it is imperative to carry out the resource utilization of wastewater effluent.

[0004] Patent document CN107344757A discloses a vertical wastewater purification and plant cultivation system, including a landscape pond (fish tank), a biofilter wall, a plant wall, and a water spray network. The biofilter wall consists of a frame structure, stainless steel mesh, and biological filter media. The frame structure, located above the landscape pond (fish tank), is constructed using concrete casting and stainless steel pipe welding. Stainless steel mesh is welded to each exterior surface of the frame structure, and the interior space of the frame structure enclosed by the stainless steel mesh is fully filled with biological filter media. The plant wall is tightly attached to the stainless steel mesh on each exterior surface of the biofilter wall. The plant wall consists of planting mats and planting bags. The planting mats are sewn onto the exterior surface of the stainless steel mesh, and rows of planting bags are sewn parallel to the planting mats. The planting bags contain cultivation substrate. A grid-like water spray network is located above the biofilter wall, with spray nozzles evenly distributed on the network. The landscape pond (fish tank) is connected to the water spray network via a water pump and an inlet pipe.

[0005] Although patent document CN107344757A also has the function of purifying water using plants as a carrier, it does not have stable economic value. In cold weather, the whole system cannot operate normally and cannot produce objective economic or ornamental value.

[0006] To ensure that the ecological wastewater resource utilization device maintains its wastewater purification capabilities even under cold conditions, this invention designs a shed-type wastewater resource utilization device, thus solving the aforementioned problems. Utility Model Content

[0007] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a shed-type wastewater resource utilization device.

[0008] According to the present invention, a greenhouse-type wastewater resource utilization device includes: a solar greenhouse, a drip irrigation area, a floating vegetable area, an aquatic economic crop area, a flower planting area, and a clear water pool; The drip irrigation area, floating vegetable area, aquatic economic crop area, flower planting area and clear water pool are housed in a solar greenhouse and are interconnected in sequence, with water flowing from the drip irrigation area to the clear water pool; A drip irrigation head is installed on one side of the drip irrigation area. The drip irrigation area is filled with substrate and planted with wetland economic crops. The tailwater is injected into the drip irrigation area through the drip irrigation head. The drip irrigation area is set up in at least two vertical layers. The floating vegetable area contains water and floating beds, on which aquatic vegetables are grown. The aquatic economic crop area contains a body of water, with a base layer laid at the bottom, on which aquatic economic crops are planted. The flower planting area includes a body of water with a subsurface flow wetland bed on top, where ornamental flowers are planted.

[0009] Preferably, the drip irrigation area includes at least two stacked cultivation racks, cultivation troughs filled with substrate are installed on the cultivation racks, a water distribution network is provided on one side of the cultivation trough, the drip irrigation head is connected to the water distribution network, and the tailwater is injected into the cultivation trough through the water distribution network and the drip irrigation head. Wetland economic crops are planted in the cultivation trough. A water collection system is installed below the bottom cultivation rack, and the water flowing from the upper cultivation racks into the water collection system flows into the floating vegetable area.

[0010] Preferably, the floating vegetable area is a pool, with the inlet and outlet located at the bottom of the pool's side wall. The water level in the pool is higher than the inlet and outlet, and a foam floating bed is laid on the water surface for planting aquatic vegetables. An aeration system is installed at the bottom of the pool.

[0011] Preferably, the aquatic economic crop area is a pond, with the inlet and outlet of the pond located at the bottom of the side wall of the pond, and a substrate layer laid at the bottom of the pond; Aquatic economic crops are planted on the substrate layer.

[0012] Preferably, the flower planting area is a pond, and a subsurface flow wetland bed is set up in the pond; The water inlet of the flower planting area is located above the subsurface flow wetland bed, and the water outlet of the flower planting area is located below the subsurface flow wetland bed. Ornamental flowers are planted on the subsurface wetland bed.

[0013] Preferably, the clear water tank is used to store water, and a water pump extending outward is installed inside the clear water tank.

[0014] Preferably, the cultivation trough is made of at least one of PVC, PP or stainless steel.

[0015] Preferably, the matrix is ​​at least one of perlite, ceramsite, and coconut coir.

[0016] Preferably, the subsurface flow wetland bed includes a soil layer and a gravel layer, with the soil layer located below and the gravel layer located above the soil layer; The water inlet of the flower planting area is located above the gravel layer, and the water outlet of the flower planting area is located on one side of the soil layer.

[0017] Preferably, the top of the solar greenhouse is light-transmitting.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. Compact footprint and stable water output: The shed-style design overcomes the impact of seasonal changes, achieving stable operation throughout the year. The multi-layered, three-dimensional layout greatly improves space utilization efficiency.

[0019] 2. Excellent effluent quality: Through a multi-stage series purification process of "drip irrigation filtration - microbial degradation - matrix adsorption - ecological polishing", a complete and efficient ecological purification chain is formed, resulting in excellent effluent quality.

[0020] 3. Full utilization of resources: The pollutants in the wastewater are regarded as resources and transformed into economic products such as vegetables and flowers, as well as landscape value, thus achieving a balance between environmental and economic benefits.

[0021] 4. Modular and easy to promote: The scale and plant configuration can be flexibly adjusted according to the influent water quality and treatment objectives, making it highly adaptable. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0025] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0026] like Figures 1-3As shown, a greenhouse-type wastewater resource utilization device includes: a solar greenhouse, a drip irrigation area, a floating vegetable area, an aquatic economic crop area, a flower planting area, and a clear water pool. The drip irrigation area, floating vegetable area, aquatic economic crop area, flower planting area, and clear water pool are housed within the solar greenhouse and are interconnected in sequence, with water flowing from the drip irrigation area to the clear water pool.

[0027] Drip irrigation heads are installed on one side of the drip irrigation zone. The zone is filled with substrate for planting wetland crops. Wastewater is injected into the drip irrigation zone through the drip heads. The drip irrigation zone consists of at least two vertically stacked layers. The floating vegetable zone contains a body of water and floating beds, on which aquatic vegetables are planted. The aquatic crop zone contains a body of water with a substrate at the bottom, on which aquatic crops are planted. The flower planting zone contains a body of water with a subsurface flow wetland bed on top, on which ornamental flowers are planted.

[0028] The working principle of this application is as follows: Wastewater from the sewage treatment plant enters the drip irrigation area within a solar greenhouse. After purification by artificial substrates and wetland crops on multi-layered vertical cultivation racks, it flows into the floating vegetable area. There, nitrogen, phosphorus, and organic matter are removed through floating bed vegetables in a shallow pool and an optional microporous aeration system. The water then enters the aquatic economic crop area, where it undergoes deep purification by functional substrates and high-value crops. Finally, it enters the subsurface flow wetland bed in the flower cultivation area for final purification. The purified water is then collected in a clear water pool and can be pumped back for municipal use or landscaping. Its advantages lie in ensuring the purification function and efficiency of crops year-round through the solar greenhouse, preventing water pollution from air or precipitation, and enabling resource utilization of the produced crops and flowers, thus possessing both ecological and economic value.

[0029] Specifically, the greenhouse is a light-transmitting structure with a transparent roof. The drip irrigation area includes at least two layers of stacked cultivation racks. Cultivation troughs filled with a lightweight artificial substrate are installed on these racks. The troughs can be made of PVC, PP (polypropylene), or stainless steel, and the artificial substrate can be a mixture of perlite, expanded clay, and coconut coir. A water distribution network is installed on one side of the cultivation troughs, and drip irrigation heads are connected to this network. Wastewater treatment plant effluent is precisely irrigated through the distribution network and drip irrigation heads to grow wetland crops such as mint and houttuynia cordata in the troughs. A water collection system is located below the bottom cultivation rack. Water from the upper cultivation racks flows into the collection system, and the effluent is purified through the plant roots and substrate before being collected at the bottom of the troughs and flowing into the floating vegetable area.

[0030] In one embodiment, the cultivation rack is provided with four layers, and the water collection system is a box with adjustable water output. The upper opening of the box receives the water flowing down from the cultivation trough, and the bottom of the side wall of the box extends downward to connect with the floating vegetable area.

[0031] Specifically, the floating vegetable area is a pool with both the inlet and outlet located at the bottom of the pool's side wall. The water level in the pool is higher than the inlet and outlet. Modular foam floating beds are laid on the water surface, and aquatic vegetables with well-developed root systems, such as water spinach and water celery, are planted on the floating beds. A microporous aeration system is installed at the bottom of the pool to form a highly efficient purification unit with "plant-microorganism" synergy, which mainly removes nitrogen, phosphorus, and organic matter.

[0032] In one embodiment, the water depth of the floating vegetable area pool is 50cm.

[0033] Specifically, the aquatic economic crop area is a pond, with both the inlet and outlet located at the bottom of the pond's side wall. The bottom of the pond is covered with a functional substrate layer composed of absorbent materials such as zeolite, biochar, and planting soil. High-value aquatic economic crops such as water chestnuts and arrowhead are planted on the substrate layer, and the wastewater is deeply purified through substrate adsorption, microbial degradation, and plant absorption.

[0034] In one embodiment, the water depth in the aquatic economic crop area is 20 cm, and the tops of the aquatic economic crops can protrude above the water surface.

[0035] Specifically, the flower planting area is a pond with a subsurface flow wetland bed inside. The subsurface flow wetland bed consists of a soil layer and a gravel layer, with the soil layer at the bottom and the gravel layer above it. The water level in the subsurface flow wetland bed is about 10cm below the bed, using a top-in, bottom-out method. The water inlet of the flower planting area pond is located above the gravel layer, which prevents the soil from being eroded by the water flow. The height of the water inlet is the same as that of the pond in the aquatic economic crop area. The water outlet of the flower planting area pond is located in the soil layer, thus forming an effective vertical filtration and creating a height difference for water flow. Ornamental flowers such as irises and cannas are planted on the subsurface flow wetland bed to provide final purification of the incoming water.

[0036] The clear water pool is used to store purified water. Its inlet is lower than the water level of the pool in the flower planting area. A water pump can be installed in the clear water pool to pump water from the pool for municipal miscellaneous use or landscape water replenishment.

[0037] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A shed-type wastewater resource utilization device, characterized in that, include: Sunlight greenhouse, drip irrigation area, floating vegetable area, aquatic economic crop area, flower planting area and clear water pond; The drip irrigation area, floating vegetable area, aquatic economic crop area, flower planting area and clear water pool are housed in a solar greenhouse and are interconnected in sequence, with water flowing from the drip irrigation area to the clear water pool; A drip irrigation head is installed on one side of the drip irrigation area. The drip irrigation area is filled with substrate and planted with wetland economic crops. The tailwater is injected into the drip irrigation area through the drip irrigation head. The drip irrigation area is set up in at least two vertical layers. The floating vegetable area contains water and floating beds, on which aquatic vegetables are grown. The aquatic economic crop area contains a body of water, with a base layer laid at the bottom, on which aquatic economic crops are planted. The flower planting area includes a body of water with a subsurface flow wetland bed on top, where ornamental flowers are planted.

2. The shed-type wastewater resource utilization device according to claim 1, characterized in that, The drip irrigation area includes at least two stacked cultivation racks, cultivation troughs filled with substrate are installed on the cultivation racks, a water distribution network is set on one side of the cultivation trough, the drip irrigation head is connected to the water distribution network, and the tail water is injected into the cultivation trough through the water distribution network and the drip irrigation head. Wetland economic crops are planted in the cultivation trough. A water collection system is installed below the bottom cultivation rack, and the water flowing from the upper cultivation racks into the water collection system flows into the floating vegetable area.

3. The shed-type wastewater resource utilization device according to claim 2, characterized in that, The floating vegetable area is a pool with both the inlet and outlet located at the bottom of the pool's side wall. The water level in the pool is higher than the inlet and outlet. Foam floating beds are laid on the water surface, and aquatic vegetables are grown on the foam floating beds. An aeration system is installed at the bottom of the pool.

4. The shed-type wastewater resource utilization device according to claim 3, characterized in that, The aquatic economic crop area is a pond, with the inlet and outlet of the pond located at the bottom of the side wall of the pond, and a substrate layer laid at the bottom of the pond. Aquatic economic crops are planted on the substrate layer.

5. The shed-type wastewater resource utilization device according to claim 4, characterized in that, The flower planting area is a pond, and a subsurface flow wetland bed is set up in the pond; The water inlet of the flower planting area is located above the subsurface flow wetland bed, and the water outlet of the flower planting area is located below the subsurface flow wetland bed. Ornamental flowers are planted on the subsurface wetland bed.

6. The shed-type wastewater resource utilization device according to claim 1, characterized in that, The clear water tank is used to store water, and a water pump extending outward is installed inside the clear water tank.

7. The shed-type wastewater resource utilization device according to claim 2, characterized in that, The cultivation trough is made of at least one of PVC, PP or stainless steel.

8. The shed-type wastewater resource utilization device according to claim 2, characterized in that, The matrix is ​​at least one of perlite, ceramsite, and coconut coir.

9. The shed-type wastewater resource utilization device according to claim 5, characterized in that, The subsurface flow wetland bed includes a soil layer and a gravel layer, with the soil layer located below and the gravel layer located above the soil layer; The water inlet of the flower planting area is located above the gravel layer, and the water outlet of the flower planting area is located on one side of the soil layer.

10. The shed-type wastewater resource utilization device according to claim 1, characterized in that, The top of the solar greenhouse is light-transmitting.

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