一种基于生物生态净化的农田排水沟渠
By introducing a composite filler layer and planting modules into farmland drainage ditches, combined with a pumping mechanism and microporous ceramic filter, the problem of traditional ditches being unable to effectively purify pollutants has been solved, achieving efficient purification of farmland drainage and recycling of water resources.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING WATER RESOURCES & HYDROPOWER SURVEY DESIGN & RES INST CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional farmland drainage ditches cannot effectively remove pollutants such as nitrogen and phosphorus, causing these pollutants to directly enter downstream water bodies and deteriorate the river and lake water environment.
A farmland drainage ditch based on biological ecological purification is designed, which adopts a composite filler layer and planting module, combined with a pumping mechanism and microporous ceramic filter to achieve purification and recycling of farmland drainage.
Through the synergistic effect of plant root absorption, microbial degradation, and composite filler layer, the purification efficiency of pollutants such as nitrogen and phosphorus is significantly improved, realizing efficient purification of farmland drainage and recycling of water resources.
Smart Images
Figure CN224514169U_ABST
Abstract
Claims
1. An agricultural field drainage ditch based on biological ecological purification, comprising a drainage ditch main body (1), characterized in that: The top of the main body (1) of the drainage ditch is fixedly connected with multiple fixing strips (2), and multiple planting modules (3) are slidably connected between each two fixing strips (2). The main body (1) of the drainage ditch is equipped with a pumping mechanism (4) for supplying water to the planting module (3) for irrigation. The outer wall of the pumping mechanism (4) is fixedly connected with a plurality of first irrigation pipes (5) and two water conveying pipes (6). The outer walls of the two water conveying pipes (6) are fixedly connected with two second irrigation pipes (7). The drainage ditch body (1) is lined with composite filler (8) at the bottom.
2. The farmland drainage ditch based on biological ecological purification according to claim 1, characterized in that: The fixing strip (2) is provided with a T-shaped groove adapted to the planting module (3), and a rubber pad for buffering is provided at the connection between the planting module (3) and the T-shaped groove.
3. The biological eco-purification based farmland drainage ditch according to claim 1, characterized in that: The bottom of the frame of the planting module (3) is provided with several hollow drainage holes, and microporous ceramic filter sheets are embedded in the drainage holes.
4. The biological eco-purification based farmland drainage ditch according to claim 1, characterized in that: The pumping mechanism (4) includes two fixed plates (401) installed inside the main body of the drainage ditch (1). A water wheel (402) is rotatably connected between the two fixed plates (401). Active conical teeth (403) are fixedly connected to both sides of the water wheel (402). Waterproof boxes (404) are fixedly connected to the other side of the two fixed plates (401). Driven conical teeth (405) are installed inside the two waterproof boxes (404). Filter screen pipes (406) are fixedly connected to the top of the two waterproof boxes (404). Two connecting strips (407) are fixedly connected to the inner wall of the main body of the drainage ditch (1). A pumping pipe (408) is fixedly connected to the other end of the two connecting strips (407). A screw conveyor shaft (409) is fixedly connected to the top of the two driven conical teeth (405).
5. The bio-ecological purification based farmland drainage ditch according to claim 4, characterized in that: The driven bevel tooth (405) and the active bevel tooth (403) are provided with a waterproof sealing sleeve at their meshing point, and the waterproof sealing sleeve is sealed and snapped into the inner wall of the waterproof box (404).
6. The bio-ecological purification based farmland drainage ditch according to claim 1, characterized in that: The first irrigation pipe (5) and the second irrigation pipe (7) are provided with several downward-sloping irrigation holes on their pipe walls, and the irrigation holes are detachably connected with anti-clogging silicone guide heads.
7. The bio-ecological purification based farmland drainage ditch according to claim 1, characterized in that: The composite filler (8) consists of a gravel layer, a biochar layer, and a ceramsite layer from bottom to top, and each layer of filler is separated by a permeable partition.