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CN-224226820-U - Purifying and recycling system for non-point source pollution treatment

CN224226820UCN 224226820 UCN224226820 UCN 224226820UCN-224226820-U

Abstract

The utility model discloses a purification and recycling system for non-point source pollution treatment, which comprises farmlands and an aquaculture pond, wherein a water outlet of the farmlands and a water outlet of the aquaculture pond are respectively connected with a water inlet of an ecological ditch branch, the water outlet of the ecological ditch branch is connected with a water inlet of an ecological main ditch, a water outlet of the ecological main ditch is connected with a water inlet of an artificial wetland, outlet water of the artificial wetland is connected with a water inlet of an ecological water storage tank, a water pumping port of a lifting pump station is arranged in the ecological water storage tank, a water outlet of the lifting pump station is arranged in a circulating branch canal, a plurality of water pumps are arranged in the circulating branch canal, water outlets of part of the water pumps are positioned in the farmlands, and water outlets of the rest of the water pumps are positioned in the aquaculture pond. The ecological main ditch, the artificial wetland, the ecological water storage tank and the circulating branch ditch are respectively provided with aquatic plants, tail water can be effectively purified, the problem of non-point source pollution is solved, and the purified tail water is finally recharged to farmlands and culture ponds through the lifting pump station and the circulating branch ditch.

Inventors

  • LI HUI
  • LEI YUXIN
  • ZHAO XUAN
  • LI JING

Assignees

  • 武汉中科水生生态环境股份有限公司

Dates

Publication Date
20260512
Application Date
20250605

Claims (10)

  1. 1. A purification recycling system for non-point source pollution treatment comprises a farmland (1) and an aquaculture pond (2), and is characterized in that a water outlet of the farmland (1) and a water outlet of the aquaculture pond (2) are respectively connected with a water inlet of an ecological ditch tributary (7), the water outlet of the ecological ditch tributary (7) is connected with a water inlet of an ecological main ditch (8), a water outlet of the ecological main ditch (8) is connected with a water inlet of an artificial wetland (9), water outlet of the artificial wetland (9) is connected with a water inlet of an ecological water storage tank (10), a water pumping port of a lifting pump station (11) is arranged in the ecological water storage tank (10), a water outlet of the lifting pump station is arranged in a circulating branch canal (12), a plurality of water pumps are arranged in the circulating branch canal (12), water outlets of partial water pumps are positioned in the farmland (1), and water outlets of the rest water pumps are positioned in the aquaculture pond (2).
  2. 2. The purification and reuse system for non-point source pollution treatment according to claim 1, wherein emergent aquatic plants are planted on two sides of a canal body of the ecological main canal (8), submerged plants are planted at the bottom of the ecological main canal (8), and reoxygenation devices are arranged in the ecological main canal (8) at intervals.
  3. 3. The purification and reuse system for non-point source pollution treatment according to claim 2, wherein a constructed wetland sedimentation zone (91) and a wetland purification zone (92) are arranged in the constructed wetland (9), the water inlet of the constructed wetland sedimentation zone (91) is the water inlet of the constructed wetland (9), the water outlet of the constructed wetland sedimentation zone (91) is communicated with the water inlet of the wetland purification zone (92), and the water outlet of the constructed wetland purification zone (92) is the water outlet of the constructed wetland (9).
  4. 4. A purification and reuse system for non-point source pollution treatment according to claim 3, characterized in that a plurality of guide walls are arranged in said wetland purification zone (92), and the guide walls are distributed in a staggered manner to form a serpentine flow passage.
  5. 5. The purification and reuse system for non-point source pollution treatment according to claim 4, wherein the width of the wall top of the guide wall is 1.5-2 m, and the slope ratio is 1:2.
  6. 6. The purification and reuse system for non-point source pollution treatment according to claim 3, wherein submerged plants, floating plants and emergent aquatic plants are planted in the wetland purification area (92), the planting area of the submerged plants in the wetland purification area (92) accounts for 60-70% of the area of the wetland purification area (92), the planting area of the emergent aquatic plants in the wetland purification area (92) accounts for 6-10% of the area of the wetland purification area (92), and the planting area of the floating plants in the wetland purification area (92) accounts for 1-2% of the area of the wetland purification area (92).
  7. 7. The purification and reuse system for non-point source pollution treatment according to claim 6, characterized in that a solar aerator is arranged in the wetland purification zone (92).
  8. 8. The purification and reuse system for non-point source pollution treatment according to claim 6, characterized in that submerged plants are planted in the ecological water storage tank (10).
  9. 9. The purification and reuse system for non-point source pollution treatment according to claim 8, characterized in that submerged plants and emergent aquatic plants are planted in the circulation canal (12).
  10. 10. The purification and reuse system for non-point source pollution treatment according to claim 9, wherein the submerged plant is bitter herb or leaf-black algae or foxtail algae or malaytea scurfpea, the floating leaf plant is water lily, and the emergent aquatic plant is canna or iris or reed or flower-leaf reed or flowers.

Description

Purifying and recycling system for non-point source pollution treatment Technical Field The utility model belongs to the field of sewage treatment, and particularly relates to a purification and reuse system for non-point source pollution treatment, which is suitable for agricultural non-point source pollution control. Background And water drainage is needed in the period of high water in pond culture and farmlands. In the agricultural planting process, a large amount of pesticides and fertilizers can be used irregularly, and in the pond culture process, a large amount of feeds can be fed, so that residual baits and feces are accumulated highly. If the tail water discharged from farmlands or culture ponds is not purified, non-point source pollution is easy to form, and serious harm is brought to rural water environment. And water is required to be supplemented in the dead water period of pond culture and farmlands. If the tail water discharged by pond culture and farmland can be refilled after being purified, the water resource utilization rate can be greatly improved while the non-point source pollution is treated. Disclosure of utility model The utility model provides a purifying and recycling system for non-point source pollution treatment aiming at the problems existing in the prior art. The above object of the present utility model is achieved by the following technical means: The utility model provides a purify recycling system for non-point source pollution treatment, including farmland and breed aqua Pond, the outlet in farmland and the outlet of breed aqua Pond are connected with the water inlet of ecological irrigation canals and ditches tributary respectively, the outlet of ecological irrigation canals and ditches is connected with the water inlet of ecological owner's canal, the delivery port of ecological owner's canal is connected with the water inlet of constructed wetland, the export water of constructed wetland is connected with the water inlet of ecological aqua storage pond, the water inlet setting of lift pump station is in ecological aqua storage pond, the delivery port setting of lift pump station is in the circulation canal, be provided with a plurality of water pumps in the circulation canal, the delivery port of partial water pump is located the farmland, the delivery port of the rest water pump is located the breed aqua Pond. Emergent aquatic plants are planted on two sides of the canal body of the ecological main canal, submerged plants are planted at the bottom of the ecological main canal, and reoxygenation devices are arranged in the ecological main canal at intervals. The constructed wetland is internally provided with a wetland sedimentation zone and a wetland purification zone, the water inlet of the wetland sedimentation zone is the water inlet of the constructed wetland, the water outlet of the wetland sedimentation zone is communicated with the water inlet of the wetland purification zone, and the water outlet of the wetland purification zone is the water outlet of the constructed wetland. A plurality of guide walls are arranged in the wetland purification area, and the guide walls are distributed in a staggered manner to form a serpentine flow passage. The width of the wall top of the guide wall is 1.5-2 m, and the slope ratio is 1:2. The wetland purification area is planted with submerged plants, floating plants and emergent aquatic plants, the planting area of the submerged plants in the wetland purification area accounts for 60-70% of the area of the wetland purification area, the planting area of the emergent aquatic plants in the wetland purification area accounts for 6-10% of the area of the wetland purification area, and the planting area of the floating plants in the wetland purification area accounts for 1-2% of the area of the wetland purification area. A solar aerator is arranged in the wetland purification area. Submerged plants are planted in the ecological water storage tank. Submerged plants and emergent aquatic plants are planted in the circulating branch canal. The submerged plant is herba Sonchi Oleracei or Sargassum gracile or Sargassum fusiforme or herba Malloti Apeltae, the floating leaf plant is flos Nymphaeae, and the emergent plant is canna or rhizoma Iridis or rhizoma Phragmitis or flos Alternantherae. Compared with the prior art, the utility model has the following beneficial effects: 1. aquatic plants are arranged in the ecological main ditch, the artificial wetland, the ecological water storage tank and the circulating branch ditch, so that tail water can be effectively purified, and the problem of non-point source pollution is solved; 2. The constructed wetland is internally provided with a wetland sedimentation area and a wetland purification area, the wetland sedimentation area can effectively reduce sediment and suspended matters of inflowing water, and the wetland purification area can be provided with a plurality of guide walls to form a