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Reciprocating type plant grid system and application thereof

A plant grid, reciprocating technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of large land occupation, obstruction of smooth water flow, and inability to adapt to changeable farmland ditches Water depth and other issues, to achieve the effect of small footprint, improved removal effect, easy cleaning and replacement

Inactive Publication Date: 2010-09-29
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Utilizing the reciprocating plant grid provided by the present invention can not only effectively intercept the pollutants in the farmland drainage, but also ensure the unimpeded water flow of the ditches, and can effectively overcome the disadvantages of hindering the smooth flow of water and occupying a large area in the prior art. , to solve the problem that the existing phytoremediation technology cannot adapt to the variable water depth of farmland ditches

Method used

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  • Reciprocating type plant grid system and application thereof
  • Reciprocating type plant grid system and application thereof
  • Reciprocating type plant grid system and application thereof

Examples

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Effect test

Embodiment 1

[0033] To build a reciprocating plant grid system, see figure 1 , 6 ; Take the straight pentagonal prism as the shape of the plant grid body as an example to illustrate the specific implementation; the straight pentagonal prism A 1 A 2 A 3 A 4 A 5 -A 1 'A 2 'A 3 'A 4 'A 5 ’, prism side A 3 A 4 B 4 B 3 The included angle with the cross section of the ditch is θ, and the edge A 3 A 4 (A 3 'A 4 ), edge A 4 A5 (A 4 'A 5 ’) are respectively l and b, and the lengths of the other three groups of pentagonal prisms can be described by l, b and θ, Use bamboo or wood to build the main body of the plant grid frame. The outer diameter of bamboo or wood strips is controlled at 6cm. The parts are connected with galvanized iron wires and iron nails. In use, ceramsite and zeolite are placed on the grid made of coconut palm fiber. In the drawer, there are ceramsite and layer zeolite layers from bottom to top, and corresponding plants are planted on the top, and then a ...

Embodiment 2

[0040] A water tank is designed in the interior, and the characteristics of the water tank are length × width × height = 120cm × 50cm × 80cm, and the water tank experiment is carried out. The constructed elliptical cylindrical reciprocating plant grid ( Figure 7 ), made of polytetrafluoroethylene buckets after punching and fixing, the volume of the grid body is about 0.0624m 3 The height of grid body is 45cm; The laying thickness of ceramsite is 22cm; The thickness of zeolite laying is 3.5cm; Ceramsite; The self weight of plant grid area is greater than or equal to the buoyancy in sewage; 100 plants / m 2 The fixed connection shaft is constructed with a PVC pipe, its outer diameter is 5cm, and its length is 80cm. The vertical distance of the groove is 10cm. The bottom and side surfaces of the plant grid frame are constructed of a mesh structure with an aperture of 0.5-1.0 cm, such as galvanized barbed wire, rattan woven net or bamboo woven net. The concentrations of the ind...

Embodiment 3

[0042] A water tank is designed in the interior, and the characteristics of the water tank are length × width × height = 120cm × 50cm × 80cm, and the water tank experiment is carried out. The constructed vase-shaped reciprocating plant grid ( Figure 8 ), the volume of the grid body is about 0.056m 3 The height of the grid body is 50cm; the laying thickness of ceramsite is 25cm; the laying thickness of zeolite is 5cm; the coconut palm fiber mat is 10cm; The grid frame is made of Teflon material and plexiglass, and the outer diameter of the material used for the frame is 2 to 3 cm; the balance of the grid body is adjusted with an empty Teflon bottle; water spinach is selected as the plant, and the planting density is 50 Plant / m 2 The fixed connection shaft is constructed with a PVC pipe, its outer diameter is 5cm, and its length is 80cm. The vertical distance of the groove is 10cm. The bottom and sides of the plant entry grid frame are constructed of a mesh structure with a...

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Abstract

The invention relates to a reciprocating type plant grid system and an application thereof, belonging to the technical field of a rural non-point pollution treating process. The reciprocating type plant grid system is characterized by comprising a plant grid area (1), a water storage area (2) and a fixed joint shaft (3), wherein the bottom of the fixed joint shaft (3) is fixed in the water storage area (2); the fixed joint shaft (3) is provided with a sheathing part (6) which freely move up and down along the fixed joint shaft (3) and is connected with the plant grid area (1); and the self weight of the plant grid area (1) is more than or equal to the buoyancy force in sewage. The open-close state of the grid gate of the reciprocating type plant grid system automatically conducts the reciprocating motion along with change of the water level in a ditch. The system has the characteristics of simplicity, flexibility, beautiful appearance, small occupied area, convenient replacement and cleaning, good N and P removing effect, low operating cost, easy management and the like.

Description

technical field [0001] The invention relates to a farmland ditch non-point source pollutant reduction system that automatically opens and closes with water level changes and a construction method thereof, belongs to the technical field of agricultural non-point source pollutant reduction, and can be widely used in farmland ditches or rivers in villages and towns to effectively remove non-point source pollutants. source pollutants without impeding the flow of water bodies. Background technique [0002] Using bio-ecological restoration technology to effectively reduce agricultural non-point source pollutants is an important means to prevent and control water environmental pollution, represented by ecological slope protection technology. This technology can fix soil and water, green the landscape, and purify water quality; however, due to the influence of the distribution position, the ecological slope protection can only contact part of the water body along the flow direction....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34
Inventor 刘凌燕文明刘玉洪刘俊伟马惠群黄兴国
Owner HOHAI UNIV
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