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A lightweight porous ecological brick that can float on the water surface and its preparation method

An ecological brick, lightweight technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as lack of water purification function, save labor maintenance costs, use Convenience and long hydraulic retention time

Inactive Publication Date: 2018-05-29
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many types of floating beds widely used in structure, arrangement and shape, and various ecological floating beds with enhanced purification capabilities are also emerging, but most of their floating carriers are foam plastics, bamboo, engineering plastics, etc. Made of lightweight or hollow materials, the floating carrier only provides buoyancy and plant growth area restriction functions, and does not have any water purification functions

Method used

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  • A lightweight porous ecological brick that can float on the water surface and its preparation method
  • A lightweight porous ecological brick that can float on the water surface and its preparation method
  • A lightweight porous ecological brick that can float on the water surface and its preparation method

Examples

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Effect test

Embodiment 1

[0038] like Figure 1~Figure 5 As shown, a lightweight porous ecological brick that can float on the water surface includes a porous matrix 5, foam particles 6, planting holes 9, seeds 7, cotton balls 8 and a protective layer 3. The porous matrix 5 is a cuboid, and the surface of the polyurethane foam 14 is wrapped with a concrete layer structure. The foamed particles 6 are embedded in the porous matrix 5, the planting holes 9 are parallel to each other, the cotton balls 8 and the seeds 7 are placed in the planting holes 9, and the surface of the brick body is covered with a protective layer 3. The protective layer 3 is non-woven fabric. The foamed particles 6 are expandable polystyrene particles with a particle diameter of 1.5mm. The porosity of the polyurethane foam 14 is 15PPI, and 15PPI means that the average pore diameter is 1.69mm.

[0039] Mold comprises the outer mold 12 that is used to place described polyurethane foam 14, and described outer mold 12 is the square ...

Embodiment 2

[0047] like Figure 1~Figure 5 As shown, a lightweight porous ecological brick that can float on the water surface includes a porous matrix 5, foam particles 6, planting holes 9, seeds 7, cotton balls 8 and a protective layer 3. The porous matrix 5 is a cuboid, and the surface of the polyurethane foam 14 is wrapped with a concrete layer structure. The foamed particles 6 are embedded in the porous matrix 5, the planting holes 9 are parallel to each other, the cotton balls 8 and the seeds 7 are placed in the planting holes 9, and the surface of the brick body is covered with a protective layer 3. The protective layer 3 is non-woven fabric. The foamed particles 6 are expandable polystyrene particles with a diameter of 1 mm. The porosity of the polyurethane foam 14 is 20PPI, and 20PPI means that the average pore diameter is 1.27mm.

[0048] Mold comprises the outer mold 12 that is used to place described polyurethane foam 14, and described outer mold 12 is the square pipe of op...

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Abstract

The invention discloses a lightweight porous ecological brick capable of floating on a water surface and a preparation method of the lightweight porous ecological brick. The lightweight porous ecological brick is characterized by comprising a porous substrate (5), wherein foaming particles (6) are inlaid in pores of the porous substrate (5), and a plurality of planting holes (9) are formed in the porous substrate (5) in a penetrating way from top to bottom; the surface of the porous substrate (5) is covered with a protective layer (3). The lightweight porous ecological brick capable of floating on the water surface provided by the invention has the advantages of light weight, low density and large specific surface area, and can float on the water surface to be used as a growth carrier of an aquatic plant, a biological film formed on the surface of the pore has a very good water purification effect, which is combined with an absorbing purification effect of plant roots, so that the water purification efficiency is 2 to 3 times larger than that of an ordinary aquatic plant.

Description

technical field [0001] The invention relates to a lightweight porous ecological brick that can float on the water surface and a preparation method thereof, belonging to the technical field of environmental protection materials. Background technique [0002] With the increase of regional population density and the rapid development of social economy, the discharge of domestic and industrial sewage is increasing rapidly, and a large amount of untreated or incompletely treated sewage is directly discharged into rivers, lakes and other water bodies, resulting in the deterioration of the water quality of rivers and lakes. General deterioration. In rural areas, the excessive use of agricultural inputs such as chemical fertilizers and pesticides, and the unreasonable disposal of agricultural waste such as livestock and poultry manure, crop straw, and farmland film residues have led to increasingly serious agricultural non-point source pollution and increased the risk of soil and wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C04B38/08C04B28/02C04B14/06C04B14/42C04B16/08C04B24/38
CPCC02F3/32C04B28/02C04B14/068C04B14/42C04B16/08C04B24/383C04B38/08
Inventor 饶磊王沛芳王超钱进侯俊
Owner HOHAI UNIV