Ceramsite water permeable brick with interception effect on contaminants, and preparation method of ceramsite water permeable brick

A technology of pollutants and permeable bricks, applied in ceramic products, applications, clay products, etc., can solve the problems of large difference between surface and base materials, cumbersome preparation methods, and no further verification of water purification effect, so as to reduce sludge treatment Disposal cost, large controllable range, and good water permeability

Inactive Publication Date: 2019-01-25
BEIJING VOCATIONAL COLLEGE OF AGRI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] A small amount of heavy metals in the medium can prevent groundwater pollution, but the patent uses zeolite-modified ceramsite, the raw materials of the surf

Method used

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  • Ceramsite water permeable brick with interception effect on contaminants, and preparation method of ceramsite water permeable brick
  • Ceramsite water permeable brick with interception effect on contaminants, and preparation method of ceramsite water permeable brick

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Example Embodiment

[0069] Example 1

[0070] In order to achieve the above objective, the technical solution adopted by the present invention is:

[0071] 1. The preparation method of ceramsite water-permeable bricks with interception effect on pollutants includes the following steps:

[0072] (1) Preparation of surface layer ceramsite: it is composed of 50% sludge (40% moisture content), 20% coal gangue, and 30% construction concrete waste. Crush and pulverize construction waste (construction concrete waste) and coal gangue (300 mesh), press dry the sludge, mix and stir, stir for 10 minutes, rotate at 30-100rpm, and pressurize (500kg / cm) 2 ) Forming, sintering at 1100-1200℃ for 30 minutes, cooling to room temperature, sieving to obtain 1mm surface layer ceramsite.

[0073] (2) Preparation of grass-roots ceramsite: It is composed of 40% sludge with 50% moisture content, 20% coal gangue, and 30% construction concrete waste. Crush and grind the construction waste (construction concrete waste), press the ...

Example Embodiment

[0088] Example 2

[0089] 1. The preparation method of ceramsite water-permeable bricks with trapping effect on pollutants is similar to Example 1, except that it includes the following steps:

[0090] (1) Preparation of surface layer ceramsite: It is composed of 40% sludge (50% moisture content), 30% coal gangue, and 30% construction waste bricks. The waste building bricks and coal gangue are crushed and pulverized (300 mesh), the sludge is pressed dry, mixed and stirred, and then formed under pressure, sintered at 1200°C for 30 minutes, cooled to room temperature, and sieved to obtain surface ceramsite with a particle size of 2 mm.

[0091] (2) Preparation of grass-roots ceramsite: It is composed of 50% sludge (40% moisture content), 20% coal gangue, and 30% construction concrete waste. The construction waste is pulverized and ground, the sludge is pressed to dry, then mixed and stirred and then pressurized to form, mixed and stirred and then pressurized to form, sintered at 1200°...

Example Embodiment

[0105] Example 3

[0106] The difference from Example 1 is that the reinforcing agent in this example is mixed with the following raw materials by weight: 30 parts of aluminum sulfate, 20 parts of silica, 18 parts of alumina, 7 parts of limestone powder, 12 parts of fly ash Parts, 13 parts of naphthalene sulfonate, 15 parts of cement impermeable and waterproof agent.

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Abstract

The invention discloses a ceramsite water permeable brick with an interception effect on contaminants, and a preparation method of the ceramsite water permeable brick. The ceramsite water permeable brick is good in water permeability and air permeability, high in bending strength and compressive strength, and large in water permeation coefficient; and through the brick, rain water can rapidly permeate into the ground to supplement soil water and underground water, maintain soil humidity and improve the existence condition of plants and soil microorganisms on the urban ground, and accordingly,urban drainage and flood control pressure can be relieved, and the brick has good effects on preventing pollution of public waters and treating sewage. In addition, according to the ceramsite water permeable brick, base layer ceramsite and surface layer ceramsite are prepared from building waste, so that the waste is turned into wealth, resources are saved, the contaminants such as COD, Pb<2+>, Zn<2+>, Cu<2+>, Cd<2+> and Cr<2+> in a water body can be subjected to adsorption and purification treatment, and thus, both purification of the water body and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a ceramsite permeable brick with interception effect on pollutants and a preparation method thereof. Background technique [0002] Permeable bricks originated in the Netherlands. During the process of building a city from the sea, the Dutch found that the ground after the seawater was drained would cause continuous land subsidence due to long-term lack of contact with water. Once the dykes on the coastline are washed away, the seawater will quickly rush to cities much lower than sea level and submerge the entire coastal city. In order to prevent the ground from sinking, the Dutch made a small pavement brick with a length of 200 mm, a width of 100 mm, and a height of 50 or 60 mm, which was laid on the street surface, and a gap of 2 mm was reserved between the bricks. In this way, when it rains, the rainwater will seep into the ground through the gaps between the bricks...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B38/00C04B38/08C04B28/00E01C5/00E01C11/22
CPCC04B28/00C04B33/132C04B33/1321C04B33/1324C04B38/009C04B2111/00284C04B2111/0075C04B2111/40E01C5/00E01C11/225C04B18/027C04B22/148C04B24/20C04B18/08C04B14/303C04B14/28C04B14/06C04B2103/65C04B38/08Y02P40/60
Inventor 刘俊峰张晓然高秀清吴小苏刘诚斌何晓龙苏春宏
Owner BEIJING VOCATIONAL COLLEGE OF AGRI
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