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Regenerated environment-friendly water purification brick and preparation method thereof

A water purification and environmental protection technology, applied in the field of recycled environmental protection water purification bricks and its preparation, to achieve the effect of reducing shrinkage cracking, reducing density and improving water purification efficiency

Active Publication Date: 2022-03-15
深圳市文浩环保再生有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve this defect, the application provides a recycled environmental protection water purification brick and its preparation method

Method used

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  • Regenerated environment-friendly water purification brick and preparation method thereof
  • Regenerated environment-friendly water purification brick and preparation method thereof
  • Regenerated environment-friendly water purification brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0047] Embodiment 1 is taken as an example below for description.

Embodiment 1

[0049] In Example 1, the recycled environmental protection water purification brick is prepared according to the following steps:

[0050] (1) This step is divided into an aging stage and a calcination stage, and immediately enters the calcination stage after the aging stage ends, and the steps of the aging stage and the calcination stage are as follows:

[0051] Aging stage: Mix 60kg deionized water and 6kg sodium lauryl sulfate evenly to obtain an aging liquid, mix the sludge with a moisture content of 5% and the aging liquid according to a weight ratio of 10:1, and then statically Placed for 30h to obtain aged sludge;

[0052] Calcination stage: put the aged sludge in the closed heating equipment, fill the heating chamber with nitrogen until the nitrogen exhausts the air in the heating chamber, then heat the aged sludge to 360°C, After holding at 360°C for 40 minutes, carbonized sludge was obtained;

[0053] (2) 30kg of carbonized sludge, 16kg of regenerated aggregate, 12...

Embodiment 6

[0061] The difference between this example and Example 3 is that the recycled environmental protection water purification brick is prepared according to the following steps:

[0062] (1) This step is divided into an aging stage and a calcination stage, and immediately enters the calcination stage after the aging stage ends, and the steps of the aging stage and the calcination stage are as follows:

[0063] Aging stage:

[0064] ① Seal the sludge with a moisture content of 63% at room temperature for 8 days to obtain fermented sludge;

[0065] ②Spray the sodium carbonate solution into the fermented sludge according to the consumption of 40g of sodium carbonate per kg of fermented sludge, and then perform 7 freeze-thaw cycles on the fermented sludge in the temperature range of -25°C to 15°C, freeze-thaw The highest temperature of the cycle is 15°C, the lowest temperature is -25°C, and the heating rate and cooling rate are both 5°C / h. After the freeze-thaw cycle is over, the fer...

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Abstract

The invention relates to the technical field of regenerated bricks, and particularly discloses a regenerated environment-friendly water purification brick and a preparation method thereof. The regenerated environment-friendly water purification brick is prepared by mixing a brick making blank material with water and then molding and curing at normal temperature, the brick making blank material comprises the following components in parts by weight: 30-50 parts of carbonized sludge, 12-16 parts of building residue soil, 16-20 parts of regenerated aggregate and 28-32 parts of Portland cement, the carbonized sludge is sludge which is subjected to dehydration and carbonization treatment at 350-370 DEG C, and the regenerated aggregate is sludge which is subjected to dehydration and carbonization treatment at 350-370 DEG C; the recycled aggregate is waste concrete subjected to crushing treatment, and the particle size of the recycled aggregate is 5mm-10mm. According to the water purification brick, carbon particles carried by the carbonized sludge can adsorb pollutants in water, and the water purification brick is prepared at normal temperature, is low in density and easy for water to permeate, and has a better water purification effect compared with a water purification brick prepared in a sintering mode.

Description

technical field [0001] The application relates to the technical field of regenerated bricks, more specifically, it relates to a regenerated environment-friendly water purification brick and a preparation method thereof. Background technique [0002] Sludge is the main waste produced by sewage treatment plants. It is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, and colloids. There are many ways to utilize sludge as a resource, and one of the feasible methods is to use sludge together with other solid wastes to produce recycled bricks. In the production of recycled bricks, because the large amount of organic matter contained in the sludge will make the bricks unable to be formed, it is usually necessary to remove the organic matter under high temperature conditions. [0003] There is a water purification brick in the related art, which includes the following raw materials in parts by weight: 50-70 parts of aged slud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/08C04B38/00C04B20/04C04B20/02C04B18/04
CPCC04B28/04C04B38/08C04B38/00C04B20/04C04B20/023C04B20/02C04B18/0472C04B2111/00017C04B18/16C04B18/10Y02W30/91
Inventor 章永明
Owner 深圳市文浩环保再生有限公司
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