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Ceramic particle for water treatment and preparation thereof

A technology of ceramic particles and water treatment, which is applied in the fields of ceramic products, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of low content of suspended active microorganisms, difficult control of product qualification rate, slow microbial film formation, etc. problems, to achieve uniform and rich distribution of pores, low cost of raw materials, and fast microbial film formation

Inactive Publication Date: 2011-05-18
商士强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the ceramsite in the prior art has the following deficiencies: first, a large amount of auxiliary materials are required in the manufacturing process, such as pore-forming agents, adhesives, etc., the cost is high, and the product qualification rate is difficult to control; Long time (several hours) high-temperature calcination (about 1000°C), high energy consumption and waste of energy; third, slow microbial film formation, low content of attached and suspended active microorganisms; fourth, low hardness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0041] formula:

[0042] Granite powder 18Kg Bentonite 78Kg Coke powder 6Kg

[0043] Sawdust 12Kg Coal powder 8Kg.

[0044] Preparation:

[0045] a. Separately crush granite, bentonite, coke powder, sawdust, and coal powder into fine powders with a particle size not greater than 100 μm;

[0046] b. Mix the powder obtained in step a according to the formula ratio, and stir evenly;

[0047] c. Send the evenly mixed raw material powder into the ball forming tray to make spherical particles with a particle size of 2-3mm;

[0048] d. Spherical particles are calcined in a kiln to obtain the finished product. The drying and preheating process is carried out at 150-500°C for 22 minutes; the decomposition process is carried out at 500-600°C for 13 minutes; the high-temperature calcination process is carried out at 850°C for 3.5 minutes.

preparation Embodiment 2

[0050] formula:

[0051] Granite powder 25Kg Bentonite 70Kg Coke powder 7.5Kg

[0052] Sawdust 6Kg Coal powder 4Kg.

[0053] Preparation:

[0054] a. Separately crush granite, bentonite, coke powder, sawdust, and coal powder into fine powders with a particle size not greater than 100 μm;

[0055] b. Mix the powder obtained in step a according to the formula ratio, and stir evenly;

[0056] c. Send the evenly mixed raw material powder into the ball forming tray to make spherical particles with a particle size of 3-5mm;

[0057] d. The spherical particles are calcined in the kiln to obtain the finished product. The drying and preheating process is carried out at 200-550°C for 25 minutes; the decomposition process is carried out at 550-650°C for 15 minutes; the high-temperature calcination process is carried out at 870°C for 4 minutes.

preparation Embodiment 3

[0059] formula:

[0060] Granite powder 20Kg Bentonite 70Kg Coke powder 7Kg

[0061] Sawdust 10Kg Coal powder 6Kg.

[0062] Preparation:

[0063]a. Separately crush granite, bentonite, coke powder, sawdust, and coal powder into fine powders with a particle size not greater than 100 μm;

[0064] b. Mix the powder obtained in step a according to the formula ratio, and stir evenly;

[0065] c. Send the evenly mixed raw material powder into the ball forming tray to make spherical particles with a particle size of 6-8mm;

[0066] d. The spherical particles are calcined in the kiln to obtain the finished product. The drying and preheating process is carried out at 200-600°C for 25 minutes; the decomposition process is carried out at 600-700°C for 15 minutes; the high-temperature calcination process is carried out at 900°C for 5 minutes.

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Abstract

The invention discloses a ceramic particle for water treatment and a preparation method thereof, belonging to the production field of water treatment filter material. The ceramic particle is made from granite powder, bentonite, coke powder, sawdust and pulverized coal in a certain proportion. Compared with the prior art, the ceramic particle has the characteristics of good water purifying effect,low production cost, little energy consumption, and so on, and can be widely applied to sewage treatment in various fields.

Description

technical field [0001] The invention relates to a water treatment material, in particular to a ceramic particle for water treatment and a preparation method thereof. Background technique [0002] Ceramsite is a kind of water treatment filter material commonly used at present, and they are all porous irregular spherical particles. In the process of water treatment, biofilm can be formed on the surface and inner cavity of the ceramsite. When the sewage flows through the ceramsite filter layer, the biological suspended particles in the water are removed through biosorption and biooxidation. However, most of the ceramsite in the prior art has the following deficiencies: first, a large amount of auxiliary materials are required in the manufacturing process, such as pore-forming agents, adhesives, etc., the cost is high, and the product qualification rate is difficult to control; Long time (several hours) high-temperature calcination (about 1000°C) is required, which results in h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B33/13C02F3/10
CPCY02W10/10
Inventor 商士强
Owner 商士强
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