Active carbon for deeply purifying drinking water and preparation method thereof

A technology of activated carbon and carbonization, applied in inorganic chemistry, silicon compounds, adsorbed water/sewage treatment, etc., can solve the problems of ineffective utilization of coal tar resources, high production cost, complicated production process, etc., and achieve the function of deep purification of drinking water. , low cost and large adsorption capacity

Active Publication Date: 2012-05-02
CCTEG CHINA COAL RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The production of columnar activated carbon has the following problems: 1. The production process is complicated, the crushing yield is low, and the production cost is relatively high; 2. Since coal tar must be used as a binder, coal tar resources cannot be effectively used, and the production process has an impact on the environment. Big
Since the production of briquette activated carbon requires good raw material coal formability, there is no special briquette activated carbon for water purification prepared from anthracite in China.

Method used

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  • Active carbon for deeply purifying drinking water and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, the preparation of activated carbon for water purification

[0032] (1) Crushing: crush anthracite and coking coal into particles with a particle size of 5mm, then mix the anthracite and coking coal in a ratio of 7:2.5 by mass to obtain a mixture; put the above mixture through a ball milling mechanism powder to obtain mixed powder, wherein more than 99% of the mixed powder can pass through a 200-mesh sieve;

[0033] (2) Briquetting molding: mix asphalt with the above-mentioned mixed powder, wherein the mass and fraction ratio of the amount of asphalt added to the anthracite is 0.7:7, and then use the double-roller high-pressure molding equipment to mix the obtained powder The material is subjected to dry briquetting under a pressure of 20MPa to obtain a briquette;

[0034] (3) Carbonization: Carbonize the briquette material obtained above in an externally heated rotary furnace to obtain an activated material. The final temperature of carbonization is 580°...

Embodiment 2

[0037] Embodiment 2, the preparation of gac for water purification

[0038] (1) Crushing: crush anthracite and coking coal into particles with a particle size of 3mm, then mix the anthracite and coking coal in a ratio of 7:1 to obtain a mixture; put the above mixture through a ball milling mechanism powder to obtain mixed powder, wherein more than 99% of the mixed powder can pass through a 200-mesh sieve;

[0039] (2) Briquetting molding: mix asphalt with the above-mentioned mixed powder, wherein the mass and number ratio of the amount of asphalt added to anthracite is 0.3:7, and then use the roller high-pressure molding equipment to mix the obtained powder The material is subjected to dry briquetting under a pressure of 30MPa to obtain a briquette;

[0040] (3) Carbonization: Carbonize the briquette material obtained above in an externally heated rotary furnace to obtain an activated material, the final temperature of carbonization is 500°C, the controlled heating rate is 6°...

Embodiment 3

[0043] Embodiment 3, the preparation of gac for water purification

[0044] (1) Crushing: crush anthracite and coking coal into particles with a particle size of 5mm, then mix the anthracite and coking coal in a ratio of 8:2 to obtain a mixture; put the above mixture through a ball milling mechanism powder to obtain mixed powder, wherein more than 99% of the mixed powder can pass through a 200-mesh sieve;

[0045] (2) Briquetting molding: mix asphalt with the above-mentioned mixed powder, wherein the mass and number ratio of the amount of asphalt added to anthracite is 0.5:8, and then use the roller high-pressure molding equipment to mix the powder The material is subjected to dry briquetting under a pressure of 25MPa to obtain a briquette;

[0046] (3) Carbonization: Carbonize the briquette material obtained above in an externally heated rotary furnace to obtain an activated material, the final temperature of carbonization is 650°C, the controlled heating rate is 8°C / min, an...

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Abstract

The invention discloses active carbon for deeply purifying drinking water and a preparation method thereof. The method comprises the following steps: (1) mixing anthracite and coking coal, and successively crushing and milling to obtain mixed powder; (2) briquetting the mixed powder to obtain a block material; and (3) carrying out carbonization and activation on the block material to obtain the active carbon. The active carbon for deeply purifying drinking water and the preparation method using anthracite as a main raw material aim at the disadvantages of products and production methods in the prior art and combine the domestic current situation of raw material coal resources. The prepared active carbon has the advantages of good performance, low cost, and good effect of deeply purifying the drinking water, and is top grade active carbon for deeply purifying drinking water.

Description

technical field [0001] The invention relates to an activated carbon and a preparation method thereof, in particular to an activated carbon for drinking water purification and a preparation method thereof. Background technique [0002] my country is currently one of the 13 countries with the poorest water in the world. According to the latest "China Environmental Performance Evaluation" report released by the Organization for Economic Cooperation and Development, more than 75% of the water flowing through Chinese cities is not suitable for drinking, and more than 30% The water quality of the detected river belongs to the inferior V category. With the development of industry, the degree of pollution of urban drinking water sources is increasing. At the same time, with the improvement of living standards, people's requirements for drinking water quality and drinking water quality standards are becoming more and more stringent. [0003] Due to its large specific surface area and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/08B01J20/10C02F1/28
Inventor 梁大明王鹏孙仲超吴涛李艳芳熊银武傅翔郭良元董卫果文芳李兰廷李雪飞
Owner CCTEG CHINA COAL RES INST
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