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Industrial wastewater adsorbent and preparation method thereof

An industrial wastewater and adsorbent technology, which is applied in chemical instruments and methods, adsorbed water/sewage treatment, other chemical processes, etc., can solve the problems of high treatment cost and high price of activated carbon adsorbent, and achieve low production cost. , high environmental protection, good adsorption effect

Inactive Publication Date: 2012-10-03
武钢集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The current industrial water treatment adsorbents are mainly activated carbon adsorbents. The cost of using activated carbon adsorbents is high. At present, the cost of high-quality activated carbon is 4,000 yuan / ton. Therefore, high prices have always been the bottleneck for the use of activated carbon adsorbents in the industrial wastewater industry.

Method used

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  • Industrial wastewater adsorbent and preparation method thereof
  • Industrial wastewater adsorbent and preparation method thereof
  • Industrial wastewater adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Place the steel slag powder at 400°C for 3 hours, then finely grind it into 500 mesh to make steel slag fine powder; take 80% steel slag fine powder and 5% water according to the weight percentage and stir at 200r / min for 12min; The agitator; then add 1% hydrogen peroxide and 3% calcium hypochlorite foaming agent to the agitator by weight percentage to obtain a mixture; pelletize the mixture, and the 1mm diameter pellet is the adsorbent.

Embodiment 2

[0027] Place the steel slag powder at 600°C for 2 hours, then finely grind it into 300 mesh to make steel slag fine powder; take 95% steel slag fine powder and 2% water according to the weight percentage and stir at 100r / min for 12min; The agitator; then add 2% hydrogen peroxide and 1% calcium hypochlorite foaming agent to the agitator by weight percentage to obtain a mixture; the mixture is pelletized, and the diameter of the 2mm ball is the adsorbent.

Embodiment 3

[0029] Place the steel slag powder at 500°C for 2 hours, then finely grind it into 400 mesh to make steel slag fine powder; take 92% steel slag fine powder and 2% water according to the weight percentage and stir at 100r / min for 12min; 6% hydrogen peroxide foaming agent is added to the stirring material by weight percentage to obtain a mixture; the mixture is pelletized, and the diameter of the 2mm pellet is the adsorbent.

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Abstract

The invention discloses an industrial wastewater adsorbent and a preparation method of the industrial wastewater adsorbent. The industrial wastewater adsorbent comprises the following chemical components by weight percent: 80-95% of fine steel slag powder, 2-15% of water and 2-6% of foaming agent. The preparation method of the industrial wastewater adsorbent comprises the steps of: taking 80-95% of fine steel slag powder and 2-15% of water according to the weight ratio and blending for 8-12min at 100-200r / min; obtaining the blend mixture blended uniformly; adding 2-6% of the foaming agent into the blend mixture according to weight ratio; obtaining the mixture; pelletizing the mixture; and obtaining small pellets, namely the adsorbent. According to the adsorbent and the method, are highly environmental protection is high and the resource utilization and high added value application of the steel slag are realized. Since the absorbent provided by the invention uses the steel slag as the main raw material, the resource utilization of the steel slag is realized and the goal of treating wastes by wastes in the metallurgical industry is also realized.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and specifically refers to an industrial waste water adsorbent and a preparation method thereof. Background technique [0002] The current industrial water treatment adsorbents are mainly activated carbon adsorbents. The cost of using activated carbon adsorbents is high. At present, the cost of high-quality activated carbon is 4,000 yuan / ton. Therefore, high prices have always been the bottleneck for the use of activated carbon adsorbents in the industrial wastewater industry. At the same time, the iron and steel industry produces a large amount of steel slag to be used as a resource. Therefore, how to use steel slag as a raw material to develop a cheap adsorbent to replace activated carbon adsorbent has always been a research hotspot. [0003] At present, the Chinese patent whose publication number is CN101264441 has reported a kind of modified steel slag adsorbent and its preparation method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/10B01J20/30B01J20/28C02F1/28B09B3/00
Inventor 刘尚超薛改凤段建峰张垒王丽娜吴亮军刘璞张楠付本全
Owner 武钢集团有限公司
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