Improved water quenching slag adsorbent and preparation method thereof

A technology for modifying water and adsorbents, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes. It can solve the problem of high cost of adsorbent treatment, achieve easy operation, reduce production costs, and improve adsorption capacity. Effect

Inactive Publication Date: 2010-11-10
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the adsorbents used to treat wastewater are mainly activated carbon and ion exchange resins, and the cost of these adsorbents is high.

Method used

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  • Improved water quenching slag adsorbent and preparation method thereof
  • Improved water quenching slag adsorbent and preparation method thereof
  • Improved water quenching slag adsorbent and preparation method thereof

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Embodiment 1

[0012] Embodiment 1: The raw material of the present invention is taken from the blast furnace water-quenched slag of the No. 4 blast furnace of Baotou Iron and Steel Group Company Ironworks. The preparation method is as follows: 1) The blast furnace water-quenched slag is repeatedly washed with water for 3-4 times, and then placed in an oven Dried at 100°C, thoroughly ground in a mortar, and sieved through a 100-mesh sieve. 2) Mix 100 g of blast furnace water-quenched slag pretreated in step 1) with 1.5 g of cerium sulfate and 2 g of ferric chloride, stir well, and fully wet the mixture with 80 g of water, stir evenly, and then fully The wetted mixture was dried in an oven at a temperature of 100°C. 3) Fully grind the dried mixture in step 2) evenly, and then sieve it through a 100-mesh sieve, and place the sieved mixture in a muffle furnace at 500° C. for 1-2 hours to obtain the obtained Modified water quenching slag adsorbent. Under the condition of pH=8, weigh 1 g of the...

Embodiment 2

[0013] Embodiment 2: The raw material of the present invention is taken from the blast furnace water-quenched slag of the No. 4 blast furnace of Baotou Iron and Steel Group Company Ironworks. The preparation method is as follows: 1) The blast furnace water-quenched slag is repeatedly washed with water for 3-4 times, and then placed in an oven Dried at 100°C, thoroughly ground in a mortar, and sieved through a 100-mesh sieve. 2) Mix 100 g of the raw water quenching slag pretreated in step 1) with 3 g of cerium sulfate and 4 g of ferric chloride, stir well, and fully wet the mixture with 85 g of water, stir evenly, and then fully wet the mixture 3) Use a mortar to fully grind the dried mixture in step 2) evenly, then pass it through a 100-mesh sieve for sieving, and place the sieved mixture in The modified water-quenched slag adsorbent is obtained by roasting in a muffle furnace at a temperature of 500° C. for 1-2 hours. Under the condition of pH=8, weigh 1 g of the prepared mo...

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Abstract

The invention relates to an improved water quenching slag adsorbent and a preparation method thereof, belonging to the treatment field of industrial wastewater. The improved water quenching slag adsorbent comprises the following components in weight percentage: 93.5%-96.7% of blast-furnace water quenching slag, 1.4%-2.8% of ceric sulfate and 1.9%-3.7% of ferric chloride. The preparation method comprises the following steps of: cleaning and washing the blast-furnace water quenching slag with water, drying and then sieving the grinded blast-furnace water quenching slag by using a 100-mesh sieve; mixing and uniformly stirring the processed blast-furnace water quenching slag with the ceric sulfate and the ferric chloride, wetting with water and then uniformly stirring; and drying, grinding and sieving by using the 100-mesh sieve, and then placing the sieved mixture in a muffle furnace for roasting 1-2 h at the temperature of 500 DEG C-600 DEG C to obtain the improved water quenching slag adsorbent. Due to the adoption of industrial wastes as raw materials, the improved water quenching slag adsorbent has the advantages of reduction of production cost, better processing effect and easy operation. Because the surface of the improved water quenching slag adsorbent is coated with a ferric and ceric coating, the specific surface area and the adsorbability of the improved water quenching slag adsorbent are improved, and the improved water quenching slag adsorbent can adsorb copper ions and ammonia nitrogen in water bodies at room temperature when the pH is 3-10.

Description

technical field [0001] The invention relates to a modified water quenching slag adsorbent and a preparation method thereof, belonging to the field of industrial waste water treatment. Background technique [0002] At present, the adsorbents used to treat wastewater are mainly activated carbon and ion exchange resins, and the cost of these adsorbents is high. Contents of the invention [0003] The invention provides a modified water-quenched slag adsorbent capable of effectively increasing the specific surface area of ​​the adsorbent, having strong adsorption capacity and low production cost and a preparation method thereof. [0004] Technical solution: The present invention uses blast furnace water-quenched slag as raw material, ferric chloride and cerium sulfate as modifiers, in terms of weight percentage: blast furnace water-quenched slag 93.5-96.7%, cerium sulfate 1.4-2.8%, ferric chloride 1.9-3.7%. [0005] The preparation method of modified water quenching slag adso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/08B01J20/30C02F1/28
Inventor 陈莉荣张连科贾飞虎李玉梅
Owner INNER MONGOLIA UNIV OF SCI & TECH
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