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Adsorbent

An adsorbent and solubility technology, which is applied in the direction of adsorption of water/sewage treatment, water/sludge/sewage treatment, water pollutants, etc., can solve the problems that are not suitable for large-scale application, and achieve low cost, simple process, and raw materials Source Rich Effects

Inactive Publication Date: 2017-01-04
廖芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, effective separation processes for removing heavy metal ions in sewage include: precipitation, ion exchange, electrochemical treatment, membrane technology, evaporative solidification, reverse osmosis and electrodialysis, etc., but the application of these technologies is sometimes limited by technology and economy. In recent years, the method of removing heavy metals through the adsorption of living organisms has attracted attention. This method mainly uses hyperaccumulated plants, algae, and microorganisms to have a large adsorption capacity for heavy metals to remove heavy metals in wastewater, but using living organisms to remove heavy metals Treatment of sewage is limited by the biomass and growth characteristics of the organism itself, so so far this type of method is not suitable for large-scale applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] After cleaning the pod fern with clean water, put it into an oven at 50°C and dry it to a constant weight, then crush the dry matter with a pulverizer, pass through a 200-mesh sieve, weigh 10g of the powder and put it into a container, Then pour isopropanol with a solubility of 15% into the container, and keep stirring to make it fully react. After 12 hours, filter the solution and wash it with distilled water. The cleaned product is dried in a drying oven at 50°C. , after drying for 20 hours, put the dried material back into the container, then pour 0.1mol / L potassium hydroxide solution, and keep stirring to make it fully react, filter the solution after 2 hours, and clean it with distilled water. The product was dried in a drying oven at 50°C. After drying for 20 hours, the dried product was put back into the container, and then poured into 0.5mol / L citric acid solution. After stirring for 4 hours, the solution was filtered , and washed with distilled water until the ...

Embodiment 2

[0027] After cleaning the pod fern with clean water, put it into an oven at 60°C and dry it to a constant weight, then crush the dry matter with a pulverizer, pass through a 100-mesh sieve, weigh 20g of the powder and put it into a container, Then pour 18% isopropanol into the container, and keep stirring to make it fully react. After 13 hours, filter the solution and wash it with distilled water. The cleaned product is dried in a drying oven at 55°C. , after drying for 15 hours, put the dried product back into the container, then pour 0.5mol / L potassium hydroxide solution, and keep stirring to make it fully react, filter the solution after 1 hour, and clean it with distilled water. The product was dried in a drying oven at 55°C. After drying for 15 hours, the dried product was put back into the container, and then poured into a 1mol / L citric acid solution. After stirring and reacting for 2 hours, the solution was filtered. And wash it with distilled water until the solution i...

Embodiment 3

[0029] After cleaning the pod fern with clean water, put it into an oven at 70°C and dry it to constant weight, then pulverize the dry matter with a pulverizer, pass through a 100-mesh sieve, weigh 20g of the powder and put it into a container, Then pour isopropanol with a solubility of 20% into the container, and keep stirring to make it fully react. After 15 hours, filter the solution and wash it with distilled water. The cleaned product is dried in a drying oven at 60°C. , after drying for 10 hours, put the dried material back into the container, then pour 0.5mol / L potassium hydroxide solution, and keep stirring to make it fully react. After 1 hour, filter the solution and wash it with distilled water. The product was dried in a drying oven at 60°C. After drying for 10 hours, the dried product was put back into the container, and then poured into a 1mol / L citric acid solution. After stirring for 2 hours, the solution was filtered. And wash it with distilled water until the ...

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Abstract

The invention discloses a matteuccia struthiopteris-modified adsorbent and a preparation method thereof. The matteuccia struthiopteris is taken as the raw material and the treating reaction technique utilizing isopropanol, potassium hydroxide solution and citric acid solution is adopted for modifying and preparing a biomass adsorbent. The method has the advantages that the raw material source is rich, the cost is low, the environment is protected and the application prospect is wide.

Description

technical field [0001] The invention relates to an adsorbent, in particular to an adsorbent and a process prepared by modifying a pod fern plant as a raw material, and belongs to the field of adsorbent materials. Background technique [0002] With the continuous development of industrialization, heavy metal pollution is becoming more and more serious. Since heavy metals cannot be degraded by microorganisms, they can only undergo mutual transformation between various forms in the environment. Therefore, it is often more difficult to eliminate heavy metal pollution. It will be enriched in the body of the human body, leading to various diseases and disorders of the body, and extremely harmful to the organism. [0003] At present, effective separation processes for removing heavy metal ions in sewage include: precipitation, ion exchange, electrochemical treatment, membrane technology, evaporative solidification, reverse osmosis and electrodialysis, etc., but the application of t...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J2220/4825B01J2220/485C02F1/286C02F2101/20
Inventor 廖芳
Owner 廖芳
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