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Method for manufacturing heavy metal ion adsorbent by using orange peel

A technology of heavy metal ions and a production method, which is applied in the field of making heavy metal ion adsorbents by using orange peel, can solve the problems of difficulty in mass production, difficult to popularize and use in a large area, complicated desorption steps, etc., and achieves unique chemical composition, environmental protection, Source-rich effects

Active Publication Date: 2014-07-02
薛松晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods have a certain effect on the treatment of heavy metal pollution, but there are also disadvantages such as high treatment cost, cumbersome desorption steps, difficult recycling and secondary pollution, and it is difficult to meet the requirements of mass production, so the use is subject to certain restrictions. Easy to promote and use on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of the heavy metal ion adsorbent of the present invention is as follows: the orange peel with a water content of 10% is crushed into 20 mesh particles; Treatment; according to the mass ratio of bacterial liquid: water: orange peel = 1:300:800, mix evenly, then put it into the fermentation room for anaerobic fermentation for 72 hours; dry it at 40°C to make the water content reach 10%. Obtain the heavy metal ion adsorbent, then carry out sealed packaging and sell.

[0033] Among them, the mass ratio of Lactobacillus acidophilus and Thiobacillus ferrooxidans is 1:2; the concentration is 2.9 billion live bacteria per milliliter.

Embodiment 2

[0035] The preparation method of the heavy metal ion adsorbent of the present invention is as follows: the orange peel with a water content of 15% is pulverized into 40-mesh granules; Treatment; according to the mass ratio of bacterial liquid: water: orange peel = 5:400:9000, mix evenly, then put it into the fermentation room for anaerobic fermentation for 100 hours; dry it at 60°C to make the water content reach 15%. Obtain the heavy metal ion adsorbent, then carry out sealed packaging and sell.

[0036] Among them, the mass ratio of Lactobacillus acidophilus and Thiobacillus ferrooxidans is 1:3; the concentration is 2.5 billion live bacteria per milliliter.

Embodiment 3

[0038] The preparation method of the heavy metal ion adsorbent of the present invention is as follows: the orange peel with a water content of 20% is pulverized into 80-mesh granules; Treatment; according to the mass ratio of bacterial liquid: water: orange peel = 10: 500: 1000, mix evenly, then put it into the fermentation room for anaerobic fermentation for 240 hours; dry it at 120°C to make the water content reach 22%. Obtain the heavy metal ion adsorbent, then carry out sealed packaging and sell.

[0039] Wherein, the mass ratio of Lactobacillus acidophilus and Thiobacillus ferrooxidans is 2:2. The concentration is 2.2 billion live bacteria per milliliter.

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Abstract

The invention discloses a method for manufacturing a heavy metal ion adsorbent by using orange peel. The manufacturing method comprises the following steps: grinding orange peel into particles; carrying out biochemical pretreatment on the orange peel by using mixed bacterial liquid consisting of lactobacillus acidophilus and ferrous oxide thiobacillus; then placing in a fermentation chamber for anaerobic digestion; and drying to obtain the heavy metal ion adsorbent. In comparison with a traditional processing method, the biological adsorbing method has the following advantages that (1) energy is saved and the processing efficiency is high; (2) metal can be selectively removed at low concentration; (3) the pH value and temperature condition range during operation is wide; (4) heavy metal can be easily separated and recycled; (5) the adsorbent can be easily recycled. The orange peel as the biological adsorbent provides an economical and feasible technology for treatment of heavy metal wastewater and soil, is wide in material source and low in cost and can achieve the effect of treating waste with waste. With continued in-depth study of orange peel, the method has wide development prospect in industrial application to purification of heavy metal wastewater and soil.

Description

technical field [0001] The invention belongs to the technical field of heavy metal ion adsorbents, and relates to a method for modifying orange peels by using biological fermentation technology, in particular to a method for making heavy metal ion adsorbents by using orange peels. Background technique [0002] At present, the methods to control heavy metal pollution mainly include: mineral material adsorption, liquid adsorbent extraction, ion exchange, lactic acid bacteria adsorption, and chelating agent chelation. These methods have a certain effect on the treatment of heavy metal pollution, but there are also disadvantages such as high treatment cost, cumbersome desorption steps, difficult recycling and secondary pollution, and it is difficult to meet the requirements of mass production, so the use is subject to certain restrictions. It is easy to promote and use in a large area. The biosorption method has obvious economic and technical advantages, and is an adsorbent sep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/62
Inventor 薛松晓
Owner 薛松晓
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