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A method for making heavy metal filtration and adsorption profiles using biological materials

A biological material and biological adsorption technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, water pollutants, etc., can solve the problems of increased use cost and inconvenience, and achieve the effect of avoiding cost increase

Active Publication Date: 2020-11-06
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering the inconvenience of powder granular biosorption materials, it actually increases the cost of use in a disguised form. Therefore, how to improve it within a reasonable production cost range to make it convenient for people to use is really a very important thing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush it and sieve it into particles with a particle size of less than 2mm; soak it in 50°C warm water (the liquid / solid mass ratio is controlled at 10), every interval After 2 hours, turn it once, and after 1 day, change the water and continue soaking. After 5 rounds of repeated operations, drain the water until dry and set aside; take the above materials and soak them in 40°C food-grade 2% sodium carbonate solution (liquid / solid mass The ratio is controlled at 1), turning once every 2 hours, and after 1 day, change the acid solution and continue to soak. After repeating this operation for 5 rounds, drain until dry and set aside. Soak the granular material obtained through this round of treatment in a solution containing 0.10 mol / L sodium bicarbonate at 35°C (control the liquid / solid mass ratio at 3), and turn it every 2 hours to make it fully react, 1 After three days, change the ...

Embodiment 2

[0025] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush it and sieve it into particles with a particle size of less than 2mm; soak it in 50°C warm water (the liquid / solid mass ratio is controlled at 10), every interval After 2 hours, turn it once, and after 1 day, change the water and continue soaking. After 5 rounds of repeated operations, drain the water until dry and set aside; take the above materials and soak them in 40°C food-grade 2% sodium carbonate solution (liquid / solid mass The ratio is controlled at 1), turning once every 2 hours, and after 1 day, change the acid solution and continue to soak. After repeating this operation for 5 rounds, drain until dry and set aside. Soak the granular material obtained through this round of treatment in a solution containing 0.30mol / L HCl at 35°C (the liquid / solid mass ratio is controlled at 3), and turn it every 2 hours to allow it to fully react. After 1 day, Change 5% sodium bicarbo...

Embodiment 3

[0027] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush it and sieve it into particles with a particle size of less than 2mm; soak it in 50°C warm water (the liquid / solid mass ratio is controlled at 10), every interval After 2 hours, turn it once, and after 1 day, change the water and continue soaking. After 5 rounds of repeated operations, drain the water until dry and set aside; take the above materials and soak them in 40°C food-grade 2% sodium carbonate solution (liquid / solid mass The ratio is controlled at 1), turning once every 2 hours, and after 1 day, change the acid solution and continue to soak. After repeating this operation for 5 rounds, drain until dry and set aside. Soak the granular material obtained through this round of treatment in a solution containing 0.30mol / L HCl at 35°C (the liquid / solid mass ratio is controlled at 3), and turn it every 2 hours to allow it to fully react. After 1 day, Change 5% sodium bicarbo...

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Abstract

A method for producing heavy metal filtration and adsorption profiles by using biological materials belongs to the field of adsorption materials. By using biomass powder particles as the raw materialand through a series of surface modification treatment and wetting, a profile device having good shape and size and space structure can be manufactured by means of various common shapes of molds. No inorganic or organic adhesives are used during the molding process. Thus, the increase of costs is avoided, and it is ensured that the good adsorption performance is not reduced or damaged. Only by means of comprehensive effects of pressure, heating, water and stone materials, molding solidification of the biomass material and good smooth water seepage can be realized, and a good solution can be provided for profile formation and functionalized use of the biological adsorption material.

Description

technical field [0001] This technology relates to a profile processing method for making bio-adsorption granular materials into large block structures. Specifically, after a series of operations such as pressing and molding and drying with a mold, the bio-adsorption granular materials are obtained with a certain shape (ball, cylinder, etc.) , rods, squares, etc.) and scale new block devices, which solves the problem of blockage and difficulty in water seepage due to water swelling and softening when bioabsorbent materials are pressed into blocks, and because of the adsorption properties of the material itself. The bulk profiles also have good adsorption properties, and can be conveniently used for the adsorption and separation of cationic heavy metals in water such as lead, cadmium, nickel, zinc, copper, iron, cobalt, and manganese. [0002] technical background [0003] Since the "Minamata disease" and "Itai-itai disease" that shocked the world in the middle of the 20th cent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J2220/4825B01J2220/485B01J2220/4868C02F1/286C02F2101/20C02F2101/203C02F2101/206
Inventor 黄凯张扬忠王耀耀黄海芳李亚晴
Owner UNIV OF SCI & TECH BEIJING
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