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Application of resin-based protein composite material in purifying complex-state heavy metals in water

A technology for composite materials and heavy metals, applied in the fields of alkali metal compounds, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve problems that have not yet been reported in related research, achieve obvious environmental protection benefits, enhance utilization efficiency, and improve stability sexual effect

Pending Publication Date: 2022-04-29
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous studies have found that amyloid fibers can be used to remove conventional ionic heavy metals and radioactive substances, but there are no relevant research reports on the removal methods of complexed heavy metals such as Cu-EDTA, Ni-citric acid, etc.

Method used

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  • Application of resin-based protein composite material in purifying complex-state heavy metals in water
  • Application of resin-based protein composite material in purifying complex-state heavy metals in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Accurately weigh 2g of lysozyme protein and dissolve it in 100mL of water, adjust the pH of the solution to 2.0, then place it in a water bath at 85°C and stir for 8 hours to obtain a lysozyme protein with a diameter of about 3-5nm and a length of about 2-15μm Amyloid fibrous material ( Figure 1-2 ); Accurately weigh 5g of D201 ion exchange resin and place in 100mL aqueous solution, mix evenly to obtain resin carrier suspension. Then, take 0.5 mL of lysozyme protein amyloid fibrous material and 0.5 mL of resin carrier suspension and mix well, place in a vacuum filtration device, and obtain amyloid fiber composite membrane (referred to as composite membrane) by suction filtration.

[0027] The amyloid fiber composite membrane prepared above is used as a functional adsorption material, the temperature of the copper citrate sewage is controlled at 5°C, the pH value of the solution is adjusted to 2.0, the concentration of the prepared copper citrate is 1 mg / L, and conventi...

Embodiment 2

[0029] Accurately weigh 5g of lysozyme protein and dissolve it in 100mL of water, adjust the pH of the solution to 4.0, then place it in a 95°C water bath and stir for 10 hours to obtain a lysozyme protein with a diameter of about 3-5nm and a length of about 2-15μm Amyloid fiber material: Accurately weigh 10g of D201 ion exchange resin and place it in 100mL aqueous solution, mix well to obtain a resin carrier suspension. Then, take 0.5 mL of lysozyme protein amyloid fiber material and 1.0 mL of resin carrier suspension and mix well, place in a vacuum filtration device, and obtain amyloid fiber composite membrane (referred to as composite membrane) by suction filtration.

[0030] Use the amyloid fiber composite membrane prepared above as a functional adsorption material, control the temperature of EDTA copper sewage to 25°C, adjust the pH value of the solution to 5.0, prepare the concentration of EDTA copper to 5mg / L, and the conditions under which conventional competitive anion...

Embodiment 3

[0032] Accurately weigh 2g of bovine serum albumin and dissolve it in 100mL of water, adjust the pH of the solution to 3.0, then place it in a water bath at 100°C and stir for 12 hours to obtain bovine serum albumin with a diameter of about 3-5nm and a length of about 2-15μm Amyloid fibrous material: Accurately weigh 15g of D201×7 ion exchange resin, place it in 100mL aqueous solution, and mix evenly to obtain a resin carrier suspension. Then, take 0.5mL of bovine serum albumin amyloid fiber material and 0.5mL of resin carrier suspension and mix well, place in a vacuum filtration device, and obtain amyloid fiber composite membrane (referred to as composite membrane) by suction filtration.

[0033] The amyloid fiber composite membrane prepared above is used as a functional adsorption material, the temperature of the copper oxalate sewage is controlled to 30°C, the pH value of the solution is adjusted to 6.0, the concentration of the prepared copper oxalate is 10 mg / L, and the co...

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Abstract

The invention discloses application of a resin-based protein composite material to purification of complex-state heavy metals in water, and belongs to the technical field of environmental sewage treatment. The invention provides an application of a resin-based protein composite material in purifying complex-state heavy metals in water. The invention also provides an application method which comprises the following steps: (1) preparing the resin-based protein composite material; and (2) taking the complex-state heavy metal sewage, controlling the temperature and the pH value, and enabling the complex-state heavy metal sewage to pass through the resin-based protein composite material at the flow rate of 0.1-3L / h under the condition that at least one competitive ion exists in the complex-state heavy metal sewage, thereby completing purification. According to the present invention, the deep purification of the complex-state heavy metal is achieved, and the effluent is lower than the heavy metal ion limit value specified in the electroplating pollutant discharge standard (GB21900-2008).

Description

technical field [0001] The invention belongs to the technical field of environmental sewage treatment, and in particular relates to the application of resin-based protein composite materials in complexed heavy metals in purified water. Background technique [0002] The problem of heavy metal pollution in the water environment is becoming more and more serious, which seriously threatens the global ecosystem and human health. The development of efficient heavy metal water pollution remediation methods has become a key issue in environmental protection. For now, the main removal methods for heavy metals include chemical precipitation, adsorption, and membrane separation. However, for typical heavy metal pollution industries such as electroplating, tanning, and metallurgy, surfactants, brighteners, etc. are often added in the production process, and the wastewater often includes citric acid, ethylenediaminetetraacetic acid (EDTA), nitrogen triacetic acid, etc. Organic chelatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D67/00B01D69/02B01D69/12B01D71/06C02F1/28C02F1/42C02F1/44C02F101/34C02F101/38C02F103/16
CPCB01J20/24B01J20/265B01J20/28033B01D67/0002B01D69/12B01D69/02B01D71/06C02F1/288C02F1/42C02F1/44B01D2325/12B01D2325/42C02F2101/34C02F2101/38C02F2103/16
Inventor 张庆瑞王硕宋雅然赵梓屹王晶晶杜雪冬孙奇娜
Owner YANSHAN UNIV
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