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Preparation method of anglerfish bone biochar material capable of adsorbing heavy metal

A technology for adsorbing heavy metals and biochar, applied in chemical instruments and methods, adsorption of water/sewage treatment, water pollutants, etc., can solve the problems of waste of resources, pollution of the environment, etc., and achieve small average particle size, high specific surface area, and adsorption The effect of high efficiency of heavy metals

Inactive Publication Date: 2018-01-23
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anglerfish is commonly known as toad fish and sea toad. It has extremely high nutritional, edible and medicinal values, and is popular all over the world. In recent years, with the increase in demand for anglerfish, its production has also increased significantly. After industrial processing A large number of fish bones produced by the later anglerfish are discarded as leftovers, which not only pollutes the environment, but also causes a large waste of resources

Method used

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  • Preparation method of anglerfish bone biochar material capable of adsorbing heavy metal
  • Preparation method of anglerfish bone biochar material capable of adsorbing heavy metal

Examples

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Effect test

Embodiment 1

[0025] A preparation method of an anglerfish bone biochar capable of adsorbing heavy metals, comprising the following steps:

[0026] (1) Take 100g of sliced ​​and thawed fish bones, add distilled water until submerged, heat on a magnetic heating stirrer at 100°C for 30 minutes, filter and wash with distilled water to remove the attached meat on the fish bones. Crush the fish bones with a pulverizer and pass through a 20-mesh sieve.

[0027] (2) Get 20g of fishbone meal and disperse it in 4mol / L of ZnCl 2 In the solution, in the autoclave at 150°C for 6h, then heated to 250°C for 18h. Cool naturally after the reaction, vacuum filter, and dry at 80°C for 12 hours.

[0028] (3) The dried fishbone meal is placed in a tubular resistance furnace, and nitrogen gas with a flow rate of 100mL / min is introduced into the furnace to maintain an oxygen-deficient environment in the furnace; the heating rate is controlled by the program at 3°C / min, and the temperature is continuously raise...

Embodiment 2

[0031] A preparation method of an anglerfish bone biochar capable of adsorbing heavy metals, comprising the following steps:

[0032] (1) Take 150g of sliced ​​and thawed fish bones, add distilled water until submerged, heat on a magnetic heating stirrer at 100°C for 30 minutes, filter and wash with distilled water to remove the attached meat on the fish bones. Crush the fish bones with a pulverizer and pass through a 20-mesh sieve.

[0033] (2) Get 30g of fishbone meal and disperse it in 6mol / L of ZnCl 2 In the solution, in an autoclave at 160°C for 4h, then raise the temperature to 220°C for 20h. Cool naturally after the reaction, vacuum filter, and dry at 80°C for 12 hours.

[0034] (3) The dried fishbone meal is placed in a tubular resistance furnace, and nitrogen gas with a flow rate of 100mL / min is introduced into the furnace to maintain an oxygen-deficient environment in the furnace; the heating rate is controlled by the program at 3°C / min, and the temperature is cont...

Embodiment 3

[0037] A preparation method of an anglerfish bone biochar capable of adsorbing heavy metals, comprising the following steps:

[0038] (1) Take 200g of sliced ​​and thawed fish bones, add distilled water until submerged, heat on a magnetic heating stirrer at 100°C for 30 minutes, filter and wash with distilled water to remove the attached meat on the fish bones. Crush the fish bones with a pulverizer and pass through a 20-mesh sieve.

[0039] (2) Get 30g of fishbone meal and disperse it in 8mol / L of ZnCl 2 In the solution, in the autoclave at 180°C for 2h, then heated to 200°C for 22h. Cool naturally after the reaction, vacuum filter, and dry at 80°C for 12 hours.

[0040] (3) The dried fishbone meal is placed in a tubular resistance furnace, and nitrogen gas with a flow rate of 100mL / min is introduced into the furnace to maintain an oxygen-deficient environment in the furnace; the heating rate is controlled by the program at 3°C / min, and the temperature is continuously raise...

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Abstract

The invention provides a preparation method of an anglerfish bone biochar material capable of adsorbing heavy metal. The preparation method comprises the following steps: taking a proper amount of cutand unfrozen fish bones, removing meat attached to the fish bones by boiling water, pulverizing and sieving; performing two-step hydrothermal carbonization on the fish bone powder in an activating agent solution and by a high-pressure reaction kettle, and performing high-temperature pyrolysis carbonization in nitrogen atmosphere to obtain the anglerfish bone biochar material capable of adsorbingthe heavy metal. The prepared anglerfish bone biochar material has large specific surface area and good effect of adsorbing the heavy metal in wastewater, greatly increases the additional value of theanglerfish bones, and is green and economic.

Description

technical field [0001] The invention relates to a preparation method of a biochar material, in particular to a preparation method of an anglerfish bone biochar material capable of absorbing heavy metals, and belongs to the technical field of fish processing. Background technique [0002] Fishbone is the general term for the axial bone, appendage bone and fishbone of the fish body. It usually accounts for 10% to 15% of the fish's body weight. It is rich in calcium, collagen, chondroitin and other nutrients. However, as a by-product of the fish processing industry, fish bones are usually discarded together with other processing waste or only used as fertilizer and feed, resulting in a waste of resources. Biochar is a product of waste resource utilization. As a new type of environmental functional material, biochar has become a frontier research topic in environmental science and other disciplines due to its excellent environmental and ecological effects. At present, the resea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/20
Inventor 王亚宁宋文东纪丽丽郭建蔡璐应知伟林艺鸿
Owner ZHEJIANG OCEAN UNIV
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