Fish bone charcoal adsorbent and preparation method and application thereof

An adsorbent and fishbone charcoal technology, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve expensive problems, achieve easy regeneration, simple preparation methods, and easy industrial production.

Inactive Publication Date: 2015-09-23
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for ion resins, all other sorbents do not have this capability and are very expensive

Method used

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  • Fish bone charcoal adsorbent and preparation method and application thereof
  • Fish bone charcoal adsorbent and preparation method and application thereof
  • Fish bone charcoal adsorbent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of a novel herringbone charcoal adsorbent, comprising the following steps:

[0025] 1): Remove impurities, stir and scald the obtained freshwater fish bones in hot water at 80-100°C to remove impurities;

[0026] 2): drying, drying the fish bones after removing impurities in an oven at 50-100°C;

[0027] 3): Grinding, the dried fish bones are crushed with a universal grinder, the crushing time is 10-20s, and the interval is 1-5 minutes, and this is repeated 10-20 times to make fish bone powder with a particle size of 100 mesh, which is used as the raw material of the adsorbent;

[0028] 4): High-temperature roasting, the prepared 3g fish bone meal is roasted and carbonized in a closed muffle furnace at 500°C for 1 hour, the heating rate is 5°C / min, and then naturally cooled to room temperature and taken out to obtain fish bone charcoal adsorption agent.

[0029] When the fishbone meal of the present invention has not been treated at high temperatu...

Embodiment 2

[0041] A preparation method of a novel herringbone charcoal adsorbent, comprising the following steps:

[0042] 1): Remove impurities, stir and scald the obtained freshwater fish bone raw materials in hot water at 80-100°C to remove impurities;

[0043] 2): drying, drying the fish bones after removing impurities in an oven at 50-100°C;

[0044] 3): Grinding, the dried fish bones are crushed with a universal grinder, the crushing time is 10-20s, and the interval is 1-5 minutes, and this is repeated 10-20 times to make fish bone powder with a particle size of 100 mesh, which is used as the raw material of the adsorbent;

[0045] 4): High-temperature roasting, the prepared 3g fish bone powder is roasted and carbonized in a closed muffle furnace at 580°C for 1 hour, the heating rate is 4°C / min, and then naturally cooled to room temperature and taken out to obtain fish bone charcoal adsorption agent.

[0046] Table 2 is the removal effect of Example 2 on As(Ⅴ).

[0047] ...

Embodiment 3

[0050] A preparation method of a novel herringbone charcoal adsorbent, comprising the following steps:

[0051] 1): Remove impurities, stir and scald the obtained freshwater fish bone raw materials in hot water at 80-100°C to remove impurities;

[0052] 2): drying, drying the fish bones after removing impurities in an oven at 50-100°C;

[0053] 3): Grinding, the dried fish bones are crushed with a universal grinder, the crushing time is 10-20s, and the interval is 1-5 minutes, and this is repeated 10-20 times to make fish bone powder with a particle size of 100 mesh, which is used as the raw material of the adsorbent;

[0054] 4): High-temperature roasting, the prepared 3g of fish bone powder is roasted and carbonized in a closed muffle furnace at 420°C for 2 hours, the heating rate is 5°C / min, and then naturally cooled to room temperature and taken out to obtain fish bone charcoal adsorption agent.

[0055] Table 3 shows the removal effect of Example 3 on Pb(II).

[0056] ...

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Abstract

The invention relates to fish bone charcoal adsorbent, a preparation method thereof and application to heavy metal waste water. The preparation method includes the following steps of 1 impurity removing, wherein an obtained fish bone raw material is stirred and scalded in water to remove impurities; 2 drying, wherein the fish bones are put into a drying oven to be dried after the impurities are removed; 3 pulverizing, wherein the dried fish bones are pulverized in a pulverizer, and obtained fish bone dust serves as an adsorbent raw material; 4 high-temperature roasting, wherein the prepared fish bone dust is roasted and carbonized at high temperature, naturally cooled to the room temperature and then taken out to obtain the fish bone charcoal adsorbent. The preparation method has the following advantages that fish processing waste is low in price and easy to obtain, as the fish processing waste is prepared into fish bone charcoal, the potential value of the fish processing waste can be developed further, and the environmental pollution caused by discarding the fishing processing waste can be effectively reduced. In addition, the prepared bone charcoal is high in stability and adsorbability, easy to regenerate after absorption and reusable.

Description

technical field [0001] The invention belongs to the technical field of biochar, and in particular relates to a herringbone charcoal adsorbent, a preparation method thereof and an application in heavy metal wastewater. Background technique [0002] Biochar is a carbonaceous material produced by pyrolysis of biomass under complete or partial anoxic conditions. Biochar is considered as an efficient adsorption material because of its rich carbon, developed pore structure, large relative area and high ion exchange capacity and other excellent physical and chemical properties. [0003] Bone char (Bone black) is an amorphous carbon, containing 7% to 11% carbon, about 80% calcium phosphate and other inorganic salts. It is made from degreased bones and carbonized through multiple processes such as degreasing, degumming, high-temperature burning, and sorting under the condition of isolating the air. Hydroxyapatite extracted from bone char can remove heavy metals very effectively. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/62
Inventor 刘艳艳王卫
Owner WUHAN UNIV OF TECH
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