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Natural biomass adsorbent, and preparation method and application thereof

A technology of biomass adsorbent and adsorbent, which is applied in the direction of chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve the problems of complex process and low adsorption capacity, and achieve high adsorption efficiency and good hydrophilicity The effect of sex and adsorption properties

Inactive Publication Date: 2017-05-31
HEBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The present invention overcomes the shortages of organic solvents, complicated process and low adsorption capacity needed for the modification of peanut shells in the current technology. In addition, the peanut shell adsorption material prepared by the present invention can be better suspended in water bodies, and can be used for The adsorption and adsorption effect of pollutants in the water body is good. After the adsorption is completed, it can settle in a short time, which greatly saves energy consumption in the process of recycling the adsorption materials.

Method used

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  • Natural biomass adsorbent, and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0044] (1) Preparation of peanut shell powder: clean the collected peanut shells, and then place them in an oven at 105°C to dry for 6 hours, pulverize the dried peanut shells in a grinder, and sieve them for later use to obtain a particle size of 0.06- 0.1mm peanut shell powder;

[0045] (2) Preparation of alkaline solution: Weigh 5g of sodium hydroxide, dissolve it in distilled water, dissolve completely at room temperature, transfer to a 250mL volumetric flask, dilute to the mark with distilled water, and prepare 0.5mol / L The sodium hydroxide solution is standby;

[0046] (3) Preparation of natural biomass peanut shell adsorbent: Weigh 1.5g of peanut shell powder, disperse it in 60mL of 0.5mol / L sodium hydroxide solution, transfer to 100mL autoclave and carry out water dehydration at 180°C. Heat reaction for 8 hours, after the reaction is completed, cool the autoclave to room temperature, centrifuge and wash the obtained solid product with distilled water, dry in an oven a...

Embodiment 2

[0049] (1) Preparation of peanut shell powder: clean the collected peanut shells, then place them in an oven at 105°C for 8 hours, crush the dried peanut shells in a grinder, and sieve them for later use to obtain a particle size of 0.06- 0.1mm peanut shell powder;

[0050] (2) Preparation of alkaline solution: Weigh 20g of sodium hydroxide, dissolve it in distilled water, dissolve completely at room temperature, transfer to a 250mL volumetric flask, dilute to the mark with distilled water, and prepare 2mol / L Sodium hydroxide solution is standby;

[0051] (3) Preparation of natural biomass peanut shell adsorbent: Weigh 3.6g of peanut shell powder, disperse it in 80mL of 2mol / L sodium hydroxide solution, transfer it to a 100mL autoclave for hydrothermal treatment at 160°C After the reaction was completed for 6 hours, the autoclave was cooled to room temperature, and the obtained solid product was centrifuged and washed with distilled water, dried in an oven at 100°C for 8 hour...

Embodiment 3

[0054] (1) Preparation of peanut shell powder: clean the collected peanut shells, and then place them in an oven at 105°C to dry for 10 hours, pulverize the dried peanut shells in a grinder, and sieve them for later use to obtain a particle size of 0.06- 0.1mm peanut shell powder;

[0055] (2) Preparation of alkaline solution: Weigh 50g of sodium hydroxide, dissolve it in distilled water, dissolve it completely at room temperature, transfer it to a 250mL volumetric flask, dilute to the mark with distilled water, and prepare 5mol / L Sodium hydroxide solution is standby;

[0056] (3) Preparation of natural biomass peanut shell adsorbent: Weigh 3.6g of peanut shell powder, disperse it in 80mL of 5mol / L sodium hydroxide solution, transfer it to a 100mL autoclave for hydrothermal treatment at 180°C React for 8 hours, after the reaction is completed, cool the autoclave to room temperature, centrifuge and wash the obtained solid product with distilled water, dry it in an oven at 100°...

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Abstract

The invention relates to a natural biomass adsorbent, and a preparation method and application thereof. The natural biomass adsorbent is prepared by taking a peanut shell as a raw material and separating components in the peanut shell having good adsorbability from other impurities by means of an alkaline solution in combination with hydrothermal carbonation reaction. The invention overcomes the defects of need of organic solvent, complex process and low adsorption capacity during peanut shell modification in the current technology. Besides, the peanut shell adsorbing material prepared by the invention can be favorably suspended in a water body, so that the peanut shell adsorbing material can be used for adsorbing pollutants in the water body, and the adsorption effect is favorable; and after the adsorption is completed, sedimentation can be realized in a short time, thereby greatly reducing energy consumption in the adsorbing material recovery process.

Description

technical field [0001] The invention relates to a high-efficiency natural biomass peanut shell adsorbent, preparation method and application. Specifically, the natural biomass peanut shell is subjected to hydrothermal treatment with an alkaline solution, and then washed and dried, and the obtained product is used for organic treatment of water environment pollution. The treatment of sewage and heavy metal ion sewage can finally realize the resource utilization of agricultural and forestry waste, treat waste and turn waste into treasure, and achieve the purpose of energy saving and emission reduction. Background technique [0002] my country is a large agricultural country, and its industrial development is relatively backward. In order to improve people's living standards and promote the development of the national economy, the country vigorously develops industry and agriculture. Cause serious pollution of refractory organic matter and heavy metal ions to the environment. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J2220/4825C02F1/286C02F2101/20C02F2101/308Y02W10/37
Inventor 李银辉和鑫刘传铭任艳梅郝雪梅曹琪盼陈建新
Owner HEBEI UNIV OF TECH
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