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Biochar composite material, preparation method and applications thereof

A composite material and biochar technology, applied in the field of materials, can solve the problems of different biochar specific surface area, surface hydrophobic pore structure, affecting adsorption performance, affecting biochar adsorption treatment effect, etc.

Inactive Publication Date: 2018-07-06
HAIMEN YUANMEI MEISHU TUAN SHEJI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, different sources and different preparation conditions will cause significant differences in the specific surface area, surface hydrophobicity, and pore structure of biochar, which will affect the adsorption performance; Will significantly affect the adsorption effect of biochar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A biochar composite material is prepared by the following method: dry wheat straw, rice straw and corn straw are mixed and pulverized, dried and mixed with isopropyl palmitate, propylparaben and barium petroleum sulfonate, Heating and stirring for reaction; after the reaction, drying, roasting and grinding to obtain the biochar composite material.

[0019] Wherein, the mass ratio of dry wheat straw, rice straw and corn straw is 1:3:3.

[0020] Wherein, the isopropyl palmitate is 7% of the weight of the mixed straw; the propylparaben is 14% of the weight of the mixed straw; and the barium petroleum sulfonate is 3% of the weight of the mixed straw.

[0021] Among them, the heating and stirring reaction temperature is 70°C; the drying temperature is 55°C; and the roasting temperature is 350°C.

Embodiment 2

[0023] A biochar composite material is prepared by the following method: dry wheat straw, rice straw and corn straw are mixed and pulverized, dried and mixed with isopropyl palmitate, propylparaben and barium petroleum sulfonate, Heating and stirring for reaction; after the reaction, drying, roasting and grinding to obtain the biochar composite material.

[0024] Wherein, the mass ratio of dry wheat straw, rice straw and corn straw is 1:2:1.

[0025] Wherein, the isopropyl palmitate is 5% of the weight of the mixed straw; the propylparaben is 10% of the weight of the mixed straw; and the barium petroleum sulfonate is 1% of the weight of the mixed straw.

[0026] Among them, the heating and stirring reaction temperature is 60°C; the drying temperature is 45°C; and the roasting temperature is 250°C.

Embodiment 3

[0028] A biochar composite material is prepared by the following method: dry wheat straw, rice straw and corn straw are mixed and pulverized, dried and mixed with isopropyl palmitate, propylparaben and barium petroleum sulfonate, Heating and stirring for reaction; after the reaction, drying, roasting and grinding to obtain the biochar composite material.

[0029] Wherein, the mass ratio of dry wheat straw, rice straw and corn straw is 1:4:5.

[0030] Wherein, the isopropyl palmitate is 9% of the weight of the mixed straw; the propylparaben is 18% of the weight of the mixed straw; and the barium petroleum sulfonate is 5% of the weight of the mixed straw.

[0031] Among them, the heating and stirring reaction temperature is 80°C; the drying temperature is 65°C; and the roasting temperature is 450°C.

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PUM

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Abstract

The invention discloses a biochar composite material, a preparation method and applications thereof. The preparation method comprises: carrying out mixed crushing on dried wheat straw, rice straw andcorn straw, drying, mixing with isopropyl palmitate, propyl paraben and barium petroleum sulfonate, carrying out a heating stirring reaction, drying after completing the reaction, roasting, and grinding to obtain the biochar composite material. The biochar composite material of the present invention can be used for purifying dye wastewater.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a biochar composite material and its preparation method and application. Background technique [0002] my country's textile, paper and other industries use hundreds of thousands of tons of dyes every year, which produces a large amount of dye wastewater and brings huge environmental risks. At present, the main methods for treating dye wastewater include physical chemical method and biological treatment method, among which, activated carbon adsorption method has a good effect on the removal of dissolved organic dyes, but the high cost of activated carbon limits the wide application of this method. Finding efficient and cheap adsorbents to replace activated carbon may be one of the effective ways to improve the efficiency of dye wastewater treatment. Biochar is a carbonaceous substance produced by low-temperature and slow pyrolysis of biomass under anoxic conditions. Its raw m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/30
CPCB01J20/20B01J2220/4825C02F1/283C02F2101/308
Inventor 谢越
Owner HAIMEN YUANMEI MEISHU TUAN SHEJI CO LTD