Preparation method of biomass carbon adsorption material

A technology of adsorption material and biochar, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve the problems of poor removal effect of heavy metal ions and low adsorption capacity, and achieve poor removal effect, Effect of improving adsorption capacity and improving adsorption performance

Inactive Publication Date: 2018-11-30
江苏新亿源环保科技有限公司
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  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem that the current biochar adsorption material has poor removal effect on heavy metal ions and low adsorption capacity, the present invention provides a preparation method of biochar adsorption material

Method used

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Experimental program
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Embodiment Construction

[0019] The choice of plant straw is any one of corn straw, wheat straw, soybean straw and reed straw.

[0020] The additive is prepared by mixing dodecyltrimethylammonium bromide and ammonium acetate at a mass ratio of 7:1.

[0021] The choice of surfactant is any one of sodium dodecylbenzenesulfonate and hexadecyldimethylamine oxide.

[0022] A preparation method of a biochar adsorption material, the preparation method comprising the steps of:

[0023] (1) Take the plant straw and squeeze it at 4MPa for 20 minutes, crush it, pass it through a 100-mesh sieve, mix the sieved particles with the ammonium bicarbonate solution at a mass ratio of 1:4~7, put it into the reaction kettle, and use hydrogen to add Press down to 2~4MPa, heat up to 300~400℃, stir for 50~70min;

[0024] (2) After the stirring is completed, discharge, filter, and collect the filter residue, in parts by weight, take 100-110 parts of water, 40-50 parts of filter residue, 19-22 parts of sodium silicate, 11-13...

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Abstract

The invention relates to a preparation method of biomass carbon adsorption material, and belongs to the technical field of environment-friendly materials. According to the invention, plant straws aresubjected to a trace of gasification treatment, part of structures of cellulose, lignin and the like in the plant straws can be removed in the gasification treatment process, so that the straw is enabled to be fluffy and the surface of the straw is enabled to have abundant active groups, meanwhile, ammonium hydrogen carbonate is added to form pores and expande porosity, and then mixed with sodiumsilicate which is used for supplying silicon source, so that sodium silicate is loaded in the straw pores, mesoporous nano-silica is formed through action of effect to fill the pores in the straws soas to improve adsorption capacity and adsorption effects of the straws, then mixed with oleic acid, oleic acid is adsorbed in the straws through adsorption of the straws so as to improve the adsorption property of biomass carbon to heavy metal ions, therefore the problems of poor removal efficiency and low adsorption capacity of the biomass carbon adsorption material to the heavy metal ions at present are effectively solved.

Description

technical field [0001] The invention relates to a preparation method of a biomass carbon adsorption material, which belongs to the technical field of environmental protection materials. Background technique [0002] In the process of industrial production, a large amount of wastewater containing cadmium and copper is discharged, which greatly increases the content of heavy metals in the water. Moreover, heavy metals are not easy to be degraded, but they can continue to accumulate and enter the human body, bringing harm to human health and seriously threatening human survival. Therefore, the removal of heavy metals in water pollution prevention and control has become one of the research hotspots. [0003] The pollution of crop straws has always been the bottleneck of agricultural development. According to the biomass conversion pathway, current biomass energy utilization technologies include physical conversion, biological conversion and chemical conversion. Physical trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/20B01J20/28009B01J20/28016B01J20/3078B01J20/3085B01J2220/4825C02F1/283C02F2101/20
Inventor 雷广云施衍刘红妹
Owner 江苏新亿源环保科技有限公司
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