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Furfural-residue-based biochar and application thereof

A technology of biomass charcoal and furfural slag, which is applied in the treatment of pathogenic microorganism wastewater, other chemical processes, water/sludge/sewage treatment, etc., can solve environmental pollution and other problems, achieve low price, wide source, and realize resource utilization Effect

Inactive Publication Date: 2018-11-06
宁夏然尔特工业产业研究院(有限公司)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of waste residue is acidic, and it will cause environmental pollution if it is piled up into a residue mountain or dug into a pit for landfill, and the current treatment method is mainly incineration for heating

Method used

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  • Furfural-residue-based biochar and application thereof
  • Furfural-residue-based biochar and application thereof
  • Furfural-residue-based biochar and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Preparation of biochar based on furfural residue

[0048] (1) 1g furfural slag is placed in the polytetrafluoroethylene liner of autoclave, drips dehydrating agent to furfural slag, and dehydrating agent is made up of the vitriol oil and vitriol that massfraction is more than 98%, the quality of both The ratio is 1:0.02. After magnetic stirring for 30 minutes, take out the magnet and install the reaction kettle;

[0049] (2) the installed autoclave is left to stand for a period of time at room temperature;

[0050] (3) place the reactor after standing in an oven for carbonization;

[0051] (4) After the carbonized reactor was naturally cooled to room temperature, the product was taken out, washed with distilled water, and suction filtered until the filtrate was neutral, and the obtained solid was dried in an oven at 80°C for 12 hours. The operating parameters of each step are listed in Table 1.

[0052] Table 1

[0053] Example

Furfural slag mesh ...

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Abstract

The invention relates to furfural-residue-based biochar, obtained by mixing furfural residue with a dehydrating agent and then performing a carbonization reaction on the mixture. In a preferred technical scheme, concentrated sulfuric acid and soluble sulfate are taken as the composite dehydrating agent, and furfural residue is converted into biochar, which is used for adsorbing antibiotics. The test shows that the surface of the biochar is rich in oxygen-containing functional groups such as carboxyl groups and hydroxyl groups, the highest rates of removing tetracycline and oxytetracycline at initial concentration of 200 mg / l are 98.0% and 95.5% respectively, and the maximal adsorption capacities are 162 mg / g and 335 mg / g respectively. The furfural-residue-based biochar can be applied to wastewater treatment in antibiotic production plants, hospitals and livestock farms.

Description

technical field [0001] The invention relates to the field of organic chemistry, in particular to a biochar based on furfural slag and the application of the biochar to adsorb antibiotics. Background technique [0002] Furfural is an important chemical raw material, which is used in petroleum refining, chemical industry, drug synthesis, rubber and other fields. The biggest advantage of this product lies in its raw materials, which are mainly agricultural and sideline product wastes such as corn cobs, corn stalks, straw, bagasse, peanut shells, etc. These wastes are inexhaustible and can be used recycled resources. Today, when biomass is highly concerned, furfural industry should be developed vigorously and downstream products should be expanded to solve the precarious energy problem. [0003] my country is a major producer and exporter of furfural. There are more than 200 domestic production enterprises with an annual output of about 300,000 tons. It is estimated that hund...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F103/34C02F103/20
CPCB01J20/20B01J20/3078B01J2220/4825B01J2220/485B01J2220/4881B01J2220/4887C02F1/283C02F2103/003C02F2103/20C02F2103/343
Inventor 刘万毅毕淑娴王彩虹曹华鹏赵齐全贾小东詹海鹃马宝军孟哲
Owner 宁夏然尔特工业产业研究院(有限公司)
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