Wormwood-based biomass active carbon as well as preparation method and application thereof

A biomass and activated carbon technology, applied in chemical instruments and methods, water pollutants, carbon compounds, etc., can solve problems such as harm to the human body and the natural environment, difficult microbial degradation, etc., to achieve low cost, controllable adsorption process, process simple effect

Inactive Publication Date: 2018-06-29
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment process of printing and dyeing wastewater is mainly based on physical and chemical methods, biochemical methods, chemical methods and their combination methods, but because the wastewater contains organic substances such as benzene rings and azo groups, it is difficult to be degraded by microorganisms, such as Improper handling will cause harm to the human body and the natural environment due to the discharge of these toxic and harmful substances into the environment

Method used

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  • Wormwood-based biomass active carbon as well as preparation method and application thereof

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Effect test

Embodiment 1

[0027] The present embodiment is the preparation method of mugwort-based biomass activated carbon, comprising the following steps:

[0028] Step 1, putting 200g of raw material wormwood residue into a drying oven and drying at 50°C to obtain wormwood residue powder;

[0029] Step 2, soaking the wormwood residue powder with 1 L of phosphoric acid aqueous solution with a concentration of 1mol / L for 6 hours, and then drying in an oven at 65°C to obtain acidified wormwood residue powder;

[0030] Step 3, placing the acidified wormwood slag powder in a muffle furnace, raising the temperature to 500°C at a heating rate of 10°C / min, then keeping the temperature at a constant temperature for 3 hours, and cooling down to normal temperature naturally to obtain activated wormwood slag powder;

[0031] Step 4, the activated wormwood residue powder is washed with deionized water until the pH is neutral, and finally dried and sieved through 100 mesh to obtain wormwood-based biomass activate...

Embodiment 2

[0037] The present embodiment is the preparation method of mugwort-based biomass activated carbon, comprising the following steps:

[0038] Step 1, putting 200g of raw material wormwood residue into a drying oven and drying at 65°C to obtain wormwood residue powder;

[0039] Step 2, soaking the wormwood residue powder with 1 L of phosphoric acid aqueous solution with a concentration of 1mol / L for 6 hours, and then drying in an oven at 65°C to obtain acidified wormwood residue powder;

[0040] Step 3, placing the acidified wormwood slag powder in a muffle furnace, raising the temperature to 600°C at a heating rate of 10°C / min, then keeping the temperature at a constant temperature for 3 hours, and cooling down to normal temperature naturally to obtain activated wormwood slag powder;

[0041] Step 4, the activated wormwood residue powder is washed with deionized water until the pH is neutral, and finally dried and sieved through 100 mesh to obtain wormwood-based biomass activate...

Embodiment 3

[0047] The present embodiment is the preparation method of mugwort-based biomass activated carbon, comprising the following steps:

[0048] Step 1, putting 200g of raw material wormwood residue into a drying oven and drying at 65°C to obtain wormwood residue powder;

[0049] Step 2, soaking the wormwood residue powder with 1 L of phosphoric acid aqueous solution with a concentration of 1mol / L for 6 hours, and then drying in an oven at 65°C to obtain acidified wormwood residue powder;

[0050] Step 3, placing the acidified wormwood slag powder in a muffle furnace, raising the temperature to 700°C at a heating rate of 10°C / min, then keeping the temperature at a constant temperature for 3 hours, and cooling down to normal temperature naturally to obtain activated wormwood slag powder;

[0051] Step 4, the activated wormwood residue powder is washed with deionized water until the pH is neutral, and finally dried and sieved through 100 mesh to obtain wormwood-based biomass activate...

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Abstract

The invention relates to wormwood-based biomass active carbon as well as a preparation method and application thereof. The preparation method comprises the following steps: by adopting wormwood residue as a raw material, soaking with acid and carrying out oxygen-limited activation. The preparation method has the advantages of simple process, short preparation period and good repeatability, and thenew method is provided for recycling of the wormwood residue. The prepared wormwood-based biomass active carbon has a porous structure and larger specific surface area, has stronger adsorption capability for pollutants in a water environment, and has the advantages of simple and easy preparation process, controllable adsorption process and lower cost, so that the wormwood-based biomass active carbon can be widely utilized in pollution control of water bodies.

Description

technical field [0001] The invention relates to the technical field of resource utilization of waste and preparation of biomass charcoal, in particular to a wormwood-based biomass activated carbon, a preparation method thereof and an application thereof. Background technique [0002] Wormwood is a common Chinese herbal medicine in Northeast my country, North China, East China, South China, and Southwest China. It contains more volatile oils, polysaccharides, alkaloids and other substances. It has high medicinal value and is very popular among users. The increasing research on substances such as essential oils extracted from grass has strongly promoted the rapid development of industries related to the extraction of essential oils from wormwood, which directly leads to the production of a large number of wormwood residues in the country every year. At present, the remaining wormwood residue after essential oil extraction is mostly disposed of by incineration or landfill, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/342B01J20/20B01J20/30C02F1/28C02F101/30C02F101/22C02F103/34
CPCB01J20/20C02F1/283C02F2101/22C02F2101/308C02F2103/343
Inventor 常飞程文博伍飞艳燕文静郑椒椒焦明智许泉雷彬陈红宇张晓雅张天旭张馨艺陈维芳管骁黄婷婷范小龙陈超越罗洋
Owner UNIV OF SHANGHAI FOR SCI & TECH
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