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Wormwood-based biomass charcoal, and preparation method and application thereof

A technology of biomass charcoal and wormwood, applied in chemical instruments and methods, water pollutants, other chemical processes, etc., can solve problems such as harm to the human body and the natural environment, difficult microbial degradation, etc., to achieve low cost, and the adsorption process can be The effect of short control and preparation cycle

Inactive Publication Date: 2018-06-01
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] 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 charcoal, and preparation method and application thereof

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Embodiment 1

[0026] The present embodiment is the preparation method of wormwood-based biochar, comprising the following steps:

[0027] Step 1, putting 200g of raw material wormwood residue into a drying oven and drying at 50°C to obtain wormwood residue powder;

[0028] Step 2, placing the wormwood slag powder in a muffle furnace, raising the temperature to 500°C at a heating rate of 10°C / min, then carbonizing at a constant temperature for 3 hours, and obtaining carbonized wormwood slag powder after cooling down to normal temperature;

[0029] Step 3: Pickling the carbonized wormwood residue powder with aqueous hydrochloric acid solution with a concentration of 1 mol / L for 2 hours, then washing with deionized water until the pH is neutral, and finally drying and sieving through 100 mesh to obtain wormwood-based biochar .

[0030] The application of the wormwood-based biochar obtained in step 3 in removing tetracycline hydrochloride in water comprises the following steps:

[0031] Step ...

Embodiment 2

[0035] The present embodiment is the preparation method of wormwood-based biochar, comprising the following steps:

[0036] Step 1, putting 200g of raw material wormwood residue into a drying oven and drying at 65°C to obtain wormwood residue powder;

[0037] Step 2, placing the wormwood slag powder in a muffle furnace, raising the temperature to 600°C at a heating rate of 10°C / min, then carbonizing at a constant temperature for 3 hours, and obtaining carbonized wormwood slag powder after cooling down to normal temperature;

[0038] Step 3: Pickling the carbonized wormwood residue powder with aqueous hydrochloric acid solution with a concentration of 1 mol / L for 2 hours, then washing with deionized water until the pH is neutral, and finally drying and sieving through 100 mesh to obtain wormwood-based biomass carbon.

[0039] The application of the wormwood-based biochar obtained in step 3 in removing tetracycline hydrochloride in water comprises the following steps:

[0040]...

Embodiment 3

[0044] The present embodiment is the preparation method of wormwood-based biochar, comprising the following steps:

[0045] Step 1, putting 200g of raw material wormwood residue into a drying oven and drying at 65°C to obtain wormwood residue powder;

[0046] Step 2, placing the wormwood slag powder in a muffle furnace, raising the temperature to 700°C at a heating rate of 10°C / min, then carbonizing at a constant temperature for 3 hours, and obtaining carbonized wormwood slag powder after cooling down to normal temperature;

[0047] Step 3: Pickling the carbonized wormwood residue powder with aqueous hydrochloric acid solution with a concentration of 1 mol / L for 2 hours, then washing with deionized water until the pH is neutral, and finally drying and sieving through 100 mesh to obtain wormwood-based biomass carbon.

[0048] The application of the wormwood-based biochar obtained in step 3 in removing tetracycline hydrochloride in water comprises the following steps:

[0049]...

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Abstract

The invention relates to wormwood-based biomass charcoal, and a preparation method and an application thereof. In the preparation method, wormwood residues are used as the raw material and are subjected to oxygen-limited carbonization. The method has simple process, short preparation period and good repeatability, and is a novel technology of recycling of the wormwood residues. The wormwood-basedbiomass charcoal has a porous structure and large specific surface area and has strong adsorption capability to pollutants in water environments. The biomass charcoal has simple preparation process, controllable adsorption process and low cost, and can be extensively applied to pollution treatment for water bodies.

Description

technical field [0001] The invention relates to the technical field of waste resource utilization and biochar preparation, in particular to a wormwood-based biochar, 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 will not only cause the greenho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/22C02F101/30C02F101/38
CPCB01J20/20C02F1/283C02F2101/22C02F2101/30C02F2101/308C02F2101/38
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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