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Camellia oleifera shell carbon powder material and application thereof in purifying antibiotic wastewater

A technology of camellia oleifera shell and carbon powder, which is applied in other chemical processes, carbon preparation/purification, water/sewage treatment, etc., can solve problems affecting the health and stability of the ecological environment, increase the adsorption capacity, and complicate the preparation process, and achieve adsorption balance The effect of short time, easy recovery and simple preparation process

Active Publication Date: 2020-05-19
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The widespread use of tetracycline has led to a large number of residues in the natural environment, seriously affecting the health and stability of the ecological environment
There have been many reports on the development of biomass-based carbon material adsorbents. However, the biomass-based carbon material adsorbents used to remove tetracyclines have complex preparation processes, the adsorption rate needs to be accelerated, and the adsorption capacity needs to be improved. feasibility to practical application

Method used

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  • Camellia oleifera shell carbon powder material and application thereof in purifying antibiotic wastewater
  • Camellia oleifera shell carbon powder material and application thereof in purifying antibiotic wastewater
  • Camellia oleifera shell carbon powder material and application thereof in purifying antibiotic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 A camellia oleifera shell carbon powder material in this example, the specific preparation steps are as follows:

[0031] (1) Mechanically grinding camellia oleifera shells into powder;

[0032] (2) Calculated according to the mass ratio, the ratio of camellia oleifera shell powder: water is 1:30, weigh 2 g of camellia oleifera shell powder and 60ml of water, pour them into a beaker, and place the beaker in an ultrasonic cleaner to ultrasonicate the experimental drug After dispersing for 1 hour, stir for 6 hours, put the mixed solution in a hydrothermal reaction kettle, bake in an oven at 230°C for 12 hours, filter and wash, and dry in an oven at 60°C for 24 hours to obtain carbon powder;

[0033] (3) Calculated according to the mass ratio, the obtained carbon powder: KOH ratio is 1:4. After grinding evenly, put it in a porcelain boat and put it in a tube furnace. Under the protection of argon, it takes 125 minutes from room temperature to roasting The temper...

Embodiment 2

[0034] The photographs of the camellia oleifera shell used in this example and the crushed camellia oleifera shell powder are shown in Figure 1 and so on. The XRD spectrum pattern of gained camellia oleifera shell carbon powder material is as follows figure 2 It can be seen from the figure that the XRD spectrum of the sample prepared in this example (650°C) has an obvious carbon peak near 26°, which is basically consistent with the porous carbon spectrum in the existing literature, proving that the carbon powder material was prepared. image 3 Be the scanning electron micrograph of the camellia oleifera shell carbon powder material obtained in this embodiment, from image 3 It can be seen that the carbon powder has a very irregular surface and the existence of holes, which proves that the carbon powder we prepared does have a porous structure. from Figure 4 Analysis, at 3439cm -1 There is a strong and broad absorption peak at the position corresponding to the stretching a...

Embodiment 3

[0037] (3) Calculated according to the mass ratio, the obtained carbon powder: KOH ratio is 1:4. After being evenly ground, it is placed in a porcelain boat and placed in a tube furnace. Under the protection of Ar, it takes 115 minutes from room temperature to the firing temperature of 700 ℃, roasted for 2 hours, then started the cooling program and continued to ventilate, and cooled to room temperature. The burnt sample was fully washed with water, and dried in an oven at 60° C. for 24 hours to obtain camellia oleifera shell carbon powder material. Example 3 A camellia oleifera shell carbon powder material in this example, the specific preparation steps are as follows:

[0038] (1) Mechanically grinding camellia oleifera shells into powder;

[0039] (2) Calculated according to the mass ratio, the ratio of camellia oleifera shell powder: water is 1:30, weigh 2 g of camellia oleifera shell powder and 60ml of water, pour them into a beaker, and place the beaker in an ultrasonic...

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Abstract

The invention belongs to the field of biomass charcoal adsorption materials, and discloses a camellia oleifera shell carbon powder material. A preparation method comprises the following steps: crushing camellia oleifera shells, mixing the obtained camellia oleifera shell powder with water; performing ultrasonic treatment and stirring, performing hydro-thermal treatment on anobtained mixed solution, drying to obtain carbon powder, mixing and grinding the obtained carbon powder and KOH, performing heating roasting treatment on the obtained mixed powder under the protection of argon atmosphere, cooling to room temperature, washing with water to be neutral, and drying anobtained product to obtain the camellia oleifera shell carbon powder material. The camellia oleifera shell carbon powder material disclosed by the invention is simple in preparation process, economical in raw materials and applicable to large-scale production, has the characteristics of short adsorption equilibrium time andhigh adsorption capacity in a tetracycline wastewater purification process, and has the advantages of easiness in recovery, stable chemical property and no toxic or side effect.

Description

technical field [0001] The invention belongs to the field of biomass carbon adsorption materials, and in particular relates to a camellia oleifera shell carbon powder material and its application in purifying antibiotic waste water. Background technique [0002] As a broad-spectrum antibiotic, tetracycline plays an important role in animal husbandry and pharmaceutical industry. Its molecular formula is C 22 h 24 N 2 o 8 , referred to as TC, in terms of chemical structure, they all belong to the derivatives derived from the core of polycyclic tetracenecarboxamide. According to research, the production of antibiotics in my country in 2010 was 210,000 tons, 48% of which were used in agriculture, aquaculture and animal husbandry, 42% were used in clinical medicine to treat diseases, and 10% were exported to foreign countries. In some parts of East China, the concentration of tetracycline in the feces of some pig farms is as high as 354 mg / kg, and the residual concentration o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05B01J20/20B01J20/30C02F1/28C02F103/34
CPCB01J20/20B01J2220/4825C02F1/283C02F2103/343C01B32/05
Inventor 张声森周武艺周子宁方岳平
Owner SOUTH CHINA AGRI UNIV
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