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Activated carbon for antibiotic adsorption treatment as well as preparation method and application thereof

An adsorption treatment and activated carbon technology, applied in the field of porous materials, can solve the problems of inability to meet the needs of antibiotic pollution treatment, poor antibiotic adsorption effect, and high product cost performance, and achieve effective recovery and enrichment, low treatment cost, and high product cost-effective effect.

Pending Publication Date: 2022-02-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of its own structure, the existing activated carbon has poor adsorption effect on antibiotics and cannot meet its treatment requirements for antibiotic pollution.
Hevea rubber wood has a wide production area, large output, and is easy to obtain. It has many excellent characteristics, but it is mostly treated as waste at present, resulting in a large waste of resources.
Among them, zinc-modified activated carbon is disclosed. Although it has the advantages of strong adsorption capacity, developed pores, large specific surface area, and high cost performance; it can effectively recover and enrich antibiotics in water, and inhibit their migration in nature. It is not big enough, and there are shortcomings such as large usage and high cost of use

Method used

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  • Activated carbon for antibiotic adsorption treatment as well as preparation method and application thereof
  • Activated carbon for antibiotic adsorption treatment as well as preparation method and application thereof
  • Activated carbon for antibiotic adsorption treatment as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing activated carbon for antibiotic adsorption treatment, comprising the following steps: crush rubber seed shells, pass through a 100-mesh sieve, and dry at 70°C; weigh 2g of rubber seed shell powder and add water to 200mL. Immerse for 2 hours, evaporate the water to dryness at 70°C, and then dry at 135°C for 2 hours; carbonize the dried material in a tube furnace for 1 hour under the protection of nitrogen, the carbonization temperature is 800°C, the heating rate is 5°C / min, nitrogen The flow rate is 100 mL / min. The obtained product was washed twice with hydrochloric acid, and then washed with deionized water until the washing liquid was neutral. Finally, put the washed product into a drying oven and dry it at 70°C for 2 hours to obtain the modified activated carbon.

[0033] Weigh 5 mg of the above modified activated carbon and place it in 100 mL of antibiotic solution with a concentration of 80 mg / L. After 22 hours, the adsorption capacity of tet...

Embodiment 2

[0035] A preparation method of activated carbon for antibiotic adsorption treatment, which includes the following steps: crush rubber seed shells and pass through a 100-mesh sieve, and dry at 70°C; weigh 2g of rubber seed shell powder, and then weigh 4g of FeCl 3 ·6H 2 O Mix the two, add water to 200mL, soak for 2h, evaporate the water to dryness at 70°C, and then dry at 135°C for 2h; carbonize the dried product in a tube furnace for 1h under the protection of nitrogen, and the carbonization temperature is 700°C. The heating rate was 5 °C / min, and the nitrogen flow rate was 100 mL / min. The prepared product was washed twice with hydrochloric acid, and then washed with deionized water until the washing solution was neutral; finally, the washed product was dried in a drying oven at 70°C for 2 hours to obtain modified activated carbon.

[0036] Weigh 5 mg of the above-mentioned modified activated carbon and place it in 100 mL of antibiotic solution with a concentration of 80 mg / L...

Embodiment 3

[0038] A preparation method of activated carbon for antibiotic adsorption treatment, which includes the following steps: crush rubber seed shells through a 60-mesh sieve, and dry at 55°C; weigh 2g of rubber seed shell powder, and then weigh 6g of FeCl 3 ·6H 2O Mix the two, add water to 200mL and impregnate for 2h, evaporate the water to dryness at 70°C, and then dry at 135°C for 2h; carbonize the dried product in a tube furnace for 1h under the protection of nitrogen, and the carbonization temperature is 650°C. The heating rate is 6°C / min, and the nitrogen flow rate is 100mL / min; the prepared product is washed twice with hydrochloric acid, and then washed with deionized water until the washing solution is neutral; finally, the washed product is placed in a drying oven Dry at 70°C for 2 hours to obtain modified activated carbon.

[0039] Weigh 5 mg of the above-mentioned modified activated carbon and place it in 100 mL of antibiotic solution with a concentration of 80 mg / L. Af...

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Abstract

The invention discloses activated carbon for antibiotic adsorption treatment, which is characterized in that the activated carbon is prepared by mixing and activating rubber seed shell powder and FeCl3. 6H2O according to a mass ratio of 1: (2-5) and then carbonizing the rubber seed shell powder and the FeCl3. 6H2O. The invention has the following advantages and effects: the preparation process is simple, environment-friendly and low in consumption; the prepared activated carbon is higher in adsorption capacity, developed in pores, large in specific surface area and high in product cost performance; the used raw material is the waste rubber seed shells, the additional value of the rubber seed shells is increased, and the raw material is sufficient and easy to obtain; and antibiotics in water can be effectively recycled and enriched, migration of the antibiotics in nature can be better inhibited due to existence of ferric ions, the antibiotic wastewater treatment cost is lower, and compared with existing activated carbon, the cost performance is higher.

Description

technical field [0001] The invention relates to the technical field of porous materials, in particular to activated carbon for antibiotic adsorption treatment, its preparation method and application, which can be used for treating medical wastewater, agricultural wastewater, printing and dyeing factory wastewater and other application fields. Background technique [0002] Antibiotics are included in the wastewater or waste residues generated by the pharmaceutical industry during the production of pharmaceutical compounds. With the development of the pharmaceutical industry, the pollution of antibiotics is becoming more and more serious. Antimicrobials are considered emerging pollutants due to their constant emissions and their presence in ecosystems at low concentrations. Extensive use of antibiotics also produces a large amount of antibiotic-rich waste water, and there will be drug-resistant natural bacteria. Even 68 types of antibiotics were detected in some surface wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C10B53/02C10B57/06C10B57/10C02F1/28C01B32/324C02F101/30C02F103/30C02F103/34
CPCB01J20/20B01J20/3078C10B57/10C10B57/06C10B53/02C02F1/283C01B32/324B01J2220/4825C02F2101/30C02F2103/30C02F2103/343Y02E50/10
Inventor 陕绍云任浩胡天丁把明芳支云飞梅毅
Owner KUNMING UNIV OF SCI & TECH
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