Method for treatment of tetracycline antibiotic wastewater by magnesium-aluminum hydrotalcite loaded TiO2 photocatalytic adsorption material

A magnesium-aluminum hydrotalcite and antibiotic wastewater technology, applied in water/sewage treatment, chemical instruments and methods, special compound water treatment, etc., can solve the problem of tetracycline antibiotic degradation rate and salinity not mentioned, and the treatment effect is vague, etc. problem, to achieve the effect of great practical significance and market competitiveness, low open-loop toxicity and high salinity

Active Publication Date: 2019-01-04
湖北昌硕环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the degradation rate and salinity of tetracycline antibiotics in water are not mentioned in the materials and methods, and the treatment effect is vague.

Method used

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  • Method for treatment of tetracycline antibiotic wastewater by magnesium-aluminum hydrotalcite loaded TiO2 photocatalytic adsorption material
  • Method for treatment of tetracycline antibiotic wastewater by magnesium-aluminum hydrotalcite loaded TiO2 photocatalytic adsorption material
  • Method for treatment of tetracycline antibiotic wastewater by magnesium-aluminum hydrotalcite loaded TiO2 photocatalytic adsorption material

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A magnesium aluminum hydrotalcite supported TiO 2 The method for treating tetracycline antibiotic wastewater with photocatalytic adsorption material, the application steps are:

[0035] Weigh 0.1g of magnesium aluminum hydrotalcite loaded TiO 2 The photocatalytic adsorption material was dispersed in 200mL of 100mgL tetracycline aqueous solution; under normal temperature conditions, the pH of the solution was adjusted to 11 by using acid solution and alkali solution; the reaction was irradiated with 400W ultraviolet light for 120min.

[0036] Use a needle filter to take the supernatant and filter the solid matter, and then use a UV-visible spectrophotometer to test the tetracycline absorbance at 360nm. The converted tetracycline removal rate is 94%, and the salinity is 35%.

Embodiment 2

[0038] A magnesium aluminum hydrotalcite supported TiO 2 The method for treating tetracycline antibiotic wastewater with photocatalytic adsorption material, the application steps are:

[0039] Weigh 0.1g of magnesium aluminum hydrotalcite loaded TiO 2 The photocatalytic adsorption material was dispersed in 200mL of 50mgL tetracycline aqueous solution; under normal temperature conditions, the pH of the solution was adjusted to 11 with acid solution and alkali solution; 500W power of ultraviolet light was used to react for 180min.

[0040] Use a needle filter to take the supernatant and filter the solid matter, and then use a UV-visible spectrophotometer to test the tetracycline absorbance at 360nm. The converted tetracycline removal rate is 94.3%, and the mineralization degree is 40%.

Embodiment 3

[0042] A magnesium aluminum hydrotalcite supported TiO 2 The method for treating tetracycline antibiotic wastewater with photocatalytic adsorption material, the application steps are:

[0043] Weigh 0.1g of magnesium aluminum hydrotalcite loaded TiO 2 The photocatalytic adsorption material was dispersed in 200mL of 50mgL tetracycline aqueous solution; under normal temperature conditions, acid solution and alkali solution were used to adjust the pH of the solution to 7; 400W power of ultraviolet light was used to react for 120min.

[0044] Use a needle filter to take the supernatant and filter the solids, and then use a UV-visible spectrophotometer to test the tetracycline absorbance at 360nm. The converted tetracycline removal rate is 92%, and the salinity is 40%.

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Abstract

The invention discloses a method for treatment of tetracycline antibiotic wastewater by a magnesium-aluminum hydrotalcite loaded TiO2 photocatalytic adsorption material. The method includes: weighingthe magnesium-aluminum hydrotalcite loaded TiO2 photocatalytic adsorption material, and dispersing into the tetracycline antibiotic wastewater; under normal-temperature conditions, adopting acid solution and alkaline solution to regulate pH of the wastewater to 3-11; subjecting the wastewater to ultraviolet irradiation while stirring the wastewater to enable reaction of the wastewater under the condition of magnetic stirring. The method has advantages of short reaction time, normal reaction temperature, wide applicable pH range, low energy consumption, high degradation rate of tetracycline antibiotics in the wastewater, high mineralization degree, low ring-opening toxicity of disinfection by-products and the like and has great practical significance and market competitiveness. In addition,photocatalytic and adsorption synergistic effects on the tetracycline antibiotics in the wastewater are achieved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, in particular to a magnesium aluminum hydrotalcite loaded TiO 2 The invention discloses a method for treating tetracycline antibiotic wastewater with a photocatalytic adsorption material. Background technique [0002] Tetracycline antibiotic wastewater is difficult to treat wastewater. At present, the main treatment methods for tetracycline antibiotic wastewater in domestic and foreign industries include physical adsorption, biodegradation and advanced oxidative degradation. The physical adsorption method is effective in treating antibiotic wastewater, but it is easy to produce solid secondary pollutants; biodegradation treatment has low energy consumption and low cost, but microorganisms are specific, and a certain type of microorganisms can only treat specific antibiotics. Moreover, the process control is relatively complicated and the operating cost is high; advanced oxidation is the most ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F101/38C02F101/34
CPCC02F1/001C02F1/281C02F1/32C02F1/66C02F9/00C02F2101/34C02F2101/38C02F2305/10
Inventor 高宏宇宋桢桢张伟军
Owner 湖北昌硕环保科技有限公司
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