Method for restoring antibiotics-polluted wastewater

A restoration method and antibiotic technology, applied in the field of environmental engineering, can solve the problems of non-recyclable, cumbersome steps, and high processing costs, and achieve the effects of no secondary pollution, low maintenance technology, and low investment.

Active Publication Date: 2014-10-22
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method needs to adjust the pH value, the steps are cumbersome, and a copper sulfide bed is required, the treatment cost is high and it cannot be recycled.

Method used

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  • Method for restoring antibiotics-polluted wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for repairing tetracycline drug-contaminated wastewater, the steps are as follows:

[0025] (1) Pass the soil through a 20-mesh sieve after air-drying, and burn it at 600° C. for 15 minutes to obtain a restoration agent; the soil type is cinnamon, and the main clay minerals are kaolin and montmorillonite;

[0026] (2) Place the restorative agent prepared in step (1) in the contaminated wastewater with a concentration of 0.5 mg / L of tetracyclines (oxytetracycline, chlortetracycline, doxycycline and tetracycline exist simultaneously), and the repair is completed in 6 hours; The ratio of the quality of the restoration agent to the volume of the polluted wastewater is 1:1000g / mL.

Embodiment 2

[0028] A kind of repairing method to quinolones polluted waste water, the steps are as follows:

[0029] (1) Pass the soil through a 15-mesh sieve after air-drying, and burn it at 500° C. for 30 minutes to obtain a restoration agent; the soil type is cinnamon, and the main clay minerals are kaolin and montmorillonite;

[0030] (2) placing the restorative agent prepared in step (1) at a concentration of 0.8 mg / L quinolone antibiotics (ofloxacin, enrofloxacin, ciprofloxacin and norfloxacin exist simultaneously) polluted wastewater In 6h, the restoration is completed; the ratio of the mass of the restoration agent to the volume of the polluted wastewater is 1:1200g / mL.

Embodiment 3

[0032] A kind of repairing method to quinolones polluted waste water, the steps are as follows:

[0033] (1) Pass the soil through a 20-mesh sieve after air-drying, and burn it at 600° C. for 15 minutes to obtain a restoration agent; the soil type is fluvo-aquic soil, and the main clay minerals are kaolin and montmorillonite;

[0034] (2) placing the restorative agent prepared in step (1) at a concentration of 0.3 mg / L quinolones (ofloxacin, enrofloxacin, ciprofloxacin and norfloxacin exist simultaneously) polluted wastewater In the process, the restoration was completed in 5 hours; the ratio of the mass of the restoration agent to the volume of quinolone drug-contaminated wastewater was 1:900g / mL.

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Abstract

The invention relates to a method for restoring antibiotics-polluted wastewater, which comprises the following steps: airing soil, then screening with a sieve of 15-30 meshes, and firing for 15-40 minutes at 400-600 DEG C to obtain a restorative agent; and feeding the restorative agent into the polluted wastewater with antibiotics, thus finishing the remediation within 5-10 hours. The method provided by the invention is efficient in removing antibiotics, especially tetracycline and quinolone from the polluted wastewater, with the removal rate up to 99.9% within 5 hours, capable of removing all the antibiotics within 6-10 hours. The restored water may meet relevant national standards for quality of water.

Description

technical field [0001] The invention relates to a method for repairing waste water polluted by antibiotics, and belongs to the technical field of environmental engineering. Background technique [0002] In recent years, with the discharge of aquaculture wastewater and medical wastewater, a large amount of antibiotics have entered the environment, inducing the production and spread of "super bacteria", posing a serious threat to human health. Therefore, sewage treatment is required to control the use of antibiotics. However, at this stage, there is still a lack of key technologies for the removal of antibiotics in wastewater. International research on removal technologies mostly focuses on physical and chemical methods, such as adsorption, photodegradation, and catalytic oxidation. Although these methods can theoretically remove antibiotics in wastewater, they need to analyze and understand the components in wastewater in advance, and the complexity of pollutant components i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28B01J20/30B01J20/12C02F103/36
Inventor 李学文李涛杨曦伟赵慧男
Owner SHANDONG UNIV
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