A recyclable and reusable organic wastewater degradation agent

A technology of organic wastewater and degradation agent, applied in water pollutants, oxidized water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of low hydrogen peroxide utilization efficiency in ferrous ion sludge, which restricts the large Fenton reaction Large-scale application and other issues, to achieve the effect of promoting and popularizing, facilitating recycling and avoiding secondary pollution

Active Publication Date: 2021-10-26
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Fenton system requires strong acidic (about pH=3) conditions and hydrogen peroxide (H 2 o 2 ) Utilization efficiency is low, ferrous ion (Fe 2+ ) loss produces a large amount of sludge and other defects, which seriously restricts the large-scale application of Fenton reaction

Method used

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  • A recyclable and reusable organic wastewater degradation agent
  • A recyclable and reusable organic wastewater degradation agent
  • A recyclable and reusable organic wastewater degradation agent

Examples

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Effect test

Embodiment 1

[0029] A recyclable organic wastewater degradation agent, the preparation raw materials of the recyclable organic wastewater degradation agent are as follows: 3 parts of dopamine hydrochloric acid, 5 parts of buffer solution, 6 parts of copper sulfate solution, 10 parts of magnetic nanoparticles, 4 parts of cetyltrimethylammonium chloride, 2 parts of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, and 1 part of N-hydroxysuccinimide.

[0030] Specifically, the buffer solution is a PBS buffer solution, and the concentration of the buffer solution is 10mmol L -1 , pH=7.0.

[0031] Specifically, the magnetic nanoparticles are carboxylated magnetic nanoparticles, and the concentration of the magnetic nanoparticles is 150uL2.0g·mL -1 .

[0032] A kind of recyclable organic waste water degrading agent provided by the present invention, the preparation method of described this degrading agent is as follows:

[0033] S1. Dissolve 50mg of dopamine hydrochloride in 8mL of PBS buffer so...

Embodiment 2

[0042] A recyclable organic wastewater degradation agent, the preparation raw materials of the recyclable organic wastewater degradation agent are as follows: 4 parts of dopamine hydrochloric acid, 8 parts of buffer solution, 7 parts of copper sulfate solution, 13 parts of magnetic nanoparticles, 6 parts of cetyltrimethylammonium chloride, 3 parts of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, 2 parts of N-hydroxysuccinimide.

[0043] Specifically, the buffer solution is a PBS buffer solution, and the concentration of the buffer solution is 10mmol L -1 , pH=7.0.

[0044] Specifically, the magnetic nanoparticles are carboxylated magnetic nanoparticles, and the concentration of the magnetic nanoparticles is 150uL2.0g·mL -1 .

[0045] A kind of recyclable organic waste water degrading agent provided by the present invention, the preparation method of described this degrading agent is as follows:

[0046] S1. Dissolve 55mg of dopamine hydrochloride in 10mL of PBS buffer solu...

Embodiment 3

[0055] A recyclable organic wastewater degradation agent, the preparation raw materials of the recyclable organic wastewater degradation agent are as follows: 5 parts of dopamine hydrochloric acid, 10 parts of buffer solution, 8 parts of copper sulfate solution, 15 parts of magnetic nanoparticles, 8 parts of cetyltrimethylammonium chloride, 4 parts of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, and 3 parts of N-hydroxysuccinimide.

[0056] Specifically, the buffer solution is a PBS buffer solution, and the concentration of the buffer solution is 10mmol L -1 , pH=7.0.

[0057] Specifically, the magnetic nanoparticles are carboxylated magnetic nanoparticles, and the concentration of the magnetic nanoparticles is 150uL2.0g·mL -1 .

[0058] A kind of recyclable organic waste water degrading agent provided by the present invention, the preparation method of described this degrading agent is as follows:

[0059] S1. Dissolve 60mg of dopamine hydrochloride in 12mL of PBS buffer...

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Abstract

The invention discloses a recyclable and reusable organic wastewater degradation agent. The formula of the recyclable and reusable organic wastewater degrader is as follows: dopamine hydrochloric acid, buffer solution, copper sulfate solution, magnetic nanoparticles, cetyl tri Methylammonium chloride, 1‑(3‑dimethylaminopropyl)‑3‑ethylcarbodiimide, N‑hydroxysuccinimide. In the present invention, the copper nanoparticles in the noble metal nanomaterials have special physical and chemical properties and enzyme-like properties, which can catalyze hydrogen peroxide to generate highly active hydroxyl radicals, and the copper nanoparticles are modified on the magnetic ferroferric oxide nanoparticles The surface of the particle, and the composite nanoparticle is applied to the degradation treatment of dye wastewater, which has high stability. Because the composite nanoparticle itself has strong paramagnetism, it can be conveniently recycled and reused under the action of an external magnetic field after use, thereby avoiding secondary pollution. , safe and stable, with a wide range of applications, which is conducive to promotion and popularization.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and more specifically relates to a recyclable organic wastewater degradation agent. Background technique [0002] With the continuous development of my country's economy, industrial sectors such as dyestuffs, medicine and biochemistry discharge a large amount of organic wastewater, causing environmental pollution and seriously threatening human health. Many studies have shown that traditional biological treatment methods, adsorption and oxidation technologies are difficult to treat organic wastewater to safe discharge or reuse standards, while advanced oxidation technology (AOPs) is suitable for treating this type of wastewater. Among them, the Fenton oxidation method has attracted people's attention due to its simple operation process, mild reaction conditions, and high oxidation efficiency, and has been widely used in the actual production of refractory and toxic organic wastewater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/745C02F1/72C02F101/30C02F101/34C02F101/36C02F101/38
Inventor 陈天仪
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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