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Method for preparing nano composite microcapsule water treatment agent

A water treatment agent and nano-composite technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc. Large and other problems, to meet the requirements of wastewater treatment, good heavy metal adsorption effect, good adsorption effect

Inactive Publication Date: 2018-04-03
苏州纳贝通环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the various and mixed types of water pollutants, and the main water treatment agents currently used have a single function, it is necessary to add flocculants, corrosion inhibitors, fungicides and other agents to the water treatment system, and the treatment process is complicated.
There are a lot of equipment, complicated operation process, large amount of dosage and high cost, and various reagents will resist each other through various chemical reactions, resulting in a decrease in drug efficacy.
However, the existing water treatment agents often have weak adsorption capacity for some heavy metal ions.

Method used

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  • Method for preparing nano composite microcapsule water treatment agent

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Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of nanocomposite microcapsule water treatment agent, comprising the following steps:

[0018] (1) Disperse 40 parts by weight of carboxyl-modified magnetic nanoparticles with deionized water, put them into an ultrasonic instrument for 20 minutes, and add carbodiimide EDC and N-hydroxysuccinimide NHS to the magnetic nanoparticles After 1.5 hours of shaking reaction at room temperature, amino-modified PEG was added to continue the shaking reaction for 3 hours, the magnetic nanoparticles were adsorbed under the action of an external magnetic field, the upper solvent was removed, and then PBS buffer solution with pH 7.2 was added to regenerate the magnetic nanoparticles. hang

[0019] (2) Add ethoxylated alkyl sodium sulfate and sodium dodecylbenzenesulfonate to the magnetic nanoparticles treated in step (1), shake and react at room temperature for 2 hours, and remove the upper solution under the action of an external magnetic field , and then resuspen...

Embodiment 2

[0025] A preparation method of nanocomposite microcapsule water treatment agent, comprising the following steps:

[0026] (1) Disperse 30 parts by weight of carboxyl-modified magnetic nanoparticles with deionized water, put them in an ultrasonic instrument for 15 minutes, and add carbodiimide EDC and N-hydroxysuccinimide NHS to the magnetic nanoparticles , After shaking and reacting at room temperature for 1 hour, add amino-modified PEG to continue shaking and reacting for 2 hours, absorb magnetic nanoparticles under the action of an external magnetic field, remove the upper solvent, and then add PBS buffer with pH 7.2 to resuspend the magnetic nanoparticles ;

[0027] (2) Add ethoxylated alkyl sodium sulfate and sodium dodecylbenzenesulfonate to the magnetic nanoparticles treated in step (1), shake and react at room temperature for 1.5 hours, and remove the upper layer under the action of an external magnetic field solution, and then resuspend the magnetic nano-ion with deio...

Embodiment 3

[0033] A preparation method of nanocomposite microcapsule water treatment agent, comprising the following steps:

[0034] (1) Disperse 50 parts by weight of carboxyl-modified magnetic nanoparticles with deionized water, put them into an ultrasonic instrument for 30 minutes, and add carbodiimide EDC and N-hydroxysuccinimide NHS to the magnetic nanoparticles , After shaking and reacting at room temperature for 2 hours, add amino-modified PEG to continue shaking and reacting for 4 hours, absorb magnetic nanoparticles under the action of an external magnetic field, remove the upper solvent, and then add PBS buffer with pH 7.2 to resuspend the magnetic nanoparticles ;

[0035] (2) Add ethoxylated alkyl sodium sulfate and sodium dodecylbenzenesulfonate to the magnetic nanoparticles treated in step (1), shake and react at room temperature for 3 hours, and remove the upper solution under the action of an external magnetic field , and then resuspend the magnetic nano-ions with deioniz...

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Abstract

The invention provides a method for preparing a nano composite microcapsule water treatment agent. According to the method, magnetic nanoparticles are adopted as a substrate which is combined with a surfactant to prepare the microcapsule water treatment agent. Water treatment tests of the water treatment agent show that the water treatment agent prepared by using the method has a good adsorption function on heavy metals such as mercury, nickel, cadmium and arsenic, the heavy metal ion removal rate is up to 90% or greater, heavy metal ions in wastewater treated with the microcapsule water treatment agent prepared by using the method are thoroughly treated, the treatment cost is low, no toxicity or pollution is caused, and the treated wastewater can meet requirements of national comprehensive sewage discharge standards. In addition, compared with a conventional water treatment agent, the water treatment agent prepared by using the method has a relatively good heavy metal adsorption effect, and wastewater treatment requirements of heavy metal ions can be met.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a preparation method of a nanocomposite microcapsule water treatment agent. Background technique [0002] In recent years, with the rapid development of the world economy, the human demand for water resources is increasing, but at the same time the pollution of domestic water is also becoming more and more serious. At present, the main treatment method for water pollution is chemical treatment, that is, water pollutants are treated by adding drugs. Due to the various and mixed types of water pollutants, and the main water treatment agents currently used have single functions, it is necessary to add flocculants, corrosion inhibitors, fungicides and other agents to the water treatment system, and the treatment process is complicated. There are a lot of equipment, complicated operation process, large dosage of medicament, high cost, and various reagents will res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/22B01J20/28014C02F1/285C02F2101/20
Inventor 潘明华
Owner 苏州纳贝通环境科技有限公司