Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A method of doping fe(oh) with metal ions 2 Method for Removing Halogenated Organic Pollutants in Water

A technology of organic pollutants and metal ions, applied in the direction of water pollutants, contaminated groundwater/leachate treatment, chemical instruments and methods, etc., can solve the problems of high cost and stability to be improved, and achieve cost saving and reduction The risk of secondary pollution, the effect of easy realization

Active Publication Date: 2021-10-22
WUHAN UNIV
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of the supported catalyst method is high, and its stability needs to be improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of doping fe(oh) with metal ions <sub>2</sub> Method for Removing Halogenated Organic Pollutants in Water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this embodiment, a Ni 2+ Doped with Fe(OH) 2 The method for removing HOCs in water bodies is to treat water polluted with trichlorethylene, and the concentration of trichlorethylene is 20 μM, comprising the following steps:

[0042] Preparation of Fe in an anaerobic glove box 2+ solution and lye (NaOH), and Fe 2+ The solution is slowly added dropwise to the lye, and after the dropwise addition is completed, the Fe(OH) 2 Reserve solution for one day, reserve, the concentration of Fe(II) in the reserve solution is not lower than 450 mM, pH > 13;

[0043] Preparation of Ni in an anaerobic glove box 2+ Solution, when the concentration of the metal ion solution is 100 mM, set aside;

[0044] A 10 mL transparent glass bottle was used as the reaction system (the working system was 5 mL), and 0.5 mL Fe(OH) was added to the reaction system 2 stock solution, then add 0.5 mL Ni 2+ Shake the solution for 30 seconds, add anaerobic water to make it to 5 mL, adjust the pH to...

Embodiment 2

[0047] This embodiment is basically the same as Embodiment 1, especially in that:

[0048] In this example, a Co 2+ Doped with Fe(OH) 2 The method for removing water body HOCs is to treat water containing carbon tetrachloride pollution, and the concentration of carbon tetrachloride is 20 μM, comprising the following steps:

[0049] Preparation of Fe in an anaerobic glove box 2+ solution and lye (NaOH), and Fe 2+ The solution is slowly added dropwise to the lye, and after the dropwise addition is completed, the Fe(OH) 2 Reserve solution for one day, reserve, the concentration of Fe(II) in the reserve solution is not lower than 450 mM, pH > 13;

[0050] Preparation of Co in an anaerobic glove box 2+ Solution, when the concentration of the metal ion solution is 100 mM, set aside;

[0051] A 10 mL transparent glass bottle was used as the reaction system (the working system was 5 mL), and 0.5 mL Fe(OH) was added to the reaction system 2 stock solution, then add 0.5 mLCo 2+ ...

Embodiment 3

[0054] This embodiment is basically the same as the previous embodiment, and the special features are:

[0055] In this example, a Pd 2+ Doped with Fe(OH) 2 The method for removing HOCs in water bodies is to treat water polluted with trichlorethylene, and the concentration of trichlorethylene is 20 μM, comprising the following steps:

[0056] Preparation of Fe in an anaerobic glove box 2+ solution and lye (NaOH), and Fe 2+ The solution is slowly added dropwise to the lye, and after the dropwise addition is completed, the Fe(OH) 2 Reserve solution for one day, reserve, the concentration of Fe(II) in the reserve solution is not lower than 450 mM, pH > 13;

[0057] Preparation of Pd in ​​an anaerobic glove box 2+ Solution, when the concentration of the metal ion solution is 100 mM, set aside;

[0058] A 10 mL transparent glass bottle was used as the reaction system (the working system was 5 mL), and 0.5 mL Fe(OH) was added to the reaction system 2 stock solution, then add ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a metal ion doping Fe(OH) 2 The method for removing halogenated organic pollutants in water is to first configure Fe in an oxygen-free environment 2+ solution and lye, and the Fe 2+ The solution was slowly added dropwise to the lye, and after the addition was completed, it was left to stand to obtain Fe(OH) 2 The stock solution is for standby; then the divalent transition metal ion solution is configured in an oxygen-free environment for standby; then in an oxygen-free environment, Fe(OH) is added to the reaction vessel in turn 2 The stock solution and the divalent transition metal ion solution are neutralized by using hydrochloric acid to adjust the pH in the reaction vessel to obtain a decontamination solution; finally, the aqueous solution containing halogenated organic pollutants is added to the decontamination solution and shaken and mixed to carry out the decontamination reaction, that is, It can complete the removal of halogenated organic pollutants in water. The present invention utilizes Fe(OH) 2 The metal ions form a reduction system, which can completely dehalogenate HOCs in a short time, and has high-efficiency removal capability; the method of the invention is simple and convenient, easy to implement, and cost-saving.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to a method for removing halogenated organic pollutants in water, in particular to a method for doping Fe(OH) with metal ions 2 A method for removing halogenated organic pollutants in water, especially using a variety of metal ions doped with ferrous hydroxide (Fe(OH) 2 ) is a method for removing halogenated organic pollutants in water, which is an in-situ chemical reduction restoration technology for groundwater. Background technique [0002] Halogenated organic compounds are an important class of organic compounds, which are widely used in modern pesticides, medicine and other fields, resulting in a large amount of halogenated organic compounds being released into the environment. Halogenated organic substances have the characteristics of strong toxicity, stable structure, strong migration ability, and refractory biodegradation. They are extremely harmful substances. Their existence...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/70C02F101/36C02F103/06
CPCC02F1/70C02F2101/36C02F2103/06
Inventor 黄理志邓佳张雪洁贾欠欠韩振理赵鹏程
Owner WUHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com