Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of composite magnetic material for sewage treatment

A composite magnetic material and sewage treatment technology, which is applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor treatment effect and low adsorption efficiency of magnetic materials, and achieve Good treatment effect and improved adsorption capacity

Inactive Publication Date: 2019-01-18
CHENDU NEW KELI CHEM SCI CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method for preparing a composite magnetic material for sewage treatment, and to solve the problem of low adsorption efficiency and poor treatment effect of the magnetic material used for sewage treatment in the prior art. question

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for a composite magnetic material for sewage treatment, comprising the steps of:

[0025] Step 1, pulverizing the sepiolite to a particle size of ≤0.1 mm, and then performing acid activation to obtain acid-activated sepiolite powder for use;

[0026] Step 2. Disperse the acid-activated sepiolite powder in step 1 in ethylene glycol to obtain a dispersion, and add ferric salt, ferrous salt, hexamethylenetetramine, biochar, humic acid to the dispersion After the acid and lye were mixed ultrasonically for 30 minutes under the condition of 50 kHz, they were transferred into a high-temperature and high-pressure reactor for 12 hours, and cooled to room temperature after the reaction to obtain a mixed solution;

[0027] Step 3: Let the mixed solution in step 2 stand still for at least 24 hours, filter to remove the filtrate, wash the filter residue twice with water, and dry to obtain the ferroferric oxide magnetic composite material loaded with humic acid o...

Embodiment 2

[0034] A preparation method for a composite magnetic material for sewage treatment, comprising the steps of:

[0035] Step 1, pulverizing the sepiolite to a particle size of ≤0.1 mm, and then performing acid activation to obtain acid-activated sepiolite powder for use;

[0036] Step 2. Disperse the acid-activated sepiolite powder in step 1 in ethylene glycol to obtain a dispersion, and add ferric salt, ferrous salt, hexamethylenetetramine, biochar, humic acid to the dispersion After the acid and lye were mixed ultrasonically for 20 minutes under the condition of 60 kHz, they were transferred into a high-temperature and high-pressure reactor for 4 hours, and cooled to room temperature after the reaction to obtain a mixed solution;

[0037] Step 3: Let the mixed solution in step 2 stand still for at least 24 hours, filter to remove the filtrate, wash the filter residue twice with water, and dry to obtain the ferroferric oxide magnetic composite material loaded with humic acid on...

Embodiment 3

[0044] A preparation method for a composite magnetic material for sewage treatment, comprising the steps of:

[0045] Step 1, pulverizing the sepiolite to a particle size of ≤0.1 mm, and then performing acid activation to obtain acid-activated sepiolite powder for use;

[0046] Step 2. Disperse the acid-activated sepiolite powder in step 1 in ethylene glycol to obtain a dispersion, and add ferric salt, ferrous salt, hexamethylenetetramine, biochar, humic acid to the dispersion After the acid and lye were mixed ultrasonically for 25 minutes under the condition of 55 kHz, they were transferred into a high-temperature and high-pressure reactor for 8 hours, and cooled to room temperature after the reaction to obtain a mixed solution;

[0047] Step 3: Put the mixed solution in step 2 to stand still for at least 24 hours, filter to remove the filtrate, wash the filter residue 3 times with water, and dry to obtain the ferroferric oxide magnetic composite material loaded with humic ac...

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 relates to a preparation method of a composite magnetic material for sewage treatment. The method comprises the following steps: 1, pulverizing sepiolite to a particle size of less thanor equal to 0.1mm, and then performing acid activation to obtain acid-activated sepiolite powder for later use; 2, dispersing the acid-activated sepiolite powder, obtained in the step 1, in ethylene glycol to obtain dispersion liquid, adding trivalent iron salt, divalent iron salt, hexamethylenetetramine, biochar, humic acid and an alkali solution into the dispersion liquid, then carrying out ultrasonic mixing uniformly, transferring into a high temperature and high pressure reaction kettle for carrying out a reaction for 4-12h, and then cooling to the room temperature to obtain a mixed solution; 3, enabling the mixed solution, obtained in the step 2, to stand for at least 24h, filtering and removing filtrate, and drying to obtain the sepiolite-loaded humic acid-modified ferroferric oxidecomposite magnetic material. The composite magnetic material prepared by the method has a very good treatment effect for pollutants and heavy metal ions in water, and can be widely applied to the sewage treatment.

Description

technical field [0001] The invention relates to the technical field of preparing magnetic materials for sewage treatment, in particular to a preparation method for composite magnetic materials used for sewage treatment. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical care, catering, etc., and it is also increasingly entering the daily life of ordinary people. [0003] According to the classification of sewage sources, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production sewage includes industrial sewage, agricultural sewage and medical sewage, etc., while domestic sewage is sewage produced in daily life, which refers to a ...

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 Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J20/06B01J20/12B01J20/20B01J20/28009C02F1/288C02F2101/20
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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