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

Composite adsorption material and preparation method and application thereof, and recycling method of composite adsorption material

An adsorption material and composite technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, alkali metal compounds, etc. The effect of high recycling rate

Pending Publication Date: 2021-11-30
INST OF MICROBIOLOGY JIANGXI ACADEMY OF SCI
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the traditional regeneration method is mainly thermal regeneration technology. Although the thermal regeneration technology can remove the adsorbed persistent organic pollutants, it will destroy the structure of the adsorbent during thermal regeneration, which will make the adsorption performance of the recovered adsorbent Reduced, low recycling rate

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

preparation example Construction

[0035] The present invention also provides a preparation method of the composite adsorption material described in the above technical solution, comprising the following steps:

[0036] After mixing the carrier and the metal salt solution, calcining in a protective atmosphere to obtain a carrier loaded with metal ions;

[0037] The composite adsorption material is obtained by growing magnetic particles on the surface of the carrier loaded with metal ions.

[0038] In the present invention, unless otherwise specified, all raw materials are commercially available products well known to those skilled in the art.

[0039] In the invention, after the carrier and the metal salt solution are mixed, they are calcined in a protective atmosphere to obtain the carrier loaded with metal ions.

[0040] In the present invention, the concentration of the metal salt solution is preferably 0.1-2.0 mol / L, more preferably 0.5-1.8 mol / L, more preferably 1.0-1.5 mol / L.

[0041] In the present inv...

Embodiment 1

[0089] Mix 15g of bentonite with 150mL of 0.1mol / L sodium chloride solution, stir at 25°C for 3 hours at a speed of 300r / min, then filter, dry and grind in sequence to obtain pretreated bentonite;

[0090] 10g of pretreated bentonite and 100mL of 0.5mol / L Cu-containing 2+ , Mn 2+ and Co 2+ mixed with the salt solution, then stirred at 80°C for 2h at a speed of 150rpm, dried at a temperature of 60°C for 24h after centrifugation, and roasted the dried material at 200°C for 1h in a vacuum tube furnace, then dried at 500°C Lower roasting for 1.5h to obtain bentonite loaded with copper ions, manganese ions and cobalt ions;

[0091] 8 g of bentonite loaded with copper ions, manganese ions and cobalt ions and 50 mL of Fe-containing 2+ and Fe 3+ solution (where Fe 2+ and Fe 3+ The molar ratio is preferably 1:2) After mixing, at a speed of 200rpm, drip ammonia water with a mass concentration of 25% at a speed of 50mL / h to a pH value of 9 of the reaction solution, and then continu...

Embodiment 2

[0094] Mix 20g of biochar with 400mL of 0.1mol / L calcium nitrate solution, stir at 25°C for 5h at a speed of 200r / min, then filter, dry and grind in sequence to obtain pretreated activated carbon;

[0095] 10g of pretreated biochar and 50mL of 0.5mol / L Zn-containing 2+ Mix the salt solution, then stir at 80°C for 3h at a speed of 200rpm, and dry at 80°C for 18h after centrifugation. The dried material is placed in a vacuum tube furnace and roasted at 200°C for 0.5h. Calcined at 550°C for 2 hours to obtain activated carbon loaded with zinc ions;

[0096] Mix 5g of biochar loaded with zinc ions and 50mL of 1mol / L Fe-containing 2+ and Fe 3+ solution (where Fe 2+ and Fe 3+ The molar ratio is preferably 1:2) After mixing, at a speed of 250rpm, dropwise add a sodium hydroxide solution with a concentration of 0.1mol / L at a speed of 80mL / h until the pH of the reaction solution is above 9, and then continue to stir After 0.5h, the reaction solution was centrifuged, and the separat...

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

PropertyMeasurementUnit
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of sewage purification, and particularly relates to a composite adsorption material and a preparation method and application thereof, and a recycling method of the composite adsorption material. The composite adsorption material provided by the invention comprises a carrier, metal ions and magnetic particles, wherein the metal ions and the magnetic particles are loaded on the surface of a carrier or in a pore structure of the carrier. After the composite adsorption material provided by the invention adsorbs persistent organic pollutants in sewage, the persistent organic pollutants are separated from the sewage by utilizing the magnetic particles loaded on the carrier in a magnetic separation manner, so the persistent organic pollutants in the sewage are removed; the metal ions on the carrier can catalyze the oxidative degradation of the persistent organic pollutants, and decompose and remove the persistent organic pollutants on the composite adsorption material; and after oxidative degradation, the composite adsorption material can be recycled and reused.

Description

technical field [0001] The invention belongs to the technical field of sewage purification, and in particular relates to a composite adsorption material, a preparation method and application thereof, and a recovery and reuse method for the composite adsorption material. Background technique [0002] Persistent organic pollutants (POPs) have the characteristics of refractory, long-distance transport, bioaccumulation, and carcinogenic mutagenicity. extremely important and urgent. [0003] Traditional physical methods to remove persistent organic pollutants mainly include adsorption, flocculation precipitation and membrane separation methods, which use the interaction between materials and persistent organic pollutant molecules to achieve the purpose of separating and removing pollutants. For the adsorption method, the commonly used adsorbent is mainly bentonite. On the one hand, it can adsorb persistent organic pollutants through electrostatic action, and at the same time, it...

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): B01J20/20B01J20/28B01J20/30C02F1/28C02F1/48C02F1/72C02F101/30
CPCB01J20/12B01J20/20B01J20/0244B01J20/0237B01J20/0248B01J20/0225B01J20/0222B01J20/08B01J20/28009C02F1/281C02F1/48C02F1/725C02F2101/30
Inventor 李晓晖艾仙斌李亮王玺洋辛在军孙小艳
Owner INST OF MICROBIOLOGY JIANGXI ACADEMY OF SCI
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