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

Magnetic aerobic particle sludge-graphene oxide-multiwalled carbon nanotube composite adsorbent preparation and application thereof

A technology of aerobic granular sludge and multi-walled carbon nanotubes, which can be applied to alkali metal compounds, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. and other problems, to achieve the effect of simple preparation process, great application prospects and efficient removal

Inactive Publication Date: 2017-06-30
UNIV OF JINAN
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, printing and dyeing wastewater is developing in the direction of anti-photolysis, anti-oxidation, and anti-biodegradation, making it more and more difficult for these printing and dyeing wastewater to be treated by general water treatment systems
The discharge of dye wastewater into the environmental water body will reduce the transparency of the water body, consume a large amount of oxygen in the water, cause the water body to be hypoxic, affect the growth of aquatic organisms and microorganisms, destroy the self-purification of the water body, and have certain biological toxicity

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

[0020] Example 1 Preparation method of magnetic aerobic granular sludge-graphene oxide-multi-walled carbon nanotube composite adsorbent

[0021] (1) Preparation of aerobic granular sludge powder: The aerobic granular sludge cultivated in the laboratory SBR reactor was washed with ultrapure water for 3 to 5 times, then dried at 100 to 110 °C, ground, 60 to 160 Mesh sieve to obtain dry sludge powder;

[0022] (2) Fe 3 o 4 Preparation: 0.5 g FeCl 3 •6H 2 O was dissolved in 10 mL of ethylene glycol, then 3 g of NaAc and 5 mL of ethylenediamine were added, the mixture was vigorously stirred for 20 min, then placed in a reaction vessel, heated to 200 °C and kept for 7 h, after cooling to room temperature, the black The solid is repeatedly washed with ultrapure water until it is neutral, and then Fe is obtained after drying. 3 o 4 powder;

[0023] (3) Preparation of graphene oxide: Mix 0.3 g of graphite and 1.5 g of potassium permanganate, add 30 mL of concentrated sulfuric ac...

Embodiment 2

[0026] Example 2 Preparation method of magnetic aerobic granular sludge-graphene oxide-multi-wall carbon nanotube composite adsorbent

[0027] (1) Preparation of aerobic granular sludge powder: The aerobic granular sludge cultivated in the laboratory SBR reactor was washed with ultrapure water for 3 to 5 times, then dried at 100 to 110 °C, ground, 60 to 160 Mesh sieve to obtain dry sludge powder;

[0028] (2) Fe 3 o 4 Preparation: 1 g FeCl 3 •6H 2O was dissolved in 20 mL of ethylene glycol, then 4 g of NaAc and 10 mL of ethylenediamine were added, the mixture was vigorously stirred for 30 min, then placed in a reaction vessel, heated to 200 °C for 8 h, cooled to room temperature, and the black The solid is repeatedly washed with ultrapure water until it is neutral, and then Fe is obtained after drying. 3 o 4 powder;

[0029] (3) Preparation of graphene oxide: Mix 0.4 g of graphite and 1.8 g of potassium permanganate, add 35 mL of concentrated sulfuric acid and 4 mL of p...

Embodiment 3

[0032] Example 3 Preparation method of a magnetic aerobic granular sludge-graphene oxide-multi-walled carbon nanotube composite adsorbent

[0033] (1) Preparation of aerobic granular sludge powder: The aerobic granular sludge cultivated in the laboratory SBR reactor was washed with ultrapure water for 3 to 5 times, then dried at 100 to 110 °C, ground, 60 to 160 Mesh sieve to obtain dry sludge powder;

[0034] (2) Fe 3 o 4 Preparation: 1.5 g FeCl 3 •6H 2 O was dissolved in 30 mL of ethylene glycol, then 5 g of NaAc and 15 mL of ethylenediamine were added, the mixture was vigorously stirred for 40 min, then placed in a reaction vessel, heated to 200 °C for 9 h, cooled to room temperature, and the black solid Repeatedly wash with ultrapure water until neutral, then dry to get Fe 3 o 4 powder;

[0035] (3) Preparation of graphene oxide: Mix 0.5 g of graphite and 2.0 g of potassium permanganate, add 40 mL of concentrated sulfuric acid and 5 mL of phosphoric acid, and place t...

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
Login to View More

Abstract

The invention relates to a magnetic aerobic particle sludge-graphene oxide-multiwalled carbon nanotube composite adsorbent preparation and an application thereof. According to the invention, aerobic particle sludge, Fe3O4, graphene oxide and multiwalled carbon nanotube are composited for preparing the magnetic aerobic particle sludge-graphene oxide-multiwalled carbon nanotube composite adsorbent. Introduction of the aerobic particle sludge adds the adsorption bites of the adsorbent, by combing the large specific surface area of graphene oxide, abundant surface function group of the multiwalled carbon nanotube, and magnetic separation advantage of ferriferrous oxide, so that the biological adsorbent which has the advantages of simple process, low cost, high adsorption capacity, easy separating, reuse and no secondary pollution can be obtained, and the composite material can effectively process the dye waste water.

Description

technical field [0001] The invention relates to the preparation and application of a magnetic aerobic granular sludge-graphene oxide-multi-wall carbon nanotube composite adsorbent, which is suitable for the removal of cationic dyes and belongs to the technical field of composite material preparation and sewage treatment. Background technique [0002] In recent years, the rapid development of industrialization has caused many environmental pollution problems, coupled with serious water pollution, exacerbated the shortage of water resources. Among them, the wastewater generated by the printing and dyeing industry has the characteristics of large discharge, strong pollution and refractory biodegradation. At present, printing and dyeing wastewater is developing in the direction of anti-photolysis, anti-oxidation, and anti-biodegradation, making it more and more difficult for these printing and dyeing wastewater to be treated by general water treatment systems. The discharge of ...

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
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F101/30
CPCB01J20/02B01J20/06B01J20/20B01J20/205B01J20/24B01J20/28009B01J2220/4806B01J2220/4887C02F1/28C02F1/281C02F2101/308
Inventor 刘婷杜斌魏琴胡丽华魏东王晓东闫涛
Owner UNIV OF JINAN
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