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

Modified biocarbon composite material and preparation and application thereof

A composite material, biochar technology, applied in water pollutants, other chemical processes, chemical instruments and methods, etc., can solve the problems of single type of biochar surface groups, uneven structure, restricted development, etc., and achieve industrial application The effect of high prospect, stable physical and chemical properties, and low comprehensive utilization rate

Active Publication Date: 2016-11-16
CENT SOUTH UNIV
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structural and functional defects such as single types of surface groups, uneven structure, and difficult dispersion of biochar limit its development in various fields.

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
  • Modified biocarbon composite material and preparation and application thereof
  • Modified biocarbon composite material and preparation and application thereof
  • Modified biocarbon composite material and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Adjust the pH of 500mL of 0.01mol / L aluminum sulfate solution to 5.5 with sodium hydroxide solution, boil and stir for 10min. Grind the sawdust with a vibrating mill, take 5g of the sawdust obtained through a 140-mesh sieve, add it to the boiled aluminum sulfate solution, stir it magnetically for 30 minutes, then stir it at room temperature for 5 hours, filter it with suction, and put it in a constant temperature drying oven at 60°C After drying for 12 hours, carbonize the dried samples. The final temperature of carbonization is 300°C, the heating rate is 5°C / min, and nitrogen is protected. Cool naturally to room temperature to obtain the modified biochar composite material.

Embodiment 2

[0023] Adjust the pH of 500mL of 0.02mol / L aluminum sulfate solution to 6.0 with sodium hydroxide solution, boil and stir for 10min. Grind the sawdust with a vibrating mill, take 5g of the sawdust obtained through a 140-mesh sieve, add it to the boiled aluminum sulfate solution, stir it magnetically for 30 minutes, then stir it at room temperature for 5 hours, filter it with suction, and put it in a constant temperature drying oven at 60°C After drying for 12 hours, carbonize the dried sample. The final temperature of carbonization is 400°C, the heating rate is 5°C / min, and nitrogen is protected. Cool naturally to room temperature to obtain the modified biochar composite material.

Embodiment 3

[0025] Under room temperature conditions, the lead-containing solution that is 80mg / L, 200mg / L and 500mg / L is carried out adsorption reaction with the material prepared by 0.02g embodiment 1 respectively to 20mL concentration, wherein reaction time is 6 hours, the lead ion concentration in the filtrate Measured by an inductively coupled plasma emission spectrometer, the adsorption amounts of lead ions are 76.3mg / g, 190.9mg / g and 453.5mg / g respectively, and the removal rates all reach more than 90%.

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
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modified biocarbon composite material and a preparation and application thereof. A preparation method comprises the following steps: regulating pH of an aluminium sulphate solution to be 5.0-7.0 by using a sodium hydroxide solution; boiling and stirring for 5-30 minutes; adding ground wood bits which are sieved by a sieve with meshes of 140, mixing and stirring; carrying out suction filtering; drying at constant temperature; and carbonizing to obtain the modified biocarbon composite material. The material is simple in preparation technology, simple and convenient to operate, low in cost, stable in physicochemical property and good in adsorption property to lead ions in waste water, and does not cause secondary pollution; and when modified biocarbon treats lead-containing waste water with the initial concentration of 500 mg / L, the absorbing capacity can reach 453.5 mg / g.

Description

technical field [0001] The invention relates to a modified biochar composite material prepared by using sawdust, a preparation method thereof and an application for adsorbing and removing lead ions in waste water, belonging to the technical field of biochar composite materials and their preparation and application. Background technique [0002] Chemical industry, metal smelting and processing production will produce a large amount of lead-containing wastewater. If it is discharged into the water without treatment or if the treatment is not up to standard, it will cause drastic changes in water quality and damage the water ecosystem; and lead-containing pollutants will pass through The water body sediment and aquatic organisms are enriched, and then enter the human body or other animals at the top of the food chain through the food chain to cause lead poisoning. At present, my country's lead pollution is serious, and "blood lead" incidents occur frequently in various places. ...

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): B01J20/20C02F1/28B01J20/30C02F101/20
CPCB01J20/08B01J20/20C02F1/283C02F2101/20
Inventor 杨卫春柴立元周妍琦刘礼彪王海鹰廖骐唐崇俭杨志辉
Owner CENT SOUTH 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