Efficient adsorbent based on michelia chapensis leaves and preparation method thereof

An adsorbent, leaf technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc. The effect of low energy consumption, simple preparation process and easy operation

Inactive Publication Date: 2016-10-12
SOUTHWEST PETROLEUM UNIV
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of burning dead leaves, a large amount of harmful gases (such as CO, NO x etc.), at the same time, dust is produced, causing severe weather su

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
  • Efficient adsorbent based on michelia chapensis leaves and preparation method thereof
  • Efficient adsorbent based on michelia chapensis leaves and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] (1) Break the Lechang Michelia leaves into powder, sieve them, and take the powder of leaves below 300 microns for use;

[0019] (2) Soak the leaf powder with a sodium hydroxide solution with a mass concentration of 5%, and keep it at 60°C for 1 hour;

[0020] (3) After washing the powder soaked in step (2) repeatedly with water until it is colorless, dry the powder at 80°C;

[0021] (4) Weigh 5g leaf powder and 5g sodium hydroxide powder and mix them, add 250mL of water to soak the solid matter, stir evenly, and then stand for 1 hour;

[0022] (5) After washing the solid substance in step (4) repeatedly with water until it is colorless, it is dried at 80°C until the solid no longer loses weight, and the adsorbent product can be obtained.

[0023] At room temperature, the adsorption performance was evaluated: respectively adding 0.05 g of adsorbent to 20 mL of methylene blue solution with initial concentrations of 5 ppm, 10 ppm, and 20 ppm. Take 3mL solution e...

Example Embodiment

[0023] At room temperature, the adsorption performance was evaluated: respectively adding 0.05 g of adsorbent to 20 mL of methylene blue solution with initial concentrations of 5 ppm, 10 ppm, and 20 ppm. Take 3mL solution every 10min to test its absorbance value. After 1 hour, the color of the methylene blue solution became significantly lighter. figure 1 It is the curve of absorbance change with time during the adsorption process of the adsorbent obtained in Example 1. Example 2:

[0024] (1) Break Lechang Michelia leaves into powder, sieve them, and take leaf powder with a size below 800 microns for use;

[0025] (2) Soak the leaf powder with a sodium hydroxide solution with a mass concentration of 15%, and keep it at 40°C for 1 hour;

[0026] (3) After the powder soaked in step (2) is washed repeatedly with water until it is colorless, the powder is dried at 90°C;

[0027] (4) Weigh 5g of leaf powder and 10g of sodium hydroxide powder and mix them, add 350mL of water to soak the ...

Example Embodiment

[0029] At room temperature, the adsorption performance was evaluated: respectively add 0.05 g of adsorbent to 20 mL of rhodamine B solution with initial concentrations of 5 ppm, 10 ppm, and 20 ppm. Take 3mL solution every 10min to test its absorbance value. After 1 hour, the color of the rhodamine B solution became significantly lighter. figure 2 It is the curve of absorbance change with time during the adsorption process of the adsorbent obtained in Example 2. Example 3:

[0030] (1) Break Lechang Michelia leaves into powder, sieve them, and take leaf powder with a size below 50 microns for use;

[0031] (2) Soak the leaf powder with a sodium carbonate solution with a mass concentration of 3%, and keep it at 80°C for 0.5 hours;

[0032] (3) After washing the powder soaked in step (2) repeatedly with water until it is colorless, dry the powder at 70°C;

[0033] (4) Weigh 5g of leaf powder and 15g of sodium carbonate powder and mix them, add 400mL of water to soak the solid matter,...

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 high-efficiency adsorbent based on Lechang Michelia leaves and a preparation method thereof. The adsorbent is a product obtained by simple alkali washing, water washing, and alkali modification using Lechang Michelia leaves as raw materials. The adsorbent of the invention has excellent adsorption effect on various cationic dyes such as methylene blue, rhodamine B, malachite green and crystal violet, and has a high adsorption rate, and can be used for the adsorption of organic dye pollutants in sewage. Compared with the prior art, the adsorbent of the present invention uses agricultural and forestry wastes as raw materials, obtains products through simple and feasible treatment methods, realizes the goal of treating waste with waste, and has the advantages of environmental protection, low energy consumption, and high efficiency. Suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of dye sewage treatment, in particular to preparing an efficient dye adsorbent by using agricultural and forestry waste. Background technique [0002] Adsorbents are solid substances that are effective in absorbing certain components from a gas or liquid. At present, commonly used adsorbents are alumina, activated carbon, silica gel, etc. These adsorbents have problems such as high manufacturing cost and high energy consumption. How to prepare adsorbents with excellent performance at low cost is one of the hotspots in the field of pollutant treatment. On the other hand, due to the action of metabolism, plants will produce dead leaves and fallen leaves every year. At present, the method of incineration or landfill is mainly used to deal with dead leaves and fallen leaves. However, in the process of burning dead leaves, a large amount of harmful gases (such as CO, NO x etc.), while generating dust, causing...

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): B01J20/24B01J20/30C02F1/28
CPCB01J20/24B01J2220/4806B01J2220/4825C02F1/286C02F2101/308
Inventor 谢娟王虎刘畅唐鋆磊段明王莹莹
Owner SOUTHWEST PETROLEUM 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap