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

Composite adsorption material for removing arsenic ions from natural water and preparation method for adsorption material

A composite adsorption material and adsorption material technology, applied in the field of waste water treatment in environmental protection, can solve the problems of complex process and high preparation cost of arsenic ion removal method, and achieve the effect of low cost, simple operation and wide source

Inactive Publication Date: 2013-01-16
CHANGZHOU UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of high preparation cost of the current adsorption materials, the present invention provides a modified spent wheat grains / hydroxyl iron solution composite adsorption material, which can efficiently remove arsenic ions in water
[0007] Another object of the present invention is to solve the problem that the existing method for removing arsenic ions in drinking water is complicated

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

[0021] Weigh 20g of spent wheat grains through high-temperature pretreatment and add 100mL of Ca(OH) with a mass fraction of 8%. 2 Put the solution in a 250mL narrow-mouth glass bottle, shake it to make it gel for 13h, take it out and age it for 1d, wash it with deionized water, then wash it with absolute ethanol, filter it with suction, and put it in a muffle furnace at 300°C Burn in medium for 2 hours, take it out and cool it, and save it for later use; take an appropriate amount of modified spent wheat grains in a beaker, add distilled water and use a stirrer to fully stir the solution to adjust the solution to pH = 11, then prepare a suspension of 4.5g / L, and suspend it Slowly pour the solution into the 0.001mol / L hydroxy iron ion solution, stir well with a stirrer, stand and stand for 2 months, then centrifuge, discard the supernatant, rinse the obtained sediment several times with distilled water, and Dry and grind at a temperature of 50°C to obtain the adsorption materi...

Embodiment 2

[0024] Weigh 20g of spent wheat grains through high-temperature pretreatment and add 100mL of Ca(OH) with a mass fraction of 8%. 2 Put the solution in a 250mL narrow-mouth glass bottle, shake it to make it gel for 14 hours, take it out and age it for 2 days, wash it with deionized water, then wash it with absolute ethanol, filter it with suction, and put it in a muffle furnace at 300 °C Burn in medium for 3 hours, take it out and cool it, and save it for later use; take an appropriate amount of modified spent wheat grains in a beaker, add distilled water and use a stirrer to fully stir the solution to adjust the solution to pH = 11, then prepare a suspension of 4.5g / L, and suspend it Slowly pour 0.001 mol / L of hydroxy iron ion into the solution, stir well with a stirrer, stand and stand for 3 months, then centrifuge, discard the supernatant and rinse the obtained sediment several times with distilled water, Then dry and grind at a temperature of 55°C to obtain the adsorption m...

Embodiment 3

[0027] Weigh 20g of spent wheat grains through high-temperature pretreatment and add 100mL of Ca(OH) with a mass fraction of 8%. 2 Put the solution in a 250mL narrow-mouth glass bottle, shake it to make it gel for 16 hours, take it out and age it for 3 days, wash it with deionized water, then wash it with absolute ethanol, filter it with suction, and put it in a muffle furnace at 300 °C Burn in medium for 4 hours, take it out and cool it, and save it for later use; take an appropriate amount of modified spent wheat grains in a beaker, add distilled water and use a stirrer to fully stir the solution to adjust the solution to pH = 11, then prepare a suspension of 4.5g / L, and suspend it The solution was slowly poured into 0.001mol / L hydroxy iron ion solution, fully stirred evenly with a stirrer, left to stand for 4 months and then centrifuged, the supernatant was discarded, and the obtained sediment was rinsed with distilled water several times, and placed in Dry and grind at 60°...

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
quality scoreaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite adsorption material for removing arsenic ions from natural water and a preparation method for the adsorption material. Modified spent grains and a hydroxyl iron ion solution are used as raw materials. The method comprises the following steps of: adding spent grains subjected to high temperature treatment into a Ca(OH)2 solution for reacting, gelatinizing, aging, washing by using water and absolute ethanol, performing suction filtering, putting into a muffle furnace for firing, cooling, adding distilled water to prepare suspension, adding the hydroxyl iron ion solution, stirring, standing, washing a lower precipitate, drying, and grinding to obtain the adsorption material which has high adsorption property and can be strongly combined with the arsenic ions in the water. The preparation method is innovative, novel and unique, and the prepared material has a good adsorption effect on the arsenic ions in the water.

Description

technical field [0001] The invention relates to a composite adsorption material for removing arsenic ions in natural water bodies and a preparation method thereof, in particular to advanced treatment of water bodies containing arsenic ions, and belongs to the field of waste water treatment in environmental protection. Background technique [0002] Arsenic is a metalloid that is sometimes classified as a heavy metal because it has many properties similar to heavy metals. A large number of arsenic compounds exist in different forms in water, sediment, soil, plants, marine organisms, and human bodies through chemical processes and biological transformations, and form a cycle among various arsenic compounds. Arsenic is insoluble in water. It is almost not absorbed by organisms after ingestion and is completely excreted. It is generally harmless; however, there are many arsenic salts that are easily soluble in water, such as arsenous anhydride, arsenic anhydride, sodium arsenite,...

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): B01J20/24B01J20/30C02F1/28C02F1/62
Inventor 涂保华雷春生梅宇韬
Owner CHANGZHOU UNIV
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