Check patentability & draft patents in minutes with Patsnap Eureka AI!

Preparation method of manganese oxide-loaded Pseudocladon algae composite material for removing cadmium in water

A manganese oxide, composite material technology, applied in chemical instruments and methods, water pollutants, other chemical processes, etc., to achieve the effects of wide distribution, strong viability, and high fixing efficiency of heavy metals

Active Publication Date: 2018-10-02
HUNAN AGRICULTURAL UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a method for preparing manganese oxide-loaded Pseudocladon algae composite material that removes cadmium in water, aiming at the current situation of heavy metal compound pollution in Hunan Province, so as to simultaneously address the problem of cadmium and manganese pollution

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
  • Preparation method of manganese oxide-loaded Pseudocladon algae composite material for removing cadmium in water
  • Preparation method of manganese oxide-loaded Pseudocladon algae composite material for removing cadmium in water
  • Preparation method of manganese oxide-loaded Pseudocladon algae composite material for removing cadmium in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 6-10 g of the cultured Pseudocladon algae and put them in the nutrient solution at room temperature. A certain amount of manganese chloride solution is added to the nutrient solution. At this time, in the nutrient solution, the ratio of the fresh weight of algae to manganese is 3.8 g / mmol. Place it in the incubator for 10 hours to make the pseudocladon body turn brown and sink. The nutrient solution was filtered and the filter residue was transferred to a 50ml centrifuge tube. Add ethanol to shake and wash for 10 minutes, then centrifuge at 8000 rpm for 10 minutes, and remove the supernatant. This washing process was repeated three times. Then add ultrapure water, and the washing steps are the same as above, and repeat three times. Freeze the cleaned product and put it into a freeze dryer for vacuum pumping for 20 hours to dry it. Take out and mash to obtain a sample.

[0025] Add 0.02g of sample to 100ml of aqueous solution with cadmium ion concentration of 1...

Embodiment 2

[0027] Take 6-10 g of the cultured Pseudocladon algae and put them in the nutrient solution at room temperature. A certain amount of manganese chloride solution is added to the nutrient solution. At this time, in the nutrient solution, the ratio of the fresh weight of algae to manganese is 3.8 g / mmol. Place it in the incubator for 10 hours to make the pseudocladon body turn brown and sink. The nutrient solution was filtered and the filter residue was transferred to a 50ml centrifuge tube. Add ethanol to shake and wash for 10 minutes, then centrifuge at 8000 rpm for 10 minutes, and remove the supernatant. This washing process was repeated three times. Then add ultrapure water, and the washing steps are the same as above, and repeat three times. Freeze the cleaned product and put it into a freeze dryer for vacuum pumping for 20 hours to dry it. Take out and mash to obtain a sample.

[0028] Add 0.02g sample to 100ml of aqueous solution with cadmium ion concentration of 10pp...

Embodiment 3

[0030] Take 6-10 g of the cultured Pseudocladon algae and put them in the nutrient solution at room temperature. A certain amount of manganese chloride solution is added to the nutrient solution. At this time, in the nutrient solution, the ratio of the fresh weight of algae to manganese is 3.8 g / mmol. Place it in the incubator for 10 hours to make the pseudocladon body turn brown and sink. The nutrient solution was filtered and the filter residue was transferred to a 50ml centrifuge tube. Add ethanol to shake and wash for 10 minutes, then centrifuge at 8000 rpm for 10 minutes, and remove the supernatant. This washing process was repeated three times. Then add ultrapure water, and the washing steps are the same as above, and repeat three times. Freeze the cleaned product and put it into a freeze dryer for vacuum pumping for 20 hours to dry it. Take out and mash to obtain a sample.

[0031] Prepare 100ml of cadmium ion aqueous solution, the concentration of cadmium ion is 1...

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 relates to the farmland irrigation water purification technology, in particular to a preparation method for a manganese oxide loaded Scytonema Agardh composite material for removing cadmium in water.The preparation method includes the steps that cultured Scytonema Agardh is taken and placed in a nutrient solution at normal temperature, a manganese salt solution is added to the nutrient solution, the ratio of the fresh weight of a Scytonema Agardh body to manganese is 0.76-7.6 g / mmol, the mixture is placed for 10 hours in a culture box, and the Scytonema Agardh body is brown and settles; the nutrient solution is filtered, filter residues are transferred into a centrifugal tube, ethyl alcohol is added for vibratory washing for 10 min, then centrifugal separation is conducted for 10 min at the rotating speed of 8,000 rpm, supernatant is removed, and the washing process is conducted three times; ultrapure water and ethyl alcohol are added for vibratory washing for 10 min, centrifugal separation is conducted for 10 min at the rotating speed of 8,000 rpm, supernatant is removed, and the process is also repeated three times; finally the washed product is frozen and placed in a freeze drier for vacuum air exhaust for 20 hours to be exhausted up, the product is taken out and smashed, and then the composite material is obtained.

Description

technical field [0001] The invention relates to the purification technology of farmland irrigation water, in particular to a preparation method of a manganese oxide-loaded pseudoclad algae composite material for removing cadmium in water. Background technique [0002] Heavy metal pollution of cultivated land in my country is serious. Due to the long-term input of heavy metal pollutants into the cultivated land system by mine smelting and chemical enterprises in various forms, coupled with the entry of heavy metals in fertilizers, a large area of ​​cultivated land in my country has been polluted by heavy metals, which has seriously threatened the safety of my country's food and other agricultural products. According to statistics, the area of ​​cultivated land polluted by heavy metals in my country is nearly 20 million hm 2 , accounting for about 1 / 5 of the total cultivated land area. [0003] Taking Lanshan County, Hunan Province as an example, the cadmium content in irrig...

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 Patents(China)
IPC IPC(8): C02F1/28B01J20/30B01J20/22C02F101/20
CPCB01J20/06B01J20/22B01J2220/46C02F1/286C02F2101/20
Inventor 彭亮李智义曾清如铁柏清邵继海顾继东
Owner HUNAN AGRICULTURAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com