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

Dunaliella salina capable of adsorbing heavy metals as well as application and preparation method of dunaliella salina and application of dunaliella salina in sea salt preparation

A technology for adsorbing heavy metals and salina, which is applied in the field of microbial engineering, can solve problems such as inability to adsorb heavy metals, and achieve good governance effects, low environmental pollution, and low energy consumption

Pending Publication Date: 2020-08-11
唐山市银海食盐有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of salt algae that adsorbs heavy metals, which solves the problem that biosorbents cannot adsorb other heavy metals except copper, chromium, mercury, etc.;

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
  • Dunaliella salina capable of adsorbing heavy metals as well as application and preparation method of dunaliella salina and application of dunaliella salina in sea salt preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Dunaliella salina with heavy metal adsorption

[0040] A type of salt algae that adsorbs heavy metals. It contains extracellular polysaccharides, proteins and fats. Among them, the mass of protein accounts for 24%-74% of the total mass of Dunaliella salina, and the mass of extracellular polysaccharides accounts for 2% of the total mass of Dunaliella salina. 16%; extracellular polysaccharides, proteins and fats form a network structure on the cell wall, the network structure has a certain negative charge, and has a large surface area and viscosity, which can enrich heavy metals through physical adsorption, and at the same time, Dunaliella cell wall The network structure on it has halogens, amino groups, amide groups, carbonyl groups, aldehyde groups, hydroxyl groups, mercaptans, thioethers, which can chemically react with heavy metal ions, thereby playing a role of chemical adsorption. At the same time, the cell membrane of the above-mentioned Dunaliella salina al...

Embodiment 2

[0041] Example 2 A method for purifying seawater by Dunaliella salina that adsorbs heavy metals

[0042] Utilizing the heavy metal-adsorbing Dunaliella salina provided in Example 1 can enrich the heavy metal ions in seawater through the above-mentioned dual adsorption of physical adsorption and chemical adsorption, thereby purifying the seawater. The specific method of purifying seawater is as follows:

[0043] c1) Sea water testing before purification

[0044] Take 20mL of Baume 3°C seawater from the tide pool, and use ICP-MS to detect the seawater before purification. The seawater before purification contains vanadium 11.625μg / L, chromium 0.483μg / L, cobalt 4.062μg / L, Nickel 2.011μgmL, copper 4.612μg / L, arsenic 19.136μg / L, strontium 887.08μg / L, molybdenum 0.546μg / L, silver 0.004μg / L, cadmium 0.003μg / L, gold 0.015μg / L, lead 0.03μg / L;

[0045] c2) Seawater detection after the adsorption and purification of Dunaliella salina

[0046] Take the Dunaliella salina in Example 1 and put it ...

Embodiment 3

[0048] Example 3 A preparation method of Dunaliella salina with heavy metal adsorption

[0049] A method for preparing the heavy metal-adsorbing Dunaliella salina described in embodiment 1, including the following steps in sequence:

[0050] a1) Take the Dunaliella wild strain as the starting algae strain, put the culture medium in the petri dish, put 3mL of the Dunaliella wild strain in the logarithmic growth phase into 3mL medium at 3000lx, temperature 25±1℃, light The dark cycle is 12h L / 12h D in a light incubator for light culture, and the culture cycle is 5 times; among them, the wild strain of Dunaliella is from the School of Environment and Life Sciences, Dalian University of Technology; the culture medium includes saturated brine and is in saturated brine Add 0.3g / L NaHCO 3 , 0.50g / L of NH 4 NO 3 , 0.08g / L of KH 2 PO 4 , 0.06mg / L of VB 1 , 2.0μg / L of VB 12 ;

[0051] a2) Choose three 30W UV lamps as the UV mutagenesis light source. The UV mutagenesis adopts dark operation, 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
Adsorption capacityaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses dunaliella salina capable of adsorbing heavy metals, which has extracellular polysaccharide, protein and fat, the extracellular polysaccharide, the protein and the fat form a net-shaped structure on cell walls, and the net-shaped structure has negative charges, has viscosity, and has halogen, amino, acylamino, carbonyl, aldehyde group, hydroxyl, mercaptan and thioether. Dunaliella salina can enriche heavy metal ions in seawater through double adsorption effects of chemical adsorption and physical adsorption, and the seawater is purified. The invention discloses the dunaliella salina capable of adsorbing heavy metals. According to the dunaliella salina, the content of extracellular polysaccharide and protein is increased, meanwhile, different chemical functional groups are increased, then various heavy metal ions in seawater are effectively enriched through the double adsorption effects of chemical adsorption and physical adsorption, and the preparation and use method of the dunaliella salina is low in cost, small in energy consumption, good in treatment effect and small in environmental pollution. Meanwhile, the method provided by the invention improves thequality of source seawater for sea salt production, and improves the quality of sea salt.

Description

Technical field [0001] The invention belongs to the field of microbial engineering, and relates to a salt algae, specifically a salt algae that adsorbs heavy metals. The invention also provides an application of a salt algae that adsorbs heavy metals. The invention also provides a heavy metal adsorbent. For the preparation method of Dunaliella salina, the present invention also provides a method for preparing sea salt by using the aforementioned Dunaliella salina which adsorbs heavy metals. Background technique [0002] Natural and pure sea salt contains antioxidants that are beneficial to health. It is rich in potassium, iron and copper, and contains more than 70 kinds of trace elements. With the development of coastal cities and the process of industrialization, the continuous discharge of industrial, agricultural and domestic sewage has caused the quality of coastal seawater to decline. The heavy metal pollution in offshore seawater has long residual toxicity, accumulation, d...

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): B01J20/24B01J20/30C02F1/28C01D3/06C01D3/14C12N1/12C12N13/00C02F101/20C12R1/89
CPCB01J20/24C02F1/286C01D3/06C01D3/14C12N1/12C12N13/00C02F2101/20
Inventor 王德义王秀娟齐增江孙建民姚银红乔山林
Owner 唐山市银海食盐有限公司
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