Magnetic biological material capable of adsorbing uranium (VI) in aqueous solution and preparation method of magnetic biological material

A technology of biomaterials and aqueous solutions, applied in the field of environmental biotechnology applications
CN104941592AInactive Publication Date: 2015-09-30EAST CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
EAST CHINA UNIV OF TECH
Publication Date
2015-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a magnetic biological material capable of adsorbing uranium (VI) in an aqueous solution and a preparation method of the magnetic biological material. The magnetic biological material has the particular name of gene recombinant saccharomyces cerevisiae microsphere, which is obtained by mixing human liver metallothionein gene recombinant saccharomyces cerevisiae with a ferromagnetic fluid and immobilizing by sodium alginate and calcium chloride; wherein the mixing ratio is that the mass ratio of gene recombinant saccharomyces cerevisiae bacteria to the ferromagnetic fluid is 10:1. The magnetic gene recombinant saccharomyces cerevisiae microsphere has such characteristics of gene recombinant saccharomyces cerevisiae as high uranium (VI) adsorption capacity, low adsorption cost, recyclable biomass and no secondary pollution, and is relatively convenient and rapid to recycle, thereby greatly enhancing the recycling ratio, reducing the uranium pollution degree, and meanwhile promoting the uranium resource recycling actively.
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Description

technical field

[0001] The invention relates to a magnetic biological material for absorbing uranium (VI) in aqueous solution and a preparation method thereof, belonging to the field of environmental biotechnology application. Background technique

[0002] Biosorption refers to the process of making heavy metal ions adsorbed by biological cells through a series of biochemical actions. Studies have shown that a variety of microorganisms are used for the biosorption of heavy metal ions, including algae, bacteria, fungi, and yeast. Among them, Saccharomyces cerevisiae has been shown to be effective on Cu 2+ 、Cr 3+ , Pb 2+ , Hg 2+ 、Cd 2+ 、As 3+ And many other metal ions have strong adsorption capacity, and at the same time have the excellent characteristics of safety, easy cultivation and growth. Microbial adsorption has low cost, high efficiency, reusable biomass, and no secondary pollution. It has broad application prospects in treating uranium-containing wastewater and...

Claims

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