Chlorella w1 capable of removing heavy metals in water with high heavy metal content and its application

A technology of heavy metals and chlorella, applied in water pollutants, unicellular algae, biological water/sewage treatment, etc., can solve problems such as poor tolerance, limited application of microalgae, limited adsorption efficiency of heavy metal ions, etc., to achieve The effect of preventing the danger of eutrophication

Active Publication Date: 2022-07-26
ALGAEPRO BIOTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although many microalgae have a certain ability to adsorb heavy metal ions, the current adsorption efficiency of microalgae to heavy metal ions is limited, and many microalgae have poor tolerance to heavy metal ions, which greatly limits the use of microalgae in sewage. Applications in progress

Method used

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  • Chlorella w1 capable of removing heavy metals in water with high heavy metal content and its application
  • Chlorella w1 capable of removing heavy metals in water with high heavy metal content and its application
  • Chlorella w1 capable of removing heavy metals in water with high heavy metal content and its application

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Embodiment Construction

[0025] The principles and features of the present invention will be described below with reference to examples. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

[0026] 1. Acquisition of Chlorella W1

[0027] Chlorella sorokiniana W1 of the present invention is obtained by separating from water samples containing algae collected in the field, and its cell shape is as follows figure 1 As shown, cells are round or oval, green, aflagellate, and nucleated. It was identified by 18S rDNA sequencing that the microalgae belonged to the Chlorella genus of the Chlorophyta phylum. The microalgae has been deposited in the China Center for Type Culture Collection (CCTCC) of Wuhan University, Wuhan City, Hubei Province, China on February 22, 2017. Chlorella sorokiniana W1, Latin name Chlorella sorokiniana W1.

[0028] 2. Tolerance of Chlorella W1 to heavy metals

[0029] After activating Chlorella W1 in a small Erlenmeyer...

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Abstract

The present invention relates to a kind of chlorella that can remove heavy metals in water bodies with high heavy metal content. The Chlorella W1 of the present invention has high tolerance to heavy metal ions in the culture water body, and when growing in the water body containing high heavy metal content, it has a high removal rate for Zn, Ni, Cd, Co, and Cr. And the removal rate of Cd is as high as about 87%, which is much higher than the removal efficiency of most microalgae currently used to remove heavy metals, so it is especially suitable for the treatment of polluted water with high Cd content. Besides, while removing heavy metals, the Chlorella W1 of the present invention can also remove nutrients such as N and P in the water body, so as to prevent the danger of eutrophication of the water body.

Description

technical field [0001] The invention relates to the field of microalgae cultivation and sewage treatment, and more particularly, to a chlorella capable of removing heavy metals in water bodies with high heavy metal content and its application. Background technique [0002] The amount of heavy metals discharged by humans to the environment is increasing day by day, which not only seriously pollutes the soil and water environment, but also causes great harm to human health. For the treatment of heavy metal polluted water, the traditional methods mainly include physical, chemical and biological methods, including precipitation method, chelating resin method, polymer collector method, natural zeolite adsorption method, membrane technology, activated carbon adsorption process, ion exchange method, etc. . The purification effect of these methods is relatively good, but the process flow is complicated, the operation is cumbersome, the cost is high, and it is not suitable for large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/12C02F3/32C12R1/89C02F101/20C02F101/22
CPCC02F3/322C02F2101/20C02F2101/22C12R2001/89C12N1/125
Inventor 王强陈为先
Owner ALGAEPRO BIOTECH CO LTD
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