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Chlorella W2 capable of removing heavy metal in water body with high heavy metal content and application

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

Inactive Publication Date: 2018-09-18
INST OF AQUATIC LIFE ACAD SINICA
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 ability of microalgae to absorb heavy metal ions. Application in sewage treatment

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  • Chlorella W2 capable of removing heavy metal in water body with high heavy metal content and application
  • Chlorella W2 capable of removing heavy metal in water body with high heavy metal content and application
  • Chlorella W2 capable of removing heavy metal in water body with high heavy metal content and application

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Embodiment Construction

[0024] The principles and features of the present invention are described below in conjunction with examples, which are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0025] 1. Obtaining Chlorella W2

[0026] The chlorella W2 (Chlorella sp.W2) of the present invention is obtained by separating from the water sample containing algae collected in the field, and its cell morphology is as follows: figure 1 As shown, the cells are round or oval, green, without flagella, and nucleated. Based on 18S rDNA binding morphology, the microalgae belonged to the genus Chlorella of the phylum Chlorella. The microalgae was deposited in the China Center for Type Culture Collection (CCTCC) of Wuhan University in Wuhan City, Hubei Province, China on November 27, 2017. The preservation number is CCTCC NO: M2017740, named Chlorella W2, and the Latin scientific name is Chlorella sp. .W2.

[0027] 2. Tolerance of Chlorella W2 to heavy...

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Abstract

The invention relates to chlorella capable of removing heavy metal in a water body with a high heavy metal content. The chlorella is preserved in China Center for Type Culture Collection on November 27, 2017, and the preservation Number is CCTCC NO: M2017740. The chlorella W2 has high tolerance to heavy metal ions in a culturing water body and very high removal rate for Cu, Zn, Ni, Co, Cr and Pb when growing in the water body with the high heavy metal content, and the tolerance and removal rate of the chlorella W2 are far higher than the tolerance and removal rate of most microalgae for removing the heavy metal at present, so that the chlorella W2 is particularly suitable for treating a polluted water body with a relatively high heavy metal content. Besides, when used for removing the heavy metal, the chlorella W2 can further be used for removing nutrient substances such as N and P in the water body, thereby preventing the danger of water body eutrophication.

Description

technical field [0001] The invention relates to the fields of microalgae cultivation and sewage treatment, and more particularly relates to a chlorella capable of removing heavy metals in water bodies with high heavy metal content and applications thereof. 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 bodies, the traditional methods mainly include physical, chemical and biological methods, including precipitation method, chelating resin method, polymer trapping agent method, natural zeolite adsorption method, membrane technology, activated carbon adsorption process, ion exchange method, etc. . These methods have better purification effects, but the process is complicated, the operation is cumbersome, the cost is high, and it is not suitable fo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12C02F3/32C12R1/89C02F101/20C02F101/22
CPCC02F3/322C02F2101/20C02F2101/22C12N1/125C12R2001/89
Inventor 王强陈辉何晨柳汪杰陈为先
Owner INST OF AQUATIC LIFE ACAD SINICA