Chlorella W5 capable of removing heavy metal in water body with high heavy metal content and application

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

Inactive Publication Date: 2018-09-28
INST OF AQUATIC LIFE ACAD SINICA
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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 W5 capable of removing heavy metal in water body with high heavy metal content and application
  • Chlorella W5 capable of removing heavy metal in water body with high heavy metal content and application
  • Chlorella W5 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 W5

[0026] Chlorella sp.W5 of the present invention is obtained by separating from the algae-containing water sample 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, Wuhan City, Hubei Province, China on November 27, 2017. The preservation number is CCTCC NO: M2017741, named Chlorella W5, and the Latin scientific name is Chlorella sp. .W5.

[0027] 2. Tolerance of Chlorella W5 to heavy metals

[0028] Aft...

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Abstract

The invention provides chlorella capable of removing heavy metals in a water body with high heavy metal content. The chlorella is preserved in the China Center for Type Culture Collection (CCTCC) on November 27, 2017. A preservation number is CCTCC NO: M2017741. The chlorella W5 has the high tolerability to heavy metal ions in a culture water body, and has a higher removal rate to Cu, Zn, Ni, Co,Cr and Pb while grown in the water body with the high heavy metal content. The removal rate is considerably higher than that of most microalgae used for removing the heavy metals, so the chlorella isparticularly suitable for treating polluted water with the higher heavy metal content. In addition, while the heavy metals are removed, the chlorella W5 is capable of removing nutrient substances of N, P and the like in the water body, and preventing a risk of entrophication of the water body.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12C02F3/32C02F9/14C12R1/89C02F101/20C02F101/22
CPCC02F1/001C02F3/322C02F2101/20C02F2101/22C12N1/125C12R2001/89
Inventor 王强陈辉何晨柳汪杰陈为先
Owner INST OF AQUATIC LIFE ACAD SINICA
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