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A method for removing algae by using particulate graphite composite material

A technology of composite materials and particulate graphite, which is applied in the field of algae removal, can solve the problems of high cost of algae removal methods, increase of dissolved organic carbon in water, etc., and achieve increased electronegativity and steric effect, increased stability, and high removal rate Effect

Active Publication Date: 2015-08-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing method for removing algae causes the increase of dissolved organic carbon DOC in water and the high cost of the existing method for removing algae, and provides a method for removing algae using particulate graphite composite material. algae method

Method used

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  • A method for removing algae by using particulate graphite composite material
  • A method for removing algae by using particulate graphite composite material
  • A method for removing algae by using particulate graphite composite material

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specific Embodiment approach 1

[0028] Specific embodiment one: In this embodiment, the method of using particulate graphite composite material to remove algae is applied to the water body in the natural environment, and the following method is used to remove algae:

[0029] When the water body in the natural environment is not polluted by algal blooms, the graphite composite material with a particle size is directly added to the water body in the natural environment at a dosage of 0.1mg / L-40mg / L;

[0030] Or carry out algae removal as follows:

[0031] When algae pollution has broken out in the water body of the natural environment, the graphite composite material with a particle size of 0.1mg / L-80mg / L is directly added to the water body of the natural environment for algae removal.

[0032] In this embodiment, the removal of unexploded algae pollution in water bodies in the natural environment by using the particle size graphite composite material is used to prevent algae outbreaks.

[0033] The water bod...

specific Embodiment approach 2

[0034] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the particulate graphite composite material is composed of one or more of graphite, powdered activated carbon, graphite oxide, graphene or graphene oxide. Made in any proportion; wherein, the mass content of oxygen element in the particulate graphite composite material is not less than 5%, and the mass content of the scale-like substance in the particulate graphite composite material is not less than 15%; the The particle size of the particulate graphite composite material is less than 50 μm; the surface area of ​​the scaly structure in the particulate graphite composite material is less than 2000 μm 2 , the thickness is less than 10 μm; the substance of the scale structure is graphite, graphite oxide, graphene and graphene oxide.

[0035] The particulate graphite composite material described in this embodiment can be used in combination with manganese ions, copper ions or iron ions to elimina...

specific Embodiment approach 3

[0036] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the particulate graphite composite material is added in the form of a suspension or in the form of a solid. Other parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for removing algae by utilizing a graphite composite material with small particle size, relates to an algae removal method, and is used for solving the problem of increment of aquatic dissolved organic carbon (DOC) and high cost of the existing algae removal method during algae removal. In a water body of a natural environment, the graphite composite material with the small particle size is added into the water body of the natural environment without being polluted by algae according to the dosage of 0.1-40mg / L, or the graphite composite material with the small particle size is added into the water body of the natural environment which is polluted by algae according to the dosage of 0.1-80mg / L. When the method is used in a feedwater treatment process, the graphite composite material with the small particle size is fixed on the surface of a water treatment structure to remove algae, or the graphite composite material with the small particle size is added in front of the water inlet of a water treatment reaction tank or an agent combination device according to the dosage of 0.1-80mg / L. The method is applied to the field of water treatment.

Description

technical field [0001] The invention relates to a method for removing algae. Background technique [0002] With the aggravation of eutrophication in rivers, lakes, reservoirs or ponds in the natural environment, sudden algal pollution incidents occur from time to time, seriously affecting the water environment, and endangering drinking water treatment structures, resulting in deterioration of drinking water quality. When the algae in the water body explodes, copper sulfate is commonly used as an algicide to remove the algae in the existing method, but the remaining copper ions dissolved in the water have serious harm to the water body environment. In the conventional water treatment process, the existing methods are difficult to effectively remove algae, which deteriorates the quality of drinking water, such as producing odor, increasing turbidity and disinfection by-products. [0003] Although the existing ozone pre-oxidation enhanced coagulation treatment method can effec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28
Inventor 马军谢鹏超刘伟李旭春
Owner HARBIN INST OF TECH