Mineral material-loaded rare earth complex cyanobacteria scavenger and preparation method thereof

A technology of mineral materials and complexes, applied in the field of water pollution control, can solve problems such as poor effects, and achieve the effects of simple process, good adsorption performance, and strong adaptability

Inactive Publication Date: 2011-12-28
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this formula to do a comparative experiment on removing cyanobacteria, the results show that the effect of this water purifier on removing cyanobacteria in water is relatively poor

Method used

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  • Mineral material-loaded rare earth complex cyanobacteria scavenger and preparation method thereof
  • Mineral material-loaded rare earth complex cyanobacteria scavenger and preparation method thereof
  • Mineral material-loaded rare earth complex cyanobacteria scavenger and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A cyanobacteria scavenging agent loaded with rare earth complexes on mineral materials is prepared from mineral materials and rare earth complexes, and the amount of rare earth complexes added is 1% of the mass of the mineral materials; the mineral materials are diatomite, silicon The mass purity of algae earth is 90%, and the particle size is less than 200 meshes; the rare earth complex is formed by mixing cerium nitrate aqueous solution and complexing agent, and the molar ratio of complexing agent and cerium nitrate in cerium nitrate aqueous solution is 1:1 The mass percentage of cerium nitrate in the cerium nitrate aqueous solution is 1%; the complexing agent is tartaric acid.

[0028] The preparation method of the cyanobacteria scavenger of above-mentioned mineral material load rare earth complex, it comprises the steps:

[0029] 1), crushing and purifying the mineral material raw ore (removing most of the impurities such as quartz), so that the mass purity of the m...

Embodiment 2

[0040]The cyanobacteria scavenging agent of mineral material load rare earth complex, it is prepared by mineral material and rare earth complex, the addition amount of rare earth complex is 1.5% of the quality of mineral material; Said mineral material is kaolin, the quality of kaolin The purity is 91%, and the particle size is less than 200 meshes; the rare earth complex is formed by mixing an aqueous cerium nitrate solution and a complexing agent, and the molar ratio of the complexing agent to cerium nitrate in the aqueous cerium nitrate solution is 1:1.5; The mass percentage of cerium nitrate is 3%, and the complexing agent is tartaric acid.

[0041] The preparation method of the cyanobacteria scavenger of above-mentioned mineral material load rare earth complex, it comprises the steps:

[0042] 1), crushing and purifying the mineral material raw ore (removing most of the impurities such as quartz and feldspar), so that the mass purity of the mineral material is 91%, and th...

Embodiment 3

[0053] A cyanobacteria scavenging agent loaded with rare earth complexes on mineral materials, which is prepared from mineral materials and rare earth complexes, and the addition of rare earth complexes is 2% of the mass of mineral materials; the mineral materials are illite, illite The mass purity is 95%, and the particle size is less than 200 meshes; the rare earth complex is formed by mixing cerium nitrate aqueous solution and complexing agent, and the molar ratio of complexing agent to cerium nitrate in cerium nitrate aqueous solution is 1:2, and cerium nitrate The mass percentage of cerium nitrate in the aqueous solution is 5%; the complexing agent is tartaric acid.

[0054] The preparation method of the cyanobacteria scavenger of above-mentioned mineral material load rare earth complex, it comprises the steps:

[0055] 1), crushing and purifying the mineral material raw ore (removing most of the impurities such as quartz), so that the mass purity of the mineral material ...

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Abstract

The invention belongs to the technical field of water pollution control, and in particular relates to a water body algae scavenger and a preparation method thereof. A cyanobacteria scavenger loaded with rare earth complexes on mineral materials is characterized in that it is prepared from mineral materials and rare earth complexes, and the amount of rare earth complexes added is 1% to 4% of the mass of mineral materials; the mineral material It is any one or a mixture of any two or more of kaolin, illite, montmorillonite, attapulgite, diatomite, and sericite, and any two or more of them are mixed in any proportion; the rare earth complex It is prepared by mixing cerium nitrate aqueous solution and complexing agent, the molar ratio of complexing agent to cerium nitrate in the cerium nitrate aqueous solution is 1:1-3, and the mass percentage of cerium nitrate in the cerium nitrate aqueous solution is 1-10%. The complexing agent is any one or a mixture of tartaric acid and citric acid, and the two are mixed in any proportion. The cyanobacteria scavenger prepared by the method has the characteristics of good effect of removing cyanobacteria and low cost.

Description

technical field [0001] The invention belongs to the technical field of water pollution control, and in particular relates to a water body algae scavenger and a preparation method thereof. Background technique [0002] With the development of industrialization, the eutrophication of the water body is becoming more and more serious. The algae (mainly cyanobacteria) in the water body multiply excessively, and after corruption, a layer of blue-green and fishy-smelling floating foam is formed on the water surface. called red tide. In recent years, large-scale and frequent outbreaks of cyanobacterial blooms have occurred worldwide. The United States, China, Japan, Australia, Brazil and other countries have reported incidents of fish, livestock and human poisoning deaths caused by blooms. Algal blooms and coastal red tides in domestic rivers and lakes also occur frequently. In particular, in 2007, a large area of ​​cyanobacteria broke out in Taihu Lake in Wuxi, which directly affe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/42C02F1/28
Inventor 王洪权严春杰郝佳瑞梅娟赵俊余洪杰
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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