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Algaecide, preparation method thereof and algae removing method

An algaecide and flocculant technology, applied in the field of algaecide and its preparation, can solve problems such as low algae removal efficiency, achieve the effects of avoiding poor and unstable precipitation and improving efficiency

Inactive Publication Date: 2016-12-07
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The modified clay phosphorus control technology developed by the team of Professor Lürling of Wageningen University in the Netherlands has been successfully applied to the control of endogenous pollution in shallow lake sediments, but the technology has low algae removal efficiency

Method used

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  • Algaecide, preparation method thereof and algae removing method

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preparation example Construction

[0030] The preparation method of the algicide of the present invention is prepared by dispersing red clay and flocculant with a mass ratio of 1.2-10:1 in a solvent. The mass ratio of the two can be 1.2:1, 1.22:1, 1.25:1, 1.3:1, 1.5:1, 2:1, 3:1, 5:1, 7:1, 8:1, 9:1 , 9.5:1, 9.6:1, 9.7:1, 9.8:1, 9.9:1 or 10:1 etc., preferably 5:1.

[0031] It can be understood that the above-mentioned solvent plays a role of dispersion. The solvent may be water, and of course other known forms in the art. What is obtained by dispersing laterite in a solvent may be a suspension. As for the proportion of the solvent, it can be adjusted according to the actual situation, and will not be described in detail here.

[0032] It also includes drying the red clay before dispersing. An oven can be used for drying, and the drying temperature can be 100-110°C for reference, such as 100°C, 101°C, 102°C, 105°C, 108°C, 109°C, 109.5°C or 110°C, etc., preferably 105°C Wait.

[0033] Sieving is also included...

Embodiment 1

[0038] The collected laterite samples were oven-dried at 105°C, passed through a 300-mesh sieve after Raymond milling and winnowing. According to the needs of the experiment, at room temperature, weigh laterite and FeCl with a mass ratio of 1.25:1 3 Dissolve in an appropriate amount of distilled water, and stir slowly with a magnetic stirrer for 30s30s to obtain a suspension that is the modified laterite suspension.

[0039] When implementing the algae removal method, the prepared algae removal is added to the water body where algae bloom occurs at a dosage of 20 mg / L, and mechanically stirred.

Embodiment 2

[0041] The collected laterite samples were oven-dried at 100°C, passed through a 300-mesh sieve after Raymond milling and winnowing. According to the needs of the experiment, at room temperature, weigh laterite and FeCl with a mass ratio of 2.5:1 3 Dissolved in an appropriate amount of distilled water, and stirred slowly with a magnetic stirrer for 30s, the suspension obtained is the modified laterite suspension.

[0042] When implementing the algae removal method, the prepared algae removal is added to the water body where algae blooms occur at a dosage of 30 mg / L, and mechanically stirred.

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Abstract

The invention discloses an algaecide, a preparation method thereof and an algae removing method. The algaecide is prepared from the following raw materials of red earth and a flocculating agent which are (1.2 to 10) to 1 in mass ratio. In the algaecide disclosed by the invention, the flocculating agent has a modification function on the red earth, so that the problem of worse and instable sedimentation caused by single use of the flocculating agent is avoided, and the algae removing efficiency is increased.

Description

technical field [0001] The invention relates to the technical field of water spray control, in particular to an algaecide, a preparation method thereof, and an algae removal method. Background technique [0002] In recent years, the degree of eutrophication in my country's water bodies has been increasing, and the intensity and frequency of cyanobacterial blooms have increased year by year. In order to alleviate the harm caused by cyanobacteria blooms, governments of various countries have invested a lot of manpower and material resources in the development of cyanobacteria bloom prevention and control technologies. In recent years, the method of flocculation and algae removal using natural non-toxic clay minerals as raw materials is receiving increasing attention. [0003] The modified clay phosphorus control technology developed by the team of Professor Lürling of Wageningen University in the Netherlands has been successfully applied to the control of endogenous pollution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5245C02F1/5263C02F1/56Y02W10/33
Inventor 彭亮韩博平林秋奇雷腊梅
Owner JINAN UNIVERSITY
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