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Rapidly coagulating de-cyanophycean modified soil and preparation method thereof

A technology of soil and cyanobacteria, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of slow response to nutrients, prolonging the treatment period, and conversion of toxin-producing species in the water ecosystem, achieving uniform distribution, improving transparency, and removing cyanobacteria Efficient effect

Inactive Publication Date: 2019-02-12
江西省水利科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Substantial reduction of nutrient salts is the fundamental way to control cyanobacterial blooms, but the aquatic ecosystem responds slowly to the reduction of nutrient salts, and the extension of the treatment period may even lead to the conversion of toxin-producing species. inside is hard to work

Method used

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  • Rapidly coagulating de-cyanophycean modified soil and preparation method thereof
  • Rapidly coagulating de-cyanophycean modified soil and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] Step 1, weigh the polydichloroethyl ether tetramethylethylenediamine (PQGA-126) of 2g, add water and stir and dilute to 40g / L, obtain polydichloroethyl ether tetramethylethylenediamine (PQGA-126 ) mother liquor;

[0029] Step 2, weighing 2g of polyaluminum chloride and diluting it with water to 40g / L to obtain the polyaluminum chloride mother liquor;

[0030] Step 3, weighing 20g of powdery soil (passed through a sieve of 180 mesh or more), put it into water with a pH value of 2.5, dissolve and dilute to 50g / L, and obtain the powdery soil mother liquor;

[0031] Step 4, the polydichloroethyl ether tetramethylethylenediamine mother liquor obtained in step 1 and the polyaluminum chloride mother liquor obtained in step 2 are added to the powdery soil mother liquor obtained in step 3, wherein polydichloroethyl ether The volume ratio of the tetramethylethylenediamine mother liquor, the polyaluminum chloride mother liquor and the powdery soil mother liquor is 1:1:5, and the ...

Embodiment 2

[0047] Step 1, weigh the polydichloroethyl ether tetramethylethylenediamine (PQGA-126) of 2g, add water and stir and dilute to 40g / L, obtain polydichloroethyl ether tetramethylethylenediamine (PQGA-126 ) mother liquor;

[0048] Step 2, weighing 2g of polyaluminum chloride and diluting it with water to 40g / L to obtain the polyaluminum chloride mother liquor;

[0049] Step 3, weighing 120g of powdery soil (passing through a sieve of 180 mesh or more), putting it into water with a pH value of 2.5, dissolving and diluting to 60g / L, and obtaining the powdery soil mother liquor;

[0050] Step 4, the polydichloroethyl ether tetramethylethylenediamine mother liquor obtained in step 1 and the polyaluminum chloride mother liquor obtained in step 2 are added to the powdery soil mother liquor obtained in step 3, wherein polydichloroethyl ether The volume ratio of tetramethylethylenediamine mother liquor, polyaluminum chloride mother liquor and powdery soil mother liquor is 1:1.5:20, and ...

Embodiment 3

[0052] Step 1, weigh the polydichloroethyl ether tetramethylethylenediamine (PQGA-126) of 1g, add water and stir and dilute to 20g / L, obtain polydichloroethyl ether tetramethylethylenediamine (PQGA-126 ) mother liquor;

[0053] Step 2, weighing 1g of polyaluminum chloride and diluting it with water to 20g / L to obtain a polyaluminum chloride mother liquor;

[0054] Step 3, weighing 60g of powdery soil (passing through a sieve of 180 mesh or more), putting it into water with a pH value of 2.5, dissolving and diluting to 40g / L, and obtaining the powdery soil mother liquor;

[0055] Step 4, the polydichloroethyl ether tetramethylethylenediamine mother liquor obtained in step 1 and the polyaluminum chloride mother liquor obtained in step 2 are added to the powdery soil mother liquor obtained in step 3, wherein polydichloroethyl ether The volume ratio of the tetramethylethylenediamine mother liquor, the polyaluminum chloride mother liquor and the powdery soil mother liquor is 1:1.2...

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Abstract

The invention discloses rapidly coagulating de-cyanophycean modified soil, comprising the following raw materials in parts by weight: 200 to 1200 parts of powdery soil, 20 to 40 parts of polydichloroethyl ether tetramethylethylenediamine, and 20 to 60 parts of polyaluminum chloride, wherein the powdery soil has a particle size of at least 180 meshes. The rapidly coagulating de-cyanophycean modified soil has stable performance, fast response speed of algae removal water, certain anti-interference ability to impurities in sewage, and simple operation when used, is very suitable for large-scale preparation, and provides a solid technical support for large-scale field application of de-cyanophycean materials.

Description

technical field [0001] The invention relates to the field of modified materials for cyanobacteria. More specifically, the present invention relates to a rapid coagulation-removed cyanobacteria-removed modified soil and a preparation method thereof. Background technique [0002] In the past ten years, the occurrence of cyanobacterial blooms in freshwater bodies in China has shown the characteristics of large-scale, high-frequency, and high biomass, causing an imbalance in the structure and function of the aquatic ecosystem. This imbalance will directly or indirectly affect human health. It has become a major water environment problem that our country needs to face at present and for a long time in the future. Worldwide, the occurrence rate of cyanobacterial blooms is on the rise, and its distribution is expanding; in some areas, the annual outbreak and persistence of cyanobacterial blooms have become the norm. The degree of eutrophication (such as nitrogen and phosphorus co...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56
Inventor 戴国飞杨平方媛瑗胡建民许新发
Owner 江西省水利科学研究院
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