A kind of preparation method of quaternary compound algicide

The technology of algaecide and sulfomethylated polyacrylamide is applied in the field of preparation of quaternary compound algaecide, which can solve the problems of low efficiency of cyanobacteria treatment, and achieve excellent flocculation-aiding effect, strong adsorption effect, and excellent bridging effect. Ability and Effects of Extended Space

Active Publication Date: 2020-12-18
SHANGHAI SHANHENG ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the processing efficiency of blue-green algae is low in the present technology, the present invention provides a kind of preparation method of quaternary compound algicide on the one hand, comprises the following steps:

Method used

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Examples

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preparation example Construction

[0026] The present invention provides a kind of preparation method of quaternary compound algicide on the one hand, comprises the following steps:

[0027] Step 1, preparation of sulfomethylated polyacrylamide: dissolving polyacrylamide in water to form an aqueous solution, adding sodium hydroxide solution to the aqueous solution to adjust the pH value, and then adding a certain amount of formaldehyde, sodium sulfite and potassium sulfite, After raising the temperature and reacting for a period of time, cooling, washing and drying to obtain the desired sulfomethylated polyacrylamide;

[0028] Step 2, configuration of polyvinyl alcohol aqueous solution: weigh polyvinyl alcohol with an average molecular weight of 14000-17000, and configure polyvinyl alcohol aqueous solution;

[0029] Step 3: Weigh micron-level aluminum oxide, fumed nano-silica, porous cross-linked polystyrene microspheres, and the sulfomethylated polyacrylamide prepared in step 1, and mix them uniformly. Add in...

Embodiment 1

[0047] Preparation of sulfomethylated polyacrylamide:

[0048] Dissolve polyacrylamide in water and configure it into an aqueous solution. The mass fraction of the polyacrylamide aqueous solution is 15%. Add sodium hydroxide solution to the polyacrylamide aqueous solution to adjust the pH value to 9, and then add a certain amount of formaldehyde, sodium sulfite and sulfite. Potassium sulfate, raised the temperature to 55°C and reacted for 5 hours, cooled, washed and dried to obtain the desired sulfomethylated polyacrylamide. In parts by weight, the parts by weight of polyacrylamide, formaldehyde, sodium sulfite and potassium sulfite are 5:4:4:2 in sequence.

Embodiment 2

[0050] A preparation method of a quaternary compound algicide, comprising the following steps:

[0051] Step 1, configuration of polyvinyl alcohol aqueous solution: in parts by weight, weigh 1 part of polyvinyl alcohol and 5 parts of water, and mix them uniformly to prepare a polyvinyl alcohol aqueous solution;

[0052] Step 2, in parts by weight, weigh 1 part of micron-sized aluminum oxide, 3 parts of fumed nano-silica, 0.5 part of porous cross-linked polystyrene microspheres and the sulfomethylated polystyrene prepared in Example 1. 5 parts of acrylamide, mix evenly, add the uniformly mixed components into the polyvinyl alcohol aqueous solution configured in step 2, and stir to obtain a mixed solution; wherein micron-level aluminum oxide, fumed nano-silica, porous cross-linked The weight ratio of the total weight of the polystyrene microspheres and the sulfomethylated polyacrylamide prepared in Example 1 to the aqueous solution of polyvinyl alcohol was 1:5.

[0053] Step 3,...

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Abstract

The invention belongs to the technical field of cyanobacteria water treatment, and particularly relates to a preparation method of a quaternary composite algaecide. The quaternary composite algaecideis prepared by taking a super-macroporous molecular sieve as a matrix and simultaneously loading a specific amount of micron-sized aluminum oxide, gas-phase method nano silicon dioxide, porous crosslinked polystyrene microspheres and sulfomethylated polyacrylamide. The quaternary composite algaecide prepared by the invention realizes an excellent flocculation effect, is beneficial to thorough removal of blue algae, can be widely applied to the treatment process of algae-rich water, and has a good algae removal effect.

Description

technical field [0001] The invention relates to the technical field of cyanobacteria water treatment, in particular to a preparation method of a quaternary compound algicide. Background technique [0002] As a large amount of eutrophic elements such as nitrogen and phosphorus are discharged into the water body, the eutrophication of the water body is caused, and a large number of cyanobacteria blooms are generated, which has become one of the major problems facing the water resource environment. If the large-scale outbreak of cyanobacteria blooms is not timely and effective, it will cause rot and odor, which not only seriously affects people's living environment, but also the cyanobacteria themselves can release algal toxins, which will seriously endanger the safety of drinking water. [0003] For the control of cyanobacteria blooms, on the one hand, the prior art discloses a comprehensive treatment device for cyanobacteria, which is provided with a salvage ship and an autom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00C02F1/52C02F1/56C02F1/28
CPCC02F1/00C02F1/288C02F1/5236C02F1/56
Inventor 黄海弟王艳云赵金涛孙君
Owner SHANGHAI SHANHENG ECOLOGICAL TECH CO LTD
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