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Phosphorus-free composite water treatment agent and application thereof

A water treatment and medicament technology, applied in the field of water treatment, can solve the problems of general corrosion inhibitor treatment effect, achieve excellent corrosion inhibition function, improve water quality, and reduce corrosion effect

Active Publication Date: 2020-10-13
ENERGY RESOURCES INST HEBEI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, during the operation of the circulating cooling water system, the water quality of the circulating water is mainly controlled by adding scale inhibitors and corrosion inhibitors respectively. Improvements in order to increase its scope of application

Method used

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  • Phosphorus-free composite water treatment agent and application thereof
  • Phosphorus-free composite water treatment agent and application thereof
  • Phosphorus-free composite water treatment agent and application thereof

Examples

Experimental program
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preparation example Construction

[0047] The preparation method of the rare earth modified diatomite comprises the following steps:

[0048] (1) Heat the diatomaceous earth to 400°C under vacuum, then heat-preserve it for 1-1.5 hours, then take it out, and cool it down naturally;

[0049] The vacuum degree is 0.02MPa;

[0050] The particle size of the diatomite is 30 μm;

[0051] (2) Evenly disperse the heat-treated diatomite into the acidic solution, stir at a speed of 500r / min for 30min, then adjust the pH of the solution to 9.5, continue stirring for 1 hour, and then let it stand for 1 hour to obtain diatom Soil dispersion;

[0052] Described acidic solution is citric acid solution;

[0053] Described citric acid solution mass fraction is 5%;

[0054] The mixing mass ratio of diatomaceous earth and citric acid solution is 300g:800mL;

[0055] The pH of the adjustment solution is adjusted by sodium hydroxide solution;

[0056] (3) Add calcium chloride of 1.5% by mass to the diatomite dispersion obtaine...

Embodiment 1

[0074] A phosphorus-free composite water treatment agent, which is obtained by uniformly stirring and reacting tetradecyl monoester sulfosuccinate, acrylic acid copolymer, sodium tartrate, rare earth modified diatomite, and water in a water bath for heat preservation; the stirring The reaction is subjected to ultrasonic treatment; the preparation method of the rare earth modified diatomite includes the following steps: (1) heating the diatomite to 400° C. under vacuum, and then performing heat preservation treatment for 1 hour, then taking it out, and cooling naturally; The vacuum degree is 0.02MPa; the diatomite particle size is 30 μm; (2) uniformly disperse the heat-treated diatomite into the acidic solution, stir at a speed of 500r / min for 30min, and then adjust the pH of the solution to 9.5, Continue to stir for 1 hour, and then stand still for 1 hour to obtain a diatomite dispersion; the acidic solution is a citric acid solution; the mass fraction of the citric acid soluti...

Embodiment 2

[0076] A phosphorus-free composite water treatment agent, which is obtained by uniformly stirring and reacting tetradecyl monoester sulfosuccinate, acrylic acid copolymer, sodium tartrate, rare earth modified diatomite, and water in a water bath for heat preservation; the rare earth The preparation method of the modified diatomite comprises the following steps: (1) heating the diatomite to 400° C. under vacuum, and then performing heat preservation treatment for 1.5 hours, then taking it out, and cooling naturally; the vacuum degree is 0.02 MPa; The diatomite particle size is 30 μm; (2) uniformly disperse the heat-treated diatomite into the acidic solution, stir at a speed of 500r / min for 30min, then adjust the pH of the solution to 9.5, continue stirring for 1 hour, and then Stand still for 1 hour to obtain a diatomite dispersion; the acidic solution is a citric acid solution; the mass fraction of the citric acid solution is 5%; the mixing mass ratio of the diatomite to the ci...

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Abstract

The invention discloses a phosphorus-free composite water treatment agent and application thereof, and relates to the technical field of water treatment. The phosphorus-free composite water treatmentagent is obtained by uniformly stirring and reacting tetradecyl sulfosuccinate sulfonate, an acrylic copolymer, sodium tartrate, rare earth modified diatomite and water under the condition of water bath heat preservation. The stirring reaction is subjected to ultrasonic treatment. According to the phosphorus-free composite water treatment agent and the application thereof provided by the invention, water treated by the water treatment agent prepared by the method does not contain phosphorus, so that the threat of eutrophication of a water body is greatly reduced, the water quality is greatly improved, and the water can be better recycled.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a phosphorus-free composite water treatment agent and its application. Background technique [0002] With the increasingly serious environmental problems, people's awareness of environmental protection is getting stronger and stronger. Traditional water treatment agents generally contain phosphorus, which can promote the treatment effect of water. However, the water treated with phosphorus-containing water treatment agents contains higher concentrations Phosphorus, leading to water eutrophication. [0003] According to the requirements of energy saving and emission reduction, more and more circulating water fields save fresh water by increasing the concentration of circulating water and using a large amount of recycled water as circulating water replenishment, which also brings some problems. As the concentration ratio increases, the turbidity of circulating water also i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12
CPCC02F5/125C02F2303/08Y02W10/10
Inventor 郭茹辉李海花张利辉高玉华孙丽景赵军平
Owner ENERGY RESOURCES INST HEBEI ACADEMY OF SCI
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