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A kind of phosphorus-free composite water treatment agent and its application

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

Active Publication Date: 2022-06-07
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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  • A kind of phosphorus-free composite water treatment agent and its application
  • A kind of phosphorus-free composite water treatment agent and its application
  • A kind of phosphorus-free composite water treatment agent and its application

Examples

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preparation example Construction

[0040] The preparation method of the rare earth modified diatomite comprises the following steps:

[0041] (1) The diatomite is heated to 400°C under vacuum, and then heat-retained for 1-1.5 hours, then taken out and cooled naturally;

[0042] The vacuum degree is 0.02MPa;

[0043] The particle size of the diatomite is 30 μm;

[0044] (2) uniformly dispersing the heat-treated diatomite into the acidic solution, stirring at 500 r / min for 30 min, then adjusting the pH of the solution to 9.5, continuing to stir for 1 hour, and then standing for 1 hour to obtain diatoms soil dispersion;

[0045] The acidic solution is a citric acid solution;

[0046] The mass fraction of the citric acid solution is 5%;

[0047] The mixing mass ratio of the diatomite and the citric acid solution is 300g: 800mL;

[0048] The pH of the regulated solution is regulated by sodium hydroxide solution;

[0049] (3) adding 1.5% of calcium chloride by mass to the diatomite dispersion obtained above, he...

Embodiment 1

[0060] A phosphorus-free composite water treatment agent 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 under heat preservation; the stirring The reaction is ultrasonically treated; the preparation method of the rare earth modified diatomite comprises the following steps:

[0061](1) The diatomite was heated to 400°C under vacuum, and then subjected to heat preservation treatment for 1 hour, then taken out and cooled naturally; the vacuum degree was 0.02MPa; the particle size of the diatomite was 30 μm; (2) Disperse the heat-treated diatomite evenly into the acidic solution, stir at 500r / min for 30min, then adjust the pH of the solution to 9.5, continue stirring for 1 hour, and then stand for 1 hour to obtain a diatomite dispersion The acid solution is a citric acid solution; the mass fraction of the citric acid solution is 5%; the mixing mass ...

Embodiment 2

[0063] A phosphorus-free composite water treatment agent is obtained by uniformly stirring and reacting tetradecyl sulfosuccinate monoester sulfonate, acrylic acid copolymer, sodium tartrate, rare earth modified diatomite, and water in a water bath under heat preservation; the rare earth The preparation method of the modified diatomite includes the following steps: (1) heating the diatomite to 400° C. under vacuum, then performing heat preservation treatment for 1.5 hours, then taking it out and cooling it naturally; the vacuum degree is 0.02MPa; The particle size of the diatomite is 30 μm; (2) the diatomite after the heat treatment is uniformly dispersed into the acidic solution, stirred at a speed of 500r / min for 30min, then the pH of the solution is adjusted to 9.5, and the stirring is continued for 1 hour, and then the Let stand 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%; th...

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Abstract

The invention discloses a phosphorus-free composite water treatment agent and its application; it relates to the technical field of water treatment and consists of fourteen monoester sulfosuccinate sulfonate, acrylic acid copolymer, sodium tartrate, rare earth modified diatomite, water Under the water bath heat preservation, the uniform stirring reaction is obtained; the stirring reaction is subjected to ultrasonic treatment; the invention provides a phosphorus-free composite water treatment agent and its application, and the water treated by the water treatment agent prepared by the method of the invention does not contain phosphorus Elements, greatly reducing the threat of eutrophication of water bodies, greatly improving water quality, and can be better reused.

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 application thereof. Background technique [0002] With the increasingly serious environmental problems, people's awareness of environmental protection has become more and more strengthened. Traditional water treatment agents generally contain phosphorus elements, which can promote the treatment effect of water. However, the water quality treated with phosphorus-containing water treatment agents contains high concentrations of of phosphorus, leading to water eutrophication. [0003] According to the requirements of energy conservation and emission reduction, more and more circulating water farms save fresh water by increasing the concentration ratio of circulating water and using a large amount of reclaimed water as circulating water replenishment, which also brings some problems. When the concentration ratio increase...

Claims

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Application Information

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Patent Type & Authority Patents(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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