Modified flocculant and application thereof

A flocculant and modification technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, water treatment parameter control, water pollutants, etc., can solve the problems of fluoride ion concentration reduction, etc., to improve production efficiency, improve effect, improve removal The effect of the fluorine effect

Pending Publication Date: 2021-11-19
河南亿群环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a modified flocculant and its application to solve the problem that the polyacrylamide flocculant in the prior art is difficult to reduce the fluoride ion concentration to below 30mg / L

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 2

[0033] A modified flocculant, comprising the following parts by weight of the starting material: 1 part of polyacrylamide gel, 1g / L of Fe 3+ 100 parts of solution; modified flocculant prepared as follows:

[0034] (1) take the above parts of the polyacrylamide gel and 1g / L of Fe 3+ Solution was placed in a reaction vessel;

[0035] (2) polyacrylamide gel and the Fe 3+ PH of the mixed solution was adjusted to a value of 1.73;

[0036] (3) adjusting the polyacrylamide gel and Fe 3+ Temperature of the mixed solution to 35 ℃;

[0037] (4) polyacrylamide gel and stirred for Fe 3+ Mixed solution for 2 hours, stirring speed during the reaction was 150 rev / min;

[0038] After (5) the reaction, it was dried, granulated, pulverized and bagging.

[0039] In this embodiment, using the PH value of 1.73, temperature 35 ℃, stirring speed 150 revolutions / minute, the reaction conditions for reaction for 2 hours, Fe 3+ The reaction of more than 55%.

[0040] A modified flocculant applicatio...

Embodiment 3

[0043] A modified flocculant, comprising the following parts by weight of the starting material: 1 part of polyacrylamide gel, 1g / L of Fe 3+ 100 parts of solution; modified flocculant prepared as follows:

[0044] (1) take the above parts of the polyacrylamide gel and 1g / L of Fe 3+ Solution was placed in a reaction vessel;

[0045] (2) polyacrylamide gel and the Fe 3+ PH of the mixed solution was adjusted to a value of 1.75;

[0046] (3) adjusting the polyacrylamide gel and Fe 3+ Mixing the solution to a temperature of 30 deg.] C;

[0047] (4) polyacrylamide gel and stirred for Fe 3+ Mixed solution for 2 hours, stirring speed during the reaction was 180 rev / min;

[0048] After (5) the reaction, it was dried, granulated, pulverized and bagging.

[0049] In this embodiment, using the PH value of 1.75, temperature 30 ℃, stirring speed of 180 rev / min, the reaction for 2 hours of reaction, under the present experimental conditions, Fe 3+ Reaction more than 60%.

[0050] A modif...

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PUM

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Abstract

The invention provides a modified flocculant and an application thereof, and belongs to the technical field of flocculants. The modified flocculant comprises the following raw materials in parts by weight: 1-3 parts of polyacrylamide gel and 100-200 parts of 1 g/L Fe<3+> solution. The preparation method of the modified flocculant comprises the following steps; According to the principle that Fe<3+> and F<-> in the wastewater can generate a complex, the wastewater fluorine removal effect is improved, the fluorine ion concentration in the wastewater can be reduced to 5 mg/L, and the effect is obviously improved compared with an existing fluorine ion concentration of 20-30 mg/L after fluorine removal; and meanwhile, through repeated experiments, production conditions such as better pH, reaction temperature, reaction time, stirring speed and the like are determined, and the production efficiency is favorably improved.

Description

Technical field [0001] Technical Field The present invention relates to flocculants, flocculant and in particular, relates to a modified application. Background technique [0002] Flocculants theory: "coalescence" theory, flocculants is difficult to separate some of the particles or particles with a positive (negative) with the negatively charged groups, and water (positive) electrically close to each other, reducing potential thereof, it is in an unstable state, and the use of its polymeric nature such that the particle concentration, and separated by a physical or chemical method, the main application in the field of sewage treatment. [0003] Most industrial production contains fluoride ions, resulting in industrial wastewater produced which also contains a fluorine element, a fluoride some electronic components manufacturing industry wastewater discharged contains far exceeded, the last of these excessive fluoride waste water into natural water , causing serious water polluti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/52C02F1/58C02F101/14
CPCC02F1/56C02F1/5245C02F1/583C02F2101/14C02F2209/06
Inventor 彭益云杜翠翠李慧晓毕学敏李峰刘世沛
Owner 河南亿群环保科技有限公司
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