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A kind of polysilicon ferric sulfate-based inorganic-organic composite flocculant and preparation method thereof

A technology of polysilicon ferric sulfate and composite flocculant, which is applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of little research information and achieve simple operation , stable quality, easy to promote the effect

Active Publication Date: 2018-12-18
ZHONGKAI UNIV OF AGRI & ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, there have been a lot of reports on the introduction of aluminum salt and iron salt inorganic flocculant into organic cationic polymer flocculant, but there is little research information on the introduction of polysilicon ferric sulfate into dimethyldiallyl homopolymer

Method used

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  • A kind of polysilicon ferric sulfate-based inorganic-organic composite flocculant and preparation method thereof
  • A kind of polysilicon ferric sulfate-based inorganic-organic composite flocculant and preparation method thereof
  • A kind of polysilicon ferric sulfate-based inorganic-organic composite flocculant and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0030] An embodiment of the polysilicoferric sulfate-based inorganic-organic composite flocculant of the present invention, the flocculant described in this embodiment is prepared by the following method:

[0031] (1) Sodium silicate and ferrous sulfate heptahydrate are mixed and then added to the reaction vessel, an appropriate amount of water is added to dissolve, and the pH value is adjusted to be 1 to 3; wherein the mol ratio of sodium silicate and ferrous sulfate heptahydrate is 0.2;

[0032] (2) Add oxidant hydrogen peroxide under stirring and continue to slowly oxidize until ferrous sulfate heptahydrate is oxidized; wherein the mol ratio of ferrous sulfate heptahydrate to hydrogen peroxide is 1;

[0033] (3) Add stabilizer disodium hydrogen phosphate, activate at 40°C for 1 hour to obtain polysilicon ferric sulfate solution; wherein the molar ratio of stabilizer to ferrous sulfate is 0.02;

[0034] (4) Mix polysilicon ferric sulfate solution obtained in step (3) with po...

Embodiment 2

[0037]An embodiment of the polysilicoferric sulfate-based inorganic-organic composite flocculant of the present invention, the flocculant described in this embodiment is prepared by the following method:

[0038] (1) Add the reaction vessel after mixing aluminum silicate and ferrous sulfate heptahydrate, add an appropriate amount of water to dissolve, and adjust the pH value to 1~3; wherein the mol ratio of aluminum silicate and ferrous sulfate heptahydrate is 0.7;

[0039] (2) add oxygenant potassium ferrate under stirring and continue to slowly oxidize until ferrous sulfate heptahydrate is oxidized; wherein the mol ratio of ferrous sulfate heptahydrate to potassium ferrate is 1.1;

[0040] (3) Add stabilizer sodium dihydrogen phosphate, activate at 40°C for 2 hours to obtain polysilicon ferric sulfate solution; wherein the molar ratio of stabilizer to ferrous sulfate is 0.03;

[0041] (4) Mix polysilicon ferric sulfate solution obtained in step (3) with polydimethyldiallyl a...

Embodiment 3

[0044] An embodiment of the polysilicoferric sulfate-based inorganic-organic composite flocculant of the present invention, the flocculant described in this embodiment is prepared by the following method:

[0045] (1) Calcium silicate and ferrous sulfate heptahydrate are mixed and then added to the reaction vessel, an appropriate amount of water is added to dissolve, and the pH value is adjusted to be 1 to 3; wherein the mol ratio of calcium silicate and ferrous sulfate heptahydrate is 0.6;

[0046] (2) Add oxidant sodium peroxide under stirring and continue to slowly oxidize until ferrous sulfate heptahydrate is oxidized; wherein the mol ratio of ferrous sulfate heptahydrate to sodium peroxide is 1.2;

[0047] (3) adding stabilizer sodium dihydrogen phosphate, and activating at 40° C. for 3 hours to obtain polysilicon ferric sulfate solution; wherein the molar ratio of stabilizer to ferrous sulfate is 0.04;

[0048] (4) Mix polysilicon ferric sulfate solution obtained in step...

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Abstract

The invention discloses a polysilicon ferric sulfate based inorganic-organic compound flocculant. The flocculant is formed through compounding of polysilicon ferric sulfate and a dimethyl diallyl homopolymer. The inorganic-organic compound flocculant is obtained through compounding of polysilicon ferric sulfate and the dimethyl diallyl homopolymer. The polysilicon ferric sulfate based inorganic-organic compound flocculant has stable quality, is used for the water treatment industry and can effectively improve the flocculating settling performance. The invention further discloses a preparation method of the polysilicon ferric sulfate based inorganic-organic compound flocculant. The method is simple to operate and easy to popularize.

Description

technical field [0001] The invention relates to a composite flocculant and a preparation method thereof, in particular to a polysilicon ferric sulfate-based inorganic-organic composite flocculant and a preparation method thereof. Background technique [0002] Coagulation sedimentation method is an economical and simple water treatment method commonly used to improve water quality treatment efficiency in the field of water treatment industry, water pollution control, seawater desalination and water-saving reuse purification engineering technology at home and abroad. The innovation and development of water treatment technology, the simplification of process flow, the reduction of operating costs and the improvement of water purification quality largely depend on the performance of flocculants. Therefore, new and high-efficiency water treatment chemicals and materials have always been the pillar industries for key development in the field of water treatment and environmental pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/52C02F1/5236C02F1/56
Inventor 舒绪刚石宗武樊明志吴春丽周新华
Owner ZHONGKAI UNIV OF AGRI & ENG