Preparation method and application method of silicon dioxide cluster-based novel settling agent
A technology of silicon dioxide and sedimentation agent, applied in the directions of silicon dioxide, silicon oxide, chemical instruments and methods, etc., can solve the problems of beneficial water biological hazards, high residual metal ion content, destroying ecological balance, etc., and inhibit the growth of cyanobacteria. , Reduce the residual amount, the effect of adjustable density
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[0034] Example 1
[0035] A method for preparing a new type of sedimentation agent based on silica clusters. The silica clusters are used as the main body of the sedimentation agent. The strong interaction between the silica clusters and metal ions is used to combine the metal salt aqueous solution with The aqueous solution of the silica clusters is fully mixed to obtain a uniform solution of the metal salt modified settling agent, that is, a new type of settling agent is obtained;
[0036] The silica clusters adopt an aqueous solution of silica particles;
[0037] The density or size of the silica clusters can be adjusted, and the degree of polymerization can be adjusted by the method of standing and aging at a certain temperature, thereby adjusting the density or size.
[0038] Specific steps are as follows:
[0039] (1) Preparation of silica particle aqueous solution:
[0040] Add 50g of elemental silicon powder into 100mL of water, heat to 98°C, stir for 30min, and dissolve 0.4g of sod
Example Embodiment
[0045] Example 2
[0046] A method for preparing a new type of sedimentation agent based on silica clusters. The silica clusters are used as the main body of the sedimentation agent. The strong interaction between the silica clusters and metal ions is used to combine the metal salt aqueous solution with The aqueous solution of the silica clusters is fully mixed to obtain a uniform solution of the metal salt modified settling agent, that is, a new type of settling agent is obtained;
[0047] The silica clusters adopt an aqueous solution of silica particles;
[0048] The density of the silica clusters is adjustable, and the degree of polymerization can be adjusted by the method of standing and aging at a certain temperature, thereby adjusting the density.
[0049] Specific steps are as follows:
[0050] (1) Preparation of silica particle aqueous solution:
[0051] Add 50g of elemental silicon powder into 100mL of water, heat to 98°C, stir for 30min, and dissolve 0.4g of sodium hydroxide in 2
Example Embodiment
[0056] Example 3
[0057] A method for preparing a new type of sedimentation agent based on silica clusters. The silica clusters are used as the main body of the sedimentation agent. The strong interaction between the silica clusters and metal ions is used to combine the metal salt aqueous solution with The aqueous solution of the silica clusters is fully mixed to obtain a uniform solution of the metal salt modified settling agent, that is, a new type of settling agent is obtained;
[0058] The silica clusters adopt an aqueous solution of silica particles;
[0059] The density of the silica clusters is adjustable, and the degree of polymerization can be adjusted by the method of standing and aging at a certain temperature, thereby adjusting the density.
[0060] Specific steps are as follows:
[0061] (1) Preparation of silica particle aqueous solution:
[0062] Add 50g of elemental silicon powder into 100mL of water, heat to 98°C, stir for 30min, and dissolve 0.4g of sodium hydroxide in 2
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