A kind of inorganic-organic hybrid flocculation material and preparation method thereof
A technology of organic hybridization and inorganic flocculants, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc., can solve environmental pollution, high content of inorganic components, and large power consumption To achieve the effect of reducing cationic monomer components, improving charge neutralization, and reducing wastewater treatment costs
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Embodiment 1
[0046] A preparation method of an inorganic-organic hybrid flocculant, comprising the steps of:
[0047] (1) to aluminum hydroxide (Al(OH) 3 ) into the colloid, add acrylamide (AM) and dimethyl diallyl ammonium chloride (DMDAAC) monomers until they are completely dissolved, and place them in a constant temperature water bath device at a temperature of 40°C. After passing through high-purity nitrogen for 30 minutes, slowly Ammonium persulfate ((NH 4 ) 2 S 2 o 8 ) and sodium bisulfite (NaHSO 3 ) of the mixed initiator solution, closed reaction system, finished after 12h of reaction; wherein Al(OH) 3 The quality of the organic monomer is 1:9, the mass ratio of DMDAAC to AM is 1:9, and the initiator quality is 0.1% of the organic monomer quality, (NH4) 2 S 2 o 8 with NaHSO 3 The mass ratio is 1.5:1;
[0048] (2) dissolving the gel obtained after the reaction is completed in water, and extracting the gel solution obtained by dissolving in acetone to obtain a precipitate; ...
Embodiment 2
[0052] A preparation method of an inorganic-organic hybrid flocculant, comprising the steps of:
[0053] (1) to iron hydroxide (Fe(OH) 3 ) into the colloid by adding acrylamide (AM) and dimethyl diallyl ammonium chloride (DMDAAC) monomers until completely dissolved, and placed in a constant temperature water bath device with a temperature of 50 ° C, and after passing through high-purity nitrogen for 30 minutes, slowly Potassium persulfate (K 2 S 2 o 8 )) and sodium bisulfite (NaHSO 3 ) of the mixed initiator solution, the closed reaction system, the end of the reaction after 6h; wherein Fe(OH) 3 The quality of the organic monomer is 1:6, the mass ratio of DMDAAC to AM is 1:8, the initiator quality is 0.02% of the organic monomer quality, K 2 S 2 o 8 with NaHSO 3 The mass ratio is 2:1;
[0054] (2) dissolving the gel obtained after the reaction in water, and extracting the dissolved gel in acetone to obtain a precipitate.
[0055] (3) Place the extracted precipitate i...
Embodiment 3
[0058] A preparation method of an inorganic-organic hybrid flocculant, comprising the steps of:
[0059] (1) Add acrylamide (AM) and dimethyl diallyl ammonium chloride (DMDAAC) monomers to the polyaluminum chloride (PAC) solution until they are completely dissolved, and place them in a constant temperature water bath device with a temperature of 50°C In the process, after passing high-purity nitrogen gas for 30 minutes, ammonium persulfate ((NH 4 ) 2 S 2 o 8 ) and sodium bisulfite (NaHSO 3 ) mixed initiator solution, a closed reaction system, and the reaction ends after 6h; wherein the mass ratio of PAC and organic monomer is 1:6, the mass ratio of DMDAAC and AM is 1:9, and the initiator mass is 5% of the mass of organic monomer %, (NH4) 2 S 2 o 8 with NaHSO 3 The mass ratio is 1.05:1
[0060] (2) dissolving the gel obtained after the reaction is completed in water, and extracting the gel solution obtained by dissolving in acetone to obtain a precipitate;
[0061] (3...
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