A kind of oyster shell powder modified water treatment agent and its preparation method and application
A technology of oyster shell powder and modified water, which is applied in the field of biomedicine, can solve the problems of high cost of calcination and surfactant, ineffective modification effect of oyster shell, inconspicuous water treatment ability, etc., and achieve fast and efficient adsorption effect, Excellent stability and durability, excellent effect of repeated use performance
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Embodiment 1
[0047] The preparation of embodiment 1 oyster shell powder modified water treatment agent
[0048] A preparation method of oyster shell powder modified water treatment agent, comprising the following steps:
[0049] S1. Mix oyster shell powder, polyacrylamide and solvent water evenly to obtain a suspension, and add a pH regulator to adjust the pH of the suspension to 7.5; wherein, the amount of polyacrylamide added is 15% of the mass of oyster shell powder;
[0050] S2. Ultrasonic emulsification suspension, heated at 80°C for 120 minutes with constant magnetic stirring, cooled to room temperature, centrifuged for 4 to 8 times, dried and pulverized at 70°C, passed through a 100-mesh sieve to obtain modified oyster shell powder;
[0051] S3. Mix the modified oyster shell powder with sodium carboxymethyl cellulose (the mass ratio of modified oyster shell powder to sodium carboxymethyl cellulose is 30:1), stir evenly, add water to make it coagulate Finally, a hollow ring adsorben...
Embodiment 2
[0052] The preparation of embodiment 2 oyster shell powder modified water treatment agent
[0053] A preparation method of oyster shell powder modified water treatment agent, comprising the following steps:
[0054] S1. Mix oyster shell powder, polyacrylamide and solvent water evenly to obtain a suspension, and add a pH regulator to adjust the pH of the suspension to 8; wherein, the amount of polyacrylamide added is 20% of the mass of oyster shell powder;
[0055] S2. Ultrasonic emulsified suspension, heated at 70°C for 150 minutes with constant magnetic stirring, cooled to room temperature, centrifuged for 4 to 5 times, dried and pulverized at 70°C, passed through a 100-mesh sieve to obtain modified oyster shell powder;
[0056] S3. Mix the modified oyster shell powder with sodium carboxymethyl cellulose (the mass ratio of modified oyster shell powder to sodium carboxymethyl cellulose is 35:1), stir evenly, add water to make it coagulate Finally, make a hollow ring adsorbent...
Embodiment 3
[0057] The preparation of embodiment 3 oyster shell powder modified water treatment agent
[0058] A preparation method of oyster shell powder modified water treatment agent, comprising the following steps:
[0059] S1. Mix oyster shell powder, polyacrylamide and solvent water evenly to obtain a suspension, and add a pH regulator to adjust the pH of the suspension to 7; wherein, the amount of polyacrylamide added is 20% of the mass of oyster shell powder;
[0060] S2. Ultrasonic emulsified suspension, heated at 90°C for 90 minutes with constant magnetic stirring, cooled to room temperature, centrifuged for 4 to 5 times, dried and pulverized at 70°C, passed through a 100-mesh sieve to obtain modified oyster shell powder;
[0061] S3. Mix the modified oyster shell powder with sodium carboxymethyl cellulose (the mass ratio of modified oyster shell powder to sodium carboxymethyl cellulose is 30:1), stir evenly, add water to make it coagulate Finally, make a hollow ring adsorbent,...
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