Formaldehyde-removing polymer composite material and preparation method thereof

[0035] It should be noted that the preparation method of modified activated carbon includes the following steps:

[0036] 1) Add the activated carbon to 0.1mol / L hydrochloric acid and soak for 24h, then backwash with water until the pH of the filtered water is 6-7, then separate the activated carbon, dry at 30-40℃ for 2-3h, and set aside;

[0037] 2) Mix the activated carbon obtained in step 1) with the composite strain, culture at 35-40°C for 24-36h, and dry at 35-40°C to obtain modified activated carbon;

[0038] The mass ratio of activated carbon to composite strain is 1: (0.1-0.15).

[0039] Among them, the composite strains include formaldehyde degrading bacteria and Bacillus with a mass ratio of 1:1.

[0040] The modified activated carbon prepared above is attached with composite bacterial species, the activated carbon adsorbs formaldehyde in the air, and the composite bacterial species decomposes the adsorbed formaldehyde, thereby enabling the modified activated carbon to continuo

[0054] Example 1

[0055] The modified activated carbon is a microbial modified activated carbon, and the preparation method includes the following steps;

[0056] 1) Add the activated carbon to 0.1mol / L hydrochloric acid and soak for 24h, then backwash with water until the pH of the filtered water is 7, then separate the activated carbon, dry at 40°C for 3h, and set aside;

[0057] 2) Mix the activated charcoal obtained in step 1) with the composite strain, and cultivate it at 35°C for 36h, and dry at 40°C to obtain modified activated carbon; the composite strain includes formaldehyde degrading bacteria with a mass ratio of 1:1 And Bacillus;

[0058] The mass ratio of activated charcoal to composite strain is 1:0.15.

[0059] Example 2

[0060] The modified activated carbon is a microbial modified activated carbon, and the preparation method includes the following steps;

[0061] 1) Add the activated carbon to 0.1mol / L hydrochloric acid and soak for 24 hours, then backwash with water until the pH of the filtered water is 6, then separate the activated carbon, dry at 30°C for 2-3 hours, and set aside;

[0062] 2) Mix the activated carbon obtained in step 1) with the composite strain, and cultivate it at 40°C for 24 hours, and dry at 35°C to obtain modified activated carbon; the composite strain includes formaldehyde degrading bacteria with a mass ratio of 1:1 And Bacillus;

[0063] The mass ratio of activated charcoal to composite strain is 1:0.1.