Plastic particles for water surface oil fouling recovery treatment
A technology for plastic particles and oil pollution on water surface, which is applied in the directions of grease/oily substance/float removal device, separation method, liquid separation, etc. The effect of saving natural resources
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Embodiment 1
[0024] A kind of plastic granule used for the recovery and treatment of water surface oil pollution, the specific preparation method is as follows:
[0025] 1) Add microcrystalline cellulose to sulfuric acid solution, heat to 40°C, stir and react for 3 hours, then add pure water 10 times the amount of sulfuric acid solution to stop the reaction, wash the product with pure water and centrifuge for 4 times, the obtained precipitate Dialyze in pure water for 5 days until the aqueous solution is neutral, add the dialyzed precipitate into pure water, oscillate and disperse to obtain a nanocellulose suspension;
[0026] 2) Add epichlorohydrin to the nanocellulose suspension, pour the mixed solution into the mold, and place it in an oven at 60°C for 40 minutes to react to obtain a cellulose hydrogel, and then wash it with deionized water to remove impurities until it is washed It is neutral, and then freeze-dried at -55°C for 40 hours to obtain cellulose airgel;
[0027] 3) Under the ...
Embodiment 2
[0038] A kind of plastic granule used for the recovery and treatment of water surface oil pollution, the specific preparation method is as follows:
[0039] 1) Add microcrystalline cellulose to sulfuric acid solution, heat to 45°C, stir and react for 2.5 hours, then add pure water 11 times the amount of sulfuric acid solution to stop the reaction, wash the product with pure water and centrifuge 4 times to obtain The precipitate was dialyzed in pure water for 6 days until the aqueous solution was neutral, and the dialyzed precipitate was added to pure water, and the nanocellulose suspension was obtained after shaking and dispersing;
[0040] 2) Add epichlorohydrin to the nanocellulose suspension, pour the mixed solution into a mold, and place it in a 65°C oven for 35 minutes to obtain a cellulose hydrogel, and then wash it with deionized water to remove impurities until it is washed It is neutral, and then freeze-dried at -60°C for 35 hours to obtain cellulose airgel;
[0041]...
Embodiment 3
[0052] A kind of plastic granule used for the recovery and treatment of water surface oil pollution, the specific preparation method is as follows:
[0053] 1) Add microcrystalline cellulose to sulfuric acid solution, heat to 50°C, stir and react for 2 hours, then add pure water 13 times the amount of sulfuric acid solution to stop the reaction, wash the product with pure water and centrifuge for 5 times, and the obtained precipitate Dialyze in pure water for 7 days until the aqueous solution is neutral, add the dialyzed precipitate into pure water, oscillate and disperse to obtain a nanocellulose suspension;
[0054] 2) Add epichlorohydrin to the nanocellulose suspension, pour the mixed solution into a mold, and place it in a 70°C oven for 30 minutes to obtain a cellulose hydrogel, and then wash it with deionized water to remove impurities until it is washed neutral, then freeze-dried at -65°C for 30 hours to obtain cellulose airgel;
[0055] 3) Under the protection of nitro...
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Abstract
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