Preparation method for activated carbon and water purification filter element and water purifier manufactured by same
A technology of activated carbon and fruit shells, which is applied in water/sewage treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the research problems of preparing activated carbon from fruit shells, achieve low cost, good adsorption performance, and ecological protection environmental effects
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Embodiment 1
[0018] A preparation method of activated carbon, characterized in that: comprising the following steps:
[0019] (1) Selection of husks: manual screening of radishes sorbifolia husks that are free of mildew and well preserved;
[0020] (2) Pretreatment of the husk: crush the sorbetia sorbifolium husk to 2 cm, and dry it at a high temperature of 100°C for 2 hours;
[0021] (3) Zinc chloride impregnation: Prepare a zinc chloride solution with a mass fraction of 30%, and mix the pretreated sorbifolium sorbifolium particles with the prepared zinc chloride solution with a mass percentage concentration of 30% at a ratio of 1.5:1 Mix, stir evenly and soak for not less than 40min;
[0022] (4) Carbonization and activation: The impregnated sorbifolia granules are first heated and carbonized in a drying oven at 210°C for 4 hours; then put into a resistance furnace at 300°C to increase the temperature and enter the activation stage. The activation time is controlled at 60 minutes , get...
Embodiment 2
[0027] A preparation method of activated carbon, characterized in that: comprising the following steps:
[0028] (1) Selection of husks: manual screening of radishes sorbifolia husks that are free of mildew and well preserved;
[0029] (2) Pretreatment of the husk: crush the sorbetia sorbifolium husk to 2.5 cm, and dry it at a high temperature of 110°C for 3 hours;
[0030] (3) Zinc chloride impregnation: Prepare a zinc chloride solution with a mass fraction of 50%, and mix the pretreated sorbifolium sorbifolium particles with the prepared zinc chloride solution with a mass percentage concentration of 50% at a ratio of 2.5:1 Mix, stir evenly and soak for not less than 40min;
[0031] (4) Carbonization and activation: The impregnated sorbifolia granules are first heated and carbonized in a drying oven at 250°C for 4 hours; then placed in a resistance furnace at 350°C to increase the temperature and enter the activation stage, the activation time is controlled at 90 minutes , ...
Embodiment 3
[0036] A preparation method of activated carbon, characterized in that: comprising the following steps:
[0037] (1) Selection of husks: manual screening of radishes sorbifolia husks that are free of mildew and well preserved;
[0038] (2) Pretreatment of the husk: crush the sorbetia sorbifolia husk to 3 cm, and dry it at a high temperature of 120°C for 4 hours;
[0039] (3) Zinc chloride impregnation: Prepare a zinc chloride solution with a mass fraction of 70%, and mix the pretreated sorbifolium sorbifolium particles with the prepared zinc chloride solution with a mass percentage concentration of 70% at a ratio of 3.5:1 Mix, stir evenly and soak for not less than 40min;
[0040] (4) Carbonization and activation: The impregnated sorbifolia granules are first heated and carbonized in a drying oven at 290°C for 4 hours; then placed in a resistance furnace at 400°C to increase the temperature and enter the activation stage, the activation time is controlled at 120min , get the...
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