Method for preparing modified biochar with aquatic plant waste and hematite
A technology of aquatic plants and hematite, which is applied in the field of biochar adsorption materials, can solve the problems of complex and expensive preparation methods, and achieve the effects of high adsorption performance, simple preparation methods, and excellent treatment effects
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[0036] Example Al.
[0037] (1) Air-dry the reeds to make the internal moisture content less than 10%, then pulverize the reeds through a 100-mesh sieve to obtain reed powder.
[0038] (2) After the hematite is pulverized by a pulverizer, the hematite is pulverized by grinding in a mortar, and then passed through a 100-mesh sieve to obtain hematite powder.
[0039] (3) Weigh 4g of hematite powder and put it in 100ml of deionized water. After 1h of post-treatment with an ultrasonic generator, a stable suspension is obtained.
[0040] (4) Weigh 40g of the reed powder described in step (1), soak it in the suspension of step (3), and stir it with a mixer for a certain period of time, then dry it at 80°C to obtain reed and red The iron ore is thoroughly mixed.
[0041] (5) Weigh 100g of reed and hematite in step (4) to fully mix, place the mixed sample in a box atmosphere furnace, and pour nitrogen at a flow rate of 400 mL / min into the furnace to maintain an oxygen-deficient environment in ...
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[0042] Example A2.
[0043] (1) Dry the cattail in the air naturally to make the internal moisture content less than 10%, then pulverize it with a pulverizer and pass it through a 100-mesh sieve to obtain cattail powder.
[0044] (2) After the hematite is pulverized by a pulverizer, the hematite is pulverized by grinding in a mortar, and then passed through a 100-mesh sieve to obtain hematite powder.
[0045] (3) Weigh 4g of hematite powder and put it in 100ml of deionized water. After 1h of post-treatment with an ultrasonic generator, a stable suspension is obtained.
[0046] (4) Weigh 40g of cattail powder described in step (1), soak it in the suspension of step (3), and stir it with a mixer for a certain period of time, then dry it at 80°C to obtain cattail and red The iron ore is thoroughly mixed.
[0047] (5) Weigh the 100g cattails and hematite in step (4) to fully mix, place the mixed sample in a box-type atmosphere furnace, and inject nitrogen at a flow rate of 400 mL / min into ...
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