Preparation method of soil conditioner applicable to harmful microorganisms
A soil conditioner and microbial technology, applied in the field of soil conditioning, can solve the problems of unsatisfactory conditioning effect and high production cost, and achieve the effects of reducing the probability of disease occurrence, improving fertility and water holding capacity, and high adsorption capacity
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Embodiment 1
[0012] A preparation method suitable for harmful microorganism soil conditioner, comprising the following steps:
[0013] 1) Preparation of modified biochar: Roast shell powder under oxygen-limited conditions, and the temperature of calcination is 120℃ for 6min; 200℃ for 12min; 400℃ for 10min; 620℃ for 100min; 400℃ for 45min; 200℃ Calcining for 25 minutes; calcination at 100°C for 40 minutes; shell powder contains 2% zinc borate, 3% magnesium hydroxide and 0.1% manganese acetate. The calcined shell powder was naturally cooled in a dry environment, modified by adding 12% hydrochloric acid solution, reacted at 70°C for 2.4 hours, centrifuged to collect the precipitate, washed with water until neutral, and dried to obtain modified biochar. The above modified biochars are sufficiently magnetic and rich in H + The surface of activated carbon is rich in active functional groups such as carboxyl groups and phenolic hydroxyl groups. These functional groups can enhance the adsorption ...
Embodiment 2
[0017] A most preferred preparation method for harmful microorganism soil conditioner, comprising the following steps:
[0018] 1) Preparation of modified biochar: Roast shell powder under oxygen-limited conditions, and the temperature of calcination is 100℃ for 7min; 210℃ for 10min; 410℃ for 10min; 610℃ for 100min; 410℃ for 40min; 200℃ Calcining for 25 minutes; calcination at 100°C for 40 minutes; shell powder contains 1% zinc borate, 2% magnesium hydroxide and 0.3% manganese acetate. The roasted shell powder was naturally cooled in a dry environment, modified by adding 12% hydrochloric acid solution, reacted at 68°C for 2.5 hours, centrifuged to collect the precipitate, washed with water until neutral, and dried to obtain modified biochar. The above modified biochars are sufficiently magnetic and rich in H + The surface of activated carbon is rich in active functional groups such as carboxyl groups and phenolic hydroxyl groups. These functional groups can enhance the adsorp...
Embodiment 3
[0022] A preparation method suitable for harmful microorganism soil conditioner, comprising the following steps:
[0023] 1) Preparation of modified biochar: shell powder was roasted under oxygen-limited conditions, and the roasting temperature was changed as 120°C for 6 minutes; 200°C for 12 minutes; 400°C for 10 minutes; 600°C for 120 minutes; 400°C for 45 minutes; 210°C Calcining for 20 minutes; calcination at 100°C for 40 minutes; shell powder contains 2% zinc borate, 3% magnesium hydroxide and 0.1% manganese acetate. The calcined shell powder was naturally cooled in a dry environment, modified by adding 12% hydrochloric acid solution, reacted at 70°C for 2.4 hours, centrifuged to collect the precipitate, washed with water until neutral, and dried to obtain modified biochar. The above modified biochars are sufficiently magnetic and rich in H + The surface of activated carbon is rich in active functional groups such as carboxyl groups and phenolic hydroxyl groups. These fu...
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