Preparation method for coking soil conditioner
A technology of soil conditioner and preparation steps, which is applied in the field of coking soil conditioner preparation, can solve the problems of less research on environmental soil remediation, and achieve the effects of improving the soil quality of coking soil, good nitrogen retention effect, and increasing porosity
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Embodiment 1
[0015] A preparation method for coking soil conditioner, comprising the following steps:
[0016] 1) Wrap the minced scorpion with tin foil and place it in a tubular carbonization furnace, blow in nitrogen, raise the temperature to the target temperature of 680°C at a rate of 5°C / min, and then keep it for 3 hours; grind the carbonized product and Sieve through a 0.15mm sieve, immerse in 1mol / L hydrochloric acid for 3 hours to remove ash such as calcium carbonate; wash with distilled water after suction filtration until the washing liquid is neutral, put it in an oven at 75°C for 20 hours to get peat The high temperature causes the cellulose of royal family grass to be destroyed in a large amount, so that the surface deposits begin to decrease, the surface smoothness increases, and micropores are formed, which have adsorption effect; at the same time, too much pyrene, phenanthrene, fluorene, Polycyclic aromatic hydrocarbons such as naphthalene and anthracene have high degradati...
Embodiment 2
[0021] A preparation method for coking soil conditioner, comprising the following steps:
[0022] 1) Preparation of grass charcoal: Wrap the minced sage grass with tin foil and place it in a tubular carbonization furnace, blow in nitrogen gas, raise the temperature to the target temperature of 700°C at a rate of 8°C / min, and then keep it for 4 hours; carbonize The product was ground and passed through a 0.18mm sieve, and immersed in 1.5mol / L hydrochloric acid for 4 hours to remove ash such as calcium carbonate; after suction filtration, it was washed with distilled water until the lotion was neutral, and dried in an oven at 80°C for 24 hours. Peat charcoal can be obtained within hours; the high temperature causes the cellulose of royal family grass to be destroyed in a large amount, so that the surface deposits begin to decrease, the surface smoothness increases, and micropores are formed, which have adsorption effect;
[0023] 2) Bamboo charcoal preparation: use moso bamboo a...
Embodiment 3
[0027] A method for preparing a coking soil conditioner, comprising: peat preparation, bamboo charcoal preparation, composting, and compounding, specifically comprising the following steps:
[0028] Preparation of peat charcoal: Rinse the collected imperial bamboo grass with tap water, air-dry it, put it in an oven for drying, and then use a grinder to crush it to 1cm, wrap the imperial bamboo grass powder with tin foil and place it in a tubular carbonization furnace. Nitrogen was introduced, and the temperature was raised to the target temperature of 700°C at a rate of 5°C / min, and then kept for 4 hours; the carbonized product was ground and passed through a 0.16mm sieve, and immersed in 1.5mol / L hydrochloric acid for 4 hours to remove Calcium carbonate and other ash substances; after suction filtration, wash with distilled water until the lotion is neutral, put it in an oven at 75°C for 24 hours to get peat; the high temperature causes the cellulose of royal family grass to b...
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