Mining and metallurgy sludge-based forest soil conditioner and preparation method thereof
A soil conditioner and sludge technology, which is applied in the fields of sewage/sludge fertilizer, application, organic fertilizer, etc., can solve the problems of difficult reuse of mining and metallurgical sludge, environmental hazards caused by mining and metallurgical sludge, etc., and promote plant growth. and reproductive organ formation, low cost and simple operation
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Embodiment 1
[0041] Using mining and metallurgy sludge as the main raw material, ferrosilicon waste residue, bentonite, low-grade bauxite, and calcium oxide as stabilizers, soybean straw as auxiliary ingredients, and low-grade phosphate rock, diammonium phosphate, urea, and potassium chloride as regulators , humic acid is the granulation binder; wherein, the main composition of mining and metallurgy sludge is: the dry basis content of nutrient elements (Cu+Zn+Fe+Mn+Mo) is 7.93wt.%, the dry basis content of harmful elements is 0.0068 wt.%, the dry basis content of element (K+Na) is 3wt.%, inorganic anion (SO 4 2- +PO 4 2- +Cl - ) on a dry basis is 4wt.%; the carbon-containing organic matter (dry basis) content is 45wt.%, the N-containing organic matter (dry basis) content is 40wt.%, and the S-containing organic matter (dry basis) content is 10wt.%. The content is 5%, and the pH is 6.0. The composition of the soybean straw is as follows: the dry basis content of elements (Cu+Zn+Fe+Mn+Mo...
Embodiment 2
[0049] Using mining and metallurgy sludge as the main raw material, ferrosilicon waste residue, bentonite, low-grade bauxite, and calcium oxide as stabilizers, soybean straw as auxiliary ingredients, and low-grade phosphate rock, diammonium phosphate, urea, and potassium chloride as regulators , Humic acid is the granulation binder. Among them, the composition of mining and metallurgy sludge is: the dry basis content of nutrient elements (Cu+Zn+Fe+Mn+Mo) is 7.93wt.%, the dry basis content of harmful elements is 0.0067wt.%, and the elements (K+Na ) dry basis content is 4wt.%, inorganic anion (SO 4 2- +PO 4 2- +Cl - ) is 4wt.% on a dry basis; the carbon-containing organic matter (dry basis) content is 50wt.%, the N-containing organic matter (dry basis) content is 40wt.%, and the S-containing organic matter (dry basis) content is 2.6wt.%. The water content is 5% and the pH is 6.0. The composition of the soybean straw is as follows: the dry basis content of elements (Cu+Zn+F...
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