Lignin slow-release water-soluble fertilizer and preparation method thereof
A technology of lignin, water-soluble fertilizer, applied in the preparation of organic fertilizer, sewage/sludge fertilizer, organic fertilizer, etc. problem, to achieve the effect of easy operation, maintaining high activity and low noise
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Embodiment 1
[0056] (1) Add straw organic liquid, solid lignin and lignin degrading enzyme into the reactor according to the mass ratio of 60:10:1.
[0057] (2) Seal the reaction kettle after feeding, control the temperature at 40°C, mix and stir for 4 hours to obtain a mixed solution;
[0058] (3) Transfer the mixed liquid obtained in step (2) to a vacuum decompression concentrator for concentration to obtain a concentrated organic liquid with a water content of 80% and an organic matter content of 5%.
[0059] (4) Adding a strong activator to the concentrated organic liquid obtained in step (3), activating it while oxidizing it, and preparing a lignin slow-release water-soluble fertilizer.
[0060] The lignin degrading enzyme used is manganese peroxidase, which is a commercially available product.
[0061] The strong activator used is sodium hypochlorite, which is a commercially available product, and the addition amount is 2% relative to the quality of the concentrated organic liquid. ...
Embodiment 2
[0065] (1) Add straw organic liquid, solid lignin and lignin degrading enzyme into the reactor according to the mass ratio of 75:25:2.
[0066] (2) Seal the reaction kettle after feeding, control the temperature at 40°C, mix and stir for 4 hours to obtain a mixed solution;
[0067] (3) Transfer the mixed liquid obtained in step (2) to a vacuum decompression concentrator for concentration to obtain a concentrated organic liquid with a water content of 80% and an organic matter content of 5%.
[0068] (4) Adding a strong activator to the concentrated organic liquid obtained in step (3), activating it while oxidizing it, and preparing a lignin slow-release water-soluble fertilizer.
[0069] The lignin degrading enzyme used is lignin peroxidase, a commercially available product.
[0070] The strong activator used is calcium hypochlorite, a commercially available product, and the addition amount is 4% relative to the mass of the concentrated organic liquid.
[0071] The solid lig...
Embodiment 3
[0074] (1) Add straw organic liquid, solid lignin and lignin degrading enzyme into the reactor according to the mass ratio of 60:10:1.
[0075] (2) Seal the reaction kettle after feeding, control the temperature at 40°C, mix and stir for 4 hours to obtain a mixed solution;
[0076] (3) Transfer the mixed liquid obtained in step (2) to a vacuum decompression concentrator for concentration to obtain a concentrated organic liquid with a water content of 80% and an organic matter content of 5%.
[0077] (4) Adding a strong activator to the concentrated organic liquid obtained in step (3), activating it while oxidizing it, and preparing a lignin slow-release water-soluble fertilizer.
[0078] The lignin degrading enzyme used is a mixture of manganese peroxidase and laccase, the mass ratio of which is 1:1, and the manganese peroxidase and laccase are commercially available products.
[0079] The strong activator used is ethyl hypochlorite, a commercially available product, and the ...
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