Method for producing organic seaweed fertilizer employing algae processing waste and prepared fertilizer
A seaweed fertilizer and waste technology, which is applied to organic fertilizers, inorganic fertilizers, ammonium salt fertilizers, etc., can solve the problems of resource waste, low utilization rate of large seaweed and microalgae processing wastes, waste pollution, etc. The effect of short cycle, promotion of comprehensive utilization, and easy operation
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Embodiment 1
[0033]The kelp slag powder after washing, dehydration and drying is passed through an 80-mesh sieve to make kelp slag powder with uniform particle size, and mixed with the chlorella slag after washing, dehydration and freeze-drying in a mass ratio of 1:1, Suspend with acetic acid-sodium acetate buffer solution with pH 5.0, the mass volume ratio of algal residue to buffer is 1:15, add 2% cellulase according to the mass ratio of enzyme to algal residue, extract at 55°C for 72 hours, and extinguish at 100°C Enzyme activity for 5 minutes; B. Adjust pH to 4.2, add 1% pectinase, temperature 50°C, extract for 72 hours, inactivate enzyme activity at 100°C for 5 minutes; C. Adjust pH to 6.0, finally add 1% papain, temperature 55°C, soak Extract for 48 hours, inactivate the enzyme at 100°C for 5 minutes, separate the algae dregs from the solid and liquid to obtain the enzymolysis supernatant; vacuum concentrate the enzymolysis supernatant to a specific gravity of 1.0g / ml; the solid after...
Embodiment 2
[0035] Powder the mixed slag of kelp and Eucheuma after washing, dehydration, and drying, pass through an 80-mesh sieve to make seaweed slag powder with uniform particle size, and mix it with the spirulina slag after washing, dehydration, and freeze-drying at a ratio of 2:1. Proportional mixing, with 1% Na 2 CO 3 Digest the solution, extract at 60°C for 60 hours; adjust the pH to 4.5, add 2% cellulase and 1% pectinase according to the mass ratio of enzyme:algal residue, extract at 50°C for 72 hours, and inactivate the enzyme activity at 100°C 5min; adjust the pH to 5.5, finally add 1% papain, extract at 55°C for 48h, inactivate the enzyme at 100°C for 5min, and separate the solid-liquid of the algae residue enzymolysis solution; the enzymolysis supernatant is vacuum concentrated to a specific gravity of 1.0g / ml; the solid matter after the above solid-liquid separation, that is, the seaweed residue after enzymatic hydrolysis treatment, was leached with 90% ethanol for 12 hour...
Embodiment 3
[0037] Powder the washed, dehydrated, and dried euglena dregs, pass through an 80-mesh sieve to make seaweed dregs with uniform particle size, and mix them with washed, dehydrated, and freeze-dried chlorella dregs in a ratio of 2:1 , suspending with a buffer solution with a pH of 6.0, and the ratio of algae residue to buffer solution is 1:15. Add 2.5% cellulase to the mixed system according to the mass ratio of enzyme / algal residue, extract at 45°C for 72 hours, inactivate the enzyme at 100°C for 4 minutes; adjust the pH to 3.5, add 2% pectinase, extract at 40°C for 72 hours, Inactivate the enzyme activity at 100°C for 4 minutes; adjust the pH to 5.5, finally add 1% papain, extract at 60°C for 72 hours, inactivate the enzyme activity at 100°C for 4 minutes, and separate the solid-liquid separation of the algae residue enzymolysis solution; concentrate the enzymolysis supernatant in vacuum to The specific gravity is 1.2g / ml; the solid matter after the above solid-liquid separat...
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