Biological bacterial fertilizer prepared from glutamic acid fermentation wastes
A technology of fermentation waste and biological bacterial fertilizer, which is applied in the field of fermentation waste liquid treatment in the biological fermentation industry, can solve the problems of affecting the ecological environment, unsustainable fertilizer efficiency, and low utilization rate, so as to reduce production costs, reduce raw material costs, and improve utilization rate effect
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Embodiment 1
[0029] A biological bacterial fertilizer prepared by utilizing glutamic acid fermentation waste is prepared according to the following method:
[0030] Step 1) Filtration of the fermentation broth: the glutamic acid fermentation broth is filtered and sterilized by a microfiltration membrane, and the retentate and the filtrate are collected respectively; The retentate and the concentrated solution are combined into feed solution A for subsequent use; wherein, the microfiltration membrane is an inorganic ceramic membrane, the molecular weight cutoff is 2000MW, and the microfiltration temperature is 40°C; the molecular weight cutoff of the ultrafiltration membrane is 300MW, and the ultrafiltration temperature is 40°C;
[0031] Step 2) Decolorization, concentration and crystallization: The permeate obtained in step (1) is pumped into a decolorization tank for decolorization treatment, and activated carbon with a mass of 0.5% of the permeate is added to the decolorization tank, and ...
Embodiment 2
[0038] A biological bacterial fertilizer prepared by utilizing glutamic acid fermentation waste is prepared according to the following method:
[0039] Step 1) Filtration of the fermentation broth: the glutamic acid fermentation broth is filtered and sterilized by a microfiltration membrane, and the retentate and the filtrate are collected respectively; The retentate and the concentrated solution are combined into feed solution A for subsequent use; wherein, the microfiltration membrane is an inorganic ceramic membrane, the molecular weight cutoff is 2000MW, and the microfiltration temperature is 40°C; the molecular weight cutoff of the ultrafiltration membrane is 300MW, and the ultrafiltration temperature is 40°C;
[0040] Step 2) Decolorization, concentration and crystallization: The permeate obtained in step (1) is pumped into a decolorization tank for decolorization treatment, and activated carbon of 1% by mass of the permeate is added to the decolorization tank, and the te...
Embodiment 3
[0047] Fertilizer efficiency test of the fertilizer of the present invention
[0048] 1. Fertilizer efficiency test for planting rice:
[0049] Two treatment experimental fields were set up, the planting time was 2013, and the planting area was one mu, which were the control group and the experimental group. Control group: compound fertilizer (N23-P7-K6); experimental group: biological bacterial fertilizer prepared in Example 1; the amount of fertilizer used in each group of test fields is 50kg, and the planting conditions are exactly the same. Yield increase rate; simultaneously detect the number of grains per ear, 1000-grain weight and the number of empty rice grains. The test results are shown in Table 1:
[0050] Table 1
[0051] group Number of empty seedlings (grain / ear) Number of grains per ear (grain / ear) 1000-grain weight (g) Yield per mu (kg) control group 5.3 60.7 25.9 461.2 test group 3.1 68.9 31.3 ...
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