Method for preparing bioorganic fertilizer by using city life sludge
A technology of municipal domestic sludge and bio-organic fertilizer, which is applied in the preparation of organic fertilizers, the treatment of bio-organic parts, organic fertilizers, etc., can solve the problems of large spread of germs, pollution, low nutrient content, and high labor intensity, and achieve low cost And the effect of safe and clean production, improving treatment efficiency and avoiding secondary pollution
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Embodiment 1
[0030] The preparation of embodiment 1 anaerobic bacteria agent
[0031] The anaerobic bacteria agent used in the method of the present invention is the fermented liquid prepared by mixed culture of Lactobacillus acidophilus (Product No.: CGMCC 1.1854) and Saccharomyces cerevisiae (Commodity No.: CGMCC2.610). The color of the fermented liquid is brown, the total number of viable bacteria on the production date is 1.5 billion / mL, and it has a sweet and sour taste.
[0032] 1. Preparation of anaerobic starter by fermenting acidophilus lactic acid bacteria
[0033] In this example, Lactobacillus acidophilus (CGMCC 1.1854) was selected for fermentation, and the pH value could be reduced to about 3.6 within 48 hours.
[0034] Preparation method: 1000 parts by weight of water are dissolved into the following ingredients: 1 part by weight of brown sugar, 3 parts by weight of glucose, 0.1 part by weight of protein powder, 0.1 part by weight of ammonium citrate, 0.054 parts by weight ...
Embodiment 2
[0039] The preparation of embodiment 2 aerobic bacteria agent
[0040] The aerobic bacterial agent is Bacillus subtilis (product code: AS 1.936), adopts the common liquid submerged fermentation method, uses the nutrient gravy medium for the seed medium, and the fermentation production medium is soybean powder and starch as the main raw materials. Universal medium. Put the culture medium in a 30 cubic fermenter, the fermentation volume is 65% of the tank volume, autoclave at 121°C for 1.5 hours, cool to 37±1°C, inoculate the cultivated Bacillus subtilis seeds in the seed tank In the fermenter, the inoculum size was 5% of the fermentation volume. Aerated and fermented for 35 hours, the aeration ratio was 1:1.2. When the sporulation rate of the thalline is 90%, stop the fermentation, add the filter aid plate and frame press filter, the filter cake is dried by boiling drying, the spore content of the obtained bacterium powder is 800-1000CFU / gram, and the bacterium powder is used...
Embodiment 3
[0042] The sludge with a moisture content of about 80% is transported into the anaerobic fermentation workshop, and every cubic sludge is evenly sprayed with 1.5 liters of the anaerobic bacterial agent prepared in Example 1 to obtain a mixture 1, and then mix the mixture 1, crop stalk powder 1: 2.0 The volume ratio is evenly mixed, piled up for anaerobic fermentation, and fermented for 24 hours at a temperature above 20°C, and the sludge mixture is basically odorless.
[0043] The sludge mixture after anaerobic fermentation is added with fermentation auxiliary materials (bone meal, soybean meal powder, etc.) accounting for 20% of the total volume of the sludge mixture, and the moisture content is adjusted to 50% to obtain mixture 2; 600 grams of mixture 2 is inoculated per ton of Example 2 The prepared aerobic bacterial agent is stirred and mixed, and then enters the tank-type fermentation bin through a screw conveying hopper, and the height of the material is 80-100 cm. The t...
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