Method for treating waste water of aquatic bird cultivation through utilizing microalgae
A water poultry breeding wastewater and microalgae technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to achieve a high comprehensive utilization rate
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Embodiment 1
[0026] S1. Put the waterfowl breeding wastewater into the grit chamber for sedimentation to remove large particles;
[0027] S2. Put the sedimented waterfowl breeding wastewater into an anaerobic tank for fermentation, the pH value is controlled at 6.0, the temperature is 25°C, the rotation speed of the agitator is 100rmp, and the fermentation time is 24 hours;
[0028] S3. Putting the waterfowl breeding wastewater through anaerobic fermentation into an open breeding pond to inoculate Chlorella pyrenoidesa and carry out open cultivation; wherein, the inoculation amount of Chlorella pyrenoidosa is 15% of the waterfowl breeding wastewater volume; pH is controlled The value is 6.0, the temperature is 25°C, the light intensity is 2500lx, and the culture time is 2d;
[0029] S4. Put the waterfowl breeding waste water treated in step S3. into a closed bioreactor, and feed carbon dioxide to continue the reaction; control the volume fraction of carbon dioxide in the air in the closed ...
Embodiment 2
[0032] S1. Put the waterfowl breeding wastewater into the grit chamber for sedimentation to remove large particles;
[0033] S2. Put the sedimented waterfowl breeding wastewater into an anaerobic tank for fermentation, the pH value is controlled at 5.0, the temperature is 20°C, the rotation speed of the agitator is 50rmp, and the fermentation time is 12 hours;
[0034] S3. Putting the water fowl breeding waste water through anaerobic fermentation into an open culture pond to inoculate Chlorella pyrenoidesa and carry out open culture; wherein, the inoculation amount of Chlorella pyrenoidosa is 10% of the water fowl breeding waste water volume; control pH The value is 7.0, the temperature is 32°C, the light intensity is 2000lx, and the culture time is 1d;
[0035] S4. Put the waterfowl breeding waste water processed through step S3. into a closed bioreactor, and feed carbon dioxide to continue the reaction; control the volume fraction of carbon dioxide in the air in the closed b...
Embodiment 3
[0038] S1. Put the waterfowl breeding wastewater into the grit chamber for sedimentation to remove large particles;
[0039] S2. Put the sedimented waterfowl breeding wastewater into an anaerobic tank for fermentation, the pH value is controlled at 8.0, the temperature is 30°C, the rotation speed of the agitator is 200rmp, and the fermentation time is 24 hours;
[0040] S3. Putting the water fowl breeding waste water through anaerobic fermentation into an open culture pond to inoculate Chlorella pyrenoidesa and carry out open culture; wherein, the inoculation amount of Chlorella pyrenoidosa is 20% of the water fowl breeding waste water volume; control pH The value is 7.0, the temperature is 32°C, the light intensity is 3000lx, and the breeding time is 3 days;
[0041] S4. Put the waterfowl breeding waste water treated in step S3. into a closed bioreactor, and feed carbon dioxide to continue the reaction; control the volume fraction of carbon dioxide in the air in the closed bi...
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