Composite carbon source for sewage treatment
A composite carbon source and sewage treatment technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, special compound water treatment, etc. Use and other issues to achieve the effects of fast digestion and absorption, utilization efficiency, green environmental protection, and easy-to-obtain varieties
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Embodiment 1
[0026] Add 0.1% methanol solution into the liquid storage tank, add 0.1% ethanol solution under stirring condition, then add 25% sodium acetate and 2% glucose into the mixture, stir well until the solid matter is completely dissolved, then slowly add 1 % molasses solution, then add 3% humic acid fermentation broth (COD=50,000 mg / L) and mix in the system, continue to stir until the COD reaches 300,000 mg / L, filter to obtain a composite carbon source.
[0027] The laboratory conducted a small test experiment. The bacteria were taken from the activated sludge of a sewage treatment plant, and the compound carbon source was used for long-term domestication. When the dosage of carbon source is 0.4mL / L and the reaction time is 4h, the influent and effluent indicators of the system are as follows:
[0028]
Embodiment 2
[0030] Add 1% methanol solution into the liquid storage tank, add 0.5% ethanol solution under agitation, then add 18% sodium acetate and 0.5% glucose to the mixture, stir well until the solid matter is completely dissolved, then slowly add 1 % molasses solution, then add 2% humic acid fermentation broth (COD=30,000 mg / L) and mix it into the system, continue to stir until the COD reaches 200,000 mg / L, and filter to obtain a new composite carbon source.
[0031] The laboratory conducted a small test experiment. The bacteria were taken from the activated sludge of a sewage treatment plant, and the compound carbon source was used for long-term domestication. When the dosage of carbon source is 0.5 mL / L and the reaction time is 2 hours, the influent and effluent indicators of the system are as follows:
[0032]
Embodiment 3
[0034] Add 23% sodium acetate and 1% glucose into the liquid storage tank, then slowly add 0.5% molasses solution, stir well until the solid matter is completely dissolved, then add 1% humic acid fermentation broth (COD=40,000 mg / L) and mix In this system, continue to stir until the COD reaches 250,000 mg / L, and filter to obtain a new composite carbon source.
[0035] The laboratory conducted a small test experiment. The bacteria were taken from the activated sludge of a sewage treatment plant, and the compound carbon source was used for long-term domestication. When the dosage of carbon source is 0.32 mL / L and the reaction time is 2 hours, the influent and effluent indicators of the system are as follows:
[0036]
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