A kind of treatment method of leather sewage
A treatment method and technology for leather sewage, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. problems such as large impact, to achieve the effect of reducing operating costs, reducing processing time, and improving processing effects
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Embodiment 1
[0043] Expansion of treated bacteria:
[0044] (a) Add 1 kg of treated bacteria to 9 kg of culture medium for primary expansion to obtain 10 kg of primary expansion medium; the culture medium is an aqueous solution of sugarcane molasses with a mass fraction of 4%; the pH of the culture medium is 5.0; aeration The volume is 70L / min; the culture time is 20 hours;
[0045] (b) Add 10 kg of the first-stage expansion culture solution obtained in step (a) into 90 kg of the culture solution for secondary expansion to obtain 100 kg of the second-level expansion culture solution; the culture medium is an aqueous solution of sugarcane molasses with a mass fraction of 4% ; The pH of the culture solution is 5.0; the ventilation rate is 70L / min; the culture time is 22 hours;
[0046] (c) Add 100kg of the secondary expansion culture solution obtained in step (b) into 100kg of the culture solution for three-level expansion to obtain 200kg of activated bacteria liquid; the culture medium is ...
Embodiment 2
[0056] Expansion of treated bacteria:
[0057] (a) Add 1 kg of treated bacteria to 9 kg of culture solution for primary expansion to obtain 10 kg of primary expansion solution; the culture solution is an aqueous solution of sugarcane molasses with a mass fraction of 6%; the pH of the culture solution is 5.5; aeration The volume is 90L / min; the culture time is 24 hours;
[0058] (b) Add 10 kg of the first-stage expansion culture solution obtained in step (a) into 90 kg of the culture solution for secondary expansion to obtain 100 kg of the second-level expansion culture solution; the culture medium is an aqueous solution of sugarcane molasses with a mass fraction of 6%. ; The pH of the culture solution is 5.5; the ventilation rate is 90L / min; the culture time is 26 hours;
[0059] (c) Add 100kg of the secondary expansion culture solution obtained in step (b) into 100kg of the culture medium for three-level expansion to obtain 200kg of activated bacteria liquid; the culture med...
Embodiment 3
[0069] Expansion of treated bacteria:
[0070] (a) Add 1 kg of treated bacteria to 9 kg of culture medium for primary expansion to obtain 10 kg of primary expansion medium; the culture medium is an aqueous solution of sugarcane molasses with a mass fraction of 5%; the pH of the culture medium is 6.0; The volume is 80L / min; the culture time is 22 hours;
[0071] (b) Add 10 kg of the first-level expansion culture solution obtained in step (a) into 90 kg of the culture medium for second-level expansion to obtain 100 kg of the second-level expansion culture solution; the culture medium is an aqueous solution of sugarcane molasses with a mass fraction of 5% ; The pH of the culture solution is 6.0; the ventilation rate is 80L / min; the culture time is 24 hours;
[0072] (c) Add 100kg of the secondary expansion culture solution obtained in step (b) into 100kg of the culture solution for three-level expansion to obtain 200kg of activated bacteria liquid; the culture medium is an aqueo...
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