A rapid cultivation method of polyculture denitrification and desulfurization granular sludge
A technology of denitrification desulfurization and granular sludge, applied in biological sludge treatment, anaerobic digestion treatment and other directions, can solve the problem of not clearly explaining the steps and characteristics of granular sludge cultivation, and achieve good biological activity and hydraulic performance. , Improve operating efficiency and operating stability, and form the effect of short cycle
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specific Embodiment approach 1
[0022] Specific embodiment 1: In this embodiment, a method for rapidly culturing polyculture denitrification desulfurization granular sludge is realized by the following steps: 1. Take flocculent sludge from the secondary sedimentation tank of an urban sewage plant, and put it into a three-phase separator equipped with flocculent sludge. UASB or EGSB reactor (the role of the three-phase separator is to prevent the massive loss of inoculated sludge); 2. Prepare simulated wastewater containing sulfide, nitrate and organic matter, and start the reactor; and add a concentration of 1 to the simulated wastewater -5g / L NaHCO 3 , to provide a carbon source for the autotrophic microorganisms in the system; the molar ratio of sulfide, nitrate and organic matter in the simulated wastewater is 1:1:1, and the pH value is 7; 3. The simulated wastewater is pumped into the UASB or EGSB reactor, control the temperature of the reactor to 30 °C, domesticate the polyculture denitrification and de...
specific Embodiment approach 2
[0024] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the pH of the simulated wastewater in step 2 is 8. Other steps and parameters are the same as in the first embodiment.
specific Embodiment approach 3
[0025] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the pH of the simulated wastewater in step 2 is 6. Other steps and parameters are the same as in the first embodiment.
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