Enhanced synchronous nitrification and denitrification process for adding AHLs signal molecules into biological moving bed process
A technology of biological moving bed and signal molecules, which is applied in the field of sewage treatment, can solve the problems such as long start-up period of film formation, and achieve the effects of increasing biodiversity, increasing biomass, and increasing biological activity
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[0023] figure 1 This is a schematic diagram of the reaction device of this embodiment.
[0024] 1) Add modified polymer suspended biological carrier (filler) into the IFFAS reactor, and the dosage of biological carrier (filler) is 30% of the effective volume of the reactor;
[0025] 2) The return sludge from the secondary settling tank of the municipal sewage treatment plant is used to start the IFFAS reactor, and the closed loop method is used for film formation. During the period, 25nmol / L of AHLs quorum sensing signal molecule mixture is added to the influent water, and the mixture is C4-HSL (N-Butyryl-DL-homoserine lactone), C8-HSL (N-Octanoyl-DL-homoserine lactone), 3OHC12-HSL (N-(3-Hydroxydodecanoyl)-DL-homoserine lactone), C14-HSL (N-Tetradecanoyl -DL-homoserine lactone) is mixed with the same quality, and the sludge concentration in the reactor after inoculation is 2500mg / L;
[0026] 3) The reactor adopts a continuous flow water inlet method, and the water f...
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