I want to add wastewater sludge to a FBR treatment system. So how much sludge do i need as an inoculum for Fluidized Bed Bioreactor?
Chosing convenient inoculum source is important to obtain rapid reactor start-up and lessening the time required for the starting biofilm formation. Generally bacterial flora suited the target wastewater have to be used. Generally, the volume of inoculum used must be at least 10% (v/v) to get good result.
Hello, in our research group we use AFBR to produce hydrogen and methane from different substrates (vinasse, sugarcane juice, sucrose, glycerol ..) and the application of 10%v/v inoculum as been satisfactory.
According to my experience commonly 10 %vol/vol inoculum is sufficient. If biofilm formation is a problem, try several day operation with total recycle of effleunt with substrate amendment.
Best regards
Vit
Dear Hossein,
As Prof Khaled says 10-12% (v/v) inoculum should be sufficient for the process. In addition to that, you may consider the suggestion of recycling given by Vit.
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