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[DAIALOS]

Hi Everyone

 

I have been reading about Anaerobic Digestion lately. There are basically to main types of digestion based on the working temperature, Mesophilic (almost ambient temperature) and Thermophilic (temperature around 55C). From what I have read so far it looks like the thermophilic type of digestion is much more efficient in terms of Biogas produced, retention time needed, and COD reduction.  Apparently this type of digestions seems to be more difficult to maintain stability, the other factor that tends to be a drawback seems to be the energy needed to increment the temperature of the digester to around 55 Celsius.

 

I would think that this type of digestion should be ideal for alcohol distilleries that produce high quantity of vinasse.  Especially because the additional energy input to maintain adequate temperature will not be needed due to the high temperature that the vinasse comes out of the distillation process.

 

Unfortunately I could not find enough literature or studies about this demonstrating the superiority of the thermophilic digestion over the mesophilic one for this type of processes as I could think. I know that many distilleries in Brazil for example use this type of anaerobic digestion.  But finding literature about this has been unsuccessful.

 

Can you guys help me with this? Literature, studies or anything that could bring me more information about this interesting topic?

 

Thanks you all