Mostly of my research was carried out by two- or three-stage reactor that operated under mesophilic temp., anaerobic digestion process via dark fermentation which I found that the concentration of hydrogen sulfide (H2S) will decrease when increasing the stage of reactor (H2S in first reactor > H2S in second reactor).
So, how possible that H2S will increase its concentration (H2S in first reactor < H2S in second reactor) in anaerobic digestion process and why?
Thank you in advance for your kindly guidance.
Yes.. If you ferment the substrates with hydrogen providing bacteria in the first stage then hudrogen gas would produce and as there is no hydrogen reducing bacteria which produce hydrogen sulfide gas there will be less production of H2S gas.. Then, after this stage you can change inoculum for methanogenesis process.
Sadib Bin Kabir thanks for your kindly answer my question.
Appreciate for your advise.
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