Based on the composition of thesynthetic effluent,and
the results achieved withthe individual substrates in theMECs,
we expected a hydrogen yield of 1200 mL-H2/g-COD. Thus, the
FEI-Syn produced 33%less hydrogen than expected.Onamolar
basis, we obtained an average of 3.2 mol-H2/mol-substrate
using the SSI inoculum, and 2.6 mol-H2/mol-substrate using
the FEI inoculum with the synthetic effluent