Codigestion
of
energy
crops
and
crop residues
with
cow
manure, as
well
as
digestion
of
energy
crops
alone
in
batch
leach
bed
reactors
with
and
without
a second
stage
upflow
anaerobic
sludge
blanket
reactor (UASB)
or methanogenic
filter (MF)
were
evaluated.