The Impact of Aerobic and Anaerobic Processes on Gas Emissions During Co-Composting of Specified Risk Materials and Cattle Manure
Abstract
A
series
of
experiments
were
conducted
using
a
pilot-scale
column
reactor
to
investigate
the
effects
aerobic
and
anaerobic
biological
activities
on
gas
emissions
during
co-composting
Specified
Risk
Materials
(SRM)
with
cattle
manure.
The
was
designed
two
zones:
lower
zone
an
upper
zone.
temporal
spatial
distributions
CO2,
CH4,
NH3
measured
in
both
zones.
generated
zones
unused
supplied
air
collected
through
outlet
as
cumulative
emissions.
study
examined
influence
SRM
content
(10,
20,
30%),
manure
type
(M1,
M2,
M3),
content,
phosphogypsum
(PG,
16%)
carbon
loss.
Variations
pH,
nitrogen-15
isotope
(δ15N),
nitrate
ions
(\(\:{NO}_{3}^{-}\)),
ammonium
(\(\:{NH}_{4}^{+}\))
process
determined
discussed.
results
show
that
can
be
consumed
by
bacteria
almost
effectively
manure;
however,
consumption
rate
depends
type.
Additionally,
treatment
is
more
effective
for
than
when
percentage
exceeds
20%.
generates
significantly
CH4
composting,
making
aeration
method
essential
reduce
To
minimize
CH₄
production,
should
kept
below
PG
but
may
adversely
affect
process.
increase
nitrogen
conversion
rate.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Дек. 4, 2024
Язык: Английский