Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Ноя. 13, 2024
This
study
aimed
to
investigate
the
impact
of
incorporating
mature
compost
on
harmlessness
and
maturity
level
composting
from
swine
manure
carcasses
industrialized
pig
farms
in
continuously
running
large-scale
silo
reactor
systems.
The
potential
human
or
animal
bacterial
pathogens
core
community
were
analyzed
by
high-throughput
sequencing
16S
rRNA
gene
amplicons.
results
showed
that
addition
GD
group
significantly
increased
temperature
all
depths,
accumulated
compost,
germination
index
(75.43%)
compared
HN
without
compost.
High-throughput
revealed
dominated
genera
Abstract
The
present
study
aimed
to
accelerate
the
humification
and
investigate
how
MnO
2
modification
of
biochar
(MBC)
drives
humus
formation
during
composting
with
chicken
manure.
In
this
study,
compared
control
group
(CK),
addition
MBC
caused
an
increase
in
concentration
both
humic
acid
(HA),
a
respective
enhancement
29.1%
37.2%.
addition,
also
improved
stability
compost
products.
Hetero
two-dimensional
correlation
spectra
further
exhibited
that
could
alter
mechanism
fractions
composting.
Random
forest
analysis
showed
Microbacterium
,
Bacteroides
Kroppenstedtia
Gracilibacillus
Lentibacillus
were
significantly
related
(
P
<
0.05).
enhanced
absolute
abundance
these
five
genera
structural
equation
model
confirmed
be
indirectly
involved
formation,
through
production
aromatic
compounds
via
secondary
metabolism.
Additionally,
directly
transform
organic
components
into
macromolecular
structures.
Therefore,
might
direct
response
acceleration
These
findings
demonstrate
potential
value
harmless
disposal
hazardous
biowastes
Highlights
changed
fractions.
Key
identified.
Among
biochar,
key
revealed.
Graphical
Environmental Technology & Innovation,
Год журнала:
2024,
Номер
34, С. 103584 - 103584
Опубликована: Март 2, 2024
Composting
is
a
biological
aerobic
fermentation
process
that
decomposes
organic
solid
waste
and
converts
it
into
humus.
However,
in
the
of
mineralization
or
humification
matter,
large
amount
nitrogen
will
be
lost.
Therefore,
very
essential
to
find
strategies
increase
retention
during
composting.
This
study
elucidated
mechanism
underlying
promotion
straw
composting
through
addition
leucine
(TL)
phenylalanine
(TP).
The
results
indicated
total
(TN)
content
TL
TP
final
products
were
92.97%
103.90%
higher
than
initial
composting,
respectively,
92.68%
92.58%
CK
(no
amino
acids
addition)
control
group.
was
due
succession
bacterial
community
structure,
from
low-modularity
relationship
with
small
high
aggregation
number
modular
cooperation.
evolution
complexity
stability
played
an
important
role
transformation.
keystones
regulated
change
function.
this
interaction
made
nitrogen-fixing
gene
(nifH)
abundance
effect
significantly
improve
inhibits
denitrification
temperature.
negative
growth
loss
rate
also
confirmed
key
bacteria.
positive
improving
Environmental Technology,
Год журнала:
2025,
Номер
unknown, С. 1 - 11
Опубликована: Янв. 20, 2025
Actinobacteria
are
widely
used
in
aerobic
composting
of
straw
waste
because
their
good
degradation
effect
on
lignocellulose.
However,
there
few
studies
the
Glycomyces
straw.
In
this
study,
six
laboratory-scale
treatments
were
conducted:
corn
with
inoculation
(CSI),
rice
(RSI),
and
wheat
(WSI).
Additionally,
control
groups
set
up
for
each
type
without
inoculation:
(CS),
(RS),
(WS).
Subsequently,
a
series
chemical
analyses
enzymological
methods
to
assess
effects
environmental
variables,
enzyme
activities,
organic
components.
Also,
high-throughput
sequencing
was
employed
explore
microbial
community
composition
that
greatly
contributed
rate
cellulose
hemicellulose
during
process
Finally,
factors
influencing
WSI
identified
using
structural
equation
models
(SEMs).
The
results
showed
rates
higher
Glycomyces-inoculated
treatment
than
non-inoculated
groups.
Importantly,
highest,
at
68.09%
66.81%,
respectively.
Collectively,
total
nitrogen
structure
top
30
genera
contributing
important
WSI.
This
study
not
only
provides
new
insights
into
regulation
degradation,
but
also
has
great
significance
protection.
