Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 14, 2023
Abstract
Objective:
We
used
microbiology
and
molecular
biology
techniques
to
screen
out
high
temperature
low
resistant
saprobiotics
for
compost
prepared
a
compound
fermentation
bacteria
agent
rapidly
ferment
cattle
manure
into
high-quality
organic
fertilizer
in
season.
Methods:
Conventional
composting
high-throughput
were
analyze
the
changes
of
physical
chemical
indexes
biodiversity
process
composting,
from
which
strains
obtained,
solid
composite
bactericides
added
verify
effects
on
composting.
Results:
The
conventional
cycle
took
22
days,
diversity
microflora
increased
first
then
decreased.
Composting
microbial
population
key
factors
success
or
failure
Two
tolerant
6
screened
they
efficient
degrading
starch,
cellulose
protein.
bacterial
successfully
with
adjuvant.
preparation
could
make
rise
quickly
at
temperature,
lasted
long
time,
water
content,
C/N
matter
fell
quickly,
contents
total
phosphorus
potassium
increased,
seed
germination
index
was
significantly
improved.
Improve
effect.
Conclusion:
can
shorten
time
improve
efficiency
quality.
Sustainability,
Год журнала:
2024,
Номер
16(24), С. 11122 - 11122
Опубликована: Дек. 18, 2024
To
evaluate
the
effects
of
type
and
proportion
bulking
agents
on
compost
maturity,
chicken
manure
feedstock
(J)
was
selected
as
main
raw
material
for
aerobic
composting,
wood
chips
(M),
straw
(S),
cornmeal
(Y)
were
used
agents.
The
ratios
to
three
set
at
1:3,
1:1,
3:1,
respectively.
mixture
composed
(M)
in
a
1:1
ratio
exhibited
highest
temperature
(75
°C).
treatment
with
bulking-agent-to-feedstock
3:1
lowest
(52
°C)
longest
high-temperature
period
(about
10
days).
Moreover,
seed
germination
index
(1.32),
while
GI
values
all
treatments
did
not
meet
standard
requirements
(0.4).
predominant
microorganisms
included
Firmicutes,
Bacteroidetes,
Actinobacteria,
Proteobacteria.
total
carbon
transformation-related
microorganism
abundance
MJ31,
SJ31,
YJ31
1.65%,
10.69%,
3%,
Further
analysis
showed
that
bioavailability
strongly
correlated
maturity.
GI,
also
bioavailability.
These
results
can
guide
selection
appropriate
agent
optimal
ratio,
offering
new
direction
optimization
composting
process.
Environmental Technology & Innovation,
Год журнала:
2024,
Номер
35, С. 103737 - 103737
Опубликована: Июнь 27, 2024
Food
waste
requires
pretreatment
before
composting
due
to
its
high
moisture,
oil,
and
salt
content.
Wastewater
from
(FWPW)
has
organic
content
(COD
>
80
g/L)
further
treatment.
The
performance
variations
in
dissolved
matter
(DOM)
an
anaerobic
dynamic
membrane
bioreactor
(AnDMBR)
treating
FWPW
were
investigated
along
with
the
impact
of
loading
rate
(OLR)
system.
results
showed
that,
at
stable
stage,
when
OLR
reaches
6.07
kg
COD
m−3d−1,
average
removal
efficiency
was
95.3
%,
a
methane
production
0.21
L
g−1COD
removed.
effluent
volatile
fatty
acid
concentration
below
560
mg
L−1
primarily
comprised
acetate
propionate.
proportion
DOM
large
(100–500
kDa)
medium
(10–100
molecular
weight
(MW)
mixed
liquor
decreased
by
7.0
5.5
respectively,
whereas
MW
(>
500
14.8
%.
fluorescence
spectra
revealed
only
one
humic-like
peak
samples,
exhibiting
higher
intensity
humification
index
than
influent.
At
shock
loads
system
could
withstand
maximum
11.71
increases
caused
reactor
acidification
failure.
This
study
offers
new
strategies
for
optimal
treatment
holds
promise
guiding
industrial
application
AnDMBRs.
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 14, 2023
Abstract
Objective:
We
used
microbiology
and
molecular
biology
techniques
to
screen
out
high
temperature
low
resistant
saprobiotics
for
compost
prepared
a
compound
fermentation
bacteria
agent
rapidly
ferment
cattle
manure
into
high-quality
organic
fertilizer
in
season.
Methods:
Conventional
composting
high-throughput
were
analyze
the
changes
of
physical
chemical
indexes
biodiversity
process
composting,
from
which
strains
obtained,
solid
composite
bactericides
added
verify
effects
on
composting.
Results:
The
conventional
cycle
took
22
days,
diversity
microflora
increased
first
then
decreased.
Composting
microbial
population
key
factors
success
or
failure
Two
tolerant
6
screened
they
efficient
degrading
starch,
cellulose
protein.
bacterial
successfully
with
adjuvant.
preparation
could
make
rise
quickly
at
temperature,
lasted
long
time,
water
content,
C/N
matter
fell
quickly,
contents
total
phosphorus
potassium
increased,
seed
germination
index
was
significantly
improved.
Improve
effect.
Conclusion:
can
shorten
time
improve
efficiency
quality.
