Space Science & Technology,
Journal Year:
2024,
Volume and Issue:
4
Published: Jan. 1, 2024
During
space
missions,
various
waste
products
are
produced.
Recyclable
can
be
treated
by
aerobic
composting
to
achieve
in
situ
recycling.
Considering
the
limited
logistics
supply
Controlled
Ecological
Life
Support
System
(CELSS),
recycling
should
reduce
energy
consumption
and
material
carrying
pressure,
increase
efficiency,
improve
quality
of
daily
life
astronauts.
However,
current
technology
often
has
polluting
gas
emissions
case
oxygen
(O
2
)
consumption.
Therefore,
this
review
aims
distill
available
information
about
aerospace
mission
production
its
treatment
methods,
analyze
influencing
factors
composting,
summarize
optimal
O
demand
biomass
waste.
It
also
define
each
stage
organic
order
a
low
for
extraterrestrial
planet
base.
The
main
recyclable
wastes
(feces,
food
residue,
non-edible
parts
plants
or
crops)
generated
CELSS
expected
0.13
kg,
0.31
2.12
kg/person/day,
which
requires
0.173
0.692
kg
normal
process.
Due
change
degradation
rate
at
different
stages,
is
different.
In
detail,
stages
varying
requirements
heating
period:
0.022
0.032
L
.
−1.
dry
matter
(DM)
min
−1
,
thermophilic
0.027
0.05
DM
cooling
0.006
0.02
compost
could
0.153
Adequate
according
these
potential
pollutant
emission.
Environmental Technology & Innovation,
Journal Year:
2023,
Volume and Issue:
29, P. 102997 - 102997
Published: Jan. 5, 2023
Currently,
the
increasing
output
of
kitchen
waste
makes
its
treatment
an
urgent
problem
to
be
solved.
Based
on
principle
resource
utilization,
we
consider
improving
various
process
parameters,
including
aeration
rate,
mode
and
turning
frequency,
analyzing
physicochemical
indicators,
maturity
indicators
gas
emissions,
propose
comprehensive
parameters
that
can
quickly
compost,
promote
reduce
emissions.
The
results
showed
high
rate
(>
0.3
L
kg
−1
DM
min
−1)
reduced
temperature
matrix
increased
electrical
conductivity
germination
index
thereby
inducing
strong
emissions
odors
greenhouse
gases.
Compared
with
continuous
aeration,
intermittent
was
more
effective
in
reducing
gaseous
under
same
total
volume
but
characterized
by
lower
maturity.
Moreover,
it
found
non-turning
substantially,
while
excessively
(once
every
2
days)
or
too
low
6
frequency
varying
degrees.
Most
frequencies
did
not
significantly
compost
above
indicated
rapid
composting
processes
yielded
best
were
0.2∼0.3
−1,
pattern,
a
once
three
days.
This
research
great
significance
improvement
combined
process.
Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
14
Published: Jan. 10, 2024
Introduction
This
study
examines
the
optimum
conversion
of
Wuzhishan
pig
manure
by
Black
Soldier
Fly
Larvae
(BSFL)
at
various
phases
development,
as
well
impact
gut
microbiota
on
efficiency.
Method
and
results
In
terms
efficiency,
BSFL
outperformed
growing
stage
(GP)
group,
with
significantly
higher
survival
rates
(96.75%),
fresh
weight
(0.23
g),
larval
rate
(19.96%)
compared
to
other
groups.
Notably,
GP
group
showed
significant
dry
matter
reductions
(43.27%)
improved
feed
(2.17).
Nutritional
composition
varied,
having
a
lower
organic
carbon
content.
High
throughput
16S
rRNA
sequencing
revealed
unique
profiles,
exhibiting
an
excess
Lactobacillus
Clostridium
.
Promising
cellulose-degrading
bacteria
in
intestines,
including
Bacillus
cereus
subtilis
,
superior
cellulose
degradation
capabilities.
The
synergy
these
thermophilic
greatly
increased
BSFL1-10
demonstrated
high
growth
efficiency
under
specific
conditions,
remarkable
moisture
content
(71.11%),
residual
(63.20%),
waste
reduction
(42.28%).
Discussion
sheds
light
optimal
stages
for
manure,
dynamics,
promising
bacteria,
enhancement
through
synergistic
interactions.
These
findings
hold
great
potential
sustainable
management
efficient
biomass
conversion,
contributing
environmental
preservation
resource
recovery.
International Journal of Environmental Research and Public Health,
Journal Year:
2023,
Volume and Issue:
20(4), P. 3587 - 3587
Published: Feb. 17, 2023
Composting
is
a
promising
technology
for
treating
organic
solid
waste.
However,
greenhouse
gases
(methane
and
nitrous
oxide)
odor
emissions
(ammonia,
hydrogen
sulfide,
etc.)
during
composting
are
practically
unavoidable,
leading
to
severe
environmental
problems
poor
final
compost
products.
The
optimization
of
conditions
the
application
additives
have
been
considered
mitigate
these
problems,
but
comprehensive
analysis
influence
methods
on
gaseous
lacking.
Thus,
this
review
summarizes
different
emissions,
cost
each
measure
approximately
evaluated.
Aerobic
can
be
achieved
by
appropriate
process
conditions,
so
contents
CH4
N2O
subsequently
effectively
reduced.
Physical
effective
regulators
control
anaerobic
having
large
specific
surface
area
great
adsorption
performance.
Chemical
significantly
reduce
their
side
effects
must
eliminated.
auxiliary
effect
microbial
agents
not
absolute,
closely
related
dosage
compost.
Compound
more
efficiently
than
single
additives.
further
study
required
assess
economic
viability
promote
large-scale
utilization
composting.
