Sustainability,
Journal Year:
2023,
Volume and Issue:
15(16), P. 12527 - 12527
Published: Aug. 17, 2023
We
first
revealed
the
behavior
and
biochemical
mechanism
of
high
iron
attapulgite
(HIAP)
different
dosages
affecting
sewage
sludge
(SS)
composting.
HS/TOC
ratio
increased,
but
HA/TOC
HA/FA
ratios
reduced
with
increase
in
HIAP
dose.
High-dose
promoted
formation
more
HS
by
weak
catalytic
effect
could
bind
FA
than
HA
strong
adsorption
to
inhibit
polymerization
adsorbed
into
HA.
Mixing
SS
subsequent
composting
as
two
consecutive
processes
during
HIAP-amended
significantly
influenced
species
distribution
heavy
metals
(HMs)
Cu,
Zn,
Cr.
Each
process
roughly
contributed
one-half
HMs
passivation.
The
bioavailable
fraction
(BF)
dose
greatly
affected
microbial
community.
Both
1%
5%
treatments
Proteobacteria
Firmicutes,
10%
Actinobacteriota
Bacteroidota.
At
thermophilic
phase,
core
genera,
which
were
correlated
pile
temperature
pH
value.
In
maturity
stage,
genera
basically
similar
closely
HA,
influence
order
was
BF–Cr
>
BF–Cu
BF–Zn
optimal
recommended.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(9), P. 2107 - 2107
Published: Sept. 16, 2024
The
improper
treatment
of
crop
straw
not
only
leads
to
resource
wastage
but
also
adversely
impacts
the
ecological
environment.
However,
application
microorganisms
can
accelerate
decomposition
and
improve
its
utilization.
In
this
study,
cellulose-degrading
microbial
strains
were
isolated
from
naturally
decayed
corn
screened
using
Congo
red
staining,
along
with
assessing
variations
in
carboxymethyl
cellulase
(CMCase)
activity,
filter
paper
enzyme
(FPase)
activity
β-glucosidase
(β-Gase)
as
well
degradation
rate.
eight
strains,
namely
Neurospora
intermedia
isolate
29
(A1),
Streptomyces
FFJC33
(A2),
Gibberella
moniliformis
FKCB-009
(A3),
Fusarium
fujikuroi
EFS3(2)
(A4),
Fujikuroi
FZ04
(A5),
Lysine
bacillus
macroides
strain
LNHL43
(B1),
Bacillus
subtilis
MPF30
(B2)
Paenibacilli
lautus
ALEB-P1
(C),
identified
selected
for
consortium
design
based
on
their
high
activities
CMCase,
FPase
β-Gase.
fungi,
bacteria
actinomycete
combined
without
antagonistic
effects
decomposition.
results
showed
A2B2
combination
had
a
significantly
higher
at
55.44
U/mL
β-Gase
25.73
than
other
two
combinations
(p
<
0.05).
Additionally,
rate
was
40.33%,
which
considerably
that
strains/consortia.
A4B2C
superior
including
CMCase
value
35.03
U/mL,
63.59
26.15
different
those
three
Furthermore,
seven
single
construct
various
consortiums
situ
composting
order
evaluate
potential.
Taken
whole,
composting,
temperature,
moisture
content,
pH,
E4/E6
seed
germination
index,
indicated
consisting
intermediate
29,
EFS3(2),
FZ04,
Lysinibacillus
macrolides,
sphaericus,
Paenibacillus
advantageous
yielded
high-quality
compost.
flora
able
effectively
degrade
straw.
This
study
provides
novel
solution
construction
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(13), P. 10119 - 10119
Published: June 26, 2023
Aerobic
composting
of
conventional
municipal
sludge
has
always
had
the
problems
nitrogen
loss
and
low
humification.
In
this
study,
biolysed
(BS),
polyacrylamids-added
(PS)
Fe
(III)/CaO-added
(FS)
were
used
for
composting,
respectively,
their
effect
on
physical-chemical
parameters,
conversion
humification
during
investigated.
The
results
showed
that
dissolved
organic
matter
(DOM)
concentration
BS
pile
(23.1
±
0.4
g/kg)
was
48.4%
higher
than
PS
(15.5
FS
piles
0.0
in
initial
stage
became
lowest
after
suggesting
degradation
DOM
promoted
pile.
can
also
increase
retention
rate
total
(TN)
(27.8%
0.8%),
(22.7%
1.1%)
(24.6%
0.5%),
which
may
be
due
to
lower
production
ammonia
Compared
with
FS,
provided
more
humic
substance
(HS)
acid
(HA)
HA
contents
compost
products
34.4
1.0,
35.4
0.2
34.0
0.3
mg/g
PS,
treated
piles,
respectively.
Fourier
transform
infrared
excitation-emission
matrix
revealed
aromaticity
stability
HA.
degree
polymerization
(DP)
from
(1.48)
(1.56)
(1.36).
However,
germination
index
(GI)
value
(133.4%
6.0%)
(152.3%
6.2%)
(158.3%
showing
contain
plant
biotoxicity.
Thus,
compared
maturity
compost.
Environmental Technology & Innovation,
Journal Year:
2023,
Volume and Issue:
33, P. 103482 - 103482
Published: Dec. 12, 2023
The
dissolved
black
carbon
(DBC)
derived
from
co-pyrolysis
of
plastic
and
biomass
be
released
into
aquatic
environment.
DBC
was
an
important
photoactive
constituent,
however,
the
photochemical
activity
remains
unclear.
Herein
three
popular
wastes
(polystyrene,
PS;
polylactic
acid,
PLA;
mulch
film,
PMF)
pine
needle
prepared
biochar,
effects
plastics
on
DBC's
photogeneration
ability
reactive
intermediates,
affecting
pollutant
photodegradation,
were
investigated.
In
comparison
to
individual
DBC,
mixed
biochar
had
a
lower
molecular
weight
more
oxygen-containing
groups.
Quantum
yields
singlet
oxygen
(1O2)
triplet
state
(3DBC⁎)
higher,
especially
PMF-DBC
since
its
aromaticity
connected
with
higher
E2/E3
SUVA254
values.
Steady-state
experiment
demonstrated
3DBC⁎
formation
rates
for
than
while
second-order
reaction
rate
constants
2,4,6-trimethylphenol
that
DBC.
Quenching
by
sorbic
acid
distinguish
high/low-energy
triplets
revealed
contributions
low-energy
1O2
generation
decreased
relative
indicating
transformation
reductive
groups
oxidative
groups,
which
supported
phototransformation
kinetics.
positively
linear
correlations
using
twenty
samples.
These
findings
are
helpful
in
understanding
biomass,
environments
adjacent
soil
amended
biochar.
