Energies,
Год журнала:
2024,
Номер
17(5), С. 1033 - 1033
Опубликована: Фев. 22, 2024
The
recovery
of
valuable
resources
from
wastewater
treatment
plants
(WWTPs)
has
received
a
great
deal
attention
as
part
the
concept
circular
economy.
Anaerobic
digestion
for
stabilizing
sewage
sludge
in
WWTPs,
which
produces
biogas
and
stabilized
biosolids,
is
mature
technology
used
worldwide.
However,
despite
necessity
achieving
safe
reliable
organic
recycling,
studies
on
effect
some
emerging
micropollutants
this
process
are
rare.
This
knowledge
gap
growing
relevance
because
increasing
use
endocrine-disrupting
compounds
(EDCs),
microplastics
(MPs),
engineered
nanoparticles
(NPs)
industry
human
life.
These
ubiquitous
streams
and,
therefore,
may
have
serious
effects
course
anaerobic
sludge,
raising
concerns
about
their
environment.
article
provides
comprehensive
overview
mechanisms
by
selected
EDCs,
MPs,
NPs
affect
valorization
with
focus
production
CH4,
H2,
volatile
fatty
acids.
study
takes
into
consideration
performance
during
all
stages
digestion,
shifts
microbial
abundance
diversity,
activity
key
enzymes
process.
Abstract
Residual
antibiotics
in
chicken
manure
may
interfere
with
the
stability
of
anaerobic
digestion
(AD)
and
inhibit
resource
utilization
efficiency.
In
this
study,
we
aimed
to
enhance
bio-methanation
AD
high-concentration
sulfamethazine
(SMZ)
by
adding
metal
(Fe,
Co)-modified
Enteromorpha
-based
hydrochar
(Co-HC,
Fe-HC).
The
results
showed
that
Fe-HC
Co-HC
increased
degree
acidogenesis
1.25
times
1.58
times,
respectively.
maximum
protein
concentration
EPS
was
47.64%
72.5%
after
Co-HC.
However,
only
demonstrated
notable
improvements
both
methane
production
SMZ
removal
Electrochemical
analysis
possessed
a
richer
variety
oxygen
nitrogen
functional
groups,
along
superior
electron
exchange
capabilities
compared
Fe-HC.
Furthermore,
microbiological
assessments
revealed
enriched
syntrophic
bacteria
(such
as
Syntrophomonas
Mesotoga
),
facilitating
direct
interspecies
transfer
(DIET)
subsequently
enhancing
biomethane
production.
abundance
genes
involved
significantly
Co-HC,
increase
75.86%
Co1.5-HC
treatment.
Additionally,
elimination
antibiotic
resistance
(
sul1
,
sul2
)
65.66%
This
study
offers
theoretical
foundation
empirical
support
for
synergistic
improvement
livestock
poultry
containing
high
concentrations,
thereby
helping
overcome
challenges
posed
recalcitrant
substances.
Graphical
Environmental Technology,
Год журнала:
2025,
Номер
unknown, С. 1 - 10
Опубликована: Янв. 8, 2025
The
widespread
existence
of
sulfapyridine
(SPD,
a
typical
representative
sulfonamide)
in
natural
environment
has
raised
increasing
interest
because
its
potential
to
cause
antibiotic-resistant
genes.
In
this
work,
the
degradation
SPD
during
heat-activated
peroxodisulfate
(heat/PDS)
oxidation
process
was
explored.
pseudo-first-order
rate
constant
(kobs)
0.0149
min−1
with
0.5
mM
PDS
at
pH
7.
kobs
values
were
increased
obviously
concentration.
Such
ascribed
sulfate
radical
(SO4•−)
primarily
according
quenching
test.
A
total
16
transformation
products
derived
from
hydroxylation,
aniline
moiety
oxidation,
and
SO2
extrusion
&
rearrangement
pathways
identified
by
high-resolution
mass
spectrometry
(HRMS)
theoretical
calculations.
Of
which,
production
nitrated
byproducts
attributed
molecule.
organic
matter
(NOM)
reduced
efficiency
SPD,
while
effects
coexisting
anions
(i.e.,
NO3−,
CO32−,
Cl−)
negligible.
These
findings
illustrated
that
can
be
effectively
degraded
but
generation
heat/PDS
process,
which
should
paid
attention
when
SR-AOPs
is
applied.
