Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
317, P. 100191 - 100191
Published: Jan. 1, 2024
This
paper
provides
a
comprehensive
review
of
the
biochemistry,
microbiology,
and
thermodynamic
aspects
propionate
(Pr)
in
anaerobic
digestion
(AD).
Pr
is
key
intermediate
AD,
playing
crucial
role
process
efficiency
due
to
its
unique
thermodynamics,
microbial
interactions,
biochemical
metabolic
pathways.
However,
metabolism
remains
complex
interconnected
process,
making
it
challenging
fully
understand
optimize.
delves
into
intricate
mechanisms
emphasizing
relationship
with
sulfate
sulfate-reducing
bacteria
(SRBs).
explores
pathways
production
consumption,
elucidating
microorganisms
their
interactions.
Furthermore,
investigates
between
syntrophic
propionate-oxidizing
(SPOB/SRB),
examining
impact
on
Pr.
Finally,
thermodynamics
Pr-related
reactions,
gaining
insights
factors
that
influence
metabolism.
By
unraveling
complexities
this
valuable
knowledge
can
be
harnessed
enhance
manipulate
for
various
purposes.
Researchers
use
these
findings
develop
strategies
reducing
accumulation
improving
biogas
production.
Additionally,
gained
recovery
exploited
development
novel
technologies.
Waste Management,
Journal Year:
2025,
Volume and Issue:
194, P. 24 - 35
Published: Jan. 7, 2025
Despite
advances
in
anaerobic
digestion
(AD),
full-scale
implementation
faces
significant
challenges,
particularly
during
the
start-up
phase,
where
inoculum
selection
is
crucial.
This
study
examines
impact
of
choice
on
operational
and
economic
performance
thermophilic
digesters
phase.
Methanogenic
reactors
R3
R4
were
inoculated
with
digested
sludge
(DiS)
diluted
sewage
(DSS),
respectively,
fed
hydrolyzed
source-sorted
organic
fraction
municipal
solid
waste
(SS-OFMSW)
thickened
sludge,
which
processed
R1
R2,
serving
as
acidogenic
reactors.
A
two-stage
AD
configuration
was
employed
to
mitigate
inhibitory
effects
associated
undigested
(DSS).
approach
enabled
establishment
methanogenic
activity
when
system
initiated
DSS.
However,
outperformed
R4,
achieving
49
%
feedstock's
theoretical
methane
potential
compared
15
R4.
Methane
production
volatile
solids
(VS)
processing
costs
18
3
times
higher
than
R3,
respectively.
R3's
superior
attributed
DiS's
diverse
bacterial
community,
over
66
genera
involved
hydrolysis,
fatty
acid
production,
syntrophic
production.
In
contrast,
DSS
dominated
by
Trichococcus
Lactococcus
(75.4
%),
primarily
butyrate
oxidation
lactate
provides
valuable
insights
into
effective
for
digesters.
Biosensors,
Journal Year:
2023,
Volume and Issue:
13(2), P. 221 - 221
Published: Feb. 3, 2023
This
review
focuses
on
the
development
of
microbial
biofuel
cells
to
demonstrate
how
similar
principles
apply
bioelectronic
devices.
The
low
specificity
microorganism-based
amperometric
biosensors
can
be
exploited
in
designing
cells,
enabling
them
consume
a
broader
range
chemical
fuels.
Charge
transfer
efficiency
is
among
most
challenging
and
critical
issues
while
developing
cells.
Nanomaterials
particular
redox
mediators
are
facilitate
charge
between
biomaterials
cell
electrodes.
application
conductive
polymers
(CPs)
improve
CPs
well-suitable
for
immobilization
enzymes,
some
specific
circumstances,
transfer.
Moreover,
biocompatibility
an
important
issue
during
implantable
Therefore,
biocompatibility-related
aspects
conducting
with
microorganisms
discussed
this
review.
Ways
modify
cell-wall/membrane
suitability
design
outlined.
