Biotechnology for Biofuels and Bioproducts,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: June 21, 2024
Hybrid
thermochemical-biological
processes
have
the
potential
to
enhance
carbon
and
energy
recovery
from
organic
waste.
This
work
aimed
assess
of
multifunctional
simultaneously
sequestrate
syngas
detoxify
pyrolysis
aqueous
condensate
(PAC)
for
short-chain
carboxylates
production.
To
evaluate
relevant
process
parameters
mixed
culture
co-fermentation
PAC,
two
identical
reactors
were
run
under
mesophilic
(37
°C)
thermophilic
(55
conditions
at
increasing
PAC
loading
rates.
Both
recovered
least
50%
in
into
carboxylates.
During
co-fermentation,
methanogenesis
was
completely
inhibited
while
acetate,
ethanol
butyrate
primary
metabolites.
Over
90%
amplicon
sequencing
variants
based
on
16S
rRNA
assigned
Clostridium
sensu
stricto
12.
process,
other
hand,
Symbiobacteriales,
Syntrophaceticus,
Thermoanaerobacterium,
Methanothermobacter
Methanosarcina
likely
played
crucial
roles
aromatics
degradation
methanogenesis,
respectively,
Moorella
thermoacetica
marburgensis
predominant
carboxydotrophs
process.
High
biomass
concentrations
necessary
maintain
stable
operations
high
loads.
In
a
second-stage
reactor,
Aspergillus
oryzae
converted
propionate
first
stage
L-malate,
confirming
successful
detoxification
below
inhibitory
levels.
The
highest
L-malate
yield
0.26
±
2.2
mol
Environmental Quality Management,
Journal Year:
2022,
Volume and Issue:
32(2), P. 161 - 176
Published: Nov. 16, 2022
Abstract
The
rapid
growth
and
development
of
industrial
sectors
releases
massive
amounts
phenolic
contaminants
into
the
aquatic
environment.
Bioremediation
is
a
long‐term
cost‐effective
way
removing
from
success
bioremediation
depends
heavily
on
biomass
growth,
enzymatic
activities
microbial
communities,
their
interactions,
other
cellular
metabolic
related
to
degradation.
Thus,
current
review
paper
focuses
evaluating
remediation
as
well
many
challenges
that
come
with
it,
special
reference
to:
(i)
uses,
occurrence
pollutants,
contamination
levels;
(ii)
factors
affecting
biodegradation
such
effect
temperature,
pH,
agitation
speed,
carbon
sources,
inoculum
size,
age.
nutritional
requirements
for
improved
contaminated
environments
were
also
highlighted,
particular
emphasis
role
culture
medium
components
various
redox
mediators
in
compound
removal.
efficiency
has
been
compared
number
previously
described
advanced
oxidation
processes.
Fermentation,
Journal Year:
2023,
Volume and Issue:
9(4), P. 387 - 387
Published: April 17, 2023
Phenolic
compounds,
which
are
difficultly
degraded,
one
of
the
main
toxic
threats
faced
in
anaerobic
digestion
(AD)
process.
It
has
previously
been
reported
that
hydrochar/pyrochar
produced
by
hydrothermal
liquefaction/pyrolysis
biomass
can
enhance
AD
promoting
direct
interspecific
electron
transfer
(DIET).
The
present
study
investigated
effects
different
hydrochars
and
pyrochars
on
degradation
phenol
provided
deep
insights
into
related
micro-organisms
at
species
level
through
genome-centric
metagenomic
analysis.
Compared
with
control
experiment,
addition
hydrochar
pyrochar
shortened
lag
time.
However,
created
a
large
increase
maximum
methane
production
rate
(Rm)
(79.1%)
compared
to
experiments,
while
decreased
Rm.
Metagenomic
analysis
showed
carbon
materials
affected
relative
abundance
genes
pathway,
as
well
degrading
micro-organisms.
key
for
degradation,
such
bsdB,
bamB,
oah,
etc.,
under
action
was
higher
than
those
pyrochar.
In
addition,
hydrochar-enriched
degradation-related
bacteria
(Syntrophus
aciditrophicus,
etc.)
methanogen
(Methanothrix
soehngenii,
etc.).
These
might
improve
efficiency
DIET.
Therefore,
had
more
significant
effect
phenol.
Biotechnology for Biofuels and Bioproducts,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: June 21, 2024
Hybrid
thermochemical-biological
processes
have
the
potential
to
enhance
carbon
and
energy
recovery
from
organic
waste.
This
work
aimed
assess
of
multifunctional
simultaneously
sequestrate
syngas
detoxify
pyrolysis
aqueous
condensate
(PAC)
for
short-chain
carboxylates
production.
To
evaluate
relevant
process
parameters
mixed
culture
co-fermentation
PAC,
two
identical
reactors
were
run
under
mesophilic
(37
°C)
thermophilic
(55
conditions
at
increasing
PAC
loading
rates.
Both
recovered
least
50%
in
into
carboxylates.
During
co-fermentation,
methanogenesis
was
completely
inhibited
while
acetate,
ethanol
butyrate
primary
metabolites.
Over
90%
amplicon
sequencing
variants
based
on
16S
rRNA
assigned
Clostridium
sensu
stricto
12.
process,
other
hand,
Symbiobacteriales,
Syntrophaceticus,
Thermoanaerobacterium,
Methanothermobacter
Methanosarcina
likely
played
crucial
roles
aromatics
degradation
methanogenesis,
respectively,
Moorella
thermoacetica
marburgensis
predominant
carboxydotrophs
process.
High
biomass
concentrations
necessary
maintain
stable
operations
high
loads.
In
a
second-stage
reactor,
Aspergillus
oryzae
converted
propionate
first
stage
L-malate,
confirming
successful
detoxification
below
inhibitory
levels.
The
highest
L-malate
yield
0.26
±
2.2
mol
