Hydrochar from Agricultural Waste as a Biobased Support Matrix Enhances the Bacterial Degradation of Diethyl Phthalate
Emanuel Gheorghita Armanu,
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Simone Bertoldi,
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Matthias Schmidt
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et al.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(5), P. 1167 - 1167
Published: March 5, 2025
The
hydrothermal
carbonization
(HTC)
of
biomass
presents
a
sustainable
approach
for
waste
management
and
production
value-added
materials
such
as
hydrochar,
which
holds
promise
an
adsorbent
support
matrix
bacterial
immobilization
applied,
e.g.,
bioremediation
processes
sites
contaminated
with
phthalate
ester
plasticizers
diethyl
(DEP).
In
the
present
study,
hydrochar
was
synthesized
from
vine
shoots
(VSs)
employing
following
parameters
during
HTC
process:
260
°C
30
min
1:10
(w/v)
biomass-to-water
ratio.
resulting
(VSs-HC)
characterized
porosity,
elemental
composition,
structural
properties
using
Scanning
Electron
Microscopy
(SEM),
Energy-Dispersive
X-ray
Spectroscopy
(EDX),
Raman
spectroscopy.
Elemental
analysis
confirmed
presence
key
elements
in
VSs
structure,
essential
char
formation
process.
VSs-HC
exhibited
macroporous
structure
(>0.5
μm),
facilitating
(DEP)
adsorption,
adhesion,
biofilm
formation.
Adsorption
studies
showed
that
achieved
90%
removal
rate
4
mM
DEP
within
first
hour
contact.
Furthermore,
VS-HC
tested
consortium
(Pseudomonas
spp.
Microbacterium
sp.)
known
to
degrade
DEP.
immobilized
on
demonstrated
enhanced
tolerance
toxicity,
degrading
76%
8
24
h,
compared
14%
by
planktonic
cultures.
This
study
highlights
VSs-HC's
potential
cost-effective
material
environmental
bioremediation,
offering
cell
viability,
improved
formation,
efficient
plasticizer
removal.
These
findings
provide
pathway
mitigating
pollution
through
scalable
low-cost
solutions.
Language: Английский
The Potential of Immobilized Bacteria for Pollutant Bioremediation in The Environment: Systematic Review
Yuniar Harvianti,
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Muhammad Rizki
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BIOVALENTIA Biological Research Journal,
Journal Year:
2025,
Volume and Issue:
11(1), P. 67 - 82
Published: April 21, 2025
The
Environmental
pollution
caused
by
industrial
waste
including
oil
spills
have
become
a
global
issue
that
requires
effective
and
environmentally
friendly
solutions.
Bioremediation
used
bacteria
immobilized
has
been
develop
as
promising
method
for
pollutant
degradation,
because
it
can
increase
the
stability
activity
of
microorganism
under
various
condition
in
environment.
This
study
is
systematic
review
to
evaluate
technique
adsorption,
entrapment,
adsorption-embedding,
cross
linking
techniques
effectiveness
hydrocarbon,
crude
oil,
heavy
metals
remediation.
collates
vast
amount
existing
literature
on
myriad
contaminants
treated
using
bacteria.
Based
reviewed
article,
immobilization
such
entrapment
cross-linking
were
frequently
reported
enhance
degradation
performance,
particularly
bioremediation.
consistently
demonstrated
high
across
different
environmental
conditions.
factors,
pH,
concentration
surfactant
availability
an
important
role
success
Although,
this
technology
enhances
bacterial
resilience
biodegradation
efficiency,
challenges
hight
cost
materials
limitations
extreme
environment
application
remain
problem.
optimization
potential
provide
sustainable
solution
bioremediation
Language: Английский