Molecules,
Год журнала:
2024,
Номер
29(13), С. 3217 - 3217
Опубликована: Июль 6, 2024
The
progressive
decline
of
the
coal
industry
necessitates
development
effective
treatment
solutions
for
acid
mine
drainage
(AMD),
which
is
characterized
by
high
acidity
and
elevated
concentrations
heavy
metals.
This
study
proposes
an
innovative
approach
leveraging
sulfate-reducing
bacteria
(SRB)
acclimated
to
contaminated
anaerobic
environments.
research
focused
on
elucidating
physiological
characteristics
optimal
growth
conditions
SRB,
particularly
in
relation
pH
level
temperature.
experimental
findings
reveal
that
SRB
exhibited
a
sulfate
removal
rate
88.86%
at
temperature
30
°C.
Additionally,
gel
particles
were
formulated
using
sodium
alginate
(SA)
carboxymethyl
cellulose
(CMC),
their
performance
was
assessed
under
specific
(pH
=
6,
C/S
1.5,
T
°C,
CMC
4.5%,
BSNa
0.4
mol/L,
cross-linking
time
9
h).
Under
these
conditions,
demonstrated
enhanced
efficiency
91.6%.
Thermal
analysis
via
differential
scanning
calorimetry
(DSC)
thermogravimetric
(TGA)
provided
further
insights
into
stability
properties
spheres.
underscore
potential
SRB-based
bioremediation
as
sustainable
efficient
method
AMD
treatment,
offering
novel
environmentally
friendly
solution
mitigating
adverse
effects
environmental
contamination.
Bioresource Technology,
Год журнала:
2023,
Номер
385, С. 129431 - 129431
Опубликована: Июль 1, 2023
Anaerobic
digestion
(AD)
is
promising
for
treating
high-strength
wastewater.
However,
the
effect
of
operational
parameters
on
microbial
communities
AD
with
sulfate
not
yet
fully
understood.
To
explore
this,
four
reactors
were
operated
under
rapid-
and
slow-filling
modes
different
organic
carbons.
Reactors
in
rapid-filling
mode
generally
exhibited
a
fast
kinetic
property.
For
example,
degradation
ethanol
was
4.6
times
faster
ASBRER
than
ASBRES,
acetate
11.2
ASBRAR
ASBRAS.
Nevertheless,
could
mitigate
propionate
accumulation
when
using
as
carbon.
Taxonomic
functional
analysis
further
supported
that
suitable
growth
r-strategists
(e.g.,
Desulfomicrobium)
K-strategists
Geobacter),
respectively.
Overall,
this
study
provides
valuable
insights
into
interactions
processes
through
application
r/K
selection
theory.
Land Degradation and Development,
Год журнала:
2023,
Номер
35(4), С. 1261 - 1283
Опубликована: Ноя. 30, 2023
Abstract
Mercury
(Hg)
pollution
of
soil
and
water
environments
is
a
major
global
threat
to
human
health,
agri‐food
systems
ecosystems
industrial
activities
mainly
coal
combustion
augmented
their
content
in
different
environmental
media.
Bioremediation
nature‐based
solution
involving
microbial‐
plant‐based
(phytoremediation)
technologies
that
clean‐up
Hg
contaminated
sites.
Here,
we
review
Hg‐resistant
bacteria
how
latest
insights
our
understanding
the
cellular
biochemical
mechanisms
mer
operon
genes
responsible
for
resistance
transformation
have
facilitated
developments
microbial
Hg‐bioremediation.
We
also
phytoremediation
mechanisms,
including
those
bacterial‐
fungi‐assisted
processes,
which
shown
promising
results
reducing
2+
0
.
This
provides
detailed
knowledge
novel
bioremediation
methods.
Consequently,
phyto‐based
critical
role
reclamation
Hg‐contaminated
protection
health
ecosystems.
