Microorganisms,
Год журнала:
2023,
Номер
11(11), С. 2705 - 2705
Опубликована: Ноя. 4, 2023
Lyophilization
is
a
widely
employed
long-term
preservation
method
in
which
the
bacterial
survival
rate
largely
depends
on
cryoprotectant
used.
Bacillus
cereus
strain
PBC
was
selected
for
its
ability
to
thrive
environments
contaminated
with
arsenic,
lead,
and
cadmium,
tolerate
500
ppm
of
free
cyanide,
presence
genes
such
as
ars,
cad,
ppa,
dap,
among
others,
associated
bioremediation
toxic
compounds
enterotoxins
(nheA,
nheB,
nheC).
Following
lyophilization,
rates
Mannitol
2.5%,
10%,
Glucose
1%
were
98.02%,
97.12%,
96.30%,
respectively,
being
lower
than
95%
other
sugars.
However,
during
storage,
same
sugars,
78.71%,
99.97%,
respectively.
In
cake
morphology,
it
found
that
lyophilized
morphology
showed
no
relationship
rate.
The
best
glucose
since
maintained
constant
elevated
growth
ensuring
unique
characteristics
bacterium
preserved
over
time.
These
findings
hold
significant
implications
research
they
report
new
potential
be
utilized
processes.
Arabian Journal of Chemistry,
Год журнала:
2024,
Номер
17(6), С. 105777 - 105777
Опубликована: Апрель 5, 2024
Soil
contamination
by
lead,
zinc,
iron,
manganese,
and
copper
is
a
widespread
environmental
issue
associated
with
the
mining
industry.
Primary
sources
include
activities,
production
processing
operations,
waste
disposal
management
practices,
atmospheric
sediments.
degradation,
water
pollution
impacting
aquatic
ecosystems,
plant
absorption
leading
to
agricultural
product
contamination,
health
risks
exposure
copper,
along
effects
on
fauna
biodiversity,
constitute
primary
impacts
of
contamination.
In
this
study,
diverse
sampling
analysis
methods,
geographic
information
systems,
remote
sensing
techniques
are
investigated
for
monitoring
assessing
soil
these
metals.
modification
techniques,
phytoremediation,
other
strategies
reduction
considered
among
most
crucial,
alongside
protection
risk
strategies.
Finally,
article
explores
innovative
methods
solutions
mineral
remediation,
application
green
chemistry
sustainable
practices
in
industry,
utilization
artificial
intelligence
controlling
heavy
metal
ion
pollution.
Minerals Engineering,
Год журнала:
2024,
Номер
209, С. 108619 - 108619
Опубликована: Фев. 18, 2024
The
unique
properties
of
zeolites,
such
as
their
microporous
structure
and
ion
exchange
capacity,
make
them
a
promising
material
for
water
treatment
applications.
This
work
explores
the
synthesis
zeolites
from
coal
fly
ash
(CFA)
using
microwave
fusion
hydrothermal
method
investigates
effectiveness
in
removing
heavy
metal
ions,
specifically
Cu2+,
Zn2+,
Ni2+,
Pb2+,
an
aqueous
solution.
Moreover,
to
overcome
challenge
extracting
fine
zeolite
particles
treated
water,
novel
colloidal
PVA
solutions
bind
magnetite
nanoparticles
was
used.
obtained
magnetic
CFA
investigated
its
adsorption
performance
ability
be
extracted
water.
experiments
included
analysis
kinetics
determination
both
capacity
single
mixed
systems.
results
this
study
show
that
synthesized
has
excellent
ions.
Specifically,
system,
maximum
CFA-zeolite
calculated
495
mg/g
248
177
130
Ni2+.
When
tested
with
same
dosage
ions
found
276
Pb2+
95
while
Zn2+
Ni2+
were
not
adsorbed.
Furthermore,
suggest
composite
properties.
Thus,
system
261
mg/g,
109
45
42
respectively;
selectivity
order
>
Cu2+
therefore
established
Additionally,
shown
easily
separated
solution
high
intensity
separation.
Various
surface
characterization
techniques
utilized
examine
zeolite's
before
after
mechanism
studied
metals.
Overall,
further
highlights
potential
CFA-synthesized
removal
pollutants
wastewater
provides
insights
into
mechanisms
underlying
behavior.
it
demonstrated
practical
applications
effective
sustainable
wastewater.
Further
investigations
are
necessary
optimize
use
Journal of Molecular Liquids,
Год журнала:
2024,
Номер
410, С. 125592 - 125592
Опубликована: Июль 20, 2024
Heavy
metals
pose
a
significant
threat
to
ecosystems
and
human
health
because
of
their
toxic
properties
ability
bioaccumulate
in
living
organisms.
Traditional
removal
methods
often
fall
short
terms
cost,
energy
efficiency,
minimizing
secondary
pollutant
generation,
especially
complex
environmental
settings.
In
contrast,
molecular
simulation
offer
promising
solution
by
providing
in-depth
insights
into
atomic
interactions
between
heavy
potential
adsorbents.
This
review
highlights
the
for
removing
types
pollutants
science,
specifically
metals.
These
powerful
tool
predicting
designing
materials
processes
remediation.
We
focus
on
specific
like
lead,
Cadmium,
mercury,
utilizing
cutting-edge
techniques
such
as
Molecular
Dynamics
(MD),
Monte
Carlo
(MC)
simulations,
Quantum
Chemical
Calculations
(QCC),
Artificial
Intelligence
(AI).
By
leveraging
these
methods,
we
aim
develop
highly
efficient
selective
unravelling
underlying
mechanisms,
pave
way
developing
more
technologies.
comprehensive
addresses
critical
gap
scientific
literature,
valuable
researchers
protection
health.
modelling
hold
promise
revolutionizing
prediction
metals,
ultimately
contributing
sustainable
solutions
cleaner
healthier
future.
Biology,
Год журнала:
2022,
Номер
11(9), С. 1306 - 1306
Опубликована: Сен. 2, 2022
It
was
generally
believed
that
coal
sources
are
not
favorable
as
live-in
habitats
for
microorganisms
due
to
their
recalcitrant
chemical
nature
and
negligible
decomposition.
However,
accumulating
evidence
has
revealed
the
presence
of
diverse
microbial
groups
in
environments
significant
metabolic
role
biogeochemical
dynamics
ecosystem
functioning.
The
high
oxygen
content,
organic
fractions,
lignin-like
structures
lower-rank
coals
may
provide
effective
means
attack,
still
representing
a
greatly
unexplored
frontier
microbiology.
Coal
degradation/conversion
technology
by
native
bacterial
fungal
species
great
potential
agricultural
development,
industry
production,
environmental
rehabilitation.
Furthermore,
microalgal
can
offer
sustainable
energy
source
an
excellent
bioremediation
strategy
applicable
spill/seam
waters.
Additionally,
measures
fate
community
would
serve
indicator
restoration
progress
on
post-coal-mining
sites.
This
review
puts
forward
comprehensive
vision
biodegradation
bioprocessing
determining
biotechnological
possible
applications.
Plants,
Год журнала:
2022,
Номер
11(9), С. 1186 - 1186
Опубликована: Апрель 28, 2022
In
tropical
forests
of
southern
Ecuador,
artisanal
gold
mining
releases
heavy
metals
that
become
xenobiotic
with
indefinite
circulation
and
eventual
bioaccumulation.
Restoration
rehabilitation
degraded
sites
represent
a
major
ecological,
technological
economic
issue.
this
study,
we
estimate
the
capacity
two
native
woody
plants
to
accumulate
cadmium
(Cd),
lead
(Pb),
zinc
(Zn)
mercury
(Hg),
goal
developing
effective
strategies
for
phytoremediation
sites.
Individuals
Erato
polymnioides
Miconia
sp.,
as
well
their
rhizospheric
soils,
were
sampled
from
natural
zone
(NZ)
montane
cloud
forest,
used
control,
polluted
(PZ)
subjected
active
mining.
Concentrations
four
analyzed
using
atomic
absorption
spectrophotometry.
Cd,
Zn
Hg
concentrations
higher
in
soils
PZ
than
NZ.
Bioaccumulation
(BCF)
translocation
factors
(TF)
showed
sp.
has
potential
Cd
phytostabilization,
E.
phytoextraction,
both
species
have
phytoextraction.
Despite
low
productivity
these
species,
adaptability
edaphoclimatic
conditions
region
possibility
amendments
increase
biomass
could
compensate
effectiveness
reclaiming
contaminated
by
GEOGRAPHY ENVIRONMENT SUSTAINABILITY,
Год журнала:
2023,
Номер
16(1), С. 181 - 188
Опубликована: Янв. 18, 2023
Heavy
metal
pollution
in
the
soil
environment
is
a
worldwide
environmental
problem
as
it
has
negative
effects
on
both
human
health
and
environment.
Remediation
of
heavy
metal-contaminated
essential
to
improve
quality,
provide
land
resources
for
agricultural
production,
protect
animal
ecological
There
possibility
remediating
these
contaminated
soils
through
use
several
absorbing
plants
Superabsorbent
polymers.
polymers
(SAPs)
are
3D
polymer
networks
having
hydrophilic
nature,
which
can
swell,
absorb
hold
large
amount
water
or
aqueous
solutions
their
network.
This
study
evaluates
effect
superabsorbent
Pb
absorption
capacity
Vetiver
(Vetiveria
zizanioides.L)
that
was
grown
Trai
Cau
iron
ore
dumpsite,
Dong
Hy
district,
Thai
Nguyen
province.
The
experiment
designed
with
five
recipes
three
replicates.
contents
SAP
studied
were
0,
0.6,
0.8,
1.0
g/kg
soil.
Uncontaminated
used
control
treatment.
In
supplemented
recipe
SAP,
showed
better
treatment
efficiency
than
without
adding
After
120
days
planting,
increased
tolerance
Vetiver,
improving
properties.
best
achieved
when
using
content
from
0.8-1.0
