Energy Sources Part A Recovery Utilization and Environmental Effects,
Journal Year:
2024,
Volume and Issue:
47(1), P. 607 - 623
Published: Dec. 22, 2024
The
enrichment
characteristics
of
trace
elements
in
coal
combustion
by-products
and
their
potential
environmental
risks
are
crucial
factors
for
the
resource
utilization
prevention
pollution
resulting
from
burning.
In
this
paper,
various
types
were
collected
four
power
plants.
Furthermore,
inductively
coupled
plasma
mass
spectrometer
an
atomic
fluorescence
used
to
determine
elemental
contents.
As
shown
by
results,
(1)
heavy
metals,
rare
earth
Y
(REY)
plants
higher
than
local
soil
background
values,
except
copper
(Cu)
element.
comparison
averages
world
ashes,
Elements
cadmium
(Cd),
nickel
(Ni),
arsenic
(As),
mercury
(Hg),
lead
(Pb)
thulium
(Tm)
depleted,
Zinc
(Zn),
chromium
(Cr)
slightly
enriched
enriched,
other
normal.
(2)
revealed
geoaccumulation
index
ecological
risk
index,
element
has
a
medium-high
risk,
Hg
Cd
reach
high
K
H
have
risk;
Among
REY,
yttrium
(Y),
(Tm),
lutetium
(Lu)
moderate
risk.
Besides,
is
greater
that
light
elements.
comprehensive
produced
burning
all
moderate.
(3)
Geochemical
study
area
affected
human
activities
such
as
mining
According
differentiation
risks,
they
divided
into
three
groups:
Group
I
(Cr
REY),
II
(Cu,
Pb,
Ni,
Zn),
III
(Hg,
As,
Cd).
Beyond
that,
more
attention
should
be
paid
by-products.
ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(6), P. 5379 - 5394
Published: Feb. 3, 2025
The
physicochemical
properties
of
coal
dust
significantly
affect
its
toxicity
and
suppression
efficiency.
Currently,
lab-crushed
is
commonly
used
for
characterization
instead
the
original
(OCD)
sampled
from
underground
mining
sites.
This
practice
leads
to
an
inaccurate
understanding
properties.
To
address
this
issue,
study
directly
collected
18
OCD
samples
various
sites
characterized
their
properties,
variation
these
parameters
with
rank
were
analyzed.
results
show:
has
a
small
particle
size
(average
26.49
μm),
around
21%
particles
are
under
10
μm.
well-developed
pore
structure,
average
total
volume
8.24
×
10-3
cm3/g
specific
surface
area
m2/g.
have
high
oxidation
degree,
relative
content
oxygen-containing
functional
groups
45.71%.
Between
32
measured
OCD,
moderately
correlates
R
0
6
highly
0.
These
mainly
involve
wettability,
moisture
content,
elemental
composition.
findings
present
valuable
insights
into
accurately
assessing
toxicology
health
risks
in
selecting
efficient
control
technologies
different
mines.
Frontiers in Microbiology,
Journal Year:
2023,
Volume and Issue:
14
Published: Nov. 15, 2023
Heavy
metal
contamination
from
coal
mining
calls
for
advanced
bioremediation,
i.e.,
using
sulfate-reducing
bacteria
(SRB)
technology.
Yet,
the
interaction
of
SRB
with
native
soil
microbiota
during
sequestration,
especially
in
presence
plants,
remains
ambiguous.
In
this
study,
we
assessed
sequestration
capabilities,
ecological
network
interactions,
and
enzymatic
functions
soils
treated
a
predominant
consortium,
mainly
Desulfovibrio
(14
OTUs,
42.15%)
Desulfobulbus
(7
42.27%),
alongside
Acacia
dealbata
(AD)
Pisum
sativum
(PS)
plants.
The
consortium
notably
enhanced
immobilization
metals
such
as
Zn,
Cu,
As,
Pb
soil,
conversion
to
residual
forms
rising
23.47
75.98%.
Plant
inclusion
introduced
variability,
potentially
due
changes
root
exudates
under
stress.
While
AD
flourished,
PS
demonstrated
significant
enhancement
conjunction
SRB,
despite
initial
challenges.
Comprehensive
microbial
analyses
revealed
pivotal
role
influencing
networking,
underpinning
critical
links.
This
interplay
between
plants
not
only
diversity
but
also
enriched
nutrients.
Further,
assessments,
highlighting
enzymes
like
NADH:ubiquinone
reductase
non-specific
serine/threonine
protein
kinase,
reinforced
contribution
energy
metabolism
environmental
resilience
entire
community.
Overall,
research
underscores
potential
SRB-driven
bioremediation
revitalizing
affected
by
mining.
