Advances in chemical and materials engineering book series,
Год журнала:
2023,
Номер
unknown, С. 246 - 275
Опубликована: Сен. 25, 2023
Water
scarcity
has
been
exacerbated
in
recent
years
due
to
factors
including
the
expansion
of
industrialization
and
agricultural
activities.
The
contaminants
released
by
industries
into
surrounding
water
bodies
include
toxic
aromatic
molecules,
dyes,
heavy
metals,
which
upon
consumption
pose
a
threat
human
life.
development
treatment
technologies
catalysts
targeting
these
pollutants
thus
emerged
as
critical
area
research
development.
This
chapter
therefore
focuses
on
providing
comprehensive
information
application
metal
oxide
semiconductor
photocatalysis
for
range
industrial
pollutants.
With
focus
mainly
being
titanium
dioxide
(TiO2),
zinc
(ZnO),
tin
(SnO2),
cadmium
(CdO),
tungsten
trioxide
(WO3),
synthesis
modification
methods
enhancement
photocatalytic
efficiencies
materials
is
discussed.
Their
physical,
morphological,
optical
properties
are
compared,
mechanisms
behind
their
activities
reported.
The Science of The Total Environment,
Год журнала:
2023,
Номер
901, С. 165789 - 165789
Опубликована: Июль 25, 2023
The
Colombian
mining
industry
has
witnessed
significant
growth.
Depending
on
the
scale
and
mineral
extracted,
complex
chemical
mixtures
are
generated,
impacting
health
of
occupationally
exposed
populations
communities
near
projects.
Increasing
evidence
suggests
that
chromosomal
instability
(CIN)
is
an
important
link
between
development
certain
diseases
exposure
to
mixtures.
To
better
understand
effects
we
performed
a
biomonitoring
study
407
healthy
individuals
from
four
areas:
three
located
in
municipalities
exploiting
different-scale
systems
reference
area
with
no
activity.
Large,
medium,
small-scale
were
analyzed
Montelibano
(Córdoba),
artisanal
(ASGM)
Nechí
(Antioquia),
closed
system
Aranzazu
(Caldas).
activity
was
established
Montería
(Córdoba).
ICP-MS
measured
multi-elemental
hair,
CIN
evaluated
using
cytokinesis-block
micronucleus
technique
(MNBN).
Exposure
elements
comparable
workers
residents
areas
but
significantly
higher
compared
individuals.
In
Montelibano,
increased
MNBN
frequencies
associated
combined
Se,
Hg,
Mn,
Pb,
Mg.
This
distinct
pattern
differed
other
areas.
Specifically,
Nechí,
Cr,
Ni,
Mg
emerged
as
primary
contributors
elevated
MNBN.
contrast,
combination
Hg
Ni
played
role
increasing
Aranzazu.
Interestingly,
Se
consistently
correlated
across
all
active
Chemical
exhibit
broader
range
zones,
reflecting
characteristics
high-impact
large-scale
area.
research
provides
valuable
insights
into
mixtures,
underscoring
importance
employing
this
approach
risk
assessment
communities,
especially
those
residential
International Journal of Mining Reclamation and Environment,
Год журнала:
2024,
Номер
38(7), С. 534 - 548
Опубликована: Март 16, 2024
In
recent
years,
there
has
been
an
increase
in
environmental
catastrophes
involving
mining
dam
failures.
This
study
assessed
the
potential
risks
of
iron
ore
tailings
riparian
soils
to
human
health
after
worst
collapses
recorded
Brazil:
from
Córrego
do
Feijão
Mine-CFM
and
Fundão.
Chemical
monitoring
data
three-year
time
interval
since
were
used
estimate
risk
indexes
for
trace
elements
such
as
arsenic,
cadmium,
chromium,
mercury,
nickel,
lead,
zinc.
both
case
studies,
adult
group
indicated
a
propensity
development
non-carcinogenic
diseases
through
ingestion,
inhalation
dermal
pathways
all
contaminated
areas.
Overall,
children
showed
exacerbated
sensitivity
possible
cancerous
non-cancerous
effects,
especially
areas
surrounding
dams
Barra
Longa,
São
José
Goiabal,
Novo,
Veneza,
Periquito,
Governador
Valadares,
Tumiritinga,
Conselheiro
Pena,
Honório
Fraga
Linhares
(from
Fundão
dam)
CFM
dam.
These
assessments
demonstrate
that
regions
with
activities,
cumulative
effects
over
are
harmful
expected.
Therefore,
is
need
greater
supervision
by
competent
government
bodies
conservation
practices
enable
recovery
or
mitigation
their
impacts,
ensuring
appropriate
well-being
conditions
local
residents
workers.
Journal of Geography and Cartography,
Год журнала:
2024,
Номер
7(1), С. 6090 - 6090
Опубликована: Июнь 27, 2024
At
present,
states
and
entire
regions
that
possess
significant
reserves
of
sought-after
minerals
have
great
potential
to
maintain
even
improve
their
socio-economic
position
in
the
foreseeable
future.
Since
beginning
2000,
increase
mining
volumes
has
been
more
than
50%;
however,
half
all
extracted
raw
materials
fall
only
five
leading
countries:
China,
USA,
Russian
Federation,
Australia,
India.
This
article
presents
results
analysis
global
structure
mineral
production
by
type
geographic
region.
The
provides
an
in-depth
world’s
companies,
identifying
key
players
industry.
A
comprehensive
overview
each
company’s
performance,
including
financial
indicators
statistics,
is
presented.
main
environmental
risks
as
a
result
continued
scale
identified.
prospects
for
development
sector
are
shown.
study
can
be
used
scientific
community
information
source.
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.
Desalination and Water Treatment,
Год журнала:
2023,
Номер
290, С. 36 - 45
Опубликована: Апрель 1, 2023
In
this
article,
the
boron
removal
efficiency
of
permeate
water
in
a
full-scale
reverse
osmosis
system
was
examined
using
an
AmberLite
TM
PWA-10
boron-selective
resin
(N-methylglucamine
functional
group).The
supplied
with
pre-treated
from
mine
drilling
process.This
test
performed
ion-exchange
laboratory
column;
results
were
not
satisfactory
when
first-pass
water,
obtaining
lower
operation
cycle
(0.45
h)
at
higher
inlet
concentration
(121.000ppm).However,
good
achieved
second-pass
(3.800
ppm).The
showed
average
87.08%
(0.491
ppm)
than
Peruvian
laws
on
drinking
quality
(<1.500
ppm),
and
(41.35h).Regarding
inorganic
parameters
analyzed
test,
level
below
limits
established
by
laws,
making
suitable
for
human
consumption.This
finally
confirms
that
technology
represents
important
alternative
as
polishing
step
reuse
purposes.
Environments,
Год журнала:
2024,
Номер
11(10), С. 223 - 223
Опубликована: Окт. 13, 2024
Mining
activities,
particularly
in
large
excavations
like
the
Bingham
Canyon
Copper
Mine
Utah,
have
been
increasingly
linked
to
respiratory
conditions
due
heavy-metal-enriched
waste
and
dust.
Operating
continuously
since
1906,
contributes
4.4%
of
Salt
Lake
Valley
PM2.5
pollution.
However,
extent
its
contributions
larger-sized
particulate
matter
(PM10)
dust,
soil
water
contamination,
human
health
impacts
is
largely
unknown.
Aerosol
optical
depth
data
from
Sentinel-2
imagery
revealed
discernible
dust
clouds
downwind
mine
smelter
on
non-prevailing-wind
days,
suggesting
potential
heavy
metal
dispersion
this
fugitive
subsequent
deposition
nearby
surface
soils.
Our
analysis
topsoils
across
western
found
mean
arsenic,
copper,
lead,
zinc
concentrations
be
well
above
global
background
concentrations.
Also,
minimum
values
for
arsenic
maximum
lead
were
US
EPA
regional
screening
levels
residential
Thus,
greatest
concern
health.
Elevated
all
metals
most
notable
near
mine,
smelter,
tailings
pond.
study
these
elevated
asthma
outcomes
through
cluster
distance-related
comparison
tests.
Significant
clusters
high
rates
observed
regions
with
topsoil
concentrations,
impacting
both
low-
high-income
neighborhoods.
The
findings
preliminary
suggest
that
recent
construction
especially
lands
reclaimed
former
ponds,
could
contributing
atmospheric
containing
exacerbating
residents.
methods
used
aggregated
outcome
cannot
determine
causal
links
between
contents
outcomes;
they
can
only
point
a
need
further
investigation.
Such
investigation
should
involve
individual-level
control
confounding
factors,
such
as
socioeconomic
status,
access
healthcare,
lifestyle
isolate
effect
exposures
outcomes.
This
focused
source
enrichment
topsoil.
future
research
also
essential
assess
subsoil
parent
materials
local
groundwaters
able
sources
or
contamination
