Eco-Environment & Health,
Journal Year:
2024,
Volume and Issue:
3(3), P. 271 - 280
Published: Feb. 27, 2024
Freshwater
salinization
is
receiving
increasing
global
attention
due
to
its
profound
influence
on
nitrogen
cycling
in
aquatic
ecosystems
and
the
accessibility
of
water
resources.
However,
a
comprehensive
understanding
changes
river
impacts
salinity
arid
semi-arid
regions
China
currently
lacking.
A
meta-analysis
was
first
conducted
based
previous
investigations
found
an
intensification
that
altered
hydrochemical
characteristics.
To
further
analyze
impact
metabolism
processes,
we
evaluated
rivers
with
long-term
gradients
situ
observations.
The
genes
enzymes
were
inhibited
generally
by
salinity,
especially
those
involved
fixation
nitrification,
showed
low
abundances
three
levels.
abundance
denitrification
dissimilatory
nitrate
reduction
ammonium
functions
still
maintained
high
proportion,
for
genes/enzymes
enriched
under
medium
salinity.
Denitrifying
bacteria
exhibited
various
relationships
while
bacterium
(such
as
Frontiers in Environmental Science,
Journal Year:
2024,
Volume and Issue:
12
Published: Sept. 2, 2024
The
management
of
landfill
leachate
presents
a
significant
environmental
challenge,
necessitating
comprehensive
and
dynamic
treatment
approach.
This
review
delves
into
the
critical
issue
treatment,
exploring
its
impact,
technologies,
regulatory
frameworks,
path
towards
sustainable
practices.
explores
complexities
leachate,
emphasizing
need
for
waste
practices
to
safeguard
health.
Our
analysis
highlights
evolution
conventional
advanced
technologies
designed
mitigate
these
risks,
focusing
on
membrane
oxidation
processes,
promising
potential
emerging
techniques
such
as
adsorption
biological
nutrient
removal.
These
are
evaluated
their
efficiency,
cost
implications,
sustainability
impacts,
underscoring
challenges
opportunities
within
current
landscape
treatment.
aims
provide
insights
designing
efficient
effective
systems
through
detailed
methods.
By
examining
case
study
in
Changsha
City,
effectiveness
system
integrating
various
is
demonstrated.
underscores
interconnectedness
human
activities,
health,
management,
importance
holistic
It
stresses
continuous
improvement
adoption
reduce
footprint
landfills.
Ultimately,
it
calls
multiple
economic
considerations,
readiness
address
future
contributing
advancement
International Journal of Phytoremediation,
Journal Year:
2024,
Volume and Issue:
26(9), P. 1392 - 1409
Published: March 5, 2024
Industries
generate
hazardous
dye
wastewater,
posing
significant
threats
to
public
health
and
the
environment.
Removing
dyes
before
discharge
is
crucial.
The
ongoing
study
primarily
focused
on
synthesizing,
applying,
understanding
mechanism
of
green
nano-biochar
composites.
These
composites,
including
zinc
oxide/biochar,
copper
magnesium
manganese
are
designed
effectively
remove
Actas
Pink-2B
(Direct
Red-31)
in
conjunction
with
constructed
wetlands.
Constructed
wetland
maintained
pH
6.0–7.9.
At
10th
week,
oxide/biochar
treatment
demonstrated
highest
removal
efficiency
total
suspended
solids
(72%),
dissolved
oxygen
(7.2
mg/L),
(79.90%),
followed
by
other
biochar
maximum
for
chemical
demand
(COD)
color
was
observed
at
a
retention
time
60
days.
electrical
conductivity
also
same
order,
decrease
up
8th
week
becoming
constant.
A
comprehensive
statistical
analysis
conducted,
encompassing
various
techniques
variance
analysis,
regression
correlation
principal
component
analysis.
rate
COD
second-order
first-order
kinetics,
respectively.
negative
relationship
between
COD.
indicates
that
employing
composites
wetlands
improves
textile
efficiency.
