Water,
Journal Year:
2024,
Volume and Issue:
16(16), P. 2305 - 2305
Published: Aug. 16, 2024
With
the
increasing
environmental
impacts
of
human
activities,
problem
polygenic
multipollutants
in
groundwater
has
attracted
attention
researchers.
Identifying
hydrobiogeochemical
characteristics
surface
sewage
that
replenishes
is
crucial
to
addressing
this
problem.
The
input
into
leads
not
only
mechanical
superposition
pollutants
but
also
formation
secondary
pollutant
types.
evolution
influenced
by
aquifer
characteristics,
carbon
sources,
microbial
abundance,
etc.
Therefore,
study
took
a
leakage
point
Northwest
China
as
research
object,
carried
out
controlled
laboratory
experiment
on
impact
discharge
groundwater,
and,
combined
with
long-term
field
monitoring
results,
determined
main
processes
and
their
pollutants.
results
showed
redox
environment
gradient
change
pH
were
identified
most
critical
controlling
factors.
In
oxidative
during
early
stage
vertical
infiltration,
carries
substantial
amount
NH4+,
which
oxidized
form
NO3−.
As
O2
consumed,
reduction
intensifies,
NO3−,
Mn
(IV),
Fe(III)
minerals
are
successively
reduced.
Compared
natural
conditions
rainwater
reaction
rates
intensities
various
reactions
significantly
increase
infiltration.
However,
there
notable
difference
between
NO3−
reduction,
large
CO2
rapidly
generated.
Excessive
dissolves
produce
H+,
promoting
acidic
dissolution
(II)
generation
Mn2+.
Sewage
provides
higher
load,
enhancing
stimulating
activity
dissimilatory
nitrate
ammonium,
exhibits
contribution
reduction.
This
portion
converted
from
NH4+
being
reduced
back
retained
reducing
denitrification’s
capacity
remove
important
implications
for
pollution
management
remediation,
particularly
monitored
attenuation.
