Hygiene and Sanitation,
Journal Year:
2025,
Volume and Issue:
104(1), P. 17 - 22
Published: Jan. 31, 2025
Introduction.
The
study
of
natural
levels
hydrocarbons
(HCs)
content
in
soils
is
an
urgent
task,
the
solution
which
will
help
to
objectively
assess
level
anthropogenic
contamination
and
timely
limit
processes
extraction,
processing,
transport
petroleum
HCs.
analysis
HCs
background
make
it
possible
reveal
regularities
their
accumulation
Arctic
Subarctic
regions,
taking
into
account
landscape
geochemistry
areas.
Materials
methods.
Representative
samples
main
soil
types
were
selected
using
route
method,
peculiarities
cover
formation
different
landscapes.
concentration
was
determined
hexane
extracts
based
on
fluorescence
intensity.
Results.
studies
have
shown
that
distribution
profiles
are
influenced
by
various
factors
such
as
genesis,
relief,
organic
matter
content,
physical
clay.
highest
concentrations
observed
landscapes
loamy
sediments
(Retisols),
lowest
eluvial
sands
(Podzols).
profile
differentiation
also
more
pronounced
less
so
sandy
soils.
results
obtained
allowed
updating
existing
database
mapping
European
Subarctic.
Limitations.
limitation
related
fact
only
at
a
distance
least
1
km
from
railways
motorways,
5
settlements
10
industrial
plants
sampled.
In
this
paper,
analysed,
without
considering
other
classes
inorganic
compounds.
Conclusion.
data
North-East
Russia
with
respect
landscape-geochemical
been
obtained.
provide
opportunity
HC
organogenic
horizons
be
characterised
high
capacity
act
integral
indicator
aerotechnogenic
load
cover.
Threshold
values
proposed
for
studied
soils,
wide
range
3.4
40
mg/kg
can
used
ecological
hygienic
assessment
latitude
Advances in science and technology,
Journal Year:
2025,
Volume and Issue:
160, P. 321 - 338
Published: Feb. 3, 2025
The
increasing
demand
for
energy
and
the
growing
concern
environment
pollution
have
led
to
exploration
of
sustainable
efficient
methods
wastewater
treatment
coupled
with
recovery.
This
study
was
focusing
on
application
clay
based
(MFC)
microbial
fuel
cell
as
a
novel
approach
treat
petroleum
while
simultaneously
generating
electrical
by
using
microorganisms
extracted
from
diesel
oil-contaminated
soil
collected
old
garage.
In
this
study,
cells
(MFCs)
were
constructed
low
cost
ceramic
cylindrical
pot
(900ml)
an
ion
exchange
membrane.
An
inoculum
derived
soil,
10%
volume
anode
fed
chamber
MFC1,
MFC2
no
inoculation
added
MFC
control.
cathode
filled
1M
potassium
ferricyanide
in
phosphate
buffer
solution
at
ratio
1:1.
All
MFCs
operated
batch
mode
synthetic
containing
(810
ml)
30
days
open
circuit
voltage
external
resistance
10Ω,
100Ω,
1000
Ω
14
closed
voltage.
Carbon
cloth
(projected
surface
area
546cm2and
455.22
cm2)
used
both
respectively.
efficiency
clay-based
evaluated
removal
efficiencies
COD
BOD.
For
BOD
89%,
96%,
maximum
daily
188.92
mV.
demonstrated
91%,
98%,
average
210.35
contrast,
control
displayed
lower
49%,
30%,
58.28
power
density
achieved
9.99µW/cm2
highest
performing
MFC2.These
results
highlights
effectiveness
MFC1
terms
organic
matter
generation
compared
control,
displaying
potential
production.
research
just
laid
foundation
use
recovery,
more
studies
be
carried
out
optimize
maximise
its
efficiency.
Hygiene and Sanitation,
Journal Year:
2025,
Volume and Issue:
104(1), P. 17 - 22
Published: Jan. 31, 2025
Introduction.
The
study
of
natural
levels
hydrocarbons
(HCs)
content
in
soils
is
an
urgent
task,
the
solution
which
will
help
to
objectively
assess
level
anthropogenic
contamination
and
timely
limit
processes
extraction,
processing,
transport
petroleum
HCs.
analysis
HCs
background
make
it
possible
reveal
regularities
their
accumulation
Arctic
Subarctic
regions,
taking
into
account
landscape
geochemistry
areas.
Materials
methods.
Representative
samples
main
soil
types
were
selected
using
route
method,
peculiarities
cover
formation
different
landscapes.
concentration
was
determined
hexane
extracts
based
on
fluorescence
intensity.
Results.
studies
have
shown
that
distribution
profiles
are
influenced
by
various
factors
such
as
genesis,
relief,
organic
matter
content,
physical
clay.
highest
concentrations
observed
landscapes
loamy
sediments
(Retisols),
lowest
eluvial
sands
(Podzols).
profile
differentiation
also
more
pronounced
less
so
sandy
soils.
results
obtained
allowed
updating
existing
database
mapping
European
Subarctic.
Limitations.
limitation
related
fact
only
at
a
distance
least
1
km
from
railways
motorways,
5
settlements
10
industrial
plants
sampled.
In
this
paper,
analysed,
without
considering
other
classes
inorganic
compounds.
Conclusion.
data
North-East
Russia
with
respect
landscape-geochemical
been
obtained.
provide
opportunity
HC
organogenic
horizons
be
characterised
high
capacity
act
integral
indicator
aerotechnogenic
load
cover.
Threshold
values
proposed
for
studied
soils,
wide
range
3.4
40
mg/kg
can
used
ecological
hygienic
assessment
latitude
