Oily
wastewaters
pose
significant
environmental
challenges,
requiring
effective
treatment
methods
for
sustainable
development.
This
study
investigates
the
potential
of
combining
filtration,
electrofiltration,
and
backwashing
using
a
ceramic
membrane
oily
water.
A
secondary
mullite
is
synthesized,
demonstrating
favorable
characteristics
such
as
high
permeate
flux
(534
LMH),
biaxial
flexural
strength
(75.21
MPa),
cost-effectiveness.
Experimental
investigations
were
performed
operational
parameters,
resulting
in
selection
pressure
2
bar
cross-flow
velocity
0.727
m/s
to
achieve
desirable
oil
removal
rates.
The
critical
electric
field
intensity
(Ecrit)
determined
experimentally
theoretically,
ranging
from
50
55
V,
guiding
optimal
voltages
electrofiltration.
Electrokinetic
phenomena,
including
electrophoresis,
electroosmosis,
bubble
formation,
are
harnessed
mitigate
fouling.
influence
feed
solution
conductivity
examined,
revealing
that
higher
salt
concentrations
increase
fouling
diminish
effectiveness.
Energy
consumption
analysis
indicates
energy
savings,
with
decrease
3.88
kWh/m³
no-voltage
condition
2.71
at
65
V
salt-free
solutions.
However,
concentrations,
increased
reduced
effectiveness
result
consumption.
findings
underscore
suitability
low-cost
membranes
water
treatment,
emphasizing
importance
optimizing
operating
parameters
enhanced
performance
efficiency.
Catalysts,
Год журнала:
2022,
Номер
12(11), С. 1340 - 1340
Опубликована: Ноя. 2, 2022
Dye
wastewater
due
to
industrialization,
urbanization
and
academic
activities
has
become
one
of
the
most
important
environmental
issues
today.
Photocatalytic
degradation
technology
is
considered
as
a
promising
for
treating
dye
its
advantages
protection
low
energy
consumption.
Herein,
titanium
dioxide–reduced
graphene
oxide
composites
(TiO2-RGO)
were
prepared
by
one-step
hydrothermal
method
degrade
different
dyes
(methyl
orange,
methylene
blue
rhodamine
B)
in
water.
The
structure
morphology
TiO2-RGO
characterized
using
various
technical
approaches.
effect
on
was
accordance
with
first-order
kinetic
reaction.
rate
TiO2-6%RGO
methyl
orange
at
15
min
1.67
times
higher
than
that
TiO2,
strong
electron
transport
ability
excellent
adsorption
properties
graphene.
better
performance
fluorescent
anionic
azo
dyes.
Notably,
photocatalysis
90
could
reach
96.9%.
Meanwhile,
showed
reusability,
initial
93.2%
maintained
after
five
cycles
solution.
present
work
provides
universal
strategy
designing
efficient
photocatalytic
materials.
SPE Production & Operations,
Год журнала:
2022,
Номер
38(01), С. 51 - 62
Опубликована: Авг. 24, 2022
Summary
Produced
water
(PW)
is
the
most
significant
waste
product
in
oil
and
gas
exploitation,
numerous
challenges
are
associated
with
its
treatment.
For
over
half
a
century,
PW
treatment
handling
have
evolved
from
to
reusable
stream
for
petroleum
industry.
reused
recycled
hydrocarbon
recovery
processes,
well
completion,
stimulation,
drilling,
etc.
Despite
this
usage,
enormous
volumes
still
required
be
disposed
of
subsurface
aquifers
or
surface
bodies
after
Challenges
related
mainly
widely
varying
characteristics,
nonuniformity
systems
different
fields,
difficulty
designing
novel
technology
due
changing
production
rates
other
design
parameters.
This
paper
focuses
on
purpose-specific
units
used
various
activities
within
industries
technological
advancement.
A
detailed
account
historical
development
current
practices,
disposal,
available
technology,
implementation
presented.
Forward-looking
recommendations
given
how
emerging
technologies
can
integrated
into
everyday
achieve
goal.
ACS ES&T Water,
Год журнала:
2023,
Номер
3(6), С. 1502 - 1514
Опубликована: Март 1, 2023
The
water
associated
with
oil
and
gas
reservoirs
is
formation
(FW),
which
generated
at
the
surface
during
hydrocarbon
production.
major
challenges
treatment
of
FW
are
higher
contents
grease,
high
salinity,
suspended
solids,
organic
pollutants,
traces
heavy
metals,
undesired
microbes.
To
meet
stringent
requirements
for
usage
disposal
FW,
various
methods
have
been
developed
implemented
in
industries
sustainable
management
from
reservoir.
This
article
aims
to
summarize
aspects
related
like
generation,
available
methods,
prevailing
challenges.
basics
working
principles
individual
described
along
relevant
examples
FW.
In
addition,
combined/hybrid
also
discussed
improve
overall
efficiency.
Hybrid
shown
a
better
performance
than
conventional
techniques
need
be
effective
voluminous
environmental
standards
reuse
discharge.
Environmental Science Processes & Impacts,
Год журнала:
2022,
Номер
24(4), С. 497 - 503
Опубликована: Янв. 1, 2022
New
approaches
to
better
characterize
chemical
contamination
from
hydraulic
fracturing
of
shale
and
other
permeable
rock
formations
for
improved
risk-based
management
are
presented.
E3S Web of Conferences,
Год журнала:
2024,
Номер
503, С. 06006 - 06006
Опубликована: Янв. 1, 2024
Membrane
technology
has
been
widely
applied
in
water
management
systems
for
production,
but
is
still
hindered
by
fouling
phenomena
and
low
selectivity.
Improving
membrane
performance
through
modification,
such
as
the
addition
of
photocatalytic
materials,
explored.
In
this
research,
La@TiO
2
composite
was
incorporated
into
PVDF
membranes
treatment
produced
water.
Lanthanum
doping
on
TiO
effectively
inhibits
carrier
recombination
enhances
activity.
According
to
research
results,
adding
matrix
increased
porosity
value
pore
size.
The
PVDF-La@TiO
1.5%wt
exhibited
highest
flux
values,
specifically
20.59
L.m
-2
.h
-1
40
dark
conditions
visible
light
irradiation.
rejection
rates
COD,
TDS,
ammonia
were
69.89%,
57.77%,
69.65%.
degradation
effect
proven
a
significant
difference
filtration
results
under
vis-light
kinetics
COD
removal
are
better
described
pseudo-first-order
model.
1.5%
pollutant
demonstrated
confirming
its
activity
Overall,
good
proved
be
reusable
after
6
hours
photofiltration.
This
holds
promise
enhancing
use
photocatalytics
