Membranes,
Journal Year:
2024,
Volume and Issue:
14(6), P. 131 - 131
Published: June 5, 2024
Achieving
sustainability
in
life
involves
increasing
efforts
to
recover
resources.
This
research
proposes
the
recovery
of
Zn
from
Milluni
lagoons,
an
important
water
supply
for
Bolivia,
where
high
concentrations
have
been
identified
that
exceed
permitted
limits,
exposing
a
risk
health
and
ecosystems.
The
application
reverse
osmosis
(RO),
operated
with
low
pressures,
is
proposed
as
first
stage
concentration
subsequent
this
metal
through
chemical
precipitation.
aim
was
maintain
separation
efficiency
RO
at
pressures
without
presenting
operational
problems.
As
result,
98.83%
achieved
laboratory-scale
pilot
system.
above
means
potential
large-scale
concentration,
apart
orienting
toward
by
working
reduce
energy
costs
during
its
operation.
study
can
be
used
valuable
reference
advancement
sustainable
technologies
field
treatment
simultaneously
allow
resources
promote
circular
economy.
Finally,
exposes
alternative
regions
heavy
contamination
Bolivia
worldwide.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: April 8, 2024
Abstract
Recently,
hydrogels
have
been
widely
applied
as
draw
agents
in
forward
osmosis
(FO)
desalination.
This
work
aims
to
synthesize
bioartificial
hydrogel
from
a
blend
of
sodium
alginate
(SA)
and
polyvinyl
alcohol
(PVA)
using
epichlorohydrin
(ECH)
crosslinker.
Then
this
prepared
was
agent
with
cellulose
triacetate
membrane
batch
cell.
The
effects
the
PVA
content
polymer
crosslinker
dose
on
hydrogel’s
swelling
capacity
were
investigated
optimize
composition.
Furthermore,
water
flux
reverse
solute
optimum
SA/PVA
evaluated
unit
under
effect
particle
size,
feed
solution
(FS)
temperature,
FS
concentration,
orientation.
Fourier
transform
infrared
spectroscopy
(FTIR),
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD)
compression
strength
tests
used
characterize
hydrogel.
Results
revealed
that
equilibrium
ratio
(%)
5228
achieved
had
25%
crosslinking
0.8.
FO
experiments
maximum
0.845
LMH
achieved,
when
distilled
FS,
average
size
60
µm,
temperature
40
°C.
Microbial Biotechnology,
Journal Year:
2023,
Volume and Issue:
16(6), P. 1091 - 1111
Published: March 7, 2023
There
is
much
human
disadvantage
and
unmet
need
in
the
world,
including
deficits
basic
resources
services
considered
to
be
rights,
such
as
drinking
water,
sanitation
hygiene,
healthy
nutrition,
access
healthcare,
a
clean
environment.
Furthermore,
there
are
substantive
asymmetries
distribution
of
key
among
peoples.
These
can
lead
local
regional
crises
peoples
competing
for
limited
resources,
which,
turn,
become
sources
discontent
conflict.
Such
conflicts
have
potential
escalate
into
wars
even
global
instability.
Ergo:
addition
moral
ethical
imperatives
level
up,
ensure
that
all
essential
living
reduce
inequalities,
nations
self-interest
pursue
with
determination
available
avenues
promote
peace
through
reducing
world.
Microorganisms
pertinent
microbial
technologies
unique
exceptional
abilities
provide,
or
contribute
provision
of,
lacking
many
parts
thereby
address
might
constitute
However,
deployment
this
end
seriously
underexploited.
Here,
we
highlight
some
emerging
demand
greater
consideration
exploitation
endeavours
eliminate
unnecessary
deprivations,
enable
lives
remove
preventable
grounds
competition
over
We
exhort
central
actors:
microbiologists,
funding
agencies
philanthropic
organisations,
politicians
worldwide
international
governmental
non-governmental
engage
-
full
partnership
relevant
stakeholders,
'weaponise'
microbes
fight
resource
asymmetries,
particular
most
vulnerable
populations,
create
humanitarian
conditions
more
conducive
harmony
peace.
World Journal of Advanced Research and Reviews,
Journal Year:
2024,
Volume and Issue:
21(2), P. 1737 - 1749
Published: Feb. 28, 2024
The
burgeoning
global
population
and
industrial
activities
have
significantly
increased
the
generation
of
wastewater
laden
with
nutrients,
posing
severe
environmental
public
health
concerns.
Traditional
treatment
methods
often
fall
short
in
effectively
removing
nutrients
like
nitrogen
phosphorus,
leading
to
eutrophication
water
bodies
endangering
aquatic
ecosystems.
In
response,
emerging
technologies
for
nutrient
removal
gained
traction
recent
years,
offering
innovative
efficient
solutions
mitigate
pollution.
This
comprehensive
review
explores
latest
advancements
technologies,
encompassing
biological,
physical,
chemical
processes.
Biological
methods,
including
activated
sludge,
sequencing
batch
reactors
(SBRs),
membrane
bioreactors
(MBRs),
been
extensively
studied
optimized
removal.
Novel
biofilm-based
systems,
such
as
moving
bed
biofilm
(MBBRs)
integrated
fixed-film
sludge
(IFAS),
demonstrated
enhanced
capabilities
resilience
fluctuations
composition.
Furthermore,
integration
advanced
oxidation
processes
(AOPs)
has
revolutionized
from
wastewater.
AOPs,
ozonation,
ultraviolet
(UV)
irradiation,
photocatalysis,
offer
effective
means
degrade
recalcitrant
organic
pollutants
disrupt
cycles.
Membrane-based
reverse
osmosis
(RO),
nanofiltration
(NF),
forward
(FO),
enable
selective
concentration,
thereby
producing
high-quality
effluent
suitable
reuse
or
discharge
into
sensitive
environments.
Additionally,
delves
strategies,
adsorption,
precipitation,
ion
exchange,
targeted
streams.
Advanced
adsorbents
nanomaterials
exhibit
superior
adsorption
capacities
selectivity
phosphorus
compounds,
paving
way
cost-effective
recovery
resource
recycling.
Moreover,
highlights
importance
process
optimization,
system
integration,
sustainability
development
deployment
technologies.
Life
cycle
assessments
(LCAs)
techno-economic
analyses
provide
valuable
insights
footprint
economic
viability
these
solutions,
guiding
decision-makers
towards
sustainable
management
practices.
conclusion,
synthesis
holds
great
promise
addressing
challenges
pollution
treatment.
Future
research
directions
should
focus
on
scalability,
energy
efficiency,
holistic
approaches
achieving
quality
goals
fostering
a
circular
economy.
International Journal of Environmental Research and Public Health,
Journal Year:
2022,
Volume and Issue:
19(17), P. 10710 - 10710
Published: Aug. 28, 2022
Zinc
ferrite
is
a
type
of
photocatalytic
material
with
high
physicochemical
stability,
narrow
band
gap,
carrier
separation
efficiency,
porosity,
and
paramagnetism,
which
makes
it
easy
to
recover.
Thus,
zinc
widely
used
as
photocatalyst
in
water
treatment.
In
this
paper,
the
preparation
principles
well
advantages
disadvantages
typical
methods
prepare
including
hydrothermal,
co-precipitation,
sol-gel,
other
novel
such
biosynthesis
have
been
summarized.
Modification
elemental
doping,
composite
formation,
morphological
modification
highlighted.
Using
these
methods,
catalytic
activity
toward
degradation
organic
pollutants
has
enhanced.
Biosynthesis
regarded
promising
method
that
uses
biological
materials
instead
chemical
achieve
large-scale
using
low
cost,
energy
efficient,
environmentally
friendly
processes.
Meanwhile,
combination
multiple
techniques
enhance
performance
will
be
an
important
research
trend
future.
ACS ES&T Water,
Journal Year:
2023,
Volume and Issue:
3(9), P. 2835 - 2848
Published: July 26, 2023
The
osmotic
microbial
fuel
cell
(OsMFC)
is
formed
by
combining
forward
osmosis
(FO)
and
cells
(MFC).
Its
excellent
performance
undoubtedly
provided
a
new
research
direction
for
the
application
of
FO
MFCs.
However,
reverse
solute
flux
(RSF)
in
also
follows.
RSF
will
cause
series
negative
effects
such
as
loss
draw
solutions,
decrease
water
flux,
electricity
generation.
Therefore,
inhibition
very
necessary
practical
OsMFCs.
Currently,
there
are
much
related
reviews
on
but
few
studies
To
provide
some
ideas
OsMFCs,
we
focused
three
aspects:
operating
conditions,
membranes.
Existing
have
demonstrated
that
strategies
effective
OsMFC,
including
inhibitory
effect
current
generation,
conventional
inorganic
membrane
materials
orientation,
modified
But
many
more
available.
Using
reference,
pressure-assisted
temperature
control
may
be
feasible
need
to
investigated
further.
In
future,
or
utilization
can
further
improve
reactor
promote
early
Applied Water Science,
Journal Year:
2024,
Volume and Issue:
14(2)
Published: Jan. 12, 2024
Abstract
Recently,
fresh
water
resources
have
been
limited
globally.
Thus,
desalination
has
the
most
recommended
solution
to
overcome
this
issue.
Forward
osmosis
(FO)
is
an
affordable
and
developing
technique.
In
current
study,
a
cutting-edge
green
hydrogel
was
prepared
from
polymer
blend
of
flaxseed
gum
(FG)
sodium
alginate
using
epichlorohydrin
(ECH)
as
crosslinker
polyethylene
glycol
(PEG)
semi-interpenetrating
network
polymer.
The
impact
PEG
incorporation
on
hydrogel’s
response
investigated,
influence
different
mass
contents
FG
ECH
swelling
measurements
studied
optimize
composition
hydrogel.
optimum
characterized
by
Fourier
transform
infrared
spectroscopy,
scanning
electron
microscopy,
X-ray
diffraction
compressive
strength
test.
Furthermore,
behavior
present
examined
draw
agent
in
batch
FO
unit.
flux
reverse
solute
were
measured
at
various
values
average
particle
size
feed
(FS)
temperature
concentration.
optimal
0.3
PEG/polymer
ratio,
12%
FG,
0.95
ECH/polymer
ratio
exhibits
(%)
1800
after
hour
equilibrium
(ESR)
5300.
results
experiments
revealed
that
raising
FS
reducing
concentration
enhance
flux.
