Civil Engineering Journal,
Journal Year:
2024,
Volume and Issue:
10(2), P. 655 - 667
Published: Feb. 1, 2024
Despite
the
recognized
efficiency
of
natural
coagulants,
their
widespread
adoption
in
water
treatment
industry
remains
low.
Our
study
evaluates
effectiveness
three
coagulants—Moringa
Oleifera,
Yausa
(Abutilon
Insigne
Planch),
and
Breadfruit
(Artocarpus
Altilis)—in
reducing
turbidity
levels
40–50
NTU.
Among
these,
two
are
native
plant
species
potentially
applicable
rural
Colombian
areas,
where
there
evident
disparities
infrastructure.
This
research
contributes
to
development
these
exploring
integration
with
existing
methods,
determining
optimal
concentrations,
efficiencies
removal.
findings
reveal
significant
removal
efficiencies:
88.9%
for
Moringa
83.3%
Yausa,
67.2%
Breadfruit.
These
results
indicate
feasibility
agents
as
sustainable
replacements
traditional
chemical
exhibiting
a
level
alike
that
observed
Oleifera.
However,
challenges
practical
implementation
sustainability,
covering
technical,
environmental,
economic,
social
aspects,
notable
obstacles.
The
aim
this
is
not
only
demonstrate
coagulants
but
also
encourage
broader
acceptance
into
practices
incorporating
unstudied
species,
such
Breadfruit,
furthering
overcome
challenges.
Doi:
10.28991/CEJ-2024-010-02-020
Full
Text:
PDF
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
155, P. 110992 - 110992
Published: Sept. 28, 2023
In
the
recent
decades,
developing
nations
aim
to
industrialize
and
grow
sustainably
often
ignoring
environmental
consequences.
However,
few
empirical
studies
have
looked
at
influence
of
industrialization-driven
economic
transition
on
marine
pollution,
in
particular
post
trade
openness.
This
paper
analyzes
nexus
between
openness,
industrialization,
pollution.
The
study
uses
time
series
data
(1995–2022)
applies
quantile
regression
analyze
impact
openness
industrialization
finding
this
suggested
that
a
significant
positive
Trade
activities
rapid
towards
enforced
large
industrial
inputs
resulting
general,
wastewater
contains
heavy
metals,
organic
compounds,
toxic
chemicals,
causes
pollution
disturb
life
if
not
treated
properly.
Thus,
improper
waste
management
mitigation
leads
Therefore,
implications
strategic
policy
integrates
trade,
is
prime
concern
need
be
address
for
effective
control.
To
minimize
effects
operations,
developed
should
promote
sustainable
practices
stricter
regulations
international
trade.
Catalysis Communications,
Journal Year:
2023,
Volume and Issue:
183, P. 106780 - 106780
Published: Oct. 1, 2023
This
study
explores
efficient
Sicomet
Green
(SG)
dye
degradation
using
Fe(III)/Lig
and
Fe(II)/Lig
complexes
in
modified
photo-Fenton
processes
under
UV,
LED,
sunlight.
Sunlight
irradiation
showed
rapid
kinetics
with
over
70%
efficiency.
Multi-objective
grey
wolf
optimization
achieved
98%
96%
mineralization
yield
without
pH
adjustment.
Inorganic
ions
inhibited
the
process.
A
user-friendly
app
aided
predictions
optimal
parameters
selection,
emphasizing
natural
light
sources
pH-neutral
medium
for
removal
through
photo-Fenton.
Water Emerging Contaminants & Nanoplastics,
Journal Year:
2023,
Volume and Issue:
2(4)
Published: Oct. 28, 2023
Coagulation
is
a
widely
employed
technique
for
removing
suspended
particles
from
water
and
wastewater,
recently,
it
has
gotten
attention
as
popular
method
the
removal
of
microplastics
(MPs).
Studies
on
coagulation-based
MPs
are
still
in
their
infancy,
few
findings
available
about
this
treatment
approach,
its
mechanism,
efficiency.
Given
these
gaps,
study
was
designed
to
comprehensively
investigate
recent
advances
via
coagulation.
The
influence
various
experimental
factors
such
coagulant
type,
dose
coagulant,
pH
solution,
shape
critically
reviewed.
showed
that
optimizing
environmental
conditions
during
coagulation
process
crucial
improving
reducing
energy
costs.
efficiency
depends
optimal
reaction
conditions,
which
may
vary
depending
type
concentration
characteristics
or
wastewater
being
treated.
Optimizing
is,
therefore,
critical
achieving
maximum
More
extensive
research
required
reveal
mechanisms
controlling
floc
density
pollutants
effluent.
Consequently,
current
review
aims
highlight
gaps
challenges
associated
with
techniques
treatment.
Current
advancements
synthesis
chemical
modification
bio-based
coagulants
performance
could
constitute
paradigm
shift
ecosystem
protection
sustainability.
use
eco-friendly
combining
other
suggested
increase
efficacy
viability
method.
This
will
provide
significant
insights
field
researchers,
guiding
future
investigations
contributing
advancement
knowledge.
Case Studies in Chemical and Environmental Engineering,
Journal Year:
2023,
Volume and Issue:
8, P. 100370 - 100370
Published: May 5, 2023
In
the
developing
countries,
coffee
production
has
no
controlled
disposal
of
wastewater
which
high
concentrations
organic
and
inorganic
substances
adversely
affects
water
receiving
bodies.
This
leads
to
many
serious
health
problems
in
nearby
areas
such
as
ears
skin
irradiation,
stomach
pain,
nausea,
respiratory
problems,
freshwater
zone
eutrophication.
this
study,
processing
were
treated
by
selected
natural
coagulant
acanthus
tribe,
aloe
vera
moringa
stenopetala.
The
goal
study
was
optimize
operating
parameters
on
removal
efficiency
nitrate
phosphate
using
response
surface
methodology.
range
pH:
3
11,
coagulation
dose:
0.75–1.75
g,
mixing
rate:
40–120
rpm,
stirring
time:
15–45
minutes.
Coagulation
or
aggregation
process
experimentally
examined
analysis
survey
coagulants
for
(NO3−),
(PO43−).
Design
Expert
(11.1.02)
used
statistically
analyze
experimental
data
ANOVA
corresponding
responses
evaluate
optimal
state
variables.
Parameter
optimization
findings
pH,
dosage,
agitation
rate,
duration
evaluated.
results
analysis,
when
three
mixed,
optimum
conditions
dose,
speed,
time
obtained
from
numerical
system
0.750
8.76,
80.73
19.23
min,
respectively.
mixed
Acanthus
Moringa
NO3−
PO43−
99.12%
99.63%,
respectively
more
effective
blended
form.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(7), P. e27584 - e27584
Published: March 19, 2024
The
growing
problem
of
industrial
pollution
in
developing
countries,
especially
Ethiopia,
has
sparked
serious
issues
about
the
quality
water,
particularly
when
it
comes
to
effluent
from
wet
coffee
processing
industries.
In
response,
this
study
investigates
potential
utilizing
natural
coagulants,
Acanthus
sennii
C.,
Moringa
stenopetala
B.,
and
Aloe
vera
L.,
either
individually
or
combination,
for
treatment
effluent.
Methodologically,
systematically
varies
operational
parameters,
including
coagulant
dose,
pH
levels,
stirring
speed,
time,
evaluate
their
impact
on
coagulation
efficiency.
Experimental
data
undergo
statistical
analysis,
employing
ANOVA,
while
computational
optimization
techniques
are
employed
using
Design
Expert
software
determine
optimal
conditions.
Notably,
blended
form
three
coagulants
emerges
as
promising,
yielding
conditions
0.750
g/L
dosage,
8.76,
agitation
speed
80.73
rpm,
time
19.23
min.
Under
these
optimized
conditions,
achieves
remarkable
removal
efficiencies,
approximately
99.99%
color
98.7%
turbidity.
These
findings
underscore
efficiency
form,
sustainable
wastewater
processing.
Journal of Water Process Engineering,
Journal Year:
2024,
Volume and Issue:
58, P. 104817 - 104817
Published: Jan. 18, 2024
Natural-based
coagulants
have
emerged
as
a
reliable
option
to
implement
more
sustainable
operations
and
management
of
wastewater
treatment
plants.
This
work
aims
at
evaluating
the
use
cationic
nanofibrillated
celluloses
(cNFC)
novel
bio-based
flocculants
treat
domestic
wastewaters
by
most
widely
employed
process
–
coagulation/flocculation.
Two
cNFC
samples
were
prepared
with
different
charge
densities
tested
coagulant/flocculants
using
water
characteristics.
The
effect
cNFCs
was
studied
measuring
residual
turbidity
dissolved
organic
carbon.
aggregation
mechanism
kinetics
flocculation
also
evaluated.
Results
show
that
can
be
used
an
efficient
flocculant
medium
high
DOC
waters
since
they
considerably
reduce
(turbidity
removals
varied
between
66.0
%
85.7
for
tested)
without
increasing
Instead,
removed
carbon
from
(between
22.1
65.5
tested),
which
is
remarkable
finding
step
forward
in
this
knowledge
area.
High
density
charged
revealed
superior
removal
capacity
lower
doses
than
commercial
coagulant
FeCl3.