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
Journal of Human Earth and Future,
Journal Year:
2023,
Volume and Issue:
4(3), P. 290 - 302
Published: Sept. 1, 2023
In
this
work,
we
have
analyzed
the
presence
of
pharmaceutical
compounds
in
wastewater
a
regional
hospital
Vlora,
Albania,
during
June
2020
and
2021.
For
analysis,
measured
concentration
19
preselected
molecules
discharging
water
by
direct
sampling
waters,
investigated
pharmaceuticals
algae
Ulva
Lactuca.
Chemical
analysis
has
been
conducted
via
liquid
chromatography
tandem
with
mass
spectrometry
at
limit
quantization
0.1
ng/L.
It
resulted
that,
from
ensemble
consisting
antibiotics,
analgesics,
psychiatric
drugs,
beta-blockers,
antibiotics
were
found
highest
concentration.
The
quantity
medical
chemicals’
varies
0.2
to
0.24
mg/L.
Traces
are
obtained
Lactucaalgae
effluent
next
city
treatment
plant.
for
each
considered
work
remains
below
Finally,
values
physicochemical
parameters
within
range
reported
several
studies
influent
collected
different
countries
many
years.
Doi:
10.28991/HEF-2023-04-03-03
Full
Text:
PDF
Water,
Journal Year:
2024,
Volume and Issue:
16(2), P. 260 - 260
Published: Jan. 11, 2024
Pine
cones
are
a
widely
available
and
abundant
natural
resource
in
Algeria,
they
rich
active
molecules.
This
study
investigated
the
valorization
of
as
bio-coagulant
raw
form
(powder)
extract
form.
The
components
were
extracted
using
two
solvents,
distilled
water
(DW)
NaCl,
to
obtain
coagulants
(proteins,
polyphenols,
carbohydrates)
for
treatment
improvement
industrial
quality
parameters
(discharge
from
processing
plant
tomato
production)
an
adsorbent
(residue
extract,
RE).
recovered
was
used
remove
turbidity,
chemical
oxygen
demand
(COD),
zeta
potential.
formed
crystal
violet
(CV).
Coagulation-flocculation
experiments
carried
out
jar
test
evaluate
performance
coagulant
powder
use
pine
cone
(PCP),
NaCl
(PC-NaCl),
DW
(PC-DW)
resulted
turbidity
reductions
96%,
94%,
98%,
respectively.
For
residue
after
extraction,
CV
removal
percentage
99.9%
achieved
at
optimal
conditions
pH
10,
concentration
20
mg/L,
dose
contact
time
120
min,
determined
Box–Behnken
design
(BBD).
Furthermore,
all
effects
significant
process
phase
adsorption
on
bio-adsorbent.
model
designed
fit
experimental
data
well,
with
coefficient
determination,
R2,
0.965
Adj-R2
0.926.
p-value
this
0.000,
which
indicated
that
very
significant.
confirmed
effectiveness
bio-adsorbent
removing
dyes
water.
Toxicology Reports,
Journal Year:
2024,
Volume and Issue:
12, P. 404 - 413
Published: March 26, 2024
The
disposal
of
polymer
post-treatment
sludge
(PTS)
from
Barekese
Water
Treatment
Plants
(WTPs)
as
organic
fertilizer
and
aquatic
feed
is
a
common
practice
in
Ghana,
necessitating
thorough
evaluation
its
ecological
human
health
risks.
This
study
aims
to
assess
the
suitability
PTS
samples
for
soil
amendment
fish
feed,
scrutinizing
potential
hazards
consumer
soil.
were
collected
five
distinct
lateral
sections
three
clariflocculator
tanks.
Potentially
toxic
metals
such
Cd,
Zn,
Pb,
Cu,
Ni,
Cr
determined
using
flame
atomic
absorption
spectrophotometer.
mean
concentration
7.82
±
2.43,
0.31
0.021,
0.78
0.042
mg/kg
Mn,
Pb
respectively.
concentrations
Cr,
Cd
below
their
detection
limits
(BDL)
all
samples.
Upon
detailed
exposure
assessment,
ingestion
emerged
primary
route
both
adults
children,
with
non-cancer
risks
(NCR)
be
1
age
groups.
Additionally,
an
exploration
cancer
(CR)
associated
heavy
metal
revealed
values
tolerable
intake
levels
ranging
10-4
10-6
children
(10-8
10-9,
respectively).
also
employs
various
indices,
Nemerow's
synthetic
pollution
index
(PN),
single
factor
(PI),
geo-accumulation
(Igeo),
contamination
(CF),
risk
(PERI),
load
(PLI),
polymetallic
contaminant
(IPD),
(ERI).
These
indices
consistently
highlight
low
status
sensitivity.
Consequently,
indicates
that
presence
does
not
pose
significant
threat
surrounding
environment
health.
Furthermore,
this
research
underscores
inadequacy
relying
solely
on
regulatory
limit
assessing
waste
materials.
Such
comprehensive
assessments
are
crucial
safeguarding
populations.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(23), P. e40370 - e40370
Published: Nov. 15, 2024
The
incidence
of
water
pollution
in
developing
countries
is
high
due
to
the
lack
regulatory
policies
and
laws
that
protect
bodies
from
anthropogenic
activities
industrial
wastewater.
Industrial
wastewater
contains
significant
amounts
heavy
metals
are
detrimental
human
health,
aquatic
organisms,
ecosystem.
focus
this
review
was
evaluate
sources
treatment
methods
wastewater,
with
an
emphasis
on
technologies,
advantages,
disadvantages,
innovation.
It
observed
conventional
(such
as
flotation,
coagulation/flocculation,
adsorption)
had
shown
promising
results
but
posed
certain
limitations,
such
generation
volumes
sludge,
relatively
low
removal
rates,
inefficiency
treating
metal
concentrations,
sensitivity
varying
pH.
Recent
technologies
like
nanotechnology,
photocatalysis,
electrochemical
coagulation
have
advantages
over
for
removing
metals,
including
higher
improved
energy
efficiency,
greater
selectivity
specific
contaminants.
However,
costs
associated
these
advanced
remain
a
major
drawback.
Therefore,
we
recommend
future
developments
technology
reducing
both
waste
generation.
