Water,
Journal Year:
2022,
Volume and Issue:
14(20), P. 3324 - 3324
Published: Oct. 20, 2022
Due
to
their
cost-effectiveness,
low
toxicity,
and
naturally
renewable
properties,
bio-coagulants
for
water
treatment
are
gaining
popularity.
In
this
context,
four
were
tested
ability
in
turbidity
reduction
a
synthetic
bentonite
suspension:
Opuntia
ficus
indica
(OFI)
Moringa
oleifera
(MO)
seeds,
two
well-established
vegetal
materials
the
domain
of
bio-coagulation,
Algerian
Aloe
vera
(AV)
Pinus
halepensis
seeds
(PHS),
both
which
have
received
very
few
or
no
study
wastewater.
A
comparative
was
conducted
with
regard
well-known
inorganic
coagulants,
ferric
chloride
Alum.
Extraction
salts,
pH,
coagulant
dose,
initial
turbidity,
aging
effects
examined.
When
compared
chemical
worked
well,
removing
approximately
100%
at
natural
pH
7.5
using
optimal
doses
1.5,
3,
3.5,
1.5
mL/200
mL
AV,
OFI,
MO,
PHS,
Alum,
FeCl3,
respectively,
broad
range
(2
8),
causing
alteration
treated
water.
Polysaccharides
proteins
involved
inter-particle
bridging
charge
neutralization
may
be
active
coagulation-flocculation
molecules.
The
produced
less
sludge
amount
than
Alum
Ferric
chloride.
This
research
not
only
shows
that
MO
OFI
effective
eliminating
but
it
also
highlights
great
potential
AV
PHS
as
promising
polluted
Water,
Journal Year:
2024,
Volume and Issue:
16(14), P. 1995 - 1995
Published: July 14, 2024
Microbial
flocculants
(MBFs),
a
class
of
eco-friendly
and
biodegradable
biopolymers
produced
by
various
microorganisms,
have
gained
increasing
attention
as
promising
alternatives
to
conventional
chemical
in
wastewater
treatment
pollutant
removal.
This
review
presents
comprehensive
overview
the
current
state
MBF
research,
encompassing
their
diverse
sources
(bacteria,
fungi,
algae),
major
categories
(polysaccharides,
proteins,
glycoproteins),
production
processes,
flocculation
performance
mechanisms.
The
wide-ranging
applications
MBFs
removing
suspended
solids,
heavy
metals,
dyes,
other
pollutants
from
industrial
municipal
are
critically
examined,
highlighting
superior
efficiency,
selectivity,
environmental
compatibility
compared
traditional
flocculants.
Nonetheless,
bioflocculants
face
significant
challenges
including
high
substrate
costs,
low
yields,
intricate
purification
methodologies,
factors
that
impede
scalability.
Moreover,
risk
microbial
contamination
attendant
health
implications
associated
with
use
(MBFs)
necessitate
thorough
evaluation.
To
address
costs
variable
product
quality,
strategies
such
waste
valorization,
strain
improvement,
process
optimization,
biosafety
evaluation
discussed.
development
multifunctional
MBF-based
synergistic
technologies
identified
emerging
trends
for
enhanced
resource
recovery.
Future
research
directions
outlined,
emphasizing
need
in-depth
mechanistic
studies,
advanced
characterization
techniques,
pilot-scale
demonstrations
accelerate
adoption
MBF,
moreover,
integration
novel
partial
nitrification
anammox
process.
is
intended
inspire
guide
further
efforts
aimed
at
unlocking
full
potential
sustainable,
high-performance,
cost-effective
addressing
escalating
management
conservation.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(6), P. e17284 - e17284
Published: June 1, 2023
The
batik
industry
has
been
one
of
the
main
family
businesses
in
most
east-coast
region
Malaysian
peninsula
for
many
years.
However,
appropriate
water
treatment
is
still
a
major
challenge
this
industry.
Stringent
laws
introduced
by
authorities
and
intention
to
protect
environment
are
factors
that
drive
researchers
search
suitable,
appropriate,
affordable
efficient
wastewater.
Treatment
research
on
wastewater
lacking
coagulation-flocculation
using
alum
was
chosen
as
stepping
stone
toward
selection
green
coagulants.
This
study
aimed
determine
best
conditions
flocculation-coagulation
standard
jar
test
method.
Four
were
investigated:
dosage
(0.1-3.5
g/L),
pH
(4-11),
settling
time
(0.5-24
h)
rapid
mixing
rate
(100-300
rpm).
Results
obtained
further
analysed
statistically
SPSS
software
prior
determining
significant
effect
variable
changes.
From
study,
process
found
be
at
1.5
g/L,
8,
4
h
100
rpm.
Chemical
oxygen
demand
(COD),
turbidity,
colour
total
suspended
solids
(TSS)
removed
70.7,
92.2,
88.4
100%,
respectively,
under
these
conditions.
showed
can
treated
chemical
means
alum.
indicates
need
forthcoming
developments
natural-based-coagulant-flocculants
sustainability
Water,
Journal Year:
2024,
Volume and Issue:
16(19), P. 2812 - 2812
Published: Oct. 2, 2024
Biological
treatment
is
currently
a
favorable
option
to
treat
wastewater
due
its
environmentally
friendly
methods
and
minimal
toxic
by-products.
The
majority
of
biological
uses
bacteria
as
agents,
which
are
known
have
excellent
capabilities
for
removing
various
pollutants.
Researchers
extensively
explored
the
use
extracellular
polymeric
substances
(EPSs)
generated
by
in
treatment.
This
review
focuses
on
sources
EPSs,
factors
influencing
their
production,
role
Bacterial
species,
nutrient
availability,
pH,
temperatures,
presence
toxins
were
mentioned
be
EPS
production
Produced
EPSs
may
promote
aggregation,
adsorption,
decolorization,
degradation
highlights
challenges
discovering
new
potential
bacterial
species
complex
extraction
methods,
well
importance
mass
larger-scale
applications.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(9), P. e19857 - e19857
Published: Sept. 1, 2023
Massive
amounts
of
wastewater
are
produced
by
the
textile
industry,
and
this
waste
needs
to
be
appropriately
managed.
Agricultural
wheat
straw
(WS),
a
biosorbent
that
is
both
economically
available
environmentally
acceptable,
was
used
in
work
treat
effluent.
Microbial
treated
modification
approaches
were
utilized
for
WS
study
dye
removal
from
wastewater.
Total
15
different
isolates
screened
degradation
ability
Surat
industrial
The
most
significant
deterioration
seen
PPSUHB3
when
compared
other
isolates.
amount
methylene
blue
examined
using
isolate
due
its
high
efficiency.
Based
on
16s
rDNA
sequencing,
it
predicted
Bacillus
licheniformis,
having
great
capacity
degrade
&
producing
efficient
enzyme.
showed
highest
decolorization
%
MB
during
optimization
with
absorbent
which
verified
FTIR
SEM.
process
parameters
statistically
optimized
central
composite
design
(CCD).
Wheat
particle
sizes
180-250
mm
discovered
possible
adsorbent
colour.
maximum
(55.89%)
obtained
statistical
experimental
at
pH
6.36,
Temperature
44.6
°C,
Bacteria
Concentration
3.04%.
created
model
highly
significant,
according
ANOVA,
found
an
R2
value
0.9812
it.
validation
experiment
revealed
projected
results
strikingly
similar.
bacterial
as
may
remove
contains
colours
low
cost.
