Process Safety and Environmental Protection,
Journal Year:
2023,
Volume and Issue:
192, P. 546 - 555
Published: March 9, 2023
Sorption
is
here
proposed
as
a
promising
approach
for
metal
pre-concentration
and
recovery
from
wastewater.
A
study
was
carried
out
on
the
simultaneous
sorption
of
Co2+,
Cu2+,
Ni2+
Zn2+
macroalgae,
microalgae
cyanobacteria.
The
effect
pH,
initial
concentration,
competition
time
contact
were
evaluated.
Metal
hampers
at
studied
concentration
ranges.
counterion
(sulfate,
chloride
or
acetate)
did
not
influence
sorption.
brown
algae
Sargassum
sp.
most
sorbent
(qmax
=
0.66
±
0.03
mmol·g−1),
followed
by
Phaeodactylum
tricornutum
0.36
0.02
mmol·g−1)
cyanobacteria
Spirulina
0.216
0.007
mmol·g−1).
All
biomass
samples
showed
preferential
Cu2+.
experimental
kinetic
data
well
described
Ho's
model,
showing
chemisorption
to
be
main
mechanism.
Ion-exchange
Ca2+,
K+
H+
also
played
significant
role
in
After
sorption,
achieved
resorting
incineration.
content
obtained
biochar
4639-fold
higher
when
compared
aqueous
solution
concentration.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 17, 2025
Abstract
Extracellular
polymers
(EPS)
produced
by
microalgae
are
considered
an
important
factor
in
the
process
of
biosorption
environmental
contaminants.
The
study
investigated
impact
mixotrophic
cultivation
unicellular
algae
Chlorella
vulgaris
,
Parachlorella
kessleri
and
Vischeria
magna
on
specific
productivity
yield
total
soluble
EPS
as
well
biochemical
composition
sorption
properties
extracellular
order
to
explore
their
potential
be
used
for
biosorption.
results
showed
that
conditions
enhanced
contributed
changes
monomer
EPS.
Higher
levels
sugars,
reducing
protein,
phenolic
compounds
reduced
content
uronic
acids
were
observed
isolated
conditions.
Rhamnose,
xylose,
mannose,
glucose,
galactose
detected
samples.
FTIR
ICP-OES
applied
characterise
structure
role
Pb(II)
removal.
carboxyl
groups
hydroxyl
played
process.
from
C.
cultures
highest
removal
capacity.
Microorganisms,
Journal Year:
2022,
Volume and Issue:
10(12), P. 2318 - 2318
Published: Nov. 23, 2022
Cyanobacteria
are
blue-green
Gram-negative
and
photosynthetic
bacteria
which
seen
as
one
of
the
most
morphologically
numerous
groups
prokaryotes.
Because
their
ability
to
fix
gaseous
nitrogen
carbon
dioxide
organic
materials,
they
known
play
important
roles
in
universal
nutrient
cycle.
has
emerged
promising
resources
combat
issues
global
warming,
disease
outbreaks,
nutrition
insecurity,
energy
crises
well
persistent
daily
human
population
increases.
possess
significant
levels
macro
micronutrient
substances
facilitate
versatile
popularity
be
utilized
food
protein
supplements
many
countries
such
Asia.
been
employed
a
complementary
dietary
constituent
feed
for
poultry
vitamin
supplement
aquatic
lives.
They
effectively
used
deal
with
tasks
various
fields
biotechnology,
agricultural
(including
aquaculture),
industrial
(food
dairy
products),
environmental
(pollution
control),
biofuel
(bioenergy)
pharmaceutical
biotechnology
(such
antimicrobial,
anti-inflammatory,
immunosuppressant,
anticoagulant
antitumor);
recently,
growing
interest
applying
them
biocatalysts
observed
well.
generate
variety
bioactive
compounds.
However,
potential
applications
cyanobacteria
could
growth
rate
survival
severe
conditions
due
distinct
unique
metabolic
pathways
active
defensive
mechanisms.
In
this
review,
we
elaborated
on
different
areas
biotechnology.
We
also
emphasized
factors
that
impede
implementation
execution
strategies
enhance
effective
applications.
Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
15
Published: Oct. 11, 2024
In
recent
years,
overexplorations
of
ore
and
the
growth
industries
are
prime
factors
in
release
heavy
metals
environments.
As
a
result,
food
crops
water
bodies
contaminated
with
which
may
have
several
adverse
effects
on
health
humans
other
living
species.
These
metalloids,
such
as
Zn,
Cu,
Mn,
Ni,
Cr,
Pb,
Cd,
As,
upset
biochemical
pathways
metabolite
synthesis
organisms
contribute
to
etiology
different
diseases.
Microorganisms
include
bacteria,
archaea,
viruses,
many
unicellular
eukaryotes,
can
span
three
domains
life—Archaea,
Bacteria,
Eukarya—and
some
microorganisms,
cyanobacteria,
shown
high
efficiency
biosorption
rate
metals.
Cyanobacteria
suitable
for
bioremediation
they
grow
environments,
less
negative
impact
surrounding
environment,
relatively
cheaper
manage.
The
structure
cyanobacteria
has
no
extensive
internal-bound
membranes,
so
it
directly
employ
physiological
mechanisms
uptake
from
contamination
sites.
Such
makeups
managing
bioremediating
metal
concentrations
polluted
This
review
aims
explore
potential
metalloids
bodies.
Additionally,
we
identified
prospects
enhancing
effectiveness.
Bionatura journal :,
Journal Year:
2025,
Volume and Issue:
2(1), P. 1 - 21
Published: Jan. 11, 2025
Nostoc
sp.
is
a
cyanobacterium
identified
in
several
localities
of
Ecuador,
and
it
exhibits
significant
potential
the
pharmaceutical,
food,
environmental
sectors,
which
urges
exploration
its
possible
applications
country.
Macrocolonies
were
collected
at
different
seasons,
content
metals,
sulfur,
biochemical
composition
was
analyzed
according
to
altitude
geographic
position.
The
results
showed
that
average
carbohydrate
corresponds
30.34%
dry
biomass,
27.38%
ash,
25.33%
protein,
7.66%
crude
fiber,
0.71%
fat.
Regarding
metals
elements,
found
Aluminum
presented
highest
value
2049.23
mg/kg,
followed
by
1786.74
1364.08
443.12
mg/kg
Fe,
Mg,
S,
respectively,
with
lowest
for
Cu,
Ni,
Pb,
Cd
7.34
5.62
3.99
0.74
mg/kg;
respectively;
following
descending
order:
Al>Fe>Mg>S>Cu>Ni>Pb>Cd
all
sites
sampled
regardless
period
rain
or
drought.
Consequently,
adsorb
these
elements
from
environment
preliminarily
demonstrated,
showing
could
be
used
bioremediation
contaminated
soils
waters
an
essential
bioindicator
pollution.
Keywords:
sp.,
composition,
bioremediation,
sulfur
