Materials,
Journal Year:
2023,
Volume and Issue:
16(9), P. 3385 - 3385
Published: April 26, 2023
The
present
work
describes
the
potential
application
of
environmentally
friendly
sodium
carboxymethylcellulose/gelatin
(CMC/Gel)
semi-interpenetrating
hydrogels
prepared
by
citric
acid
as
a
nontoxic
cross-linking
agent
to
adsorb
dyes.
were
characterized
X-ray
diffraction
(XRD),
Fourier
transform
infrared
spectroscopy
(FT-IR),
scanning
electron
microscopy
(SEM),
thermogravimetric
analysis
(TGA/DTG),
and
swelling
study.
adsorption
performance
CMC/Gel2
(C/G2)
hydrogel
on
methylene
blue
(MB)
was
investigated.
results
showed
better
conditions:
time
300
min,
initial
MB
concentration
500
mg/L,
adsorbent
dosage
1.2
g/L,
solution
pH
7,
temperature
30
°C.
kinetics
fit
pseudo-second
order
model,
isotherm
Langmuir
model.
maximum
capacity
reached
943.40
mg/g.
process
is
spontaneous
exothermic
process.
After
three
adsorption-desorption
cycles,
removal
rate
still
85%,
with
good
reusability.
Consequently,
can
be
used
an
friendly,
stable,
efficient
for
dyes
in
wastewater
treatment.
Biomass and Bioenergy,
Journal Year:
2023,
Volume and Issue:
176, P. 106902 - 106902
Published: July 16, 2023
Dark
fermentation
from
Ulva
spp.
hydrolysate,
a
third-generation
feedstock,
can
be
exploited
as
sustainable
alternative
for
biofuel
production
it
possesses
high
carbohydrate
content,
contributes
to
decarbonisation
and
allows
the
simultaneous
of
bioH2
chemicals.
However,
requires
microorganisms
with
enzymatic
capability
metabolise
sugars
released
by
macroalgae.
In
present
study,
natural
process
exploring
microbial
community
growing
attached
onto
was
first
time
assessed
an
inoculation
method
hydrolysate.
Inoculum
enrichment
spp
tested
at
4,
30
55
°C
in
batch
experiment.
Then,
liquid
phase
inoculum
continuous
up-flow
anaerobic
structured
bed
reactor
(AnSTBR)
fed
diluted
acid-thermal
hydrolysate
°C.
At
initial
pH
6.5
sulfidogenic
pathway
predominant,
however
decreasing
5.5
stimulated
production,
higher
°C,
resulting
median
volumetric
hydrogen
rate
(VHPR)
297.5
NmL
L−1
d−1.
The
main
soluble
metabolites
(SM)
were
butyric
acid
(HBu)
acetic
(HAc),
reaching
medians
912.9
483.4
mg
L−1.
primary
solventogenic,
ethanol
(EtOH)
HAc
ratio
2.5:1.
Therefore,
strategy
found
suitable
inoculate
dark
reactor.
Polysaccharides,
Journal Year:
2023,
Volume and Issue:
4(4), P. 371 - 389
Published: Oct. 4, 2023
The
use
of
natural
polymers
has
increased
due
to
concern
about
environmental
pollution
caused
by
plastics
and
emerging
pollutants
from
fossil
fuels.
In
this
context,
polysaccharides
macroalgae
microalgae
arise
as
abundant
resources
for
various
biological,
biomedical,
food
applications.
Different
nanomaterials
are
produced
these
act
effective
carriers
in
the
pharmaceutical
industry:
drug
nutrient
carriers,
active
compound
encapsulation,
delivery
therapeutic
agents
tumor
tissues.
Polysaccharides-based
applied
functional
ingredients
incorporated
into
foods
can
improve
texture
properties
decrease
caloric
density
products.
These
nanostructures
also
present
potential
developing
packaging
with
antioxidant
antimicrobial
properties.
addition,
polysaccharides-based
biocompatible,
biodegradable,
safe
medical
practices
prevent
manage
chronic
diseases,
such
diabetes,
obesity,
cardiovascular
disease.
sense,
review
article
addresses
algal
manufacturing
their
applications
biomedical
areas.
paper
discusses
general
aspects
algae
a
source
polysaccharides,
polymers,
well
recent
studies
industries.
IWA Publishing eBooks,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 7, 2023
Abstract
This
book
provides
comprehensive
insights
on
existing
technologies
and
up-to-date
advances
in
the
field
of
waste
management
treatment
using
algal-based
via
different
approaches
systems.
Coverage
includes:
Process
fundamentals
algae-based
wastewater
treatment,
including
metabolic
modelling,
algal
species
for
resource
recovery
algae/bacteria
interactions.Critical
status,
major
challenges
modern
engineering
solutions
microalgae-related
processes.Case
studies
coculturing
microalgae
with
methanotrophs
enhanced
nutrient
from
wastewater.Advanced
ways
valorisation
processes
by
integrating
them
other
such
as
anaerobic
digestion,
biogas
upgradation
bioelectrochemical
systems.Up-to-date
information
biotechnological
deriving
value-added
bioproducts
biopolymers
microalgae,
biofuels,
pigments
nutraceuticals.
is
an
essential
textbook
both
undergraduate
graduate
students
pursuing
degrees
environmental
sciences,
technologies,
or
engineering.
Additionally,
equally
useful
a
broad
audience,
researchers,
engineers,
policy
makers
interested
systems
management.
The
also
tailored
to
be
used
advanced
manual
practitioners
consultancies
working
recovery.
ISBN
9781789063530
(paperback)
9781789063547
(eBook)
9781789063554
(ePub)
ACS Sustainable Resource Management,
Journal Year:
2024,
Volume and Issue:
1(9), P. 1876 - 1905
Published: Aug. 19, 2024
Due
to
expanding
seaweed-based
industries
and
the
growing
popularity
of
seaweed
biorefineries,
there
is
an
increasing
opportunity
for
high-value
applications
seaweed-extracted
polysaccharides.
One
most
fascinating
these
biopolymers
in
field
agriculture,
where
they
have
been
used
as
fertilizers,
hydrogel/granules
slow
release
urea,
herbicides,
insecticides,
water
reservoirs
tackle
drought-like
situations.
Polysaccharides,
such
alginate,
agar/agarose,
ulvan,
carrageenan,
etc.,
a
long
time
multiple
applications;
however,
their
use
development
hydrogels
subsequent
utilization
deal
with
agricultural
challenges
like
drought
mitigation,
reduce
chemicals
leaching
from
or
lessen
harmful
impacts
pesticides
increase
crop
yields,
has
recently
gained
significant
amount
interest
scientists.
In
this
review
article,
we
thoroughly
discuss
technique
generally
utilized
extract
polysaccharides
seaweeds,
structure,
gelation
mechanism,
various
hydrogels,
namely,
carrageenan.
The
impact
bioadditives
surface
modification
techniques
on
properties
polysaccharide-based
absorption/retention
tendency,
variation
fertilizers/pesticide
releasing
capability,
are
discussed.
Finally,
along
some
future
possibilities
also
Materials,
Journal Year:
2023,
Volume and Issue:
16(9), P. 3385 - 3385
Published: April 26, 2023
The
present
work
describes
the
potential
application
of
environmentally
friendly
sodium
carboxymethylcellulose/gelatin
(CMC/Gel)
semi-interpenetrating
hydrogels
prepared
by
citric
acid
as
a
nontoxic
cross-linking
agent
to
adsorb
dyes.
were
characterized
X-ray
diffraction
(XRD),
Fourier
transform
infrared
spectroscopy
(FT-IR),
scanning
electron
microscopy
(SEM),
thermogravimetric
analysis
(TGA/DTG),
and
swelling
study.
adsorption
performance
CMC/Gel2
(C/G2)
hydrogel
on
methylene
blue
(MB)
was
investigated.
results
showed
better
conditions:
time
300
min,
initial
MB
concentration
500
mg/L,
adsorbent
dosage
1.2
g/L,
solution
pH
7,
temperature
30
°C.
kinetics
fit
pseudo-second
order
model,
isotherm
Langmuir
model.
maximum
capacity
reached
943.40
mg/g.
process
is
spontaneous
exothermic
process.
After
three
adsorption-desorption
cycles,
removal
rate
still
85%,
with
good
reusability.
Consequently,
can
be
used
an
friendly,
stable,
efficient
for
dyes
in
wastewater
treatment.
