Catalysts,
Год журнала:
2024,
Номер
14(9), С. 591 - 591
Опубликована: Сен. 3, 2024
Textile
wastewater
containing
dyes
poses
significant
environmental
hazards.
Advanced
oxidative
processes,
especially
the
heterogeneous
photo-Fenton
process,
are
effective
in
degrading
a
wide
range
of
contaminants
due
to
high
conversion
rates
and
ease
catalyst
recovery.
This
study
evaluates
photodegradation
azo
Acid
Red
18
(AR18),
66
(AR66),
Orange
2
(OR2)
using
magnetite
as
catalyst.
The
magnetic
was
synthesized
via
hydrothermal
process
at
150
°C.
Experiments
were
conducted
room
temperature,
investigating
effect
dosage,
pH,
initial
concentrations
H2O2
AR18
dye.
Kinetic
thermodynamic
studies
performed
25,
40,
60
°C
for
three
(AR18,
AR66,
OR2)
dye
structures
on
degradation
efficiency
investigated.
At
25
0.33
mmolL−1
pH
3.0,
1.4
gL−1
mgL−1
under
UV
radiation
16.7
mWcm−2,
showed
62.3%
AR18,
79.6%
83.8%
OR2
180
min
reaction.
oxidation
these
conditions
is
spontaneous
endothermic.
pseudo-first-order
kinetic
constants
indicated
strong
temperature
dependence
with
an
order
reactivity
type
>
AR66
which
associated
molecular
size,
steric
hindrance,
aromatic
conjugation,
electrostatic
repulsion,
nature
acid–base
interactions
catalytic
surface.
Water,
Год журнала:
2024,
Номер
16(17), С. 2434 - 2434
Опубликована: Авг. 28, 2024
Water
quality
and
usability
are
global
concerns
due
to
microbial
chemical
pollution
resulting
from
anthropogenic
activities.
Therefore,
strategies
for
eliminating
contaminants
required.
In
this
context,
the
removal
decrease
in
antibiotic
activity
(AA)
associated
with
levofloxacin
(LEV),
using
TiO2
Ag/TiO2
catalysts,
without
sunlight
peroxydisulfate,
was
evaluated.
Additionally,
disinfection
capacity
of
catalytic
systems
assessed.
The
catalysts
were
synthesized
characterized.
Moreover,
effect
Ag
doping
on
visible
light
absorption
determined.
Then,
photocatalytic
treatment
LEV
water
performed.
materials
characterization
EPR
analyses
revealed
that
degradation
AA
ascribed
a
combined
action
solar
light,
sulfate
radical,
TiO2-based
materials.
Also,
primary
byproducts
elucidated
theoretical
(predictions
about
moieties
more
susceptible
being
attacked
by
degrading
species)
experimental
techniques
(LC-MS),
which
evidenced
transformations
piperazyl
ring,
carboxylic
acid,
cyclic
ether
LEV.
linked
transformations.
addition,
system
(i.e.,
light/catalyst/peroxydisulfate)
shown
be
effective
E.
coli
inactivation,
indicating
versatility
decontamination
disinfection.
Sustainability,
Год журнала:
2024,
Номер
16(16), С. 7185 - 7185
Опубликована: Авг. 21, 2024
Worldwide,
over
half
of
all
preschool-aged
children
and
two-thirds
non-pregnant
women
reproductive
age
suffer
from
hidden
hunger.
This
situation
may
worsen
due
to
the
expected
increase
in
world
population
effects
climate
change.
The
objective
this
paper
is
conduct
a
review
relationship
between
soil,
plants,
humans
at
nutritional
level,
factors
that
affect
availability
nutrients,
sustainable
strategies
reduce
hunger
an
organic
waste
utilization
point
view.
Nutritional
deficiency
people
begins
with
nutrient-deficient
followed
by
crops
do
not
meet
humans’
needs.
According
previous
studies,
most
agricultural
soils
are
deficient
nutrients;
however,
residues
containing
high
concentrations
minerals
present
non-edible
parts
discarded.
New
opportunities
(based
on
circular
economy
strategy)
opening
up
take
advantage
nutrient
pool
residues,
such
as
preparation
substrates
(technosols)
or
amendments.
Their
incorporation
into
soil
consider
various
circumstances
ensure
mineralization
bioavailability
nutrients
for
crops.
Several
agronomic
practices
methods
monitor
crop
depletion
can
be
considered
among
best
mitigate
through
determining
which
foods
should
ingested,
how
process
them
mineral
bioavailability.
Water,
Год журнала:
2024,
Номер
16(18), С. 2647 - 2647
Опубликована: Сен. 18, 2024
Recently,
water
has
become
a
resource
that
generates
controversy
due
to
shortage
alarms
and
high
consumption
by
production
companies.
Making
good
use
of
the
main
objective
government
institutions.
The
food
industry
large
amount
wastewater,
concentrating
largest
number
contaminants
originated
in
its
processes.
Wastewater
from
is
characterized
having
organic
matter,
especially
fats
oils,
as
well
suspended
solids.
this
research
carry
out
characterization
effluents
generated
wastewater
treatment
plant
sector
based
on
Mexican
international
regulations
determine
whether
it
reusable.
This
article
addresses
Mexico’s
lag
reuse
treated
face
crisis,
highlighting
urgency
adopting
these
practices
mitigate
scarcity.
For
development
investigation,
samples
were
collected
at
discharge
point
produced
company’s
effluents,
followed
an
evaluation
their
physical,
chemical,
biological
parameters,
finally,
was
determined
effluent
follows
regulatory
standards
for
into
city
sewer
but
outside
range
productive
processes
or
irrigation
green
areas.
Sustainability,
Год журнала:
2024,
Номер
16(18), С. 8081 - 8081
Опубликована: Сен. 16, 2024
Rapid
population
growth,
urbanization,
and
diverse
production
materials
have
led
to
a
surge
in
municipal
solid
waste
(MSW),
harming
the
environment,
climate,
sanitation.
Despite
China’s
efforts
implement
MSW
segregation
policies,
results
been
unsatisfactory.
Research
often
emphasizes
public
participation,
with
less
focus
on
entire
policy
implementation
process.
This
paper
employed
Smith’s
theoretical
model
comprehensively
analyze
challenges
of
implementing
policy,
using
qualitative
methods
secondary
data
from
literature
documents.
The
findings
revealed
at
four
levels:
formulation,
agencies,
target
groups,
external
environment.
Issues
include
ambiguity,
unclear
authority,
government-enterprise
cross-functionality,
casual
attitudes,
implementer
shortages,
poor
economic
disparities.
To
address
these,
study
recommends
enhancing
engagement,
clarifying
responsibilities
among
increasing
financial
support
for
disadvantaged
areas
improve
implementation.
