Removal of Methylene Blue from Simulated Wastewater Based upon Hydrothermal Carbon Activated by Phosphoric Acid
Water,
Год журнала:
2025,
Номер
17(5), С. 733 - 733
Опубликована: Март 3, 2025
Cationic
dyes
pose
potential
health
risks
to
humans
due
their
higher
toxicity
levels.
Most
current
research
focuses
on
the
utilization
of
biomass
waste
in
preparation
multifunctional
materials
mitigate
adverse
impact
cationic
dye
wastewater
environment.
However,
conventional
methods
biochar
require
elevated
pyrolysis
temperatures
and
greater
energy
consumption.
Accordingly,
this
study
aims
investigate
effectiveness
removal
methylene
blue
(MB)
from
simulated
using
a
one-step
phosphoric
acid
activation
hydrothermal
carbonization
technique.
SEM,
BET,
XRD,
FTIR,
XPS
analyses
were
conducted
surface
morphology
chemical
composition
pine
sawdust
(PS)
as
raw
material,
with
carbon
(HTC-PS),
acid-activated
(PHTC-PS).
The
results
demonstrate
that
PHTC-PS
exhibits
maximum
adsorption
capacity
268.4
mg/g
for
MB
at
298
K.
experimental
data
its
consistency
through
both
Langmuir
isotherm
model
pseudo-second-order
kinetic
model,
suggesting
mechanism
predominantly
involves
monolayer
formation
interactions.
Additionally,
thermodynamic
parameters
reveal
is
spontaneous
endothermic
reaction.
Thus,
demonstrates
method
can
achieve
satisfactory
efficiency
advantages
lower
consumption,
simplicity
operation,
mild
conditions.
Язык: Английский
Palladium Nanoparticles Anchored on Cellulose-Derived Amphiphilic Hydrochar for Pickering Interfacial Catalysis
Processes,
Год журнала:
2025,
Номер
13(2), С. 339 - 339
Опубликована: Янв. 26, 2025
The
development
of
Pickering
interfacial
catalysts
for
organic
reactions
in
water
is
great
importance
to
the
green
chemistry.
In
this
study,
amphiphilic
hydrochar
was
prepared
by
a
simple
urea-modified
hydrothermal
carbonization
with
cellulose
as
an
environmentally
benign
carbon
source.
It
found
that
addition
urea
could
not
only
promote
but
also
introduce
N
atoms
final
material
and
tune
amphiphilicity
hydrochar.
Palladium
nanoparticles
supported
on
N-doped
exhibited
high
activity
Suzuki
reaction
aqueous
media.
can
be
seen
effectively
stabilize
emulsion,
increase
interface
surface
area,
further
accelerate
reaction.
Язык: Английский
Impact of Combined Application of Swine Manure Liquid and Phosphorus Fertilizers on Soil Phosphorus and Microbial Communities
Sustainability,
Год журнала:
2025,
Номер
17(5), С. 2037 - 2037
Опубликована: Фев. 27, 2025
The
rapid
increase
in
pig
production
has
become
a
major
contributor
to
environmental
issues
due
the
mismanagement
of
organic
waste.
sustainable
and
effective
transformation
this
waste
into
fertilization
resource
an
urgent
topic
for
protection,
new
regulations
have
been
imposed.
present
study
aimed
investigate
effects
different
ratios
swine
manure
liquid
(SML)
chemical
fertilizers
on
soil
phosphorus
forms
microbial
communities
through
field
experiments
cultivating
spring
wheat
(cultivar
“Jinqiang
10”)
Hebei,
China.
results
indicated
that
application
SML
portions
with
traditional
fertilizer
can
enhance
pH
electrical
conductivity
(EC),
as
well
available
phosphorus,
particularly
when
proportion
is
high
(SML
≥
75%).
Compared
CK,
content
group
C3
increased
by
22.3%.
facilitated
stable
unstable
conversion
inorganic
phosphorus.
Additionally,
H2O-P,
NaHCO3-Pi,
NaHCO3-Po,
promoted
NaOH-Po
NaHCO3-Po.
Studies
bacterial
diversity
treatments
no
significant
impact
0–20
cm
layer,
whereas
dominant
fungal
genera
were
positively
correlated
may
facilitate
combined
improvement
improve
availability.
Язык: Английский
Advances in Hydrothermal Carbonization for Biomass Wastewater Valorization: Optimizing Nitrogen and Phosphorus Nutrient Management to Enhance Agricultural and Ecological Outcomes
Water,
Год журнала:
2025,
Номер
17(6), С. 800 - 800
Опубликована: Март 11, 2025
This
study
presents
a
novel
approach
that
integrates
hydrothermal
carbonization
(HTC)
technology
with
circular
economy
principles
to
optimize
the
management
of
nitrogen
and
phosphorus
in
agricultural
wastewater.
Given
increasing
global
resource
scarcity
continuous
ecological
degradation,
valorization
biomass
wastewater
has
become
critical
pathway
for
promotion
sustainable
development.
Biomass
wastewater,
which
contains
crop
residues,
forestry
leftovers,
food
processing
byproducts,
long
been
regarded
as
useless
waste.
However,
this
abundant
organic
matter
possesses
significant
renewable
energy
potential.
The
can
significantly
reduce
environmental
pollution.
Through
optimization
HTC
process
parameters,
we
achieved
an
improvement
quality
yield
carbonized
products,
facilitating
efficient
recycling
utilization
resources.
research
demonstrates
transform
into
valuable
biofertilizers,
energy,
feed,
while
simultaneously
reducing
reliance
on
fossil
fuels,
decreasing
greenhouse
gas
emissions,
mitigating
impact
activities.
paper
provides
comprehensive
exploration
application
ecosystems,
highlighting
its
beneficial
role
management,
efficiency,
pollution
reduction.
findings
suggest
holds
potential
optimizing
treatment,
promoting
recycling,
advancing
Furthermore,
offers
theoretical
support
practical
guidance
implementation
is
paramount
importance
fostering
economic
development
achieving
agriculture.
Язык: Английский
Phosphorus Fraction in Hydrochar from Co-Hydrothermal Carbonization of Swine Manure and Rice Straw: An Optimization Analysis Based on Response Surface Methodology
Water,
Год журнала:
2024,
Номер
16(15), С. 2208 - 2208
Опубликована: Авг. 4, 2024
Livestock
manure
and
crop
residues
are
significant
sources
of
phosphorus.
However,
the
ineffectiveness
current
processing
technologies
often
leads
to
suboptimal
recovery
this
phosphorus,
causing
considerable
resource
wastage
environmental
pollution.
Recently,
global
research
has
increasingly
been
focused
on
organic
waste
materials
using
hydrothermal
carbonization
technology.
This
study
investigated
variations
in
phosphorus
forms
hydrochar
produced
from
swine
rice
straw,
employing
diverse
conditions
applying
Box–Behnken
response
surface
methodology
Hedley’s
fractionation
method.
The
results
indicated
that
inorganic
predominates
hydrochar,
with
comprising
5–30%
total
Furthermore,
found
available
content,
as
measured
by
NaHCO3
extraction,
decreased
reaction
time
temperature
process
increased.
concentrations
H2O-P
NaHCO3-P
fractions
increasing
times
temperatures
but
increased
a
higher
manure-to-straw
ratio.
Conversely,
NaOH-P
HCl-P
showed
an
trend
rising
temperature,
prolonging
time,
andusing
high
Consequently,
offers
vital
theoretical
practical
insights
into
utilization
livestock
significantly
contributing
challenges
management
sustainability
agriculture.
Язык: Английский
Bibliometric Analysis of Hydrothermal Wastewater Treatment in the Last Two Decades
Water,
Год журнала:
2025,
Номер
17(5), С. 746 - 746
Опубликована: Март 4, 2025
The
reuse
of
wastewater
expands
its
area
influence
due
in
part
to
the
water
crisis
and
increase
population
urban
areas.
Technologically,
methods
treatment
separation
toxic
agents
have
been
diversified
provide
with
a
second
use.
objective
this
work
was
evaluate
growth
development
science
hydrothermal
(HTAR)
through
bibliometric
analysis.
keywords
directly
obtained
from
method
were
used
order
carry
out
integration
related
published
research,
terms
search
both
separately
crossly
“treatment,
hydrothermal,
wastewater”
database
SCOPUS;
97
response
records
filtered
87
documents
that
analyzed
using
BIBLIMETRIX
as
R
Statistical
interface.
According
results
obtained,
trend
is
shown,
17
articles
2023
21
2024.
author
highest
number
contributions
on
topic
Yuanhui
Zhang.
countries
most
involved
issue
are
China,
U.S.A.,
Japan;
China
one
publications.
scientific
technological
regarding
HTAR
shown;
that,
technology
aimed
at
use
generation
energy.
In
addition,
liquefaction
being
investigated
generate
biocrude
bio-oils;
carbonization
for
hydrochar;
gasification
produce
methane
hydrogen;
all
biomass
high
moisture
content.
Язык: Английский
Elevated effect of hydrothermal treatment on phosphorus transition between solid-liquid phase in swine manure
Results in Engineering,
Год журнала:
2024,
Номер
unknown, С. 102887 - 102887
Опубликована: Сен. 1, 2024
Язык: Английский
The Promotion of Anaerobic Digestion Technology Upgrades in Waste Stream Treatment Plants for Circular Economy in the Context of “Dual Carbon”: Global Status, Development Trend, and Future Challenges
Water,
Год журнала:
2024,
Номер
16(24), С. 3718 - 3718
Опубликована: Дек. 23, 2024
This
review
provides
a
comprehensive
overview
of
the
advancements
and
challenges
anaerobic
digestion
technology
in
waste
stream
treatment
plants
under
framework
circular
economy,
emphasizing
its
role
achieving
“dual
carbon”
goals.
As
climate
change
intensifies,
with
contributing
significantly
to
global
emissions,
there
is
pressing
need
optimize
energy
efficiency
reduce
carbon
outputs
this
sector.
Anaerobic
highlighted
as
solution
for
converting
organic
into
renewable
biogas
digestate,
enabling
self-sufficiency
reducing
greenhouse
gasses.
The
study
highlights
that
enables
conversion
nutrient-rich
facilitating
significant
reductions
GHG
emissions.
Successful
implementations,
such
Weifang,
China,
demonstrate
feasibility
upgrading
biomethane
local
use.
Advanced
technologies
like
bioelectrochemical
methanation
membrane
bioreactors
enhance
production
efficiency,
while
co-digestion
proves
effective
even
challenging
conditions.
Despite
these
advancements,
identifies
critical
challenges,
including
high
investment
costs,
technical
inefficiencies,
regulatory
barriers,
particularly
developing
countries.
insights
integrating
economy
principles
offers
foundation
future
policies
research
aimed
at
neutrality
sustainable
management.
Язык: Английский
Technical and financial evaluation of an emerging thermochemical technology for sustainable management of municipal wastewater sludge
Water Science & Technology,
Год журнала:
2024,
Номер
90(12), С. 3139 - 3148
Опубликована: Дек. 9, 2024
ABSTRACT
The
management
of
municipal
wastewater
sludge
is
a
significant
challenge
for
management,
particularly
the
need
to
manage
and
dispose
in
an
environmentally
friendly
sustainable
manner.
emergence
stricter
regulations
regarding
landfill
disposal
necessitates
alternative
options
with
thermochemical
technologies
potentially
contributing
towards
achieving
carbon
neutrality
goals
fostering
development.
This
study
sought
address
these
challenges
through
technical
financial
evaluation
pilot-scale
emerging
technology,
enhanced
hydrothermal
polymerization
provide
adequate
understanding
technology's
feasibility
its
application
volarization
into
multi-use
hydrochar.
findings
indicated
that
polymerization-generated
hydrochar
exhibited
energy
content
compared
sludge,
suggesting
potential
use
as
source.
preliminary
designs
full-scale
greenfield
installation
retrofit
processing
50
t/d
35
dry
respectively,
were
evaluated
be
technically
feasible.
Furthermore,
on
basis
designs,
technology
was
determined
most
financially
feasible
option,
also
offering
other
unique
advantages
over
well-established
currently
used
within
services.
Язык: Английский