Combining a photocatalytic biotrickling filter with a microbial fuel cell for the removal of aniline wastewater and exhaust gases with electricity generation
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 160755 - 160755
Published: Feb. 1, 2025
Language: Английский
Reductive sulfur mediated Fe2+ fixation and regeneration in valorizing waste activated sludge ash to Fe2+@S-doped sodalite material for emerging contaminants degradation: Performance and mechanism
Yuting Zhou,
No information about this author
Hao Wu,
No information about this author
Jannat Javed
No information about this author
et al.
Chemical Engineering Science,
Journal Year:
2025,
Volume and Issue:
unknown, P. 121438 - 121438
Published: Feb. 1, 2025
Language: Английский
The Electrooxidation of Synthetic Bipyridyl Herbicide Wastewaters with Boron-Doped Diamond Electrodes: A Technical and Economic Study to Boost Their Application for Pollution Prevention in the Agricultural Sector
Processes,
Journal Year:
2024,
Volume and Issue:
12(11), P. 2486 - 2486
Published: Nov. 8, 2024
Boron-doped
diamond
electrodes
(BDDEs)
offer
a
highly
efficient
pathway
to
mineralize
recalcitrant
compounds
due
their
reduced
energy
requirements,
fewer
chemical
inputs,
and
mechanical
stability.
In
this
work,
the
electrochemical
degradation
of
paraquat
(PQ)
diquat
(DQ)
was
studied
using
an
undivided
cell
(Condiacell®-type)
at
circumneutral
pH,
under
galvanostatic
control.
The
roles
applied
current
density,
volumetric
flow
rate,
herbicide
concentration
were
systematically
through
central
composite
design
(CCD)
closed-flow
reaction
setup.
Under
best
operating
conditions
(i.e.,
for
PQ:
1.6
mA/cm2,
80
mL/min,
70
mg/L;
DQ:
1.5
73
mg/L),
spectrophotometric
analysis
evidenced
that
herbicides
satisfactorily
removed
(ca.
100%)
while
mineralization
degrees
above
90%.
Furthermore,
produced
effluents
yielded
significant
increases
in
seed
germination
root
length,
which
suggest
reduction
toxicity.
Energy
consumptions
0.13
0.18
kWh/g
TOC
are
reported
with
cells
PQ
DQ
treatments,
respectively.
treatments
by
electrooxidation
estimated
emit
nearly
2.7
38.9
kg
CO2/m3
water
treated,
cost
around
USD
250/m3.
Carbon
emissions
could
be
greatly
decreased
(0.28
CO2/m3)
(0.40
if
electricity
generated
from
renewable
resources.
Although
study
suggests
use
BDDE
can
considered
as
green
alternative
agrochemical
removal
lower
carbon
emissions,
environmental
profile
process
is
determined
degree
renewability
electrical
grid
each
country
or
region.
Language: Английский
Impact of Organic Load on Methane Yields and Kinetics during Anaerobic Digestion of Sugarcane Bagasse: Optimal Feed-to-Inoculum Ratio and Total Solids of Reactor Working Volume
Amal Babu Puthumana,
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Prasad Kaparaju
No information about this author
Energies,
Journal Year:
2024,
Volume and Issue:
17(20), P. 5083 - 5083
Published: Oct. 12, 2024
The
effect
of
increasing
organic
load
on
the
specific
methane
yields
(SMYs)
and
kinetics
production
during
anaerobic
digestion
(AD)
sugarcane
bagasse
(SB)
was
investigated
in
batch
experiments
at
37
°C.
AD
system
increased
based
an
increase
feed-to-inoculum
(F/I)
ratio
(T1–T5)
Total
Solids
(TS)%
working
volume
(T6–T10).
results
show
that
both
treatment
sets,
led
to
a
decrease
SMY.
Higher
loads
terms
F/I
(T4
T5)
were
inhibited
due
Volatile
Fatty
Acid
(VFA)
accumulation.
On
other
hand,
higher
(T8,
T9
T10)
TS%
by
accumulation
NH4-N.
Thus,
50
gVS/L
=
1.0
TS
10%
(T3)
found
be
highest
had
no
significant
inhibitions
among
tested
treatments.
from
kinetic
studies
first-order
model
is
best
fit
for
SMY
data,
with
average
differences%
2.32%
3.13%
treatments
T1–T5
T6–T10,
respectively.
Language: Английский
A Systematic Review and Meta-Analysis of the Sustainable Impact of Sewage Sludge Application on Soil Organic Matter and Nutrient Content
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(22), P. 9865 - 9865
Published: Nov. 12, 2024
The
increasing
scarcity
of
natural
resources
makes
the
linear
production
model
unsustainable,
highlighting
need
for
more
sustainable
practices
under
umbrella
circular
economic
principles.
Sewage
sludge
emerges
as
a
promising
solution
to
provide
soil
organic
matter
(SOM)
and
nutrients.
This
meta-analysis
evaluated
impacts
three
levels
application
(low,
medium,
high)
on
(OM),
nitrogen
(N),
phosphorus
(P),
copper
(Cu),
zinc
(Zn)
contents,
considering
different
areas
experimental
conditions
worldwide.
analysis
included
37
studies
355
comparisons,
after
screening
7625
records,
following
2020
PRISMA
protocol.
effects
concentrations,
continents,
types
experiment
(field
or
greenhouse)
were
evaluated.
significantly
increased
OM,
N,
Cu,
Zn
levels,
mainly
at
medium
high
rates.
largest
observed
in
greenhouses,
suggesting
variation
by
location
environment.
Moderators
explained
part
results,
but
residual
heterogeneity
test
revealed
that
there
is
still
unexplained
variability.
Language: Английский