Water Science & Technology,
Год журнала:
2024,
Номер
90(2), С. 446 - 460
Опубликована: Июль 4, 2024
ABSTRACT
This
study
compared
an
anaerobic
baffled
reactor
(ABR)
with
a
multi-staged
UASB
(MS-UASB)
to
investigate
the
effects
of
loading
shocks
on
digestion
in
both
reactors.
Both
reactors
were
subjected
five
hydraulic/organic
shocks,
each
lasting
3
days.
During
hydraulic
shock
highest
organic
rate
(OLR)
(OLR
24
g
COD
L−1
d−1),
MS-UASB
and
ABR
exhibited
minimum
effluent
removal
efficiency
90.9
73.0%,
average
methane
concentrations
decreasing
62.4
±
0.9%
59.8
3.0%.
Under
12
was
81.5
73.4%,
60.4
1.1%
58.6
0.8%.
After
phase,
biomass
concentration
reached
159
130%
ABR,
respectively.
The
reason
for
improved
operational
stability
is
due
presence
solid/liquid/gas
separator,
which
promotes
formation
granular
sludge
reduces
washout.
In
addition,
higher
abundance
syntrophic
bacterium
Candidatus
cloacamonas,
plays
crucial
role
maintaining
systems.
Toxics,
Год журнала:
2023,
Номер
11(8), С. 658 - 658
Опубликована: Авг. 1, 2023
The
improper
disposal
of
toxic
and
carcinogenic
organic
substances
resulting
from
the
manufacture
dyes,
drugs
pesticides
can
contaminate
aquatic
environments
potable
water
resources
cause
serious
damage
to
animal
human
health
ecosystem.
In
this
sense,
heterogeneous
photocatalysis
stand
out
as
one
effective
cost-effective
depollution
technique.
use
metal
oxide
nanocomposites
(MON),
mixture
two
or
more
oxides
between
these
other
functional
semiconductor
materials,
have
gained
increasing
attention
researchers
industrial
developers
a
potential
alternative
produce
efficient
environmentally
friendly
photocatalysts
for
remediation
contamination
by
compounds.
Thus,
work
presents
an
updated
review
main
advances
in
nanocomposites-based
decontamination
polluted
substances.
A
bibliometric
analysis
allowed
show
evolution
importance
research
topic
literature
over
last
decade.
results
study
also
showed
that
hierarchical
nanostructures
oxides,
well
conducting
polymers
carbon
currently
materials
synthesis
MON,
with
better
performance
degradation
pharmaceuticals
pesticides.
Membranes,
Год журнала:
2022,
Номер
12(7), С. 691 - 691
Опубликована: Июль 4, 2022
In
view
of
the
difficulty
in
obtaining
membrane
bioreactor
(MBR)
flux
real
time,
considering
disadvantage
back
propagation
(BP)
network
predicting
MBR
flux,
such
as
local
minimum
value
and
poor
generalization
ability
model,
this
article
introduces
tent
chaotic
mapping
standard
sparrow
search
algorithm
(SSA),
which
improves
uniformity
population
distribution
searching
(used
to
optimize
key
parameters
BP
network).
The
(Tent-SSA-BP)
fouling
prediction
model
is
established
achieve
accurate
flux;
compared
BP,
genetic
(GA-BP),
particle
swarm
optimization
(PSO-BP),
extreme
learning
machine(SSA-ELM),
(SSA-BP),
Tent
(Tent-PSO-BP)
models,
it
has
unique
advantages.
Compared
with
before
improvement,
improved
soft
sensing
reduces
MAPE
by
96.76%,
RMSE
99.78%
MAE
95.61%.
accuracy
proposed
reaches
97.4%,
much
higher
than
48.52%
BP.
It
also
other
been
greatly
improved,
some
engineering
reference
value.
Climate
change
poses
challenges
to
infrastructure
resilience
in
Southeast
Asia's
flood-prone
regions.
This
study
identifies
and
evaluates
strategies
for
enhancing
through
wastewater
treatment
plants
(WWTPs)
Singapore,
Malaysia,
Thailand,
Indonesia.
Using
a
mixed-method
approach,
we
analyzed
the
case
studies
conducted
quantitative
assessments
of
flood
mitigation
efforts.
Data
were
collected
(2021–2024)
site
visits,
interviews
with
key
stakeholders,
analysis
historical
performance
data.
involved
statistical
methods
assessing
their
effectiveness
comparative
analyses
across
them.
Singapore
reduced
areas
by
30%
using
integrated
WWTP
technologies
drainage
systems,
while
Malaysia
developed
resilient
networks
WWTPs
designed
withstand
extreme
weather,
preventing
85%
contamination
cases.
Thailand
combined
green
blue
WWTPs,
decreasing
vulnerability
25%.
Indonesia
invested
decentralized
urban
areas,
increasing
40%.
Nature-based
solutions,
such
as
ecological
restoration,
reduce
flooding
impacts
20%.
The
implications
policymakers
practitioners
include
need
integrate
advanced
nature-based
solutions
bolster
mitigate
risks.
offers
insights
into
developing
effective
climate
adaptation
flood-vulnerable
regions,
emphasizing
critical
role
resilience.
Critical Reviews in Biotechnology,
Год журнала:
2023,
Номер
44(6), С. 1040 - 1060
Опубликована: Авг. 29, 2023
The
generation
of
food
waste
(FW)
is
increasing
at
an
alarming
rate,
contributing
to
a
total
32%
all
the
produced
globally.
Anaerobic
digestion
(AD)
effective
method
for
dealing
with
organic
wastes
various
compositions,
like
FW.
Waste
valorization
into
value-added
products
has
increased
due
conversion
FW
biogas
using
AD
technology.
A
variety
pathways
are
adopted
by
microbes
avoid
unfavorable
conditions
in
AD,
including
competition
between
sulfate-reducing
bacteria
and
methane
(CH
