While
Deltas
represent
about
5%
of
the
global
land
surface,
they
occupy
over
550
million
people
(i.e.,
a
high
population
density).
The
Delta
area,
which
is
characterized
by
flat
topography,
fertile
alluvial
soils,
and
abundant
natural
resources,
vital
for
human
habitation.
However,
this
area
subjected
to
diverse
anthropogenic
threats,
owing
climate
change
vulnerability.
delicate
equilibrium
delta
ecosystems
threatened
as
activities
escalate
(e.g.,
illegal
solid-waste
dumping),
necessitating
innovative
solutions.
This
chapter
includes
main
concluding
remarks
on
evolution
waste
management
practices
within
Deltas,
emphasizing
significance
sustainable
approaches
balance
ecological
socio-economic
aspects.
As
continue
confront
dynamic
seasonal
challenges,
book
tends
provide
foundation
promoting
resilient
in
solid
(SWM)
these
ecosystems.
Forests,
Год журнала:
2024,
Номер
15(8), С. 1372 - 1372
Опубликована: Авг. 6, 2024
Biomass
waste,
which
is
biodegradable
and
vastly
underutilized,
generated
in
huge
quantities
worldwide.
Forestry
agricultural
biomass
wastes
are
notable
for
their
wide
availability,
high
yield,
biodegradability,
recyclability.
The
accumulation
of
these
not
only
occupies
valuable
land
but
causes
serious
environmental
pollution,
can
ultimately
harm
human
health.
Therefore,
leveraging
scientific
technology
to
convert
forestry
bio-waste
into
bioenergy
other
products
crucial.
In
this
paper,
common
such
as
straw,
rice
husks,
livestock
manure,
tree
branches,
sawdust,
(bioethanol,
biogas,
biodiesel,
biohydrogen)
were
selected
keywords,
with
the
theme
green
efficient
utilization.
This
paper
provides
a
comprehensive
review
sources
existing
recycling
technologies,
potential
material
additives
conversion
energy
derivatives,
along
future
prospects.
Sustainability,
Год журнала:
2024,
Номер
16(15), С. 6419 - 6419
Опубликована: Июль 26, 2024
The
anaerobic
digestion
of
wastewater
treatment
sludge
(WAS)
produces
a
“green”
biogas
while
reducing
the
amount
residual
sludge.
To
increase
yield
biogas,
several
individual
or
combined
pre-treatment
methods
WAS
can
be
used.
These
substantially
reduce
volatile
suspended
solids
(VSSs)
and
their
associated
total
chemical
oxygen
demand
(TCOD).
Pre-treating
will
methane
by
15
to
30%.
Although
have
been
dealt
with
in
research
large-scale
operations,
(hybrid)
not
previously
reviewed.
Here,
different
hybrid
are
reviewed,
including
(1)
thermochemical
hydrolysis
pre-treatment,
using
an
alkaline
acid
addition
enhance
solubilization
cells
production;
(2)
high-pressure
homogenizer
combining
mechanical
treatment;
(3)
ultrasound
capable
solubilizing
organic
compounds
mechanisms,
such
as
fast
effective
disruption
increasing
effect
(NaOH)
(4)
microwave
which
enhances
at
least
20%
comparison
performance
each
separate
process;
(5)
(MW)
peroxidation
(SSs),
quickly
(<5
min)
disintegrated
MW
irradiation
80
°C;
(6)
ozone
peroxides
powerful
oxidizing
agents;
(7)
pulsed
electric
field
(PEF)
pretreatment.
All
literature
findings
assessed,
discussing
relevant
operation
conditions
results
achieved.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2023,
Номер
11(14), С. 5656 - 5664
Опубликована: Март 29, 2023
For
the
beneficial
utilization
of
food
waste
(FW),
valorization
processes
that
output
high-value
products
including
carbon
source
alternatives
for
biological
nutrient
removal,
biochar,
or
refuse-derived
fuels
(RDF)
are
reported
to
be
technically
and
economically
beneficial,
while
climate
change
impact
these
emerging
technologies
is
unclear
lacks
a
benchmark
comparison.
In
this
study,
impacts
six
diverse
scenarios
FW
were
evaluated
through
life
cycle
assessment
compared
with
incineration
anaerobic
digestion
(AD).
Six
all
exhibit
better
benefits
than
(−40.8
kgCO2-eq/t),
hydrolysis
production
coupled
thermal
drying-RDF
scenario
achieves
best
(−276.8
kgCO2-eq/t)
second-best
(−224.2
beyond
AD
digestate
(−149.1
kgCO2-eq/t).
Sensitivity
analysis
implies
total
solid
content
FW,
biodrying
efficiency,
dewatering
energy
efficiency
biomass
power
plants
key
parameters
affecting
global
warming
potential
results.
This
study
provided
data
basis
insight
estimating
relating
decision-making.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Июнь 6, 2024
Given
the
increasing
pressure
on
water
bodies,
it
is
imperative
to
explore
sustainable
methodologies
for
wastewater
treatment
and
reuse.
The
simultaneous
presence
of
multiples
contaminants
in
complex
wastewater,
such
as
liquid
effluents
from
biogas
plants,
can
compromise
biological
effectiveness
reclaiming
water.
Vertical
subsurface
flow
constructed
wetlands
were
established
low-cost
decentralized
technologies
treat
fraction
digestate
municipal
organic
waste
with
metals,
antibiotics,
antibiotic
resistance
genes,
allow
its
reuse
irrigation.
Twelve
lab-scale
planted
assembled
gravel,
light
expanded
clay
aggregate
sand,
testing
four
different
treating
conditions
(liquid
spiked
oxytetracycline,
sulfadiazine,
or
ofloxacin,
at
100
μg/
L,
without
dosing)
during
3
months.
Physicochemical
parameters
(pH,
chemical
oxygen
demand
(COD),
nutrients,
antibiotics),
microbial
communities
dynamics
(through
16S
high-throughput
sequencing)
genes
removal
(qPCR)
monitored
influents
effluents.
Systems
removed
85.8%–96.9%
matter
(as
COD),
over
98.1%
ammonium
phosphate
ions,
69.3%–99.4%
nitrate
nitrite
no
significant
differences
between
absence
antibiotics.
Removal
Fe,
Mn,
Zn,
Cu,
Pb
Cr
exceeded
82%
all
cycles.
also
sulfadiazine
ofloxacin
99%,
decreased
intl1,
tetA,
tetW
,
sul1
qnrS
gene
copies.
Nonetheless,
after
months
dosing,
started
being
detected.
processes
relied
high
HRT
(14
days)
various
mechanisms
including
sorption,
biodegradation,
precipitation.
Microbial
community
diversity
changed
significantly
a
decrease
initial
Firmicutes
dominance,
but
clear
effect
antibiotics
structure.
Removals
above
85%
94%
observed
Streptococcus
Clostridium,
respectively.
Results
suggest
that
vertical
suitable
technology
irrigation
agricultural
systems,
contributing
circular
bioeconomy
concept.
However,
more
profound
understanding
effective
strategies
needed
avoid
dissemination.
