Waste Management & Research The Journal for a Sustainable Circular Economy,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 29, 2024
Zimbabwe's
tourism
industry,
renowned
for
its
natural
wonders
and
cultural
heritage,
faces
a
looming
energy
crisis
rooted
in
the
detrimental
over-reliance
on
fossil
fuels
underutilization
of
substantial
waste
resources
that
lie
dormant.
The
article
investigates
multifaceted
relationship
between
six
independent
variables:
landfill
gas
recovery
anaerobic
digestion,
pyrolysis
gasification,
incineration,
biogas
production,
biodiesel
ethanol
production
syngas
fermentation
one
dependent
variable:
development
sustainability.
In
this
study,
quantitative
methodology
was
adopted,
involving
gathering
data
from
519
stakeholders
supply
chain
through
simple
random
sampling
technique,
with
sample
size
determined
using
Krejcie
Morgan
table.
distribution
questionnaires
facilitated
Google
Forms,
analysis
conducted
Smart
PLS.
Statistical
findings
indicate
direct
significant
variables,
Recycling,
Год журнала:
2024,
Номер
9(1), С. 19 - 19
Опубликована: Фев. 9, 2024
Second-generation
biorefinery
refers
to
the
production
of
different
types
biofuels,
biomaterials,
and
biochemicals
by
using
agri-based
other
lignocellulosic
biomasses
as
substrates,
which
do
not
compete
with
arable
lands,
water
for
irrigation,
food
supply.
From
perspective
transportation
fuels,
second-generation
bioethanol
plays
a
crucial
role
in
minimizing
dependency
on
fossil-based
especially
gasoline.
Significant
efforts
have
been
invested
research
development
commercialization
both
developing
developed
countries.
However,
countries
like
India,
has
obstructed
despite
abundance
variety
agricultural
feedstocks.
This
commercial
obstruction
was
majorly
attributed
recalcitrance
feedstock,
by-product
management,
marginal
subsidies
compared
nations.
article
reviews
major
roadblocks
viability
India
few
leading
also
biomass
availability,
technological
advancements,
investments,
policies,
scale-up
potential
biorefineries.
A
thorough
discussion
is
made
prospects
barriers
research,
development,
demonstration
well
strengths,
weaknesses,
opportunities,
threats
bioethanol.
Biofuels Bioproducts and Biorefining,
Год журнала:
2024,
Номер
18(6), С. 2196 - 2210
Опубликована: Окт. 9, 2024
Abstract
Recurring
environmental
challenges
and
the
global
energy
crisis
have
led
to
intensified
research
on
alternative
sources.
Hydrogen
has
emerged
as
a
promising
solution,
produced
through
electrochemical,
thermochemical,
biological
methods.
This
study
presents
advantages
disadvantages
of
these
technologies.
It
also
provides
pertinent
data
hydrogen
production,
identifying
world‐leading
countries
in
such
USA,
Japan,
China,
government
policies
that
they
adopted.
reports
market
trends
synthesis
by
water
electrolysis,
high
cost
electrolyzers
used,
incentives
for
carbon
become
competitive
with
other
highlights
startups
from
around
world
are
developing
innovative
methodologies
producing
hydrogen.
The
concludes
integrating
production
concepts
social,
environmental,
industry
interests
is
essential.
Fuels,
Год журнала:
2024,
Номер
5(4), С. 625 - 649
Опубликована: Окт. 4, 2024
The
high
externalized
and
still
partly
unknown
costs
of
fossil
fuels
through
air
pollution
from
combustion,
their
limited
resources
have
caused
mankind
to
(re)turn
renewable
sources
such
as
wind,
solar,
biomass
meet
its
energy
needs.
Converting
synthesis
gas
is
advantageous
since
it
can
utilize
a
wide
variety
(waste)
feedstocks
obtain
an
energetic
versatile
product
at
low
cost
in
large
quantities.
Gasification
no
new
technology;
yet
recent
years,
gasification
has
attracted
significant
attention.
Due
the
non-depletable
nature
agricultural
waste
similar
side
streams,
which
little
value
bring
environmental
problems
when
mismanaged
methane
emissions,
possible
cheap
electrical
or
thermal
produced
with
efficiencies.
Combined
heat
power
(CHP)
preferred
use
case,
recently
focus
moved
polygeneration,
e.g.,
make
value-added
products
gas.
Fischer–Tropsch
coal-derived
syngas
now
being
complemented
by
fermentation
biobased
gas,
where
microorganisms
yield
materials
CO/H2
(and
CO2)
anaerobic
process
CH4/O2
aerobic
process.
Syngas
methanation
offers
alternative
route
produce
synthetic
natural
(SNG,
bio-SNG)
additional
feedstock
for
fermentation.
Materials
made
are
decoupled
primary
operations
do
not
compete
feed
food
production.
ample
raw
material
base
gasification,
basically
be
all
kinds
mostly
dry
biomass,
including
municipal
solid
(MSW),
syngas-derived
highly
scalable.
Amongst
them
bioplastics,
biofuels,
building
blocks,
single-cell
protein
(SCP)
food.
This
article
reviews
state-of-the-art
spotlight
on
sustainable
production
high-volume
materials.
