Geomatics,
Journal Year:
2024,
Volume and Issue:
4(4), P. 384 - 411
Published: Nov. 6, 2024
Dairy
production
is
one
of
the
most
important
economic
sectors
in
Bangladesh.
However,
traditional
management
dairy
cow
manure
and
other
wastes
results
air
pollution,
eutrophication
surface
water,
soil
contamination,
highlighting
urgent
need
for
more
sustainable
waste
solutions.
To
address
environmental
problems
management,
this
research
explored
potential
community-based
biogas
from
This
study
proposed
introducing
plants
using
a
geographic
information
system
(GIS).
The
first
applied
restriction
analysis
to
identify
sensitive
areas,
followed
by
suitability
determine
feasible
locations
plants,
considering
geographical,
social,
economic,
factors.
final
suitable
areas
were
identified
combining
maps.
spatial
distribution
farms
was
analyzed
through
cluster
analysis,
identifying
significant
clusters
production.
A
baseline
scenario
designed
five
based
on
input
output
capacities
estimating
location
capacity
each
cluster.
also
calculated
electricity
generation
net
greenhouse
gas
(GHG)
emissions
reduction
plants.
findings
provide
land-use
framework
implementing
that
considers
socio-economic
criteria.
Five
found
be
technically
spatially
generation.
These
can
collectively
produce
31
million
m3
annually,
generating
approximately
200.60
GWh
energy
with
total
9.8
MW/year
Implementing
these
expected
increase
renewable
at
least
1.25%.
Furthermore,
GHG
emission
estimated
104.26
Gg/year
CO2eq
annual
treatment
61.38
thousand
tons
manure.
Heliyon,
Journal Year:
2025,
Volume and Issue:
11(2), P. e42068 - e42068
Published: Jan. 1, 2025
Biogas
is
becoming
increasingly
important
as
a
renewable
energy
source
in
the
face
of
global
warming
and
declining
fossil
fuel
reserves.
produced
by
anaerobic
digestion
organic
materials
which
can
be
available
from
various
wastes
such
agro-industrial,
human,
fruit
waste,
distillery,
animal
waste
aquatic
plants.
This
study
deals
particularly
with
comparative
potential
biogas
production
vegetable
their
mixtures
(digestion).
The
used
feed
this
research
were
distillery
dark-colored
liquid
Desta
Alcohol
Liquor
Factory
Private
Limited
Company.
Fruit
banana
peels,
papaya,
mango,
tomato,
avocado,
cabbage
leaves,
watermelon
skin,
orange
skin
collected
juice
houses
wholesale
markets
Mekelle
City,
Cow
manure
buffer
solution,
PLC.
Waste
samples
characterized
for
total
solids,
volatile
pH,
biochemical
oxygen
demand,
chemical
demand
according
to
established
standards.
was
analyzed
using
analyzer,
an
ORSAT
apparatus
CO2,
TUTWILER
H2S.
Finally,
%CH4
calculated
100
%
ignoring
other
gases.
maximum
all
observed
at
37
°C.
Mixture
(co-digestion)
high
litter
(L):
6.95,
9.47
9.54
20
°C,
°C
50
respectively.
methane
composition
co-digestion
(M)
(%)
67,
70
70.3
Methane
yield
both
temperature
substrates
(waste).
Comparatively,
mixture(digestion);
0.032,
0.061
0.079
L
per
gram
solids
(LCH4/gVS)
Energies,
Journal Year:
2025,
Volume and Issue:
18(3), P. 730 - 730
Published: Feb. 5, 2025
Addressing
the
agricultural
challenges
of
agri-food
waste
accumulation,
this
study
assessed
energy
potential
green
residues
from
tomato
(Solanum
lycopersicum
L.
cv.
Kmicic)
plants
in
different
fertilizer
configurations
and
Shea
nutshell
(Vitellaria
paradoxa)
waste.
Two
key
parameters
were
compared:
(I)
Calorific
Value
(CV),
representing
thermal
treatment,
(II)
Biogas
Biomethane
production
potential,
biochemical
treatment.
Potential
was
estimated
using
Baserga
method
fermentable
organic
matter
(FOM)
method.
Additionally,
effect
fertilization
on
elemental
composition
its
analyzed.
showed
better
properties
for
both
utilization,
with
a
CV
16.29
MJ/kg.
The
FOM
methods
estimation
that
highest
yields
504.18
671.39
LN/kg
DM,
respectively.
Among
fertilized
residues,
volcanic
tuff
additive
resulted
an
optimal
C/N
ratio
(28.41)
high
457.13
DM
(Baserga)
542.85
(FOM).
These
findings
demonstrate
feasibility
employing
as
promising
feedstock
production.
IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
Hydropower
is
the
oldest
source
of
renewable
mechanical
power
and
largest
electricity
globally
accounting
for
close
to
17%
global
generation
although
its
share
contribution
has
been
diminishing
gradually.
a
mature,
reliable,
predictable,
socially
economically
competitive
with
high
efficiencies
greater
than
90%
in
terms
water
wire
conversion.
There
are
different
types
hydropower
plants
based
on
criteria
like
size,
application,
use
storage.
Based
size
they
can
be
o
micro,
mini,
small,
or
large
plants,
while
storage,
either
dam
reservoir
run-of-river
stations.
Different
hydraulic
turbines
including
Pelton,
Francis,
Propeller
turbine
used
generation.
Hydroelectric
have
environmental
impacts
that
should
considered
mitigated
before
development.
The
benefits
include
low
unit
cost,
emissions,
ease
control,
However,
hydro
challenges
large-land
requirements
soil
erosion,
ecosystem
disturbance,
seasonal
variability.
It
technically
feasible
combine
wind,
solar,
other
sources
develop
steady
affordable
grid
mix.
storage
additional
flood
supply
industrial
domestic
use,
production
sustainable
flexibility
cost
power.
generally
higher
initial
investment
but
their
long
life
span
lower
operation
maintenance
make
option
green
IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 27, 2025
Methanogens,
unique
microorganisms
within
the
archaea
domain,
produce
methane
as
a
byproduct
of
methanogenesis,
crucial
process
in
global
carbon
cycle.
Thriving
anaerobic
environments
such
wetlands,
landfills,
and
ruminant
guts,
these
hold
tremendous
potential
for
renewable
energy
environmental
sustainability.
This
chapter
explores
innovative
applications
methanogens,
including
their
pivotal
role
biogas
production,
digestion,
biofuel
development,
advanced
waste
treatment.
By
leveraging
metabolic
versatility
engineering
capabilities,
methanogens
can
address
pressing
challenges
security
neutrality.
provides
insights
into
pathways,
optimization,
integration
circular
economy
models
hybrid
systems.
Through
case
studies,
cutting-edge
research,
emerging
technologies,
this
work
underscores
transformative
biotechnological
industrial
applications.
The
discussion
also
highlights
challenges,
slow
growth
rates
sensitivities,
while
proposing
solutions
scaling
methanogen-based
overview
serves
valuable
resource
researchers,
policymakers,
industry
stakeholders
pursuing
methods
management,
capture.
