A
agropecuária
brasileira
está
entre
as
maiores
do
mundo,
com
destaque
na
produção
de
proteínas
e
grãos.
Para
o
tratamento
dos
resíduos
orgânicos
oriundos
dessa
enorme
é
necessário
adequar
técnicas
produtivas
brasileiras
para
atendimento
também
da
legislação
ambiental.
Nesse
sentido,
a
digestão
anaeróbia
atualmen
te
uma
das
opções
mais
consolidadas
no
Brasil
apresenta
oportunidades
diante
outras
técnicas,
como
compostagem
biogás.
Este
biocombustível
pode
ser
purificado
biometano
ou
permitir
geração
hidrogênio
verde,
que
promover
diversas
ao
planejamento
energético
brasileiro.
Essas
impactos
decorrentes
utilização
fontes
renováveis
energia
podem
internalizadas
em
análises
econômicas
aprofundadas
englobam
externalidades
en
volvidas.
Na
literatura,
apesar
reconhecidas,
biogás
são
pouco
exploradas,
especial
relação
à
quantificação
econômica.
Nesta
pesquisa
foi
proposta
metodologia
série
relacionadas
elétrica
por
meio
queima
O
valor
econômico
conjunto
superar,
alguns
casos,
gerada
esse
combustível.
Avaliou
-se
também,
comparativamente,
sistemas
fotovoltaicos,
demonstrando
superam
fotovoltaicos.
valiosas
constatações
reforçam
importância
aprimoramento
políticas
públicas
incentivo
às
um
todo.
Atualmente,
Brasil,
incentiva-se
igualmente
distribuída
renováveis,
única
tarifa
net
metering.
Como
forma
impulsionar
crescimento
país,
avaliaram-se,
simulação,
automatizada
aspectos
econômicos
implementação
aquecimento
revolvimento
diferentes
espessuras
isolamento
biodigestores
tipo
lagoa
coberta.
Os
resultados
simulação
indicaram
biodigestor
instalado
Zona
Mata
mineira,
latitude
20°
34’
07,2’’
S,
possível
aumentar
até
cerca
12%.
Concluiu-se
que,
climas
frios
local
estudado,
viabilidade
econômica
simulados
10
vezes
maior.
Tendo
vista
ambientais
positivas
pequena
exploração
seu
potencial
produção,
avaliaram-se
rotas
seus
derivados
e,
ou,
verde
partir
pecuária,
vegetal
saneamento
urbano.
Essa
avaliação
apontou
brasileiro
seria
suficiente
substituir
metade
demanda
combustíveis
não
setor
transportes
atualmente
maior
energética.
Assim,
nesta
foram
evidenciados
renovabilidade
energética
sua
matriz,
uso
intensivo
verde.
Palavras-chave:
Biodigestão.
Energia
renovável.
Planejamento
energético.
Hidrogênio
Automação.
Emerging
valorization
routes
are
urgently
needed
for
managing
the
huge
amount
swine
manure
(SM)
from
large-scale
piggery
in
China.
Although
diverse
benefits
production
and
application
of
biochar
has
been
well-recognized,
there
is
still
a
knowledge
gap
regarding
economic
feasibility
SM
production,
which
hinders
practical
implementation
Herein,
was
simulated
via
Aspen
Plus,
techno-economical
model
applied
to
calculate
net
present
value
(NPV),
internal
rate
return
(IRR),
discounted
payback
period
(DPP)
with
processing
capacity
8000
tons
per
year.
Results
suggest
that
selling
price
operating
costs
have
significant
impacts
on
project.
When
below
840
yuan/ton,
NPV
becomes
negative,
rendering
project
unprofitable.
However,
when
increase
by
20%,
results
indicate
remains
profitable.
decreases
1120
IRR
only
14%,
demonstrating
this
not
suitable
investment.
The
DPP
analyses
show
investment
4.6
years,
profitability
fifth
year,
proving
its
high
resilience
risk.
Moreover,
compared
conventional
treatment
routes,
into
China
shorter
period,
worthiness
Piggery
wastewater
generation
has
become
an
environmental
problem
which
must
be
solved
by
managing
the
residue
through
appropriate
treatment.One
promising
technology
is
use
of
photobioreactors
where
microalgae
and
bacteria
act
symbiotically
to
remove
nutrients,
allows
reduce
costs
in
treatment
production
using
as
culture
media.In
this
process,
a
valuable
biomass
generated
that
can
used
produce
several
components
bioproducts.However,
most
algal
such
proteins
carbohydrates
are
found
within
cell
wall
should
disrupted
extract
them
trying
cause
low
degradation
solubilized
considering
presence
pollutants.So,
thesis
focusses
on
valorization
grown
piggery
different
technologies.Likewise,
economic
viability
some
proposed
processes
was
studied.Techno-economic
analysis
show
agricultural
products
sustainably
produced
from
wastewater.The
method
harvesting
resulted
critical
point
obtaining
4.5
times
more
concentrated
biostimulant
with
centrifugation
than
membranes.However,
centrifuges
led
great
expense
due
high
cost
equipment
its
electricity
requirements,
resulting
final
343
€/m
3
vs
66
membranes.Comparing
1ha
crop,
centrifuge
or
membrane
lower
commercial
product
(22.1%
48.1%
respectively).The
membranes
for
allowed
construction
economically
viable
plants
capable
operating
at
capacity
distributing
biostimulants
over
greater
distances
centrifuges.A
life
cycle
assessment
showed
30%
impact
(global
warming
(GW)
217
kg
CO2
eq/ha)
instead
centrifugation.The
amount
required
crops
when
used,
also
relevant
transportation,
being
favourable
distance
321
km.As
alternative,
extraction
biopesticides
before
evaluated.The
calculated
were
0.35
€/L
2.12€/L
centrifuge,
but
higher
inversion
complex
process
producing
only
biostimulants.
With
the
rapid
development
of
livestock
and
poultry
breeding,
number
scale
breeding
are
increasing,
providing
a
lot
meat,
eggs,
milk
other
products,
but
also
producing
large
manure
pollution.
Livestock
is
rich
in
organic
matter,
nitrogen,
phosphorus,
potassium
nutritional
components,
through
processing
can
eliminate
toxic
harmful
substances,
into
fertilizers.
However,
many
on-site
environment
treatment
poor,
which
not
conducive
to
health
operators.
Therefore,
this
paper
develops
an
integrated
intelligent
control
system
realize
remote
automatic
improve
capacity.
Journal of Energy and Power Technology,
Journal Year:
2023,
Volume and Issue:
05(01)
Published: Jan. 3, 2023
This
research
aims
to
know
the
effect
of
Rotor
Radius
Ratio
on
performance
hybrid
Vertical
Axis
Wind
Turbine
Savonius-Darrieus
NREL
S809
model
using
Computational
Fluid
Dynamics
method.Two-bladed
Savonius
is
used
as
an
internal
rotor,
and
three-bladed
Darrieus
external
rotor.Turbine
analyzed
through
value
Moment
Coefficient
Power
Coefficient.The
result
shows
that
increase
in
causes
initial
but
a
decrease
maximum
value.At
TSR,
0.5
has
best
among
all
variations
lowest
value.
Journal of Energy and Power Technology,
Journal Year:
2023,
Volume and Issue:
05(01), P. 1 - 32
Published: March 22, 2023
The
increasing
number
of
biogas
plants
with
various
digested
organic
materials
and
output
digestates
calls
for
more
detailed
investigations
their
suitability
as
soil
amendments.
In
a
trial
in
Northern
Germany
two
replicate
plots
each
were
treated
fresh
or
prolonged
fermented
digestate
to
investigate
the
influence
on
composition
matter
(SOM).
relative
proportions
relevant
SOM
compound
classes
determined
by
pyrolysis-field
ionization
mass
spectrometry
(Py-FIMS)
pyrolysis-gas
chromatography/mass
(Py-GC/MS).
Using
these
methods
was
illustrated
statistical
spectra
evaluation
principal
component
analysis.
both
digestate-treated
plots,
slowly
degradable
alkylaromatic
compounds
lipids
larger.
contrast,
easily
carbohydrates
amides
mostly
heterocyclic
N-compounds
less
than
control
plots.
However,
differences
due
pronounced
autochthonous
one
treatments
N-
abundant
aggregate
core
surface.
aliphatic
surface
disclosed
Py-FI
chromatography-mass
conclusion,
amounts
should
be
critically
monitored
according
different
feedstock,
types,
ecological
factors
crop
growth/yield.
En
las
páginas
que
siguen,
los
invitamos
a
sumergirse
en
un
fascinante
viaje
través
del
esfuerzo
y
la
dedicación
de
veinte
jóvenes
investigadores
Departamento
Sucre.
Este
libro
trasciende
mera
recopilación
sus
experiencias,
es
testimonio
su
inquebrantable
compromiso
con
el
conocimiento
incansable
búsqueda
respuestas
mundo
lleno
incertidumbre
desafíos.A
lo
largo
año
intenso
entrenamiento,
como
parte
proyecto
“Desarrollo
capacidades
habilidades
investigación,
desarrollo
tecnológico
e
innovación
profesionales
Sucre”,
becas-pasantías
valientes
departamento
fueron
guiados
mano
experta
destacados.
Estos
maestros
acompañaron
para
convertir
pasión
por
ciencia
vehículo
cambio
progreso
nuestra
comunidad.
