In
the
present
study,
press
mud
(PM),
a
major
waste
by-product
from
sugar
industries,
was
subjected
to
hydrothermal
pretreatment
(HTP)
create
resource
recovery
opportunities.
The
HTP
process
performed
with
PM
samples
in
laboratory
scale
high
pressure
batch
reactor
(capacity
=
0.7
L)
at
160°C
and
200°C
temperatures
(solids
content
5%
30%).
resulted
separation
of
solid
liquid
phases
which
are
termed
as
hydrochar
(HC)
water
(PW),
respectively.
High
heating
value
(HHV)
HC
~16-18
MJ
kg₋1,
slightly
higher
than
that
(14
kg₋1).
thermogravimetric
analysis
showed
about
1.5-1.7
times
heat
release
burning
compared
observed
combustion
PM.
Apart
this,
no
phytotoxicity
during
germination
mung
bean
(Vigna
radiata).
Moreover,
biochemical
methane
potential
test
on
PW
generation
167-245
mL
biogas
per
gram
chemical
oxygen
demand
added.
Hence,
offers
several
opportunities
may
also
reduce
risks
environmental
degradation.
Renewable Energy,
Год журнала:
2024,
Номер
227, С. 120547 - 120547
Опубликована: Апрель 22, 2024
The
hydrothermal
co-carbonization
of
sewage
sludge
and
organic
additives,
namely
10
20%
charcoal,
fir,
grass,
an
undersieved
fraction
municipal
solid
waste,
was
studied.
benefits
this
combined
process
included
the
spectacular
dewaterability
performance
slurry,
proved
by
positive
filtration
tests
shorter
capillary
suction
times.
For
instance,
a
fir
addition
decreased
c.a.
60%
pressure
time
when
compared
to
carbonization
sludge.
A
10%
waste
resulted
in
15.72
s
time.
Moreover,
produced
effective
energy
sources.
origin
prior
caused
higher
heating
values,
carbon
fixed
contents
hydrochars
(e.g.
charcoal
generated
21%
value,
30%
2.8
times
carbon),
which
corresponded
with
easier
more
stable
combustion
processes
hydrochar
from
determined
thermal
analysis.
Possible
exploitation
problems
during
have
been
assessed
determining
tendency
risks
slagging
fouling
based
on
oxides
identified
ash
XRF
Furthermore,
changes
structural
morphological
properties
were
SEM
FTIR
analyses.
