This
study
was
based
on
an
industrial
sludge
landfill
with
a
scale
of
1
million
cubic
meters,
which
had
been
filled
for
more
than
10
years.
It
focused
the
secondary
dewatering
(LS)
organic
carbon
content
(TOC)
greater
50%
and
VSS/SS
ratio
0.59.
A
Response
Surface
Methodology
(RSM)
model
established
using
coagulant
ferrous
sulfate
(FeSO4)
conditioning
agents
such
as
hydrated
MgO,
blast
furnace
slag
(BFS),
CaO.
By
solving
RSM
equations
respective
indicators,
optimal
dosages
FeSO4,
BFS
were
determined
to
be
90
mg/g
DS,
CaO
174.875
DS.
Further
examinations
performance,
apparent
properties,
EPS
components,
rheological
characteristics,
moisture
distribution,
pollutant
variation
led
development
green
waste-based
agent
composed
FeSO4
BFS.
In
small-scale
plate
frame
tests,
69.11%,
in
final
production-scale
experiments,
it
65.72%,
actual
application
cost
being
only
$13
per
ton
dry
solids.
Additionally,
when
used
together,
combined
action
Fe
Si
could
reduce
biotoxicity
heavy
metals,
cut
down
75.2%
sludge's
TOC,
effectively
leaching
substances
from
leachate,
beneficial
subsequent
disposal.
conclusion,
use
economically
efficient,
effective
dewatering,
significant
harm
reduction
effects,
making
viable
waste
treatment
solution
