Separations,
Journal Year:
2023,
Volume and Issue:
10(11), P. 568 - 568
Published: Nov. 14, 2023
In
this
study,
Iron–Carbon
Micro-Electrolysis
(ICME),
Fenton
oxidation,
and
their
combination
were
investigated
to
treat
the
leachate
obtained
from
a
wastewater
treatment
plant
located
in
southern
China.
The
results
show
that
Fenton-ICME
process
was
most
efficient
one.
After
treated
with
process,
COD
concentration
reduced
initial
35,772
mg/L
13,522
mg/L,
removal
efficiency
up
62.2%.
addition,
biological
oxygen
demand
(BOD)
ratio
increased
by
40%
at
optimal
conditions.
This
suggests
biodegradability
of
has
been
increased,
facilitating
biodegradation
after
it
is
mixed
raw
wastewater.
By
studying
characteristic
variation
found
combined
mainly
removes
organic
compounds
such
as
aromatic
compounds,
ketones,
aldehydes.
separated
sludge
does
not
have
crystalline
structure,
iron
exists
form
trivalent
iron.
It
reveals
great
potential
be
used
pretreatment
leachate.
Water Environment Research,
Journal Year:
2024,
Volume and Issue:
96(6)
Published: June 1, 2024
Abstract
This
study
aims
to
improve
COD,
NH
3
‐N,
and
turbidity
removal
from
Bingöl's
leachate
using
a
single‐reactor
integrated
electrocoagulation
(EC)–coal‐based
powdered
activated
carbon
(CBPAC)
process
under
various
experimental
conditions.
In
the
EC‐CBPAC
process,
three
stainless‐steel
cathodes
aluminum
electrodes
were
connected
negative
positive
terminals
of
power
supply,
respectively.
The
initial
concentrations
in
1044
mg
O
2
/L
for
204
mg/L
57
NTU
(or
71.25‐mg
(NH
)2H
SO
4
/L)
turbidity,
After
40‐min
with
CBPAC
dosage
5
g/L
pH
COD
9.5
optimum
efficiencies
achieved
at
92%,
40%,
91%,
When
EC
was
applied
without
same
conditions,
87%,
28%,
54%,
Before
after
Brunauer–Emmett–Teller
(BET)
surface
area,
pore
volume,
mean
diameter
found
be
(888
m
/g,
0.498
cm
22.28
Å)
(173
0.18
42.8
Å),
pseudo‐first‐order
(PFO)
rate
constants
‐N
determined
3.15
×
10
−2
,
4.77
8.8
−3
min
−1
With
current
density
increasing
15
25
mA/cm
energy
consumption,
unit
total
cost
increased
68.7
122.4
kWh/m
6.948
15.226
kWh/kg
0.85
1.838
$/kg
Practitioner
points
has
greater
efficiency
than
process.
their
disposal
92%
respectively,
most
efficient
observed
40%
9.5.
by
20%,
19%,
38%,
compared
alone.
fitted
PSO
model
due
high
correlation
values
(
R
0.94–0.99).
Separations,
Journal Year:
2023,
Volume and Issue:
10(11), P. 568 - 568
Published: Nov. 14, 2023
In
this
study,
Iron–Carbon
Micro-Electrolysis
(ICME),
Fenton
oxidation,
and
their
combination
were
investigated
to
treat
the
leachate
obtained
from
a
wastewater
treatment
plant
located
in
southern
China.
The
results
show
that
Fenton-ICME
process
was
most
efficient
one.
After
treated
with
process,
COD
concentration
reduced
initial
35,772
mg/L
13,522
mg/L,
removal
efficiency
up
62.2%.
addition,
biological
oxygen
demand
(BOD)
ratio
increased
by
40%
at
optimal
conditions.
This
suggests
biodegradability
of
has
been
increased,
facilitating
biodegradation
after
it
is
mixed
raw
wastewater.
By
studying
characteristic
variation
found
combined
mainly
removes
organic
compounds
such
as
aromatic
compounds,
ketones,
aldehydes.
separated
sludge
does
not
have
crystalline
structure,
iron
exists
form
trivalent
iron.
It
reveals
great
potential
be
used
pretreatment
leachate.
