BIO Web of Conferences,
Journal Year:
2025,
Volume and Issue:
157, P. 03006 - 03006
Published: Jan. 1, 2025
Laboratory
wastewater
contains
organic
and
inorganic
pollutants
that
can
pollute
the
environment
if
not
treated
well.
This
study
uses
a
coagulation-flocculation
process
to
determine
proper
operational
condition
for
laboratory
treatment
in
Environmental
Engineering
Department
of
Institut
Teknologi
Sepuluh
Nopember
(ITS).
The
fluctuation
quality
quantity
was
observed
consecutively
two
weeks.
Aluminum
sulfate,
poly
aluminum
chloride,
ferric
chloride
coagulant
were
applied
with
pH
variation,
namely
6,
7,
8,
variation
dosage,
100,
300,
500
mg/L.
produced
is
range
918.33-32,045
L/day.
Meanwhile,
wastewater,
it
has
6.23-8.79,
TDS
260-788
mg/L,
TSS
40-380
COD
97-611.7
Cr0.0174-0.2053
Fe
0.29-7.55
Hg
0-0.0000392
Pb
0-0.084
results
this
showed
optimum
using
PAC
coagulant,
original
being
6
concentration
300
In
treatment,
removal
efficiency
TDS,
TSS,
7.07%,
92.59%,
27.45%,
respectively.
Biofuels Bioproducts and Biorefining,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
Abstract
In
recent
years
there
has
been
a
growing
interest
in
biochar
as
an
efficient
adsorbent
for
heavy
metal
wastewater
treatment
because
of
its
unique
physicochemical
properties
and
broad
applicability.
Biochar,
produced
through
the
pyrolysis
waste
biomass,
exhibits
well
developed
pore
structure,
high
specific
surface
area,
abundant
functional
groups,
which
collectively
confer
capacity
adsorption
metals.
This
review
summarizes
current
state
knowledge
on
preparation
methods,
properties,
mechanisms
removal.
It
highlights
impact
characteristics
such
pore‐size
distribution,
temperature,
performance.
also
examines
influence
solution
conditions,
including
pH,
ionic
strength,
adsorption.
The
explores
synergistic
effects
with
other
technologies,
anaerobic
digestion
membrane
technology,
to
enhance
efficiency.
Despite
significant
progress,
challenges
remain
optimizing
capacity,
regeneration,
recycling.
study
provides
comprehensive
insights
into
potential
limitations
treatment;
it
identifies
gaps
outlines
future
research
directions.
By
elucidating
relationship
between
performance
removal,
aim
this
is
guide
selection
appropriate
various
applications.
