The
aim
of
this
study
is
to
appraise
raffia
palm
trunk
(RPT)
biochar
prepared
with
different
temperatures
on
sorption
urban
leachate.
Biochar
used
in
was
produced
from
RPT
at
three
(350
°C,
550
°C
and
750
°C)
while
leachate
collected
two
wastes
dump
locations
Warri,
Delta
State,
Nigeria
using
standard
procedure.
pH
level
before
treatment
found
be
acidic
the
dissolve
oxygen
(DO)
very
low.
Leachate
RPT-derived
elevated
region
alkaline
received
a
decrease.
Total
solid
(TDS)
increase
after
treatment.
Interactions
also
decline
concentration
nitrate
phosphate.
COD
(chemical
demand)
BOD
(biochemical
remediation
were
above
recommended
range
set
by
EPA.
decrease
as
pyrolysis
increases.
contact
revealed
Poisonous
metals
temperature
increases
350
°C.
Therefore,
research
has
shown
that
green
sustainable
displayed
remarkable
reduction
over
75%
non-degradable
contaminants,
poisonous
37%
biodegradable
organic
contaminants
dumpsites
Energies,
Год журнала:
2024,
Номер
17(18), С. 4674 - 4674
Опубликована: Сен. 20, 2024
Heavy
metal
pollution
is
posing
significant
threats
to
the
environment
and
human
health.
Engineered
biochar,
derived
from
various
biomass
sources
through
thermochemical
processes,
has
emerged
as
a
promising
solution
for
pollutant
remediation
recovery.
This
review
explores
latest
advancements
in
preparation,
characterization,
application
of
engineered
biochar
adsorption,
recycling,
utilization.
It
begins
by
discussing
significance
adsorption
providing
an
overview
properties.
The
examines
preparation
characterization
techniques,
emphasizing
feedstock
selection,
conversion
methods,
surface
modifications.
Mechanisms
such
physical
chemical
ion
exchange,
complexation,
are
critically
discussed.
Moreover,
factors
influencing
capacity,
including
properties,
characteristics,
environmental
conditions,
analyzed.
efficacy
adsorbing
specific
metals,
heavy
transition
rare
earth
elements,
reviewed
with
recent
studies
key
findings.
Furthermore,
recycling
regeneration
metal-loaded
discussed,
focusing
on
repurposed
techniques
alongside
challenges
economic
considerations.
Finally,
future
perspectives
provided
enlightening
research.
unique
addressing
potential
metal-adsorbed
novel
precursor
produce
catalytical
electrochemical
materials.
Environmental Science and Pollution Research,
Год журнала:
2024,
Номер
31(50), С. 59659 - 59680
Опубликована: Окт. 1, 2024
Abstract
Discharge
of
acidic
wastewater
from
mining
activities
(acid
mine
drainage
(AMD))
is
a
major
global
environmental
and
public
health
issue.
Although
several
approaches,
including
chemical
precipitation
membrane
technology,
have
been
developed
to
treat
AMD,
adsorption
has
emerged
as
the
most
promising
technology
due
its
cost-effectiveness
efficacy.
Despite
wide
adoption
in
treating
evolution
research
this
area
remains
poorly
understood.
To
address
gap,
bibliometric
analysis
recent
literature
involving
application
AMD
remediation
was
conducted
by
merging
datasets
articles
Scopus
(1127)
Web
Science
Core
Collection
(1422),
over
past
decade
(2013–2022).
This
revealed
yearly
increase
11%
publications,
primarily
contributed
China,
United
States,
South
Africa.
Keyword
that
natural
schwertmannites
their
transformations,
activated
carbon,
zeolites,
clay
minerals,
are
extensively
employed
adsorbents
for
removal
common
metals
(arsenic,
chromium,
iron,
manganese,
among
others).
The
findings
underscore
need
future
focuses
on
recovering
rare
earth
elements,
using
nanoparticles
modified
materials,
pursuing
low-cost,
sustainable
solutions,
integrating
hybrid
technologies,
pilot-scale
studies,
exploring
circular
economic
applications
sludges,
inter-continental
collaborations.
These
insights
hold
significant
implications,
serving
valuable
reference
stakeholders
industry.
