A Review on the Carbonation of Steel Slag: Properties, Mechanism, and Application
Materials,
Год журнала:
2024,
Номер
17(9), С. 2066 - 2066
Опубликована: Апрель 28, 2024
Steel
slag
is
a
by-product
of
the
steel
industry
and
usually
contains
high
amount
f-CaO
f-MgO,
which
will
result
in
serious
soundness
problems
once
used
as
binding
material
and/or
aggregates.
To
relieve
this
negative
effect,
carbonation
treatment
was
believed
to
be
one
available
reliable
methods.
By
slag,
phases
f-MgO
can
effectively
transformed
into
CaCO3
MgCO3,
respectively.
This
not
only
reduce
expansive
risk
improve
utilization
further
but
also
capture
store
CO2
due
mineralization
process
carbon
emissions.
In
study,
based
on
physical
chemical
properties
mechanism,
factors
affecting
process,
application
carbonated
were
reviewed.
Eventually,
research
challenge
discussed.
Язык: Английский
An effective strategy for preparing fluxed metallized pellets from converter slag: Synergistic mechanism and consolidation behavior
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116188 - 116188
Опубликована: Март 1, 2025
Язык: Английский
Ecotoxicological Study of Tannic Acid on Soil and Water Non-Target Indicators and Its Impact on Fluvial and Edaphic Communities
Plants,
Год журнала:
2023,
Номер
12(23), С. 4041 - 4041
Опубликована: Ноя. 30, 2023
Tannic
acid
(TA)
is
a
key
tannin
extensively
used
in
the
leather
industry,
contributing
to
around
90%
of
global
production.
This
practice
leads
generation
highly
polluting
effluents,
causing
environmental
harm
aquatic
ecosystems.
Additionally,
tannins
like
TA
degrade
slowly
under
natural
conditions.
Despite
efforts
reduce
pollutant
limited
attention
has
been
devoted
direct
impact
tannins.
Moreover,
garnered
increased
mainly
due
its
applications
as
an
antibacterial
agent
and
anti-carcinogenic
compound.
However,
our
understanding
ecotoxicological
effects
remains
incomplete.
study
addresses
this
knowledge
gap
by
assessing
ecotoxicity
on
non-target
indicator
organisms
both
water
(Vibrio
fischeri,
Daphnia
magna)
soil
environments
(Eisenia
foetida,
Allium
cepa),
well
fluvial
edaphic
communities,
including
periphyton.
Our
findings
offer
valuable
insights
into
TA's
across
various
trophic
levels,
underscoring
need
for
more
comprehensive
investigations
complex
results
demonstrate
that
exhibits
towards
specific
organisms,
particularly
V.
fischeri
D.
magna,
phytotoxicity
A.
cepa.
The
severity
these
varies,
with
being
most
sensitive,
followed
magna
soil-dwelling
invertebrate
E.
foetida
shows
resistance
tested
concentrations.
Furthermore,
research
reveals
substantial
concentrations
are
required
growth
river
microbial
communities.
Metabolic
changes,
amino
amine
metabolism,
observed
at
lower
Notably,
photosynthetic
yield
periphyton
unaffected,
even
higher
In
contrast,
communities
exhibit
greater
sensitivity,
significant
alterations
population
metabolic
profiles
very
low
concentration
0.2
mg/L
all
metabolites.
summary,
offers
terrestrial
environments.
It
underscores
importance
considering
variety
when
implications
Язык: Английский
Ecotoxicological assessment of waste foundry sands and the application of different classification systems
Integrated Environmental Assessment and Management,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 30, 2024
The
application
of
a
battery
bioassays
is
widely
recognized
as
useful
tool
for
assessing
environmental
hazard
samples.
However,
the
integration
different
toxicity
data
key
aspect
this
assessment
and
remains
challenge.
evaluation
industrial
waste
leachates
did
not
initially
undergo
any
proposed
procedures.
This
research
addressed
knowledge
gap.
Twenty-five
samples
foundry
sands
were
subjected
to
leaching
test
(UNI
EN
12457-2)
evaluate
recovery
landfill
disposal.
evaluated
using
standardized
composed
Aliivibrio
fischeri
(EN
ISO
11348-3),
Daphnia
magna
6341),
Pseudokirchneriella
subcapitata
8692),
both
undiluted
diluted.
P.
most
affected
organisms,
with
significant
effects
caused
by
68%
64%
samples,
respectively.
dilution
facilitates
calculation
EC50
values,
which
ranged
from
greater
than
highest
concentration
tested
2.5
g/L
subcapitata.
on
single-organism
integrated
three
methods:
Toxicity
Classification
System,
index,
EcoScore
system.
classifications
strongly
similar.
According
all
applied
systems,
clearly
nontoxic
(from
iron
casting
plants)
two
highly
toxic
steel
plants).
Moreover,
similar
ranking
between
diluted
suggests
possibility
only
more
cost-effective
time-efficient
screening
materials.
findings
study
highlight
usefulness
integrating
ecotoxicological
assessment.
Integr
Environ
Assess
Manag
2024;00:1-18.
©
2024
Author(s).
Integrated
Environmental
Assessment
Management
published
Wiley
Periodicals
LLC
behalf
Society
Toxicology
&
Chemistry
(SETAC).
Язык: Английский
Evaluation of Toxicity and Genotoxicity of Concrete Cast with Steel Slags Using Higher Terrestrial Plants
Environmental Toxicology and Chemistry,
Год журнала:
2023,
Номер
42(10), С. 2193 - 2200
Опубликована: Июль 4, 2023
The
potential
impact
of
concrete
mixtures
containing
steel
slag
(SS)
as
a
partial
replacement
natural
aggregates
(NA)
on
the
terrestrial
ecosystem
was
assessed
using
battery
plant-based
bioassays.
Leaching
tests
were
conducted
four
and
one
mixture
only
NA
(reference
concrete).
Leachates
tested
for
phytotoxicity
seeds
Lepidium
sativum,
Cucumis
sativus,
Allium
cepa.
Emerging
seedlings
L.
sativum
A.
cepa
used
to
assess
DNA
damage
(comet
test).
genotoxicity
leachates
also
analyzed
with
bulbs
comet
chromosome
aberration
tests.
None
samples
caused
phytotoxic
effects.
On
contrary,
almost
all
supported
seedlings;
two
leachates,
from
SS-containing
other
reference
concrete,
promoted
growth
C.
sativus
significantly
increased
by
sample.
In
contrast,
in
enhanced
but
that
sample
SS.
Furthermore,
an
increase
chromosomal
aberrations
bulbs.
Despite
some
genotoxic
effects
plant
cells,
SS
does
not
seem
make
more
hazardous
than
suggesting
use
reliable
recycled
material.
Environ
Toxicol
Chem
2023;42:2193-2200.
©
2023
Authors.
Environmental
Toxicology
Chemistry
published
Wiley
Periodicals
LLC
behalf
SETAC.
Язык: Английский
Development of binders based on the СаО–Fe2O3 system
В Н Деревянко,
Hanna Hryshko,
Denis Smolin
и другие.
Eastern-European Journal of Enterprise Technologies,
Год журнала:
2024,
Номер
4(6 (130)), С. 49 - 58
Опубликована: Авг. 30, 2024
The
object
of
research
is
the
processes
structure
formation
and
modeling
properties
a
specialized
binder.
development
new
binding
materials
based
on
production
waste
with
high
early
strength
indicators
could
make
it
possible
to
speed
up
construction
period
one
urgent
tasks
at
present.
This
study
focused
creation
binders
СаО–Fe2O3
system.
developed
binder
system
has
following
composition:
limestone
–
26
%;
red
slime
74
%,
which
dense
fine-porous
22.5
MPa
density
1960
kg/m3.
There
also
an
increase
in
average
samples
annealed
temperature
1200
℃
for
60
minutes,
ground
mixed
water,
comparison
fired
1100
by
500
kg/m3,
due
formations.
prospect
using
modified
composite
special
functional
been
substantiated.
use
СаО-Fe2O3
obtain
physical
mechanical
properties,
makes
them
promising
application
various
areas
industry.
such
will
help
reduce
environmental
impact
industry,
owing
affordable
effective
components.
approach
not
only
contribute
improvement
quality
building
but
ecological
burden
environment
alternative
resources
industrial
waste.
be
used
solutions
3d
printing,
as
well
repair
concrete
coatings
Язык: Английский