Materials,
Journal Year:
2024,
Volume and Issue:
17(24), P. 6266 - 6266
Published: Dec. 21, 2024
The
effectiveness
of
the
stabilisation/solidification
process
depends
upon
a
number
factors,
most
significant
which
are
type
binder,
contaminants,
and
soil
undergoing
treatment.
In
accordance
with
principles
sustainable
construction,
alternatives
to
cement
sought
after,
objective
achieving
lowest
environmental
impact
while
maintaining
high
level
strength
effective
binding
contaminant.
study
zinc-contaminated
loess,
incinerated
sewage
sludge
fly
ash
reactive
magnesia
was
selected
as
UCS
mixtures
microstructure
verified
after
28
days
values
obtained
were
related
reference
sample
exhibited
by
S/S
products
using
Portland
cement.
findings
materials
in
process.
Following
28-day
treatment
30
45%
IFA
MgO
2:1
ratio,
samples
classified
hard
subgrade,
suitable
for
civil
engineering
purposes,
due
achieved,
ranging
from
0.52
0.9
MPa.
Furthermore,
correlation
between
water
content
identified,
mineralogical
composition
determined
use
XRD
technique.
Hydrology,
Journal Year:
2025,
Volume and Issue:
12(1), P. 14 - 14
Published: Jan. 13, 2025
Biocementation
is
an
innovative
and
sustainable
technique
with
wide-ranging
applications
in
slope
stabilization,
watershed
management,
erosion
control.
Despite
its
potential,
comprehensive
evaluations
of
use
hydrology
geotechnical
engineering
are
limited.
This
study
addresses
this
gap
through
a
bibliometric
analysis
685
articles
(2013–2023)
from
the
Scopus
database,
employing
VOSviewer
RStudio
to
explore
global
research
trends,
key
contributors,
emerging
themes.
The
reveals
that
China,
United
States,
Japan
leading
contributors
field,
significant
advancements
microbial-induced
(MICP)
enzyme-induced
calcium
carbonate
precipitation
(EICP)
techniques.
These
methods
have
demonstrated
effectiveness
improving
soil
strength,
reducing
erosion,
enhancing
hydrological
properties
such
as
infiltration,
runoff
control,
water
retention.
Co-occurrence
identifies
interdisciplinary
connections
between
geotechnics
hydrology,
highlighting
clusters
focused
on
biomineralization,
resistance,
durability.
findings
underscore
biocementation’s
pivotal
role
addressing
sustainability
challenges
by
providing
environmentally
friendly
alternatives
traditional
stabilization
not
only
maps
current
landscape
but
also
offers
valuable
insights
into
practical
implications
biocementation
for
stability
laying
foundation
future
practices.
Microbial Cell Factories,
Journal Year:
2024,
Volume and Issue:
23(1)
Published: Aug. 27, 2024
Abstract
Introduction
With
rapid
elevation
in
population,
urbanization
and
industrialization,
the
environment
is
exposed
to
uncontrolled
discharge
of
effluents
filled
with
broad-spectrum
toxicity,
persistence
long-distance
transmission
anthropogenic
compounds,
among
them
heavy
metals.
That
put
our
ecosystem
on
verge
or
at
a
stake
drastic
ecological
deterioration,
which
eventually
adversely
influence
public
health.
Therefore,
this
study
employed
marine
fungal
strain
Rhodotorula
sp.
MZ312369
for
Zn
2+
Cr
6+
remediation
using
promising
calcium
carbonate
(CaCO
3
)
bioprecipitation
technique,
first
time.
Results
Initially,
Plackett–Burman
design
followed
by
central
composite
were
applied
optimize
carbonic
anhydrase
enzyme
(CA),
succeeded
enhancing
its
activity
154
U/mL
1.8-fold
increase
comparing
basal
conditions.
The
potentiality
biofactory
remediating
(50
ppm)
(400
was
monitored
through
dynamic
several
parameters
including
microbial
count,
CA
activity,
CaCO
weight,
pH
fluctuation,
changing
soluble
concentrations
Ca
along
.
results
revealed
that
9.23
×
10
7
±
2.1
6
CFU/mL
10.88
2.5
cells
exhibited
their
maximum
124.84
1.24
140
132
h
,
respectively.
Simultaneously,
9.5
0.2,
complete
removal
both
metals
observed
168
h;
percentages
recorded
78.99%
85.06%
experiments,
Further,
identity,
elemental
composition,
functional
structure
morphology
bioremediated
precipitates
also
examined
via
mineralogical
analysis.
EDX
pattern
showed
typical
signals
C,
O
accompanying
peaks.
SEM
micrographs
depicted
spindle,
spherical
cubic
shape
bioliths
size
range
1.3
0.5–23.7
3.1
µm.
Meanwhile,
XRD
difractigrams
unveiled
prevalence
vaterite
phase
remediated
samples.
Besides,
FTIR
profiles
emphasized
presence
spectral
peaks
wavenumbers.
Conclusion
mediated
immobilization
encapsulation
inside
potent
trap
biomineralization
process,
deemed
as
surrogate
ecofriendly
solution
mitigate
toxicity
restrict
mobility
soil
wastewater.
