The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
955, P. 177227 - 177227
Published: Nov. 1, 2024
Phosphate
minerals
are
crucial
for
the
production
of
fertilizers,
but
limited
availability
does
not
meet
growing
agricultural
demand.
At
same
time,
discharge
phosphorus
by
municipal
wastewater
treatment
plants
leads
to
eutrophication.
Removal
and
recovery
from
can
both
provide
nutrients
agriculture
decrease
This
research
aims
evaluate
removal
in
Latvia
mineral-based
calcium/iron
composites
examine
spent
oxides'
phytotoxic
effect
on
plant
growth.
Two
CaFeOxides
Latvian
earth
pigments
(iron
oxide
pigments)
deposits
were
synthesized
characterised
X-ray
powder
diffraction,
differential
scanning
calorimetry/thermogravimetry,
electron
microscopy-energy
dispersive
analysis
specific
surface
area
analysis.
Adsorption
properties
obtained
oxides
evaluated
with
a
standard
phosphate
solution,
real
wastewater.
The
P-loaded
was
hydroponic
system
common
wheat
(Triticum
aestivum).
results
indicated
that
have
higher
P
adsorption
efficiency
than
commercial
Polonite
material.
maximum
sorption
capacity
63.29
83.33
mg
P/g,
53.19
mg/g
Polonite.
Furthermore,
demonstrated
no
growth
Triticum
aestivum,
at
concentrations,
morphological
physiological
parameters
increased,
showing
great
potential
reuse
agriculture.
Water,
Journal Year:
2024,
Volume and Issue:
16(13), P. 1796 - 1796
Published: June 25, 2024
The
anaerobic-anoxic-oxic
(AAO)
process
is
one
of
the
most
widely
used
processes
for
treating
industrial
organic
wastewater,
and
it
has
shown
significant
effectiveness
in
removal
compounds,
as
well
denitrification
phosphorus
removal.
However,
treatment
this
anaerobic
preposition
aerobic
postposition
exposed
various
limitations.
Therefore,
type
oxic-hydrolytic
denitrification-oxic
(OHO)
been
proposed
developed
based
on
principles
three-sludge
separation
fluidization.
This
study
integrated
operational
data
from
203
coking
wastewater
plants
worldwide,
two-step
nitrification-denitrification
activated
sludge
model
No.3
(TCW-ASM3)
was
comparative
analysis
pollutant
efficiency
total
operating
cost
AAO
OHO
face
characteristic
pollutants
wastewater.
results
indicate
that
full-scale
achieved
efficiencies
up
to
3784
mg/L
chemical
oxygen
demand
(COD)
297
nitrogen
(TN).
theoretical
were
9.75
14.38
CNY/m3,
respectively.
pre-treatment
effectively
reduces
biological
toxicity
high-toxicity
refractory
system
provides
a
stable
living
space
functional
microorganisms,
combination
multi-mode
offers
new
possibilities
similar
types
Environmental Research,
Journal Year:
2023,
Volume and Issue:
244, P. 117945 - 117945
Published: Dec. 16, 2023
Pollution
from
Combined
Sewer
Overflows
(CSOs)
cause
diffuse
environmental
problems,
which
are
still
not
satisfactorily
addressed
by
current
management
practices.
In
this
study,
a
sensitivity
analysis
was
conducted
on
several
CSO
impact
indicators,
with
respect
to
parameters
that
characterise
climate,
urban
catchment
and
the
structure
activation
threshold.
The
running
10000
simulations
Storm
Water
Management
Model,
using
simplified
modelling
approach.
indicators
were
calculated
at
yearly
scale
evaluate
overall
potential
effects
water
bodies.
results
could
be
used
estimate
pollution
load
ranges,
known
values
of
input
parameters,
investigate
suitable
strategies
reduce
receiving
percentage
impervious
surface
found
most
influent
parameter
all
its
reduction
can
contain
discharged
pollutant
mass.
threshold,
instead,
resulted
second
least
suggesting
regulation
alone
would
strategy
pollution.
However,
along
imperviousness,
increase
effectively
decrease
concentration
in
overflow.
also
indicate
neither
adopting
sustainable
drainage
practices,
nor
interventions
device,
significantly
affect
frequency
overflows.
Therefore,
restricting
latter
ineffective
for
both
mass
Geosciences,
Journal Year:
2024,
Volume and Issue:
14(9), P. 231 - 231
Published: Aug. 28, 2024
Groundwater
is
a
critical
resource
in
the
Upper
Chao
Phraya
basin,
providing
consistent
water
supplies
for
agricultural,
domestic,
and
industrial
activities,
especially
during
dry
season.
This
study
utilized
tritium
carbon-14
dating
techniques
to
investigate
groundwater
age,
analyzing
273
samples
collected
2021
from
various
wells
depths
across
basin.
Tritium
were
measured
using
liquid
scintillation
counting
(LSC).
The
results
revealed
wide
range
of
ages,
including
recently
recharged
with
concentrations
up
2.4
TU,
corresponding
ages
ranging
few
months
44.17
years
BP
(Before
Present),
an
average
18.26
BP.
Older
was
identified
as
low
3.22
pMC,
indicating
22,899
years,
mean
age
6687
Correlation
analysis
showed
positive
relationship
between
(r
=
0.52).
Spatial
distribution
patterns
indicated
that
higher
northern
mountainous
areas,
identifying
these
recharge
zones.
In
contrast,
lower
central
southern
areas
suggested
presence
older
groundwater,
emphasizing
need
careful
management
ancient
reserves.
spatial
variation
highlights
differences
circulation
patterns,
enabling
identification
key
zones
highland
regions.
importance
conserving
pollution
over-extraction.
old
further
emphasizes
ongoing
monitoring
sustainably
manage
long-term
resources.
enhances
understanding
dynamics
basin
provides
valuable
insights
improving
strategies.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(15), P. 6328 - 6328
Published: July 24, 2024
Groundwater
is
the
main
clean
water
resource
in
northern
China,
and
its
quality
critical
for
both
human
health
social
sustainable
development.
Due
to
complex
anthropogenic
and/or
geogenic
processes,
sources
of
groundwater
contaminants
are
not
easy
determine.
The
Tabu
River
Basin,
located
an
agriculture
pasture
interlaced
area
which
phreatic
predominant
domestic
agricultural
purposes.
with
abnormally
high
levels
NO3−,
F−,
TDS
was
observed
here
based
on
87
samples
collected
from
aquifer
2022.
In
this
study,
hydrogeochemical
isotopic
methods
were
used
trace
aquifer,
a
risk
assessment
conducted
analyze
their
threat
health.
results
indicated
that
NO3−
primarily
originated
manure,
concentration
highly
associated
irrigation,
enrichment
F−
mainly
controlled
by
factors,
including
alkaline
condition,
competitive
adsorption,
dissolution
fluorine-bearing
minerals,
cation
exchange.
A
principal
component
analysis
(PCA)
showed
(PC1,
50.7%)
(PC2,
19.9%)
factors
determined
study
area.
demonstrated
98.9%,
92.0%,
80.5%
exceeded
permissible
limit
total
noncarcinogenic
children,
adult
females,
males,
respectively.
monitoring
2022
2023
suggested
contamination
could
be
mitigated
through
natural
attenuation
under
existing
external
pressures.
Measures
need
taken
decrease
enhance
sustainability
Basin.
findings
can
provide
reference
development
Basin
other
arid
semi-arid
regions
worldwide.
Environmental Science Water Research & Technology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Recovering
phosphorus
from
sewage
sludge
is
a
strategic,
circular
approach
to
ensure
long-term
availability
for
future
generations,
supporting
sustainability
and
resource
preservation.
