A feasible method for the composition analysis and chemical remediation of clogging matter in subsurface flow constructed wetlands
Yu Zheng,
No information about this author
Yuyang Song,
No information about this author
Rongshe Zhang
No information about this author
et al.
Water Cycle,
Journal Year:
2024,
Volume and Issue:
5, P. 131 - 136
Published: Jan. 1, 2024
The
problem
of
clogging,
especially
biological
makes
the
long-term
operation
subsurface
flow
constructed
wetlands
challenging.
This
study
focused
on
two
receiving
reclaimed
water
near
Tuhai
River
Shandong
Province,
aiming
to
provide
a
feasible
method
for
composition
analysis
and
chemical
remediation
by
H2O2
solution
clogging
matter.
compositions
distributions
matter
in
these
were
analyzed,
effects
solutions
with
different
mass
fractions
proteins,
polysaccharides,
nucleic
acids,
humic
acids
organic
components
studied.
case
studies
indicated
that
contents
varied
greatly
due
time
mode,
proportion
inorganic
was
higher
than
components.
mainly
proteins
very
small
amounts
polysaccharides
acids.
In
addition,
fraction
10%
had
good
removal
effect
wetland
substrates,
which
also
could
increase
permeability
coefficient
substrates
without
causing
large
negative
impact
temperature
pH
value
systems.
article
proposed
simple,
economical,
environmentally
friendly
analyzing
remediating
wetlands,
expected
be
widely
used
situ
Language: Английский
Occurrence and ecological risk of microplastics in different mariculture feeds
Water Cycle,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Language: Английский
Comparison of ASTM and in-line microplastic sampling methods for drinking water
Microplastics and Nanoplastics,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: April 30, 2025
Language: Английский
Towards a Consensus Method for the Isolation of Microplastics from Freshwater Sediments
Environments,
Journal Year:
2024,
Volume and Issue:
11(7), P. 146 - 146
Published: July 12, 2024
Environmental
pollution
caused
by
plastic
waste
is
of
global
concern.
There
growing
interest
in
the
study
microplastics
freshwater
systems.
However,
lack
harmonized
analytical
methodology
makes
it
difficult
to
compare
results
obtained
different
laboratories.
This
work
compared
methods
for
recovery
from
sediments
based
on
density
separation
flotation
followed
digestion
organic
matter.
Simulated
sediment
was
spiked
with
virgin
polypropylene,
polystyrene,
polyamide
(PA),
polyethylene
terephthalate
(PET),
and
polyvinyl
fluoride
(PVF)
pellets,
post-consumer
polytetrafluoroethylene
(PTFE)
fragments.
Density
carried
out
using
distilled
water
NaCl,
CaCl2,
ZnCl2,
NaI
solutions,
both
intact
pellets/fragments
following
grinding
sieving
three
size
fractions
(<1
mm,
1–2
>2
mm).
Digestions
HNO3,
NaOH,
Fenton’s
reagent
were
compared.
Only
quantitatively
recovered
all
types
polymers.
CaCl2
ZnCl2
but
PVF
PTFE.
Different
patterns
observed
same
polymer,
highlighting
fact
that
not
only
factor
affecting
recovery.
Digestion
efficiencies
6–78%
4–45%
49–80%
reagent.
Overall,
recommended
matter
removal.
Language: Английский
Abundance and Characteristics of Fibrous Microplastics and Microfibers Isolated in Mullus barbatus from the Adriatic Sea—Preliminary Investigation
Microplastics,
Journal Year:
2023,
Volume and Issue:
2(4), P. 411 - 421
Published: Dec. 14, 2023
Despite
the
wide
distribution
of
textile
microfibers
in
marine
environment,
there
is
still
limited
knowledge
on
microfiber
ingestion
fish
species
intended
for
human
consumption,
mostly
due
to
analytical
issues.
The
present
study
aims
assess
occurrence
red
mullet
(Mullus
barbatus)
samples
collected
from
Italian
waters
central
Adriatic
Sea.
M.
barbatus
a
bottom
that
lives
contact
with
sediment
and
therefore
was
proposed
as
sentinel
monitoring
plastic
pollution.
A
visual
approach
based
evaluation
specific
surface
morphology
applied
identification
particles
different
origins.
preliminary
findings
showed
presence
80%
mean
5.95
microfibers/individual.
majority
(>80%)
isolated
were
natural/artificial
origin,
while
dominant
colors
blue
black.
obtained
results
confirmed
benthic
are
susceptible
indicate
high
availability
these
basin.
Considering
spectroscopic
drawbacks
analyses
need
improve
current
rate
contamination
fishery
products,
could
be
feasible,
easy,
accessible
method
pollution,
assessment
consumer
health
risks.
Language: Английский
INNOVATIVE MONITORING OF WATER ENVIRONMENT IN VANAME SHRIMP FARMING BASED ON LORAWAN
Dani Puput,
No information about this author
Muhammad Yassir,
No information about this author
Iwan Purnama
No information about this author
et al.
Journal of Southwest Jiaotong University,
Journal Year:
2024,
Volume and Issue:
59(1)
Published: Jan. 1, 2024
The
sudden
vaname
shrimp
death
factors
are
overfeeding,
disease
infection,
failure
to
mount,
stress,
and
high
rainfall,
which
cause
potential
changes
in
water
pH
that
trigger
anxiety
shrimp.
next
factor
is
turbid
or
dirty
water.
Other
include
insufficient
oxygen
content
the
Therefore,
overcome
these
issues,
a
sensor
explicitly
handles
conditions
needed.
system
built
this
research
still
has
two
stages,
namely
real-time
monitoring
automatic
actuators,
being
developed.
placed
floating
condition
with
specific
materials
so
it
impossible
sink.
Some
tested
sensors
salinity,
pH,
turbidity,
dissolved
sensors.
Its
wireless
telecommunication
uses
LoRa
frequencies
of
920–923
MHz.
It
an
8-dBi
omnidirectional
antenna
Dragino
RFM96
Module
chip.
This
provides
data
on
entire
environment
needed
for
survive.
development
after
focused
actuator,
how
turn
Blower
automatically
needs
results
shown
from
experiment
all
brackish
quality
measurements
running
normally;
displayed
application
server
real
time
using
Tago.io
app
been
connected
LoRaWAN
Module,
915
MHz
found
end
devices.
installed
were
calibrated
produce
accurate
data.
Keywords:
environment,
innovative
sensor,
farming,
monitoring,
smart
aquaculture
DOI:
https://doi.org/10.35741/issn.0258-2724.59.1.18
Language: Английский