Desalination and Water Treatment,
Journal Year:
2023,
Volume and Issue:
301, P. 71 - 82
Published: July 1, 2023
Chloridazon
was
an
herbicide
used
on
sugar
beet
crops.Its
use
has
been
banned,
but
its
metabolites
chloridazon-desphenyl
and
chloridazon-methyl-desphenyl
are
still
present
in
the
environment.As
they
pose
a
threat
to
human
health,
best
method
remove
them
from
water
must
be
found.The
pilot
research
installation
for
removal
of
chloridazon
consisted
ozone
producing
PROTEC
145
OZ
UV
lamp
working
at
dose
400
4,000
J/
m
2
biological
activated
carbon
filters
(BACF).The
content
during
process
determined
by
high-performance
liquid
chromatography
coupled
with
tandem
mass
spectrometry.Based
results
conducted
contaminated
metabolites,
possibility
reducing
concentration
down
limit
detection
confirmed.The
show
that
BACF
can
effective
removing
organic
pollutants
water,
their
efficiency
depends
type
contaminants.
Water Research,
Journal Year:
2023,
Volume and Issue:
237, P. 119994 - 119994
Published: April 24, 2023
Slow
Sand
Filtration
is
popular
in
drinking
water
treatment
for
the
removal
of
a
wide
range
contaminants
(e.g.,
particles,
organic
matter,
and
microorganisms).
The
Schmutzdecke
slow
sand
filters
(SSFs)
known
to
be
essential
pathogen
removal,
however,
this
layer
also
responsible
increased
head
loss.
Since
role
deeper
layers
bacteria
virus
poorly
understood,
research
investigated
E.coli
WR1
PhiX
174
at
different
depths
full-scale
SSF.
Filter
material
from
top
(0–5
cm),
middle
(5–20
cm)
deep
(20–35
an
established
filter
was
used
innovative
experimental
set-up
differentiate
physical-chemical
biological
processes.
In
analysis,
we
distinguished
between
by
activity,
biofilm
just
sand.
addition,
modelled
processes
one-side
kinetic
model.
contributed
substantially
overall
log
(1.4–1.7
log10)
(0.4–0.6
log10).
For
WR1,
activity
caused
major
followed
within
sand,
whereas,
mainly
occurred
activity.
Narrow
pore
radii
obtained
micro-computed
tomography
scanner
suggested
enhanced
retention
due
constrained
transport.
rates
were
four
five
times
higher
than
layers,
respectively
(kret
1.09
min−1
vs
0.26
kret
0.32
0.06
174).
While
rate
restricted
alone
(top
5
extend
around
1
m
filters.
Therefore,
contribution
SSFs
viruses
much
more
substantial
Schmutzdecke.
Water Research,
Journal Year:
2025,
Volume and Issue:
281, P. 123684 - 123684
Published: April 19, 2025
Biofiltration,
a
sustainable
water
treatment
technology
relying
on
microbial
processes
to
remove
contaminants,
offers
promising
approach
achieving
the
United
Nations
Sustainable
Goal
6
of
universal
access
clean
and
sanitation
by
2030.
However,
key
barrier
optimising
biofiltration
is
incomplete
understanding
biological
mechanisms
governing
its
performance.
Despite
numerous
studies
examining
how
engineering
decisions
impact
biofilter
performance
associated
microbiome,
significant
influence
geographical
location
communities
raises
question
whether
these
findings
are
universally
applicable
or
location-specific.
To
address
this,
we
conducted
meta-analysis
15
microbiomes
using
16S
rRNA
high-throughput
sequencing
(HTS)
data,
mainly
originating
from
rapid
gravity
and/or
granular
activated
carbon
(GAC)
filters.
different
types
scales,
results
highlight
as
major
contributor
microbiome
dissimilarity
in
samples
(Top
Bottom)
(R2∼
0.5;
p-value<0.001).
The
same
was
observed
for
influent
waters
(PERMANOVA
R2=
0.76;
p-value<0.001),
indicating
location-specific
opposed
differences
driven
operating
parameters.
Irrespective
location,
higher
percentage
assembled
through
deterministic
(∼55
%)
compared
stochastic
(∼45
%).
Finally,
our
suggest
that
depth
stratification
may
be
with
enrichment
taxa
capable
metabolising
more
complex
organic
deeper
filter
layers
(10
enriched
pathways
Bottom
3
at
Top).
These
insights
provide
broader
offer
possible
research
avenues
targeted
effective
design
strategies.
Journal of Water Process Engineering,
Journal Year:
2024,
Volume and Issue:
60, P. 105101 - 105101
Published: March 8, 2024
Slow
sand
filters
(SSFs)
are
widely
used
in
drinking
water
production
to
improve
microbial
safety
and
biological
stability
of
water.
Full-scale
SSFs
maintained
by
scraping
the
biomass-rich
top
layers
sand.
The
period
downtime
required
for
filter
recovery
after
is
a
major
challenge
due
limited
knowledge
re-stabilisation
purification
processes.
This
study
examined
biomass,
removal
dissolved
organic
carbon
(DOC)
ammonium
(NH4+)
phase
and/or
on
along
depth
scraped
full-scale
SSF.
Scraping
reduced
biomass
layers,
while
main
prokaryotic
taxa
remained
unaltered.
Cellular
ATP
(cATP)
intact
cell
counts
(ICC)
sampled
from
increased,
indicating
temporary
disruption
functionality
37
days.
However,
stable
concentrations
cATP
ICC
similar
community
composition
effluent
revealed
that
deeper
layer
biofilms
offset
any
effect.
Consistent
DOC
NH4+
showed
effectively
performed
role
layer.
These
findings
highlight
resilience
robustness
communities
mature
their
contribution
treatment
efficiency
disturbances
caused
scraping.
Water,
Journal Year:
2024,
Volume and Issue:
16(13), P. 1888 - 1888
Published: July 1, 2024
As
emerging
pollutants,
pharmaceuticals
and
personal
care
products
(PPCPs)
in
water
have
attracted
more
attention
because
of
their
harmfulness
to
the
ecosystem
human
health.
Due
perpetual
input
from
sewage/wastewater
effluents,
landfill
leachates,
urban/agricultural
runoff,
etc.,
PPCPs
aquatic
environment
are
generally
“pseudo-persistent”.
Conventional
filtration
treatment
process
cannot
effectively
remove
PPCPs,
while
biofiltration,
a
synergistic
combination
adsorption
biodegradation,
is
an
effective
upgrade
method
that
has
received
great
application
recent
years.
This
paper
systematically
reviewed
principle
biofiltration
its
efficiency
removal
PPCPs.
The
important
operational
parameters
influencing
performance
such
as
filter
media,
temperature,
backwash
conditions,
empty
bed
contact
time,
etc.
were
summarized.
In
addition,
limitations
prospects
current
research
on
also
pointed
out.
The
prospect
of
drinking
water
serving
as
a
conduit
for
gut
bacteria,
artificially
selected
by
disinfection
strategies
and
lack
monitoring
at
the
point
use,
is
concerning.
Certain
opportunistic
pathogens,
notably
some
nontuberculous
mycobacteria
(NTM),
often
exceed
coliform
bacteria
levels
in
water,
posing
safety
risks.
NTM
other
microbiota
resist
chlorination
thrive
plumbing
systems.
When
inhaled,
can
infect
lungs
immunocompromised
or
chronically
ill
patients,
elderly,
primarily
postmenopausal
women.
ingested
with
survive
stomach
acidity,
reach
intestines,
migrate
to
organs
using
immune
cells
vehicles,
potentially
colonizing
tumor
tissue,
including
breast
cancer.
link
between
microbiome
cancer
not
new,
yet
recognition
intratumoral
microbiomes
recent
development.
Breast
risk
rises
age,
infections
emerged
concern
among
patients.
In
addition
studies
hinting
potential
association
chronic
lung
cancer,
have
also
been
detected
tumors
higher
than
normal
adjacent
tissue.
Evaluating
risks
continued
ingestion
contaminated
paramount,
especially
given
ability
various
from
tissue
via
entero-mammary
pathways.
This
underscores
pressing
need
revise
guidelines
delve
into
hormonal
factors,
which
includes
addressing
disproportionate
impact
on
women
examining
health
posed
cryptic
unchecked
water.
