In
contrast
to
nitrification-denitrification
microorganisms
that
convert
ammonia
nitrogen
in
hypersaline
wastewater
into
for
discharge,
this
research
utilizes
sludge
enriched
with
salt-tolerant
assimilation
bacteria
(STAB)
assimilate
organic
matter
and
ectoine
-
a
biomass
high
economic
value
resistance
external
osmotic
pressure.
The
study
investigates
the
relationship
between
synthesis
of
removal
efficiency
STAB
three
sequencing
batch
reactors
(SBR)
operated
at
different
salinities
(50,
75,
100
g/L)
concentrations.
reveals
that,
under
low
concentration
carbon
sources
(TOC/N=4,
NH4+-N=60
mg/L),
SBR
increased
by
14.51%
17.25%
within
5
d
2
d,
respectively,
when
salinity
from
50
g/L
75
g/L.
Under
(TOC/N=8,
NH4+-N
=60
stabilized
80.20%,
76.71%,
72.87%,
total
was
finally
80.47%,
73.15%,
65.53%,
respectively.
performance
ammonium-assimilating
is
more
sustainable
salinity,
while
it
short-term
explosive
salinity.
Moreover,
intracellular
found
be
related
behavior.
Empirical
formulas
confirm
synthesizes
nutrients
through
assimilation,
has
threshold
defect
(150
mg/gVss).
metabolism
pathways
constructed
using
Kyoto
Encyclopedia
Genes
Genomes
(KEGG).
findings
suggest
once
reaches
saturation,
inhibits
continuous
Water Research,
Journal Year:
2023,
Volume and Issue:
243, P. 120370 - 120370
Published: July 18, 2023
Acidic
partial
nitritation
(PN)
has
emerged
to
be
a
promisingly
stable
process
in
wastewater
treatment,
which
can
simultaneously
achieve
nitrite
accumulation
and
about
half
of
ammonium
reduction.
However,
directly
applying
anaerobic
oxidation
(anammox)
treat
the
acidic
PN
effluent
(pH
4-5)
is
susceptible
inhibition
anammox
bacteria.
Here,
this
study
demonstrated
adaptation
pH
moving
bed
biofilm
reactor
(MBBR).
By
feeding
laboratory-scale
MBBR
with
=
4.6
±
0.2),
an
was
self-sustained
range
5
-
6.
Yet,
high
total
nitrogen
removal
efficiency
over
80%
at
practical
loading
rate
up
149.7
3.9
mg
N/L/d
achieved.
Comprehensive
microbial
assessment,
including
amplicon
sequencing,
metagenomics,
cryosection-FISH,
qPCR,
identified
that
Candidatus
Brocadia,
close
known
neutrophilic
members,
dominant
Anammox
bacteria
were
found
present
inner
layer
thick
biofilms
but
barely
surface
thin
biofilms.
Results
from
batch
tests
also
showed
activity
could
maintained
when
subjected
concentration
10
N/L,
whereas
completely
inhibited
after
disturbing
structure.
These
results
collectively
indicate
enriched
not
inherently
acid-tolerant.
Instead,
achieved
performance
under
condition
likely
due
stratification
protection.
This
result
highlights
configuration
as
useful
solution
address
effluent,
suggests
may
play
critical
role
protecting
many
nature
environments.
Ecological Chemistry and Engineering S,
Journal Year:
2025,
Volume and Issue:
32(1), P. 59 - 83
Published: March 1, 2025
Abstract
In
the
presented
experiment,
we
tested
influence
of
irrigation
with
different
proportions
leachate
collected
from
sump
municipal
solid
waste
landfill
in
combination
LED
light
on
capacity
model
plant
to
remove
some
heavy
metals
(HMs)
(As,
Cr,
Cd,
Ni
and
Hg)
soil
store
them
biomass
Sinapis
alba
L.
There
were
six
variants
irrigated
either
distilled
water
(control)
or
a
(20
%,
50
75
90
100
%).
The
divided
into
two
groups:
A
(LED)
B
(no
LED)
concentrations
HMs
their
interdependence
(concentration
HM
plant)
monitored
soil/plant
samples.
measured
values
concentration
samples
did
not
show
positive
phytoextraction
HMs.
significantly
increased
(p
≤
0.05)
sorption
by
was
demonstrated
only
Cd
Hg
where
difference
between
Group
approximately
10
mg
kg–1.
Furthermore,
enrichment
coefficient,
EC
,
established
for
respective
experimental
variants.
>
1
indicating
“high
accumulator
plants“
all
A.
B,
recorded
control
variants,
application
%
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