Magnetite-Mediated Shifts in Denitrifying Consortia in Bioelectrochemical System: Insights into Species Selection and Metabolic Dynamics
Water Research,
Год журнала:
2024,
Номер
262, С. 122132 - 122132
Опубликована: Июль 22, 2024
Язык: Английский
Reduction of chromate and nitrate by type II aerobic methanotrophs under micro-aerobic conditions
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 159286 - 159286
Опубликована: Янв. 1, 2025
Язык: Английский
Composition and migration of microbial community in the ice–water–sediment interface of saline lakes in cold and arid regions
Ecological Indicators,
Год журнала:
2025,
Номер
171, С. 113232 - 113232
Опубликована: Фев. 1, 2025
Язык: Английский
Simulated Co-Substrate Threshold Manifests Steady-State Amelioration of Coal Gasification Gray Water Via Synergistic Biotransformations in Continuous-Flow Anoxic-Oxic System
Опубликована: Янв. 1, 2025
This
case
study
explored
the
mechanisms
influencing
anoxic/oxic
processes
in
100
ton/h
treatment
system
of
coal
gasification
gray
water
(CGGW).
It
was
experiencing
"spiked"
and
COD,
unstable
operation.
To
identify
issues
find
solution,
sideline
simulation
experiments
were
commenced
by
installing
600
times
miniaturized
bioreactor
14
m3
with
70
L/h
inlet
flow
rate.
Data
during
start-up
revealed
that
period
sludge
acclimation
(24
days)
stabilization
(10
days),
30%
reflux
from
oxic-
to
anoxic-pond,
0.8-1.2
mg
L‒1
DO
oxic-pond
favored
nitrification.
However,
it
could
not
sustain
denitrification
without
adding
organic
carbon
anoxic-pond.
Therefore,
two
co-substrates
(glucose
methanol)
supplemented
separately
metabolic
response
aerobic/anaerobic
ammonia-oxidizing
bacteria
(AerAOB/AnAOB),
denitrifying
(DNB).
Glucose
increased
both
ponds
reflecting
hampered
partial
anammox
anoxic-pond
heterotrophic
non-function
over
DNB,
intolerance
AOB
carbon.
also
declined
depriving
AerAOB
AnAOB.
Methanol
addition
quickly
enhanced
denitrification;
however,
later
declined,
spiked.
By
reducing
methanol,
effluent
COD
met
standards
again.
indicated
overdosed
methanol
exceeded
DNB
usage,
carried
oxic-pond,
where
restricted
AOB's
growth
On
this
basis,
dosage
main
plant
reduced
2400
1540
kg/day,
which
meet
standards,
achieved
plant's
operational
stability.
These
findings
conceptualized
CGGW
model
"synergistic
anammox-nitrification
denitrification-anammox
(SPANDA)"
regulated
lower
dosage.
Язык: Английский
Simulated co-substrate threshold manifests steady-state amelioration of coal gasification gray water via synergistic biotransformations in continuous-flow anoxic/oxic system
Journal of Water Process Engineering,
Год журнала:
2025,
Номер
72, С. 107537 - 107537
Опубликована: Апрель 1, 2025
Язык: Английский
Exploring bio-remediation strategies by a novel bacteria Micrococcus sp. strain HX in Cr(VI)-contaminated groundwater from long-term industrial polluted
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
289, С. 117474 - 117474
Опубликована: Дек. 6, 2024
Язык: Английский
Nitrogen Metabolism Network in the Biotreatment System of Coking Wastewater: Take the Oho Process as a Case
Опубликована: Янв. 1, 2024
A
B
S
T
R
C
TAs
steel
production
continues
to
rise,
large
amounts
of
highly
toxic
and
nitrogen-rich
coking
wastewater
(CWW)
are
produced.
The
novel
oxic-hydrolytic-oxic
(OHO)
biological
CWW
treatment
system
was
designed
remove
nitrogen-contained
contaminants
with
high
efficiency.
However,
previous
studies
have
not
comprehensively
explored
the
biotreatment
from
perspective
nitrogen
metabolism
functional
genes
pathways.
Based
on
investigation
taking
full-scale
OHO
as
a
case,
it
found
that
O1
O2
bioreactors
through
ammonia
assimilation,
while
H
bioreactor
removes
via
simultaneous
nitrification-denitrification
also
exhibits
potential
for
anaerobic
ammonium
oxidation
(Anammox).
94.98%
TN
removal
rate
is
primarily
attributed
33.87%
ammonification
61.11%
in
system.
Gaining
insights
into
dominant
pathways
crucial
elucidating
(BNR)
mechanism
This
understanding
will
guide
optimization
engineering
design
operational
practices,
contributing
more
effective
sustainable
strategies.
Язык: Английский
Nitrogen metabolism network in the biotreatment combination of coking wastewater: Take the OHO process as a case
Chemosphere,
Год журнала:
2024,
Номер
364, С. 143025 - 143025
Опубликована: Авг. 5, 2024
Язык: Английский
Recovery of ammonia assimilating microbiome after Cr (VI) shock by bio-accelerators
Journal of Environmental Management,
Год журнала:
2024,
Номер
370, С. 123020 - 123020
Опубликована: Окт. 24, 2024
Язык: Английский
Synergistic removal of ammonia nitrogen and hexavalent chromium by the hybrid-system of Acinetobacter baumannii AL-6 and original walnut shell biochar in solution: mechanism and application
Journal of environmental chemical engineering,
Год журнала:
2024,
Номер
unknown, С. 114969 - 114969
Опубликована: Ноя. 1, 2024
Язык: Английский