ACS ES&T Water,
Journal Year:
2024,
Volume and Issue:
4(7), P. 3037 - 3048
Published: June 29, 2024
In
recent
years,
it
has
been
difficult
to
remove
excess
N
(mainly
NO3–-N)
in
wastewater
with
a
low
ratio
of
biochemical
oxygen
demand/chemical
demand.
The
present
study
combined
the
operation
electrochemical
process
(with
modified
brass
mesh
electrode
being
used
as
cathode)
and
anammox
(anaerobic
ammonium
oxidation)
treat
high
nitrate-simulated
investigated
overall
operating
parameters
system.
Results
showed
that
efficiency
system
for
removal
total
nitrogen
can
be
stabilized
over
76.35%
at
an
feed
300
mg/L
NO3–-N,
NO2–-N/NH4+-N
(around
130
mg/L)
effluent
part
was
kept
around
1.
Although
specific
activity
decreased
from
142.07
129.23
mg/g
VSS-d,
amount
secreted
extracellular
polymeric
substances
increased
initial
152.10
204.12
VSS.
main
functional
bacteria
were
Candidatus
Brocadia
(2.80–8.84%)
Jettenia
(0.94–1.99%).
Compared
traditional
denitrification,
composite
lags
behind
but
still
holds
certain
economic
advantage
nitrate
counterpart.
