Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(51), P. 21503 - 21526
Published: Dec. 14, 2023
Innovation
in
decarbonizing
wastewater
treatment
is
urgent
response
to
global
climate
change.
The
practical
implementation
of
anaerobic
ammonium
oxidation
(anammox)
treating
domestic
the
key
reconciling
carbon-neutral
management
with
sustainable
development.
Nitrite
availability
prerequisite
anammox
reaction,
but
how
achieve
robust
nitrite
supply
and
accumulation
for
mainstream
systems
remains
elusive.
This
work
presents
a
state-of-the-art
review
on
recent
advances
anammox,
paying
special
attention
available
pathways
(forward-going
(from
nitrite)
backward-going
nitrate
nitrite)),
controlling
strategies,
physiological
ecological
characteristics
functional
microorganisms
involved
supply.
First,
we
comprehensively
assessed
nitrite-oxidizing
bacteria
control
methods,
outlining
that
these
technologies
are
transitioning
possessing
multiple
selective
pressures
(such
as
intermittent
aeration
membrane-aerated
biological
reactor),
integrating
side
stream
free
ammonia/free
nitrous
acid
suppression
recirculated
sludge
treatment),
maintaining
high
activity
ammonia-oxidizing
competing
oxygen
bacteria.
We
then
highlight
emerging
strategies
supply,
including
production
driven
by
novel
microbes
(ammonia-oxidizing
archaea
complete
ammonia
bacteria)
reduction
(partial
denitrification
nitrate-dependent
methane
oxidation).
resources
requirement
different
analyzed,
hybrid
pathway
combining
partial
nitrification
encouraged.
Moreover,
data-driven
modeling
process
well
proactive
microbiome
proposed
hope
achieving
application.
Finally,
existing
challenges
further
perspectives
highlighted,
i.e.,
investigation
nitrite-supplying
bacteria,
scaling-up
from
laboratory
under
real
conditions,
stable
performance
fundamental
insights
this
aim
inspire
advance
our
understanding
about
provide
robustly
shed
light
important
obstacles
warranting
settlement.
