Critical Reviews in Environmental Science and Technology,
Journal Year:
2024,
Volume and Issue:
54(23), P. 1672 - 1691
Published: May 16, 2024
Biological
nitrogen
removal
is
a
classic
technique
for
removing
from
wastewater
that
has
been
studied
extensively
and
gives
high
rate,
energy
efficiency,
relatively
environmentally
benign.
Using
biological
processes
to
treat
the
diverse
components
of
requires
thorough
understanding
microorganisms
pathways
involved.
However,
information
regarding
participating
in
remains
limited.
This
review
presents
current
knowledge
researches
into
these
microorganisms,
including
ammonia
oxidizing
bacteria,
archaea,
complete
oxidation
nitrite-oxidizing
anaerobic
ammonium
denitrifying
heterotrophic
nitrification-aerobic
denitrification
bacteria.
The
metabolic
enzymatic
reactions
involved
cycle
abovementioned
are
demonstrated.
key
enzymes,
functional
genes,
removal-related
were
discussed.
Additionally,
advantages
different
oxidation,
denitrifying,
HN-AD
described.
Finally,
limitations
strategies
unraveling
presented.
aim
improve
our
principle
advanced
allow
possible
improvements
treatment
be
identified.
