ACS ES&T Engineering,
Journal Year:
2024,
Volume and Issue:
4(6), P. 1286 - 1301
Published: May 27, 2024
Amplicon
sequencing
data
and
operating
from
anaerobic
wastewater
treatment
plants
three
Canadian
pulp
paper
mills
were
explored
using
correlation
network
modularization
approaches
to
study
the
microbial
community
organization
identify
relationships
between
organisms
conditions.
Each
of
digesters
contains
two
or
modules,
functional
units,
consisting
that
cover
all
trophic
stages
digestion.
The
modules
function
independently
each
other,
their
relative
abundance
changes
in
response
changing
show
antagonistic
responses,
with
one
module
associated
stable
operation
another
linked
periods
environmental
stress.
Operating
parameters
correlated
include
sulfide
concentration
digester
influent
biogas
flow
rate
as
well
performance
metrics
such
COD
removal
efficiency
volatile
fatty
acid-to-alkalinity
ratio.
Elevated
levels
notably
impact
composition
seem
be
primary
driver
process
inhibition.
time
delay
a
change
microorganisms
was
investigated
time-lagged
parameters.
This
ranged
2
4
days
is
likely
influenced
by
growth
rates
hydraulic
retention
time.
application
lagged
appeared
necessary
for
identifying
numerous
correlations
would
otherwise
have
remained
undetected.
because
without
lag
tend
smaller
are
often
not
significant.
Digester
upsets
due
plant
shutdown
organic
overload
caused
drastic
increase
acetoclastic
methanogenesis
population
acidogenic
fermenters
syntrophic
acid
degraders.
In
impaired
conditions,
same
Methanothrix
amplicon
sequence
variants
(ASVs)
dominated
mills,
its
maximum
within
archaeal
reaching
68
at
mill
A,
58
B,
27%
C.
common
characteristics
represented
this
ASV
should
further
role
alleviating
upset
Across
production
predominantly
relied
on
methanogenesis.
most
abundant
methanogenic
ASVs,
accounting
average
63%
archaea
52%
73%
C
over
investigation
period.
Also,
reactor
contained
least
ASVs
high
class
Bathyarchaeia.
presence
Bathyarchaeia,
ranging
10
20%
total
digesters,
may
higher
lignin
content
present
wastewater.
Chapter
2
Direct
analysis
of
aromatic
pollutants
using
HPLC-FLD/DAD
for
monitoring
biodegradation
processes
3
Indene,
Indane
and
Naphthalene
in
a
mixture
with
BTEX
affect
aerobic
compound
kinetics
indigenous
microbial
community
development
4
Laboratory
batch
studies
on
biostimulation
bioaugmentation
strategies
the
BTEX,
Indane,
degradation
under
nitrate
sulfate-reducing
conditions
5
Microaerobic
pollution
mixtures
groundwater:
Defining
efficient
oxygen
dosage
6
Impact
redox
condition
co-contaminant
exposure
history
anaerobic
communities
during
Toluene
Benzene
laboratory
soil
columns
