Environment International,
Год журнала:
2024,
Номер
190, С. 108809 - 108809
Опубликована: Июнь 8, 2024
Microplastics,
as
a
type
of
anthropogenic
pollution
in
aquatic
ecosystems,
affect
the
carbon
cycle
organic
matter.
Although
some
studies
have
investigated
effects
microplastics
on
dissolved
matter
(DOM),
impact
alterations
chemical
properties
refractory
DOM
and
release
remains
unclear.
Here,
we
observed
that
microplastic
treatments
(e.g.,
polystyrene,
PS)
altered
composition
function
microbial
community,
notably
increasing
abundance
families
involved
consuming
easily
degradable
During
process
which
community
decomposed
into
DOM,
PS
underwent
surface
oxidation.
The
oxidized
aggregated
with
microorganisms
through
electrostatic
interactions
bonds.
Moreover,
these
between
utilization
matter,
resulting
significant
decrease
CO
Environmental Science & Technology,
Год журнала:
2021,
Номер
55(16), С. 11294 - 11307
Опубликована: Авг. 2, 2021
Understanding
the
degradation
of
dissolved
organic
matter
(DOM)
is
vital
for
optimizing
DOM
control.
However,
microbe-mediated
transformation
during
wastewater
treatment
remains
poorly
characterized.
Here,
microbes
and
along
full-scale
biotreatment
processes
were
simultaneously
characterized
using
comparative
genomics
high-resolution
mass
spectrometry-based
reactomics.
Biotreatments
significantly
increased
DOM's
aromaticity
unsaturation
due
to
overproduced
lignin
polyphenol
analogs.
was
diversified
by
over
five
times
in
richness,
with
thousands
nitrogenous
sulfur-containing
compounds
generated
through
oxidoreduction,
functional
group
transfer,
C–N
C–S
bond
formation.
Network
analysis
demonstrated
microbial
division
labor
transformation.
their
roles
determined
traits
rather
than
taxa.
Specifically,
network
module
hubs
exhibited
rapid
growth
potentials
broad
substrate
affinities
but
deficient
xenobiotics-metabolism-associated
genes.
They
mainly
correlated
liable
consumption
its
recalcitrant
compounds.
In
contrast,
connectors
peripherals
potential
degraders
slow
growth.
showed
specialized
associations
fewer
molecules
probably
fed
on
metabolites
hub
microbes.
Thus,
developing
technologies
(e.g.,
carriers)
selectively
enrich
peripheral
consequently
decouple
may
advance
removal.
Chemical Engineering Journal,
Год журнала:
2022,
Номер
451, С. 138481 - 138481
Опубликована: Авг. 4, 2022
Several
key
challenges
are
hindering
large-scale
cultivation
of
microalgae
for
industrial
purposes,
including
wastewater
treatment,
carbon
capture,
biomass
production,
and
renewable
energy
production.
These
closely
related
to
efficacy
1)
resource
utilization,
2)
3)
harvesting.
This
review
describes
how
attached
or
biofilm
and/or
cyanobacteria
with
heterotrophic
bacteria
in
consortia
could
simultaneously
resolve
these
technical
obstacles,
thereby
reducing
monetary
energetic
costs
producing
microalgal
bioenergy.
Symbiotic
relationships
between
organisms
reduces
the
need
aeration
exogenous
supplementation
nutrients.
Additionally,
this
details
increasing
biodiversity
correlates
diversity
functionality
(carbon
capture
nitrification)
attached/biofilm
can
improve
photosynthetic
efficiency
water
footprint.
Mixed-species
biofilms
have
persisted
billions
years
across
earth's
natural
history
because
they
some
nature's
most
highly
efficient
biosystems,
deserve
more
dedicated
study
broader
application
bioenergy
practical
connections
microalgal-bacterial
consortia,
cultivation,
waste-to-value
biorefining,
relevance
production
value-added
products
(VAPs);
four
topics
previously
unconnected
a
single
review.
As
such
aims
bridge
current
knowledge
gaps
multiple
research
fields
sectors,
towards
goal
efficient,
economical,
climate-forward
bio-services
Eco-Environment & Health,
Год журнала:
2022,
Номер
1(4), С. 259 - 279
Опубликована: Дек. 1, 2022
After
the
Industrial
Revolution,
ever-increasing
atmospheric
CO2
concentration
has
resulted
in
significant
problems
for
human
beings.
Nearly
all
countries
world
are
actively
taking
measures
to
fight
carbon
neutrality.
In
recent
years,
negative
emission
technologies
have
attracted
much
attention
due
their
ability
reduce
or
recycle
excess
atmosphere.
This
review
summarizes
state-of-the-art
technologies,
from
artificial
enhancement
of
natural
sink
technology
physical,
chemical,
biological
methods
capture,
as
well
utilization
and
conversion.
Finally,
we
expound
on
challenges
outlook
improving
accelerate
pace
achieving
Environment International,
Год журнала:
2023,
Номер
177, С. 108035 - 108035
Опубликована: Июнь 13, 2023
Bioelectric
field
is
a
stimulated
force
to
degrade
xenobiotic
pollutants
in
soils.
However,
the
effect
of
bioelectric
on
microplastics
(MPs)
aging
unclear.
The
degradation
behavior
polyvinyl
chloride
(PVC),
polyethylene
(PE)
and
polylactic
acid
(PLA)
was
investigated
an
agricultural
soil
microbial
electrochemical
system
which
generated
in-situ
by
native
microbes.
Based
density
function
theory,
energy
gaps
between
highest
lowest
occupied
molecular
orbitals
three
polymers
with
periodic
structure
were
4.20,
7.24
10.09
eV
respectively,
further
decreased
under
electric
field,
indicating
higher
hydrolysis
potential
PLA.
Meanwhile,
mass
loss
PLA
closed-circuit
group
(CC)
day
120,
reaching
8.94%,
3.01-3.54
times
that
without
stimulation.
This
mainly
due
enrichment
plastic-degrading
bacteria
robust
co-occurrence
network
as
deterministic
assembly
process,
e.g.,
abundance
surface
PVC
CC
increased
1.92
1.30
times,
compared
open-circuit
group.
In
terms
functional
genes,
biodegradation
metabolism
capacity
plasticsphere
stronger
than
soil,
determined
bioaccessibility
nitrogen
carbon.
Overall,
this
study
explored
promoting
MPs
reveled
mechanism
from
quantum
chemical
calculations
community
analysis,
provides
novel
perception
MPs.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(12), С. 5394 - 5404
Опубликована: Март 11, 2024
Conventional
microalgal–bacterial
consortia
have
limited
capacity
to
treat
low-C/N
wastewater
due
carbon
limitation
and
single
nitrogen
(N)
removal
mode.
In
this
work,
indigenous
synergetic
with
high
N
performance
bidirectional
interaction
were
successful
in
treating
rare
earth
tailing
wastewaters
low-C/N.
Ammonia
reached
0.89
mg
L–1
h–1,
1.84-fold
more
efficient
than
a
common
system.
Metagenomics-based
metabolic
reconstruction
revealed
interactions.
The
presence
of
microalgae
increased
the
abundance
bacterial
N-related
genes
by
1.5-
57-fold.
Similarly,
bacteria
microalgal
assimilation
2.5-
15.8-fold.
Furthermore,
nine
species
isolated,
promotion
system
was
verified.
mechanism
enhanced
indole-3-acetic
acid
revealed.
addition,
mode
ensured
scavenging
toxic
byproducts
from
nitrate
metabolism
maintain
stability
Collectively,
enhancement
microalgae-bacteria
established
as
an
effective
strategy
broaden
stable
application
for
treatment
low
C/N
ratio
wastewater.
