Frontiers in Microbiology,
Journal Year:
2022,
Volume and Issue:
13
Published: April 5, 2022
A
METland
is
an
innovative
treatment
wetland
(TW)
that
relies
on
the
stimulation
of
electroactive
bacteria
(EAB)
to
enhance
degradation
pollutants.
The
designed
in
a
short-circuit
mode
(in
absence
external
circuit)
using
electroconductive
bed
capable
accepting
electrons
from
microbial
metabolism
Although
METlands
are
proven
be
highly
efficient
removing
organic
pollutants,
study
situ
EAB
activity
full-scale
systems
challenge
due
two-electrode
configuration.
For
first
time,
four
independent
were
tested
for
removal
pollutants
and
nutrients,
establishing
correlation
with
response
generated
by
presence
EAB.
efficiency
was
enhanced
plants
mixed
oxic-anoxic
conditions,
average
56
g
chemical
oxygen
demand
(COD)
mbed
material-3
day-1
2
total
nitrogen
(TN)
Ørby
(partially
saturated
system).
estimated
electron
current
density
(J)
provides
evidence
its
relationship
matter.
reached
max.
values
188.14
mA
m-2
(planted
system;
IMDEA
1),
223.84
(non-planted
2),
125.96
(full
123.01
2).
These
flow
remarkable
not
energy
harvesting
unequivocally
show
how
circulate
even
system.
relation
between
load
rate
(OLR)
at
inlet
coulombic
(CE;
%)
showed
decreasing
trend,
ranging
8.8
53%
(OLR
2.0
16.4
COD
day-1)
0.8
2.5%
41.9
45.6
systems.
This
pattern
denotes
complex
mixtures
such
as
real
wastewater
high
variable
OLR
should
necessarily
result
CE
values.
technology
validated
solution
treating
decentralized
locations.
Water,
Journal Year:
2020,
Volume and Issue:
12(6), P. 1665 - 1665
Published: June 10, 2020
Many
countries
and
regions
around
the
world
are
facing
a
continuously
growing
pressure
on
their
limited
freshwater
resources,
particularly
those
under
hot
arid
climates.
Higher
water
demand
than
availability
led
to
over-abstraction
deterioration
of
available
resources’
quality.
In
this
context,
wastewater,
if
properly
treated,
can
represent
new
source
added
in
local
balance,
Colorado,
California,
Australia,
China
wide
region
Middle
East,
which
is
characterized
as
one
most
water-stressed
world.
This
article
summarizes
status
wastewater
treatment
management
East
discusses
challenges,
various
barriers
also
opportunities
that
arise
by
introducing
sustainable
technology
Constructed
Wetlands
region.
Furthermore,
aim
provide
better
insight
into
possibility
feasibility
wider
implementation
green
climate
presenting
several
successful
case
studies
operating
facilities
for
sources.
Water Research,
Journal Year:
2020,
Volume and Issue:
183, P. 115988 - 115988
Published: June 17, 2020
Water
has
been
pushed
into
a
linear
model,
which
is
increasingly
acknowledged
of
causing
cumulative
emissions
pollutants,
waste
stocks,
and
impacting
on
the
irreversible
deterioration
water
other
resources.
Moving
towards
circular
model
in
sector,
configuration
future
infrastructure
changes
through
integration
grey
green
infrastructure,
forming
Nature-based
Solutions
(NBS)
as
an
integral
component
that
connects
human-managed
to
nature-managed
systems.
In
this
study,
thorough
appraisal
latest
literature
conducted,
providing
overview
existing
tools,
methodologies
indicators
have
used
assess
NBS
for
management,
well
complete
systems
considering
need
assessing
both
anthropogenic
natural
elements.
Furthermore,
facilitators
barriers
with
respect
policies
regulations
circularity
identified.
The
study
concludes
co-benefits
management
are
not
adequately
assessed.
A
holistic
methodology
from
perspective
still
needed
integrating
tools
(i.e.
hydro-biogeochemical
models),
methods
MFA-based
LCA)
incorporating
and/or
newly-developed
indicators.
Processes,
Journal Year:
2021,
Volume and Issue:
9(11), P. 1917 - 1917
Published: Oct. 27, 2021
Constructed
wetlands
(CW)
is
an
environmentally
friendly
technique
for
removing
pollutants
from
wastewater
and
has
been
applied
to
municipal
wastewater,
petroleum
refinery
agriculture
drainage,
acid
mine
etc.
The
past
decade
seen
a
remarkable
number
of
innovations
in
the
exponentially
growing
field
microbiology.
This
manuscript
covers
critical
review
key
aspects
CW,
such
as
various
types
contaminants
their
removal
mechanisms,
degradation
pathways,
challenges
opportunities,
materials,
applications,
theory
with
focus
on
recent
advances
last
three
decades.
In
addition,
attempt
taken
project
future
CW
facilitate
these
by
framing
unsolved
problems
CW.
Guidelines
are
prepared
fast-growing
through
standardization
design
aspects.
evaluation
current
state-of-the-art
technology
provides
definitions
performance
metric
nomenclature
effort
unify
community.
It
also
contains
outlook
emerging
trends
proposes
research
development
directions.
Water,
Journal Year:
2021,
Volume and Issue:
13(23), P. 3334 - 3334
Published: Nov. 24, 2021
Nature-Based
Solutions
(NBS)
have
been
proven
to
effectively
mitigate
and
solve
resource
depletion
climate-related
challenges
in
urban
areas.
The
COST
(Cooperation
Science
Technology)
Action
CA17133
entitled
“Implementing
nature-based
solutions
for
building
a
resourceful
circular
city”
has
established
seven
circularity
(UCC)
that
can
be
addressed
with
NBS.
This
paper
presents
the
outcomes
of
five
elucidation
workshops
more
than
20
European
experts
from
different
backgrounds.
These
international
were
used
examine
effectiveness
NBS
address
UCC
foster
implementation
towards
water
management.
A
major
outcome
was
identification
two
most
relevant
resources
areas:
‘Restoring
maintaining
cycle’
(UCC1)
‘Water
waste
treatment,
recovery,
reuse’
(UCC2).
s
Moreover,
significant
synergies
‘Nutrient
recovery
reuse’,
‘Material
‘Food
biomass
production’,
‘Energy
efficiency
recovery’,
‘Building
system
recovery’
identified.
Additionally,
real-life
case
studies
demonstrate
how
supporting
units
contribute
UCC.
Finally,
case-based
semi-quantitative
assessment
presented
performed.
Most
notably,
this
identifies
typically
employed
enable
processes
UCC1
UCC2.
While
current
consensus
is
well
by
individual
NBS,
we
presently
highlight
potential
combining
synergize
enabling
processes.
study
new
paradigm
aims
enhance
awareness
on
ability
multiple
issues.
