Research Square (Research Square),
Год журнала:
2022,
Номер
unknown
Опубликована: Март 22, 2022
Abstract
Wetlands
are
an
important
carbon
sink
for
greenhouse
gases
(GHGs),
and
embedding
microbial
fuel
cell
(MFC)
into
constructed
wetland
(CW)
has
become
a
new
technology
to
control
methane
emission.
Rhizosphere
anode
CW-MFC
was
by
selecting
rhizome-type
plants
with
strong
hypoxia
tolerance,
which
could
provide
photosynthetic
organics
as
alternative
fuel.
Compared
non-planted
system,
emission
flux
power
output
from
the
planted
increased
approximately
0.48
±
0.021mg/(m
2
·h)
1.07
W/m
3
,
respectively.
The
of
operated
under
open-circuit
condition
0.46
0.024
mg/(m
higher
than
that
closed-circuit
condition.
results
indicated
contributed
CW-MFC,
especially
mode
conditions.
proportional
external
resistance,
it
0.669
+
0.012
when
resistance
adjusted
100
Ω
1000
Ω.
High
throughput
sequencing
further
showed
there
competitive
relationship
between
electrogenic
bacteria
methanogens
in
system.
flora
abundance
electricity
producing
high,
while
mainly
consisted
Methanothrix
Methanobacterium
Methanolinea
.
form
content
element
C
were
analysed
solid
phase,
liquid
phase
gas
phase.
It
found
large
amount
consumed
each
migration
conversion,
relative
proportions
accounted
40.28%,
36.2%
20.1%
In
conclusion,
caron
transformation
be
properly
regulated
via
competition
microorganisms
driven
environmental
factors,
provides
direction
idea
wetland.
Environmental Technology & Innovation,
Год журнала:
2024,
Номер
35, С. 103647 - 103647
Опубликована: Апрель 30, 2024
An
increasing
number
of
people
are
starting
to
worry
about
pharmaceutical
chemicals
in
wastewater
due
the
widespread
use
pharmaceuticals
human
activities.
Nevertheless,
treatment
technology
has
a
hurdle
when
dealing
with
residues.
Wastewater
facilities
(WWTPs)
one
area
where
thorough
overview
PhPCPs
removal
methods
is
lacking.
(WW)
options
abound,
but
we
urgently
need
cost-effective,
long-term
solutions.
To
address
concerning
presence
treatment,
this
paper
summarises
and
reviews
comprehensive
evaluation
all
techniques
physical,
chemical
biological.
Phytotechnology
used
remove
them
by
constructed
wetlands
(CWs)
using
range
substrates,
including
more
traditional
gravel
sand,
as
well
different
types
waste,
cellulosic,
industrial,
animal,
mineral
waste.
In
addition
contributing
resolution
"waste"
issue,
economic
benefits
reusing
waste
materials
such
cellulose
sludge
from
water
animals
manure,
sewage
substantial.
We
assess
efficacy
PhPCP
phytoremediation
analysing
operational
parameters
for
phytotechnology
deployment,
substrate,
concentration,
species,
CWs,
retention
duration.
The
findings
provided
further
evidence
that
CWs
should
be
tertiary
at
WWTPs
prevent
spread
their
high
frequency
environment.
Heliyon,
Год журнала:
2023,
Номер
9(5), С. e16278 - e16278
Опубликована: Май 1, 2023
Chemical
coagulation–flocculation
has
been
used
widely
in
water
and
wastewater
treatment.
In
the
present
study,
green
coagulant
was
investigated.
The
role
of
Iraqi
plants
examined
to
remove
turbidity
by
using
kaolin
synthetic
water.
Thirteen
selected
were
prepared
as
powdered
coagulant.
experiment
run
based
on
mass
varied
from
0
10,000
mg/L
for
each
plant
with
a
rapid
mixing
speed
180
rpm
5
min,
slow
at
50
15
min
settling
time
30
min.
seven
best
coagulants
are
Albizia
lebbeck
(L.),
Clerodendrum
inerme
(10,000
mg/L),
Azadirachta
indica,
Conocarpus
lancifolius,
Phoenix
dactylifera
(5000
Dianthus
caryophyllus
(3000
mg/L)
Nerium
oleander
(1000
removal
rates
39.3%,
51.9%,
67.2%,
75.5%,
51.0%,
52.6%
57.2%,
respectively.
that
economically
feasible
achieve
highest
other
compounds.
Bioresources and Bioprocessing,
Год журнала:
2022,
Номер
9(1)
Опубликована: Июнь 20, 2022
Wetlands
are
an
important
carbon
sink
for
greenhouse
gases
(GHGs),
and
embedding
microbial
fuel
cell
(MFC)
into
constructed
wetland
(CW)
has
become
a
new
technology
to
control
methane
(CH4)
emission.
Rhizosphere
anode
CW-MFC
was
by
selecting
rhizome-type
plants
with
strong
hypoxia
tolerance,
which
could
provide
photosynthetic
organics
as
alternative
fuel.
Compared
non-planted
system,
CH4
emission
flux
power
output
from
the
planted
increased
approximately
0.48
±
0.02
mg/(m2·h)
1.07
W/m3,
respectively.
The
of
operated
under
open-circuit
condition
0.46
higher
than
that
closed-circuit
condition.
results
indicated
contributed
CW-MFC,
especially
mode
conditions.
proportional
external
resistance,
it
0.67
0.01
when
resistance
adjusted
100
1000
Ω.
High
throughput
sequencing
further
showed
there
competitive
relationship
between
electrogenic
bacteria
methanogens.
flora
abundance
high,
while
methanogens
mainly
consisted
Methanothrix,
Methanobacterium
Methanolinea.
form
content
element
C
were
analysed
solid
phase,
liquid
phase
gas
phase.
It
found
large
amount
source
(TC
=
254.70
mg/L)
consumed
mostly
through
migration
conversion,
storage
GHGs
accounted
60.38%
35.80%,
In
conclusion,
transformation
in
can
be
properly
regulated
via
competition
microorganisms
driven
environmental
factors,
provides
direction
idea
wetlands.
