Antibiotics,
Год журнала:
2023,
Номер
12(7), С. 1194 - 1194
Опубликована: Июль 15, 2023
MIC
(microbiologically
influenced
corrosion)
is
problematic
in
many
industries,
especially
the
oil
and
gas
industry.
In
this
work,
N80
carbon
steel
for
pipelines
was
tested
with
26Cr3Mo
chromium
pipeline
comparison
SRB
(sulfate-reducing
bacterium)
mitigation
using
a
THPS
(tetrakis
hydroxymethyl
phosphonium
sulfate)-based
commercial
biocide
(Biotreat
5475
75-80%
by
mass).
Peptide
A,
nature-mimicking
synthetic
cyclic
peptide
(cys-ser-val-pro-tyr-asp-tyr-asn-trp-tyr-ser-asn-trp-cys)
biofilm
dispersal
ability
used
as
enhancer.
Metal
coupons
covered
3-d
old
Water Research,
Год журнала:
2024,
Номер
256, С. 121625 - 121625
Опубликована: Апрель 15, 2024
Hexavalent
chromium
(Cr(VI))
contamination
in
groundwater
poses
a
substantial
global
challenge
due
to
its
high
toxicity
and
extensive
industrial
applications.
While
the
bioelectroremediation
of
Cr(VI)
has
attracted
huge
attention
for
eco-friendly
attributes,
practical
application
remains
constrained
by
hydrogeochemical
conditions
(mainly
pH),
low
electron
transfer
efficiency,
limitations
electrocatalyst
synthesis
electrode
fabrication.
In
this
study,
we
developed
investigated
use
N,
S
co-doped
carbon
nanofibers
(CNFs)
integrated
on
graphite
felt
(GF)
as
self-standing
cathode
(NS/CNF-GF)
comprehensive
reduction
from
real
contaminated
groundwater.
The
binder
free
cathode,
prepared
through
electro-polymerization,
was
employed
dual-chamber
microbial
fuel
cell
(MFC)
treatment
Cr
(VI)-laden
(40
mg/L)
with
pH
7.4.
electrochemical
characterization
revealed
distinct
electroactive
surface
area,
more
wettability,
facilitating
enhanced
adsorption
rapid
transfer,
resulting
commendable
rate
0.83
mg/L/h.
MFC
equipped
NS/CNF-GF
demonstrated
lowest
charge
resistance
(Rct)
generated
highest
power
density
(155
±
0.3
mW/m2)
compared
control
systems.
favorable
electrokinetics
modified
led
swift
substrate
consumption
anode,
releasing
electrons
protons,
thereby
accelerating
achieve
cathodic
coulombic
efficiency
(C.Eca)
80
1.3%.
A
similar
temporal
trend
observed
between
removal
COD
C.Eca,
underscores
effective
performance
electrode.
reusability
exemption
catholyte
preparation
absence
regulation
requirements
highlighted
potential
scalability
applicability
our
findings
larger
scale.
