Chemical Engineering Journal,
Journal Year:
2021,
Volume and Issue:
419, P. 130008 - 130008
Published: April 24, 2021
Microbial
electrochemical
technologies
(MET)
are
increasingly
being
considered
for
environmental
remediation
applications,
mainly
their
unique
capability
to
enhance
microbial
degradation
processes
in
an
environmentally
sustainable
manner
(e.g.,
without
requiring
addition
of
chemicals
and
with
little
or
even
no
energy
consumption).
To
date,
however,
the
application
MET
saturated
unsaturated
soils
contaminated
by
petroleum
hydrocarbons
(PH)
remains
challenged
a
number
operational
factors
which
have,
so
far,
hampered
more
rapid
deployment
technology.
In
this
context,
critical
review
has
comprehensively
analyzed
recent
scientific
literature
dealing
electrobioremediation
PH-contaminated
soils,
order
disentangle
impact
key
process
parameters
type
electrodes,
system
configurations,
design
criteria)
conditions
soil
characteristics
strategies
manipulate
thereof,
contaminants,
composition
PH-degrading
communities)
on
overall
performance.
Interestingly,
analysis
revealed
that
MET-based
been
successfully
applied
remove
variety
PH
(from
alkanes
polycyclic
aromatic
mixtures
thereof)
from
displaying
broad
range
electric
conductivities
(0.2–6
mS/cm),
using
different
configurations
simple
graphite
rod
buried
within
complex
tubular
electrode
assemblies).
limited
radius-of-influence
electrodes
is
typically
lower
than
50
cm,
appears
be
main
limiting
factor
requires
specific
amendment
conductive
materials/minerals
and/or
surfactants)
properly
addressed.
Finally,
study
highlights
urgent
need
pilot-scale
testing
confirm
promising
results
obtained
at
laboratory-scale
under
controlled,
yet
often
far-less
representative,
as
well
catalyze
commercial
societal
interest
towards
novel
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2019,
Volume and Issue:
7
Published: Nov. 8, 2019
Organophosphate
compounds
are
ubiquitously
employed
as
agricultural
pesticides
and
maintained
chemical
warfare
agents
by
several
nations.
These
highly
toxic,
show
environmental
persistence
accumulation,
contribute
to
numerous
cases
of
poisoning
death
each
year.
While
their
use
weapons
mass
destruction
is
rare,
these
never
fully
disappear
into
obscurity
they
continue
be
tools
fear
control
governments
terrorist
organizations.
Beyond
weaponization,
wide-scale
dissemination
products
has
led
accumulation
intoxication
soil
water
across
the
globe.
Therefore,
there
a
dire
need
for
rapid
safe
bioremediation,
personal
decontamination,
therapeutic
detoxicants.
hydrolyzing
enzymes
emerging
appealing
targets
satisfy
decontamination
needs
owing
ability
hydrolyze
both
nerve
using
biologically-derived
materials
environment
individual.
As
release
genetically
modified
organisms
not
widely
accepted
practice,
researchers
exploring
alternative
strategies
organophosphate
bioremediation
that
focus
on
cell-free
enzyme
systems.
In
this
review,
we
first
discuss
more
prevalent
organophosphorus
along
with
research
engineering
efforts
have
an
enhancement
in
activity,
substrate
tolerance,
stability.
later
half
advances
achieved
through
focusing
enhancing
catalytic
activity
stability
phosphotriesterase,
model
hydrolase,
various
approaches
such
nanoparticle
display,
DNA
scaffolding,
outer
membrane
vesicle
encapsulation.
Genes,
Journal Year:
2019,
Volume and Issue:
10(6), P. 456 - 456
Published: June 14, 2019
Diesel
is
a
complex
pollutant
composed
of
mixture
aliphatic
and
aromatic
hydrocarbons.
Because
this
complexity,
diesel
bioremediation
requires
multiple
microorganisms,
which
harbor
the
catabolic
pathways
to
degrade
mixture.
By
enrichment
cultivation
rhizospheric
soil
from
diesel-polluted
site,
we
have
isolated
bacterial
consortium
that
can
grow
aerobically
with
different
alkanes
polycyclic
hydrocarbons
(PAHs)
as
sole
carbon
energy
source.
Microbiome
diversity
analyses
based
on
16S
rRNA
gene
showed
diesel-degrading
consists
76
amplicon
sequence
variants
(ASVs)
it
dominated
by
Pseudomonas,
Aquabacterium,
Chryseobacterium,
Sphingomonadaceae.
Changes
in
microbiome
composition
were
observed
when
growing
specific
hydrocarbons,
reflecting
populations
Shotgun
metagenome
analysis
has
identified
redundant
genes
encoding
enzymes
implicated
initial
oxidation
(AlkB,
LadA,
CYP450)
variety
hydroxylating
ring-cleavage
dioxygenases
involved
polyaromatic
hydrocarbon
degradation.
The
phylogenetic
assignment
these
genera
allowed
us
model
role
consortium.
Rhizoremediation
microcosms
using
consortium,
resulted
an
important
enhancement
reduction
total
petroleum
(TPHs),
making
suited
for
rhizoremediation
applications.
Environmental Science & Technology,
Journal Year:
2020,
Volume and Issue:
54(4), P. 2054 - 2067
Published: Jan. 6, 2020
It
is
a
general
understanding
that
unconventional
oil
petroleum-extracted
and
processed
into
petroleum
products
using
means.
The
recent
growth
in
the
United
States
shale
production
lack
of
refineries
Canada
built
for
heavy
crude
processes
have
resulted
significant
increase
U.S
imports
since
2018.
This
has
increased
risk
incidents
catastrophic
emergencies
during
transportation
oils
transmission
pipelines
train
rails.
A
great
deal
effort
been
made
to
address
remediation
contaminated
soil/sediment
following
traditional
spills.
However,
spill
response
cleanup
techniques
(e.g.,
recuperation,
soil–sediment–water
treatments)
showed
slow
inefficient
performance
when
it
came
oil,
bringing
larger
associated
environmental
impacts
need
investigation.
To
best
our
knowledge,
there
no
coherent
review
available
on
biodegradability
including
Dilbit
Bakken
oil.
Hence,
view
insufficient
information
contrasting
results
obtained
petroleum,
this
an
attempt
fill
gap
by
presenting
collective
critical
analysis
literature
bioremediation
from
sand
oil).
can
help
evaluate
different
aspects
hydrocarbon
biodegradation
identify
knowledge
gaps
literature.
