Environments,
Journal Year:
2024,
Volume and Issue:
11(8), P. 162 - 162
Published: Aug. 1, 2024
The
swine
industry
generates
millions
of
gallons
(thousands
cubic
meters)
wastewater
every
day,
posing
significant
environmental
risk
due
to
high
concentrations
organics
and
nutrients.
This
study
aims
investigate
the
effectiveness
attached-growth
anaerobic
bioreactors
for
treating
by
utilizing
sulfate-reducing
bacteria,
focusing
on
impact
chemical
oxygen
demand
(COD)/sulfate
mass
ratios
degradation.
A
series
lab-scale
were
employed
treat
a
14-day
period.
evaluated
changes
in
pH,
acidity,
alkalinity,
COD,
sulfate,
various
nutrients
along
with
total
suspended
solids
(TSS)
volatile
(VSS)
before
after
treatment.
At
COD/sulfate
ratio
2:1,
achieved
optimum
removal
efficiencies
80%
TSS,
83%
VSS,
86–88%
82–87%
73%
sulfide,
sulfite.
nutrient
efficiency
was
67%
nitrate
72%
nitrite.
acidity
alkalinity
effectively
controlled,
values
reaching
up
2161
±
92.5
mg/L
pH
within
range
7–7.24.
findings
demonstrated
that
bioreactor
at
2:1
significantly
enhanced
degradation
organic
matter
coupling
sulfate
reduction
wastewater,
providing
an
efficient
sustainable
treatment
method.
Bioresource Technology,
Journal Year:
2023,
Volume and Issue:
385, P. 129431 - 129431
Published: July 1, 2023
Anaerobic
digestion
(AD)
is
promising
for
treating
high-strength
wastewater.
However,
the
effect
of
operational
parameters
on
microbial
communities
AD
with
sulfate
not
yet
fully
understood.
To
explore
this,
four
reactors
were
operated
under
rapid-
and
slow-filling
modes
different
organic
carbons.
Reactors
in
rapid-filling
mode
generally
exhibited
a
fast
kinetic
property.
For
example,
degradation
ethanol
was
4.6
times
faster
ASBRER
than
ASBRES,
acetate
11.2
ASBRAR
ASBRAS.
Nevertheless,
could
mitigate
propionate
accumulation
when
using
as
carbon.
Taxonomic
functional
analysis
further
supported
that
suitable
growth
r-strategists
(e.g.,
Desulfomicrobium)
K-strategists
Geobacter),
respectively.
Overall,
this
study
provides
valuable
insights
into
interactions
processes
through
application
r/K
selection
theory.
Land Degradation and Development,
Journal Year:
2023,
Volume and Issue:
35(4), P. 1261 - 1283
Published: Nov. 30, 2023
Abstract
Mercury
(Hg)
pollution
of
soil
and
water
environments
is
a
major
global
threat
to
human
health,
agri‐food
systems
ecosystems
industrial
activities
mainly
coal
combustion
augmented
their
content
in
different
environmental
media.
Bioremediation
nature‐based
solution
involving
microbial‐
plant‐based
(phytoremediation)
technologies
that
clean‐up
Hg
contaminated
sites.
Here,
we
review
Hg‐resistant
bacteria
how
latest
insights
our
understanding
the
cellular
biochemical
mechanisms
mer
operon
genes
responsible
for
resistance
transformation
have
facilitated
developments
microbial
Hg‐bioremediation.
We
also
phytoremediation
mechanisms,
including
those
bacterial‐
fungi‐assisted
processes,
which
shown
promising
results
reducing
2+
0
.
This
provides
detailed
knowledge
novel
bioremediation
methods.
Consequently,
phyto‐based
critical
role
reclamation
Hg‐contaminated
protection
health
ecosystems.
