Fermentation,
Год журнала:
2024,
Номер
10(11), С. 577 - 577
Опубликована: Ноя. 11, 2024
Microalgae
demonstrate
significant
efficacy
in
wastewater
treatment.
Anaerobic
digestion
effluent
(ADE)
is
regarded
as
an
underutilized
resource,
abundant
carbon,
nitrogen,
phosphorus,
and
other
nutrients;
however,
the
presence
of
inhibitory
factors
restricts
microalgal
growth,
thereby
preventing
its
direct
treatment
via
microalgae.
The
purpose
this
study
was
to
dilute
ADE
using
various
dilution
media
subsequently
cultivate
Chlorella
sp.
identify
optimal
culture
conditions
that
enhance
biomass
water
quality.
effects
were
assessed
by
evaluating
biomass,
sedimentation
properties,
nutrient
removal
efficiencies
results
increases
ratio
increased.
microalgae
treatments
diluted
with
simulated
significantly
higher
than
deionized
water,
but
their
quality
failed
meet
discharge
standards.
for
10
times
exhibited
microbial
strong
antioxidant
properties.
corresponding
total
phosphorus
concentration
(6.96
mg/L)
adhered
emission
limits
under
Livestock
Poultry
Industry
Pollutant
Emission
Standards
(8
mg/L),
while
ammonia
nitrogen
(90
near
compliance
(80
mg/L).
a
sludge
volume
index
(SVI30)
72.72
mL/g,
can
be
recovered
economically
efficiently
simple
precipitation.
Its
high
protein
(52.07%)
carbohydrate
(27.05%)
content,
coupled
low
ash
(10.75%),
makes
it
promising
candidate
animal
feed
fermentation.
This
will
aid
understanding
growth
unsterilized
establish
theoretical
foundation
cost-effective
purification
production.
Bioresources and Bioprocessing,
Год журнала:
2024,
Номер
11(1)
Опубликована: Июнь 2, 2024
Abstract
Produced
water
(PW)
from
oil
and
gas
exploration
adversely
affects
aquatic
life
living
organisms,
necessitating
treatment
before
discharge
to
meet
effluent
permissible
limits.
This
study
first
used
activated
sludge
pretreat
PW
in
a
sequential
batch
reactor
(SBR).
The
pretreated
then
entered
13
L
photobioreactor
(PBR)
containing
Scenedesmus
obliquus
microalgae
culture.
Initially,
10%
of
the
mixed
with
90%
culture
PBR.
After
exponential
growth
microalgae,
an
additional
25%
was
added
PBR
without
extra
nutrients.
reported
performance
as
well
reduction
effluent’s
total
organic
carbon
(TOC),
dissolved
solids
(TDS),
electrical
conductivity
(EC),
heavy
metals
content.
results
demonstrated
removal
efficiencies
64%
for
TOC,
49.8%
TDS,
49.1%
EC.
also
showed
reductions
barium,
iron,
manganese
by
95,
76,
52%,
respectively.
Fishes,
Год журнала:
2024,
Номер
9(7), С. 254 - 254
Опубликована: Июль 2, 2024
The
rice–fish
co-culture
is
an
important
model
of
carp
farming
in
China;
however,
research
on
the
dynamics
and
assembly
water
bacterial
communities
this
system
remains
limited.
Therefore,
study
aimed
to
explore
communities,
as
well
their
correlation
with
environmental
factors
paddy
water.
For
these
purposes,
was
divided
into
two
groups:
a
rice–carp
(WRC)
group
rice
monoculture
(WRM)
group,
20
fields
each
group.
After
60
days
farming,
concentrations
NH4+-N,
NO2−-N,
TN,
PO43−
were
significantly
higher
WRC
than
those
WRM
Alpha
diversity
analysis
showed
that
Shannon
index
decreased
compared
At
phylum
level,
relative
abundance
Actinobacteria
increased,
while
Proteobacteria
Bacteroidetes
neutral
community
(NCM)
indicated
random
process
played
dominant
role
construction
groups,
common
cultivation
increased
migration
rates,
thereby
affecting
assembly.
co-occurrence
network
displayed
led
looser
interactions
between
communities.
In
addition,
contents
nutrients
affected
bacteria
summary,
changed
bacteria,
stability
Environments,
Год журнала:
2025,
Номер
12(5), С. 134 - 134
Опубликована: Апрель 22, 2025
Desalination
concentrate
(DC)
is
a
residue
from
desalination
plants
in
semiarid
regions,
and
it
promising
for
microalgae
cultures.
Its
effects
have
been
evaluated
previsions
study
involving
Spirulina
sp.
LEB
18
cultures
grown
medium
containing
100%
DC,
supplemented
with
25%
Zarrouk
nutrients,
without
reuse.
In
the
present
study,
was
cultivated
recycled
saline
previous
experiment
over
three
consecutive
cycles
using
raceways.
The
DC
achieved
maximum
biomass
production
of
3.77
g·L−1,
surpassing
control
(3.45
g·L−1),
demonstrated
high
resistance
to
elevated
environmental
temperatures,
reaching
42.80
°C.
Protein
levels
(≤37%)
all
essential
amino
acids
(~40%
total
proteins)
fatty
relevant
impacts
on
health
were
reached.
Using
up
cultivation
can
contribute
valorization
this
add
viability
regions
adequate
nutritional
composition
supplementation
humans
animals.
