Research Square (Research Square),
Год журнала:
2021,
Номер
unknown
Опубликована: Дек. 20, 2021
Abstract
Ly
@
FeZn
layered
double
hydroxides
(LDHs)
controllable
fabrication
based
on
Box-Behnken
Design
(BBD)
model
was
fabricated,
and
presented
stable
efficient
removal
performance
for
Ciprofloxacin
(CIP),
Norfloxacin
(NOR)
Ofloxacin
(OFL)
removal.
It
should
be
noted
that
had
different
adsorption
behavior
towards
CIP,
NOR
OFL.
Furthermore,
the
characterized
by
SEM,
XRD,
FT-IR
XPS.
Results
revealed
optimized
condition
(temperature
of
60
°C,
Fe
/
Zn
molar
ratio
0.5
lysine
dosage
5.8
mmol)
removing
efficient.
The
highest
capacity
OFL
were
193.83,
190.20
62.12
mg/g,
respectively.
Adsorption
kinetics
both
CIP
well
simulated
with
pseudo-first-order
kinetic
model,
while
well-described
pseudo-second-order.
Moreover,
thermodynamics
indicated
processes
exothermal,
feasible
spontaneous.
worth
noting
mechanism
synergistic
reaction
electrostatic
attraction,
chemical
bonding
flocculation.
On
other
side,
relatively
low,
only
attraction.
ACS Omega,
Год журнала:
2022,
Номер
7(12), С. 10550 - 10558
Опубликована: Март 21, 2022
Hydroxyapatite
(HA)
had
the
effect
of
maintaining
pH
balance
reaction
system
and
promoting
enzyme
activity.
In
this
work,
hydroxyapatite
was
synthesized
by
coprecipitation
characterized
for
biohydrogen
(bioH2)
production
from
glucose.
The
highest
bioH2
yield
obtained
182.33
±
2.41
mL/g
glucose,
amended
with
an
optimal
dosage
400
mg/L
HA,
which
a
55.80%
higher
compared
control
group
without
any
addition.
results
indicated
that
HA
facilitated
deterioration
organic
substances
increased
concentration
soluble
microbial
products
(SMPs).
Microbial
community
analysis
revealed
significantly
abundance
Firmicutes
35.27%
(0
mg/L,
HA)
to
76.41%
(400
HA),
played
essential
role
in
generation.
particular,
Clostridium
sensu
stricto
1
15.33%
45.17%
became
dominant
bacteria.
also
likely
improves
wastewater
practice.
Fermentation,
Год журнала:
2023,
Номер
9(1), С. 60 - 60
Опубликована: Янв. 11, 2023
In
order
to
partially
mimic
the
efficient
lignocellulose
pretreatment
process
performed
naturally
in
gut
system
of
Pachnoda
marginata
larvae,
two
wheat
straw
pretreatments
were
evaluated:
a
mechanical
via
cutting
into
different
sizes
and
an
alkaline
with
calcium
hydroxide.
After
pretreatment,
enrichment
cultures
on
at
pH
inoculated
kept
mesophilic
conditions
over
45
days.
The
methanogenic
community
was
composed
mainly
Methanomicrobiaceae
Methanosarcinaceae
families.
combined
size
reduction
best
condition
for
methane
production.
positive
effect
higher
midgut
cultures,
increasing
production
by
192%,
while
hindgut
increased
only
149%
when
compared
non-pretreated
straw.
Scanning
electron
microscopy
(SEM)
showed
that
modified
surface
fibers,
which
promoted
biofilm
formation
microbial
growth.
derived
from
larva
microbiome
able
degrade
larger
1
mm
treated
smaller
250
µm
but
same
efficiency.
combination
resulted
increased,
yet
not
superimposed,
yield.
Chemical Engineering Journal,
Год журнала:
2022,
Номер
454, С. 140294 - 140294
Опубликована: Ноя. 11, 2022
•
Ca
2+
addition
doubled
the
SRT
and
increased
hydrolysis
from
29%
to
67%
Methanization
20%
46%
by
adding
2+.
effect
on
methane
production
depends
Ca:COD
(optimum
0.03
–
0.05,
limit
0.08)
Phosphorus
removal
38%
61%
UASB
reactor.
was
captured
bicarbonate,
limiting
x
(PO
4
)
y
formation
struvite
dissolution.
Cow
manure
has
potential
serve
as
a
sustainable
secondary
fuel
phosphorus
resource
cut
our
reliance
finite
primary
resources.
The
efficient
valorization
of
cow
faces
compositional
challenges
because
high
solids
content,
lack
soluble
phosphorus,
fine
particles
being
main
species
bicarbonate
concentrations.
Addition
calcium
could
result
in
higher
conversion
phosphate.
To
investigate
this,
digested
two
up-flow
anaerobic
sludge
blanket
reactors
for
456
days,
one
with
without
CaCl
2
addition.
A
positive
found
(29%
calcium),
(136
L-CH
kgVS
-1
301
calcium)
bed
development.
Although
added
3:1
ratio
it
did
not
recrystallization
Instead,
precipitated
carbonate,
which
further
induced
additional
through
production.
Still,
caused
better
phosphorous
(from
61%),
is
attributed
enhanced
capturing
accumulating
both
carbonate
fines.
Higher
improved
retention
enables
manure.
access
resources
this
technology
can
contribute
circularity
agriculture
save
natural
