Insight into the binding characteristics of dissolved organic matter(DOM)and Fe(Ⅱ)/Mn(Ⅱ): Based on the spectroscopic and dialysis equilibrium analysis
Haishuo Wang,
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Xuefeng Ge,
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Shiyin Li
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et al.
Chemosphere,
Journal Year:
2024,
Volume and Issue:
362, P. 142672 - 142672
Published: June 22, 2024
Language: Английский
The effect of autochthonous metal ions and humic substances on landfill leachate ozonation: Reactive oxygen species and 3D fluorescence analysis
Separation and Purification Technology,
Journal Year:
2024,
Volume and Issue:
354, P. 129433 - 129433
Published: Aug. 31, 2024
Language: Английский
Strategies for Optimizing the Efficiency and Selectivity of Photocatalytic Aqueous CO2 Reduction: Catalyst Design and Operating Conditions
Nano Energy,
Journal Year:
2024,
Volume and Issue:
133, P. 110460 - 110460
Published: Nov. 9, 2024
Language: Английский
Effects of photodegradation on the composition characteristics and metal binding behavior of sediment-derived dissolved organic matter (SDOM) in Nansi Lake, China
Zhaoli Sun,
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Xin Yao,
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Dongling Sang
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et al.
Environmental Research,
Journal Year:
2024,
Volume and Issue:
261, P. 119682 - 119682
Published: July 26, 2024
Language: Английский
Scallop farming impacts on dissolved organic matter cycling in coastal waters: Regulation of the low molecular weight fraction
Marine Environmental Research,
Journal Year:
2024,
Volume and Issue:
202, P. 106796 - 106796
Published: Oct. 16, 2024
Language: Английский
Effect of soil-groundwater system on migration and transformation of organochlorine pesticides: A review
Haohao Li,
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Lin Huo,
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Rui Zhang
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et al.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
290, P. 117564 - 117564
Published: Dec. 18, 2024
Language: Английский
Investigation of the Distribution and Binding Affinity of Copper to Size-Fractioned Dissolved Organic Matter (DOM) in a Constructed Wetland
Ming-Yuan Hung,
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Wei-Hsiang Huang,
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Liang-Fong Hsu
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et al.
Separations,
Journal Year:
2024,
Volume and Issue:
11(6), P. 191 - 191
Published: June 19, 2024
This
study
investigated
the
distribution
and
binding
affinity
of
dissolved
copper
(Cu)
organic
carbon
(OC)
in
size-fractioned
matter
(DOM)
a
constructed
wetland
(CW).
Two
sites
were
studied:
one
at
inflow
(P-1)
within
(P-2).
The
DOMs
(<0.45
μm)
separated
into
six
size
fractions
using
cross-flow
ultrafiltration
system.
In
(P-2),
concentrations
(DOC)
increased
while
Cu
decreased.
high
molecular
weight
fraction
(1
kDa–0.45
μm,
HMW)
contained
most
OC
mass
(57.4–71.2%
averages).
On
other
hand,
was
almost
equally
distributed
HMW
low
(<1
kDa,
LMW)
with
mean
percentages
50.3–51.3%.
to
DOM
ratios
(CuBADOM)
74.9
±
24.0
μmol/g-C
site
P-1
17.3
2.6
P-2.
CuBADOM
decreased
wetlands
bulk
(p
<
0.001
p
=
0.073).
SUVA254
values
for
solution
2.54
0.15
1.68
0.18
L/mg-C/m,
humidification
index
(HIX)
1.74
0.16
2.09
0.19
P-2,
respectively.
Optical
indicators
suggested
that
process
aromaticity
but
humification
degree
DOM.
Furthermore,
positively
correlated
HIX
not
influent
Understanding
makes
it
possible
develop
strategies
mitigate
potential
effects
pollution
wetlands.
Language: Английский
Scallop Farming Impacts on Dissolved Organic Matter Cycling in Coastal Waters: Regulation of the Low Molecular Weight Fraction
Published: Jan. 1, 2024
Language: Английский
Influence of biochar amendment on the binding characteristics of dissolved organic matter from chicken manure compost with Cu(II): an integrated analysis using EEM-PARAFAC, 2D-COS, and HPSEC
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 13, 2024
Abstract
The
addition
of
biochar
(BC)
during
composting
significantly
influences
the
concentration
and
chemical
structure
dissolved
organic
matters
(DOM),
thereby
affecting
its
binding
properties
with
heavy
metals
(HMs).
This
study
examines
co-composting
chicken
manure
varying
BC
dosages,
specifically
0
wt%
(CK),
1
(T1),
2
(T2),
comparatively
analyzes
characteristics
between
compost-derived
DOM
copper
ions
(Cu(II)).
EEM-PARAFAC
analysis
identified
three
primary
components
in
DOM:
fulvic
acid-like
(C1),
humic
(C2),
protein-like
(C3)
components,
each
exhibiting
distinct
Cu(II)
properties.
complexation
constants
(logK)
for
these
increased
addition,
whereas
fraction
bound
sites
(f
values)
decreased,
indicating
that
BC-amended
compost
forms
more
stable
DOM-Cu(II)
complexes
but
fewer
available
sites.
2D-COS
synchronous
fluorescence
spectra
revealed
fulvic-like
peaks
were
sensitive
to
variations
across
all
types,
while
humic-like
substances
exhibited
a
stronger
preference
binding.
HPSEC
results
showed
broad
molecular
weight
(MW)
distributions
(100–300,000
Da)
DOM,
significant
decrease
medium
MW
regions
(1000-30,000
as
increased,
suggesting
fractions
are
particularly
binding,
leading
higher
weight-averaged
values
concentrations.
provides
new
insights
into
how
can
influence
behavior
HMs,
highlighting
potential
enhancing
HMs
immobilization
compost-amended
soils.
Language: Английский
Influence of Biochar Amendment on the Binding Characteristics of Dissolved Organic Matter from Chicken Manure Compost with Cu(II): An Integrated Analysis using EEM-PARAFAC, 2D-COS, and HPSEC
Waste and Biomass Valorization,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 14, 2024
Language: Английский