Interactions between As and Se upon long exposure time and effects on nutrients translocation in golden flaxseed seedlings

Sousa, Giselle V.; Teles, Vânia L.G.; Pereira, Eduardo Gusmão; Modolo, Luzia V.; Costa, Letícia M.

doi:10.1016/j.jhazmat.2020.123565

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…Arsenic exists in variable oxidation states and chemical forms such as organoarsenicals (monomethylarsonate, dimethylarsinate, roxarsone) or as inorganic oxyanions (As( iii ) or As( v )). 2,3 The latter pose a significant risk for human health through tainted water sources, hence; drinking water advisories ( e.g. , Canada, WHO) have set limits to arsenic levels at 10 μg L −1 .…”

Section: Introductionmentioning

confidence: 99%

A pyridinium-modified chitosan-based adsorbent for arsenic removal via a coagulation-like methodology

2023

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Section: Introductionmentioning

confidence: 99%

A pyridinium-modified chitosan-based adsorbent for arsenic removal via a coagulation-like methodology

2023

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“…Arsenic is a highly toxic element to animals and plants and it is widely distributed in the environment [ 17 ]. Long-term exposure to arsenic contaminated drinking water, even at low levels of exposure, will contribute risk to human health [ 18 ], including skin cancer, stomach cancer, respiratory tract cancer, and extensive liver damage [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Bioflocculants from Flaxseed Gum and Fenugreek Gum for the Removal of Arsenicals from Water

Venegas-García

Wilson

2022

Materials

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Mucilage-based flocculants are an alternative to synthetic flocculants and their use in sustainable water treatment relates to their non-toxic and biodegradable nature. Mucilage extracted from flaxseed (FSG) and fenugreek seed (FGG) was evaluated as natural flocculants in a coagulation–flocculation (CF) process for arsenic removal, and were compared against a commercial xanthan gum (XG). Mucilage materials were characterized by spectroscopy (FT-IR, 13C NMR), point-of-zero charge (pHpzc) and thermogravimetric analysis (TGA). Box–Behnken design (BBD) with response surface methodology (RSM) was used to determine optimal conditions for arsenic removal for the CF process for three independent variables: coagulant dosage, flocculant dosage and settling time. Two anionic systems were tested: S1, roxarsone (organic arsenate 50 mg L−1) at pH 7 and S2 inorganic arsenate (inorganic arsenate 50 mg L−1) at pH 7.5. Variable arsenic removal (RE, %) was achieved: 92.0 (S1-FSG), 92.3 (S1-FGG), 92.8 (S1-XG), 77.0 (S2-FSG), 69.6 (S2-FGG) and 70.6 (S2-XG) based on the BBD optimization. An in situ kinetic method was used to investigate arsenic removal, where the pseudo-first-order model accounts for the kinetic process. The FSG and FGG materials offer a sustainable alternative for the controlled removal of arsenic in water using a facile CF treatment process with good efficiency, as compared with a commercial xanthan gum.

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Feasibility of cultivating Se-enriched crops using localized natural Se enrichment resources

Zhang,

Wang,

Wang

et al. 2025

Food Chemistry

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Interactions between As and Se upon long exposure time and effects on nutrients translocation in golden flaxseed seedlings

Cited by 8 publications

References 23 publications

A pyridinium-modified chitosan-based adsorbent for arsenic removal via a coagulation-like methodology

A pyridinium-modified chitosan-based adsorbent for arsenic removal via a coagulation-like methodology

Utilization of Bioflocculants from Flaxseed Gum and Fenugreek Gum for the Removal of Arsenicals from Water

Feasibility of cultivating Se-enriched crops using localized natural Se enrichment resources

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