Selenite Adsorption and Desorption in Selected South Dakota Soils as a Function of pH and Other Oxyanions

Lee, Sang-Hun; Doolittle, James J.; Woodard, Howard J.

doi:10.1097/ss.0b013e31820a0ff6

Cited by 33 publications

(15 citation statements)

References 20 publications

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“…Selenite adsorption on kaolinite, smectite, and illite exhibited adsorption maxima in the pH range 3 to 5 and decreased with increasing solution pH (Goldberg and Glaubig, 1988;Missana et al, 2009). Similar to the behavior on Fe and Al oxides and clay minerals, selenite adsorption on soils from California, Iowa, Oklahoma, and South Dakota decreased with increasing soil solution pH (Neal et al, 1987;Goldberg and Glaubig, 1988;Goldberg et al, 2007;Lee et al, 2011).…”

mentioning

confidence: 64%

Modeling Selenite Adsorption Envelopes on Oxides, Clay Minerals, and Soils using the Triple Layer Model

Goldberg

2013

Soil Science Soc of Amer J

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All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Modeling Selenite Adsorption Envelopes on Oxides, Clay Minerals, and Soils using the Triple Layer Model Soil Chemistry S elenium is an essential micronutrient element for animals. The concentration range between deficiency and toxicity is very narrow. Elevated concentrations of Se in soils and waters can occur as a result of discharge from petroleum refineries and mining operations, disposal of fly ash and coal ash, and mineral oxidation and dissolution (Girling, 1984). Vegetation grown on seleniferous soils can become toxic to grazing animals (Lakin, 1961). Deaths and deformities of migratory waterfowl have been attributed to elevated concentrations of Se in agricultural drainage waters (Ohlendorf et al., 1986). In soil solution, the dominant inorganic Se species are: selenate, Se(VI), under oxidizing conditions and selenite, Se(IV), under more reducing conditions (Adriano, 1986). Selenate is considered to be the less toxic oxidation state (Fernandez et al., 1993). Redox transformation rates for inorganic Se species are slow so that both selenate and selenite often coexist in soil solution (Masscheleyn et al., 1990). Selenium adsorption has been investigated on a wide range of surfaces including: aluminum and iron oxides, clay minerals, and whole soils. Soil constituents that are significantly positively correlated with soil Se content include: extractable Al and Fe oxides and clay minerals (Lévesque, 1974). Selenate has been observed to adsorb to a much lesser extent than selenite on goethite (Balistrieri and Chao, 1987), hematite (Duc et al., 2003), and soils (Neal and Sposito, 1989). Sorption of both Se redox states on Fe oxides was greatest at pH 3 and decreased with increasing solution pH (Balistrieri and Chao, 1987; Parida et al., 1997; Duc et al., 2003). Selenite adsorption on a disordered Al hydroxide decreased as pH was

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confidence: 64%

Modeling Selenite Adsorption Envelopes on Oxides, Clay Minerals, and Soils using the Triple Layer Model

Goldberg

2013

Soil Science Soc of Amer J

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“…Other studies have claimed that P and Se compete for adsorption sites in soil, and that soils have greater capacity to absorb P than to absorb Se (Nakamaru and Sekine 2008;Stroud et al 2010). Phosphorus can reduce selenite adsorption on the soil surface and increase Se bioavailability (Lee et al 2011). Current literature does not clearly explain how P fertilizer applied with either selenate or selenite affects Se uptake and translocation in wheat and what kind of changes occur to Se fractions in soil; thus, we focused on this topic in the current study.…”

Section: Discussionmentioning

confidence: 99%

Selenium accumulation in wheat (Triticum aestivum L) as affected by coapplication of either selenite or selenate with phosphorus

Zhang

Dong

et al. 2017

Soil Science and Plant Nutrition

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The objectives of this pot experiment were to study the effects of P fertilizer applied with either selenate or selenite on (1) selenium (Se) uptake and translocation in wheat (Triticum aestivum L) and (2) Se fractions in calcareous soil. The experiment consisted of three factors: (1) amount of phosphorus (P) fertilizer (0, 1 and 2 g kg −1); (2) type of Se fertilizer (selenate and selenite); and (3) amount of Se fertilizer (0, 1 and 2 mg kg −1). The results indicate that P fertilizer significantly increased wheat biomass. Selenite significantly reduced wheat biomass, whereas the effects of selenate were not significant. In the selenite treatments, P fertilizer significantly reduced soil pH, causing declines in soluble soil Se and exchangeable Se and increases in iron (Fe) oxide-bound Se and organic matter-bound Se. The Se accumulation coefficient, the Se translocation coefficient and the Se content of wheat roots, stems, leaves and spikes all declined when P was applied to selenite-fertilized soil. In the selenate treatments, P application significantly reduced soil exchangeable Se, Fe oxide-bound Se and organic matter-bound Se. The wheat Se content, Se accumulation coefficient and Se translocation coefficient all increased when P fertilizer was applied to selenate-fertilized soil. In conclusion, P fertilizer activated Fe oxide-bound Se and organic matter-bound Se, resulting in an increase in wheat Se concentrations in selenate-fertilized, calcareous soil. In selenite-fertilized soil, however, P fertilizer reduced soil pH, thus promoting the transformation of soluble Se and exchangeable Se to either Fe oxide-bound Se or organic matter-bound Se. These changes inhibited Se absorption and translocation in selenite-fertilized wheat, thus reducing Se uptake by wheat.

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“…The selenite sorption in soils and minerals has been reported to decrease with increasing pH by several authors (e.g. Lee et al, 2011;Su and Suarez, 2000;Balistieri and Chao, 1990;Missana et al, 2009). In our study, the maximum sorption of selenite in all studied bog layers (surface moss e 6.5e7.0 m) was detected between pH~3.0e4.0, and an increase in the experimental K d values was observed between pH 2 and 3.…”

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confidence: 96%

The microbial impact on the sorption behaviour of selenite in an acidic, nutrient-poor boreal bog

Lusa

Bomberg

Aromaa

et al. 2015

Journal of Environmental Radioactivity

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Selenite Adsorption and Desorption in Selected South Dakota Soils as a Function of pH and Other Oxyanions

Cited by 33 publications

References 20 publications

Modeling Selenite Adsorption Envelopes on Oxides, Clay Minerals, and Soils using the Triple Layer Model

Modeling Selenite Adsorption Envelopes on Oxides, Clay Minerals, and Soils using the Triple Layer Model

Selenium accumulation in wheat (Triticum aestivum L) as affected by coapplication of either selenite or selenate with phosphorus

The microbial impact on the sorption behaviour of selenite in an acidic, nutrient-poor boreal bog

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