Effects of sterile storage, cation saturation and substrate additions on the degradability and extractability of nonylphenol and phenanthrene in soil

Shchegolikhina, Anastasia; Marschner, Bernd

doi:10.1016/j.chemosphere.2013.08.006

“…For this experiment, soils previously loaded with 1 g Phe g -1 from the sorption experiment were subjected to a sequential desorption. For all cases, the recovery of the Phe from the samples ranged from 90-99%, being a good representative extraction method (Shchegolikhina et al 2013). As expected, sand sorption of phenantrene was very labile, so almost the total Phe was extractable with water ( Fig.…”

Section: Desorption Of 14 C-labelled Phenantrenesupporting

confidence: 60%

“…For this experiment we selected the samples loaded with Phe from the sorption experiment after the interaction. We used the method reported in Shchegolikhina and Marschner (2013), with the only modification of replacing up to 90% of the solution between each step. So we extracted the Phe retained in the soil during the sorption experiment for the dose 1 μg Phe g -1 soil with six sequential cycles of water-ethanol.…”

Section: Phenanthrene Desorption Experimentsmentioning

confidence: 99%

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The contamination of soils and waters with organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), affect a large number of sites worldwide that need remediation. In this context soils amendments can be used to immobilise PAHs while maintaining soil functioning, with biochar being a promising amendment. In this experiment phenantrene (Phe) was used as a frequent PAH contaminating soils and we studied the effect of three biochars at 1% applications to three different substrates, two agricultural topsoils and pure sand. We evaluated the changes in soil properties, sorption-desorption of Phe, and mineralisation of Phe in all treatments. Phe in pure sand was effectively sorbed to olive pruning (OBC) and rice husk (RBC) biochars, but pine biochar (PBC) was not as effective. In the soils, OBC and RBC only increased sorption of Phe in the silty soil. Desorption was affected by biochar application, RBC and OBC decreased water soluble Phe independently of the soil, which may be useful in preventing leaching of Phe into natural waters. Contrastingly, OBC and RBC slightly decreased the mineralisation of Phe in the soils, thus indicating lower bioavailability of the contaminant. Overall, biochar effects in the two tested soils were low, most likely due to the rather high soil organic C (SOC) contents of 2.2 and 2.8% with Koc values in the same range as those of the biochars. However, OBC and RBC additions can substantially increase adsorption of Phe in soils poor in SOC.

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“…For this experiment we selected the samples loaded with Phe from the sorption experiment after the interaction. We used the method reported in Shchegolikhina & Marschner (2013) , with the only modification of replacing up to 90% of the solution between each step. So we extracted the Phe retained in the soil during the sorption experiment for the dose 1 µg Phe g −1 soil with six sequential cycles of water-ethanol.…”

Section: Methodsmentioning

confidence: 99%

The effect of biochar amendments on phenanthrene sorption, desorption and mineralisation in different soils

Moreno-Jiménez

¹

,

Aceña-Heras

²

,

Frišták

³

et al. 2018

PeerJ

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The contamination of soils and waters with organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), affect a large number of sites worldwide that need remediation. In this context soils amendments can be used to immobilise PAHs while maintaining soil functioning, with biochar being a promising amendment. In this experiment, phenantrene (Phe) was used as a frequent PAH contaminating soils and we studied the effect of three biochars at 1% applications to three different substrates, two agricultural topsoils and pure sand. We evaluated the changes in soil properties, sorption-desorption of Phe, and mineralisation of Phe in all treatments. Phe in pure sand was effectively sorbed to olive pruning (OBC) and rice husk (RBC) biochars, but pine biochar (PBC) was not as effective. In the soils, OBC and RBC only increased sorption of Phe in the silty soil. Desorption was affected by biochar application, RBC and OBC decreased water soluble Phe independently of the soil, which may be useful in preventing leaching of Phe into natural waters. Contrastingly, OBC and RBC slightly decreased the mineralisation of Phe in the soils, thus indicating lower bioavailability of the contaminant. Overall, biochar effects in the two tested soils were low, most likely due to the rather high soil organic C (SOC) contents of 2.2 and 2.8% with Koc values in the same range as those of the biochars. However, OBC and RBC additions can substantially increase adsorption of Phe in soils poor in SOC.

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“…The 156 remaining supernatant was replaced in its majority by new solution. 157 Phenanthrene mineralisation experiment 158 For this experiment, we used the experimental setup described in Shchegolikhina et al (2013). 159 20 g of soil were placed inside a closed vessel.…”

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Peer Review #3 of "The effect of biochar amendments on phenanthrene sorption, desorption and mineralisation in different soils (v0.1)"

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The contamination of soils and waters with organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs), affect a large number of sites worldwide that need remediation. In this context soils amendments can be used to immobilise PAHs while maintaining soil functioning, with biochar being a promising amendment. In this experiment phenantrene (Phe) was used as a frequent PAH contaminating soils and we studied the effect of three biochars at 1% applications to three different substrates, two agricultural topsoils and pure sand. We evaluated the changes in soil properties, sorption-desorption of Phe, and mineralisation of Phe in all treatments. Phe in pure sand was effectively sorbed to olive pruning (OBC) and rice husk (RBC) biochars, but pine biochar (PBC) was not as effective. In the soils, OBC and RBC only increased sorption of Phe in the silty soil. Desorption was affected by biochar application, RBC and OBC decreased water soluble Phe independently of the soil, which may be useful in preventing leaching of Phe into natural waters.Contrastingly, OBC and RBC slightly decreased the mineralisation of Phe in the soils, thus indicating lower bioavailability of the contaminant. Overall, biochar effects in the two tested soils were low, most likely due to the rather high soil organic C (SOC) contents of 2.2 and 2.8% with Koc values in the same range as those of the biochars. However, OBC and RBC additions can substantially increase adsorption of Phe in soils poor in SOC.PeerJ reviewing PDF | Abstract 18 19 The contamination of soils and waters with organic pollutants, such as polycyclic aromatic 20 hydrocarbons (PAHs), affect a large number of sites worldwide that need remediation. In this 21 context soils amendments can be used to immobilise PAHs while maintaining soil functioning, 22 with biochar being a promising amendment. In this experiment phenantrene (Phe) was used as a 23 frequent PAH contaminating soils and we studied the effect of three biochars at 1% applications 24 to three different substrates, two agricultural topsoils and pure sand. We evaluated the changes in 25 soil properties, sorption-desorption of Phe, and mineralisation of Phe in all treatments. Phe in 26 pure sand was effectively sorbed to olive pruning (OBC) and rice husk (RBC) biochars, but pine 27 biochar (PBC) was not as effective. In the soils, OBC and RBC only increased sorption of Phe in 28 the silty soil. Desorption was affected by biochar application, RBC and OBC decreased water 29 soluble Phe independently of the soil, which may be useful in preventing leaching of Phe into 30 natural waters. Contrastingly, OBC and RBC slightly decreased the mineralisation of Phe in the 31 soils, thus indicating lower bioavailability of the contaminant. Overall, biochar effects in the two 32 tested soils were low, most likely due to the rather high soil organic C (SOC) contents of 2.2 and 33 2.8% with Koc values in the same range as those of the biochars. However, OBC and RBC 34 additions can substantially increase adsorption of Phe in soils poor in...

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Effects of sterile storage, cation saturation and substrate additions on the degradability and extractability of nonylphenol and phenanthrene in soil

Cited by 6 publications

References 24 publications

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The effect of biochar amendments on phenanthrene sorption, desorption and mineralisation in different soils

Peer Review #3 of "The effect of biochar amendments on phenanthrene sorption, desorption and mineralisation in different soils (v0.1)"

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