Hemp-Based Materials for Metal Removal

Morin‐Crini, Nadia; Loiacono, Sonia; Placet, Vincent; Torri, Giangiacomo; Bradu, Corina; Kostić, Mirjana; Cosentino, Cesare; Chanet, Gilles; Lichtfouse, Éric; Crini, Grégorio

doi:10.1007/978-3-319-92162-4_1

Cited by 15 publications

(12 citation statements)

References 111 publications

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“…However, these previously published works focused on the removal of only one or two metals at a time using hemp in fibre form. Recently, Crini's group proposed the use of a hemp-based material in felt form to treat polymetallic aqueous solutions, containing a mixture of six metals, namely Cd, Co, Cu, Mn, Ni and Zn (Bugnet et al 2017a, b;Loiacono et al 2017aLoiacono et al , b, c, 2018. These six metals were studied due to their common presence in discharge waters from the metal industry.…”

Section: Hemp-based Materials As Biosorbentsmentioning

confidence: 99%

“…This article is an abridged version of the chapter published by Morin-Crini et al (2018) in the series Environmental Chemistry for a Sustainable World.…”

Section: Introductionmentioning

confidence: 99%

“…These materials are interesting due to the fact that they are abundant in nature, available in large quantities, inexpensive, and may have potential as biosorbent materials due to their physicochemical characteristics and particular structure (Volesky 2004;Blackburn 2004;Crini 2005Crini , 2006. Abundant data can be found in the literature summarized in Morin-Crini et al (2018). Actually, numerous works are being conducted on the use of hempbased materials as biosorbents.…”

Section: Introductionmentioning

confidence: 99%

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Hemp-based adsorbents for sequestration of metals: a review

et al. 2018

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et al.. Hempbased adsorbents for sequestration of metals: a review. AbstractWith the increasing focus on renewable materials and sustainability issues, the development of non-conventional materials from natural resources and possessing complexing properties is currently an area of extensive research due to their potential applications in biosorption processes for pollutant removal. Among them, the hemp plant (Cannabis sativa), an annual high yielding industrial crop grown for its fibres and seeds, is one of the most promising materials for biosorption of metal ions from diluted waste streams. In this review, an extensive list of hemp-based biosorbent literature has been compiled and discussed. After a brief description of hemp and its properties and applications, the review gives a general overview of liquid-solid biosorption processes for metal sequestration from aqueous solutions onto hemp-based materials. Fig. 1 Hemp field (a) and dioecious male plant (b)

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Section: Hemp-based Materials As Biosorbentsmentioning

confidence: 99%

“…This article is an abridged version of the chapter published by Morin-Crini et al (2018) in the series Environmental Chemistry for a Sustainable World.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hemp-based adsorbents for sequestration of metals: a review

et al. 2018

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“…18 However, native β-CD is water soluble and must be processed into water-insoluble polymers by crosslinking before it can be used for contaminant removal. 19,20 Although epichlorohydrin (EPI) has been the most extensively utilized crosslinker in the production of β-CD polymer, it has a major drawback in that it produces toxic and carcinogenic byproducts in the β-CD crosslinking process. 16 It would be desirable to use a nontoxic crosslinker for β-CD polymerization.…”

Section: Introductionmentioning

confidence: 99%

Branched polyethylenimine‐polyethylene glycol‐β‐cyclodextrin polymers for efficient removal of bisphenol A and copper from wastewater

Lee

Kwak

2019

J of Applied Polymer Sci

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The present study reports on the development of water-insoluble polymers including β-cyclodextrin (β-CD), polyethylene glycol (PEG), and branched polyethylenimine (b-PEI) denoted here as X-CD, for efficient removal of bisphenol A (BPA) and copper ions (Cu(II)) from wastewater. Fourier-transform infrared spectroscopy, elemental analysis, thermogravimetric analysis, and differential scanning calorimetry results indicate that β-CD was successfully linked to b-PEI and PEG. The adsorption kinetics of BPA and Cu(II) were found to follow a pseudo-second-order model. Adsorption isotherm data showed good correlation of BPA and Cu(II) with the Langmuir isotherm models. In regeneration tests, using ethanol and DI water (pH 2) washing, X-CD exhibited sufficient BPA and Cu(II) recovery efficiency even after the fourth cycle. Furthermore, the adsorption performance of X-CD was unaffected by co-existing substances. The results demonstrate simple and environmentally friendly crosslinking without toxic/carcinogenic byproducts, and the efficient removal of endocrine disrupting chemicals and heavy metals from aquatic environments.

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“…However, applications in environmental chemistry are rare. Recently, hemp in fibre or felt forms has been proposed for metal removal from aqueous solutions (Morin-Crini et al., 2018; Pejić et al., 2011; Tofan et al., 2016, 2015; Vukčević et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

Hemp to limit diffusion of difenoconazole in vegetable garden soils

Léchenault-Bergerot

Morin‐Crini

Rocchi

et al. 2019

Heliyon

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Triazole molecules are used to manage invasive aspergillosis, a fungal infection mainly due to Aspergillus fumigatus . A. fumigatus is not a phytopathogen, but, as it is widespread in soils, triazole fungicides have an unintended impact on it, selecting resistant populations’ in environment. Thus, to maintain our ability to control fungal infections, whether in human health or agriculture, reduce the impact of the use of triazoles in the environment is important, notably limiting their diffusion in soils. Here we tested a hemp-based material as adsorbent to limit the spread of difenoconazole, a triazole fungicide, in vegetable soils. We studied the effects of contact time, material dose, difenoconazole concentration, and organic content of the soil using batch mode and percolation methods. Batch experiments showed that the material exhibited high adsorption capacities toward difenoconazole. Removal from the soil water increased from 46.6% using 0.35 g hemp per kg of soil to 77.0% using 1.75 g hemp per kg, for a contact time of 15 min and an initial difenoconazole concentration of 1.2 mg/L. For a contact time of 240 min, the removal was 93.5%. Percolation experiments showed that the quantity of difenoconazole removed was greater than the amount obtained by batch method: 41.9% of removal with only one passes of solution at a concentration of 12 mg/L is obtained through percolation technique whereas, with similar conditions, only 20% of removal is obtained by batch method, i.e. after 1 min of contact. The removal was strongly dependent on the number of passes: the values increased from 57.0% to 91.0% with increasing the number of passes from 1 to 15. Addition of hemp to soils allows to remove efficiently the difenoconazole fungicide from soil water. Hemp-based felt is a new and safe adsorbent that can be applied in agriculture to limit crop contamination.

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Hemp-Based Materials for Metal Removal

Cited by 15 publications

References 111 publications

Hemp-based adsorbents for sequestration of metals: a review

Hemp-based adsorbents for sequestration of metals: a review

Branched polyethylenimine‐polyethylene glycol‐β‐cyclodextrin polymers for efficient removal of bisphenol A and copper from wastewater

Hemp to limit diffusion of difenoconazole in vegetable garden soils

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