New strategies, such as biochar soil amendment, are continuously developed to restore the agricultural environment from the adverse effects of agrochemicals. The sorption efficiency of a biochar depends on the specific raw materials and pyrolysis variables applied, such as temperature and heating time, that shape its physico-chemical properties. In this study, the sorption capacity of two biochars obtained from coppiced hardwoods at two different pyrolysis temperatures ( 6 5 0 C and 1100 C, denominated BCLT and BCHT, respectively) was assessed for Lumax®, a pre-emergence selective herbicide used for maize cultivation. Lumax® is composed of S-metolachlor (MTC), terbuthylazine (TBZ), and mesotrione ( M S T ) , therefore the sorption behaviour of active ingredients, alone or mixed as in the commercial formulation, was studied on two biochar samples to identify the best product to mitigate Lumax® pollution. Our results show that, although biochar performance depends on the physicochemicals properties of both the biochar and the pollutants, B C H T was the most suitable in retaining the Lumax® active ingredients, likely due to its high aromaticity.

Assessment of biochars obtained at two different pyrolysis temperatures to mitigate pollution due to Lumax® / Pinna, M. V.; Baronti, S.; Liguori, F.; Pusino, A.. - In: FRESENIUS ENVIRONMENTAL BULLETIN. - ISSN 1018-4619. - 29:6(2020), pp. 4497-4504.

Assessment of biochars obtained at two different pyrolysis temperatures to mitigate pollution due to Lumax®

Pinna M. V.
;
Pusino A.
2020-01-01

Abstract

New strategies, such as biochar soil amendment, are continuously developed to restore the agricultural environment from the adverse effects of agrochemicals. The sorption efficiency of a biochar depends on the specific raw materials and pyrolysis variables applied, such as temperature and heating time, that shape its physico-chemical properties. In this study, the sorption capacity of two biochars obtained from coppiced hardwoods at two different pyrolysis temperatures ( 6 5 0 C and 1100 C, denominated BCLT and BCHT, respectively) was assessed for Lumax®, a pre-emergence selective herbicide used for maize cultivation. Lumax® is composed of S-metolachlor (MTC), terbuthylazine (TBZ), and mesotrione ( M S T ) , therefore the sorption behaviour of active ingredients, alone or mixed as in the commercial formulation, was studied on two biochar samples to identify the best product to mitigate Lumax® pollution. Our results show that, although biochar performance depends on the physicochemicals properties of both the biochar and the pollutants, B C H T was the most suitable in retaining the Lumax® active ingredients, likely due to its high aromaticity.
2020
Assessment of biochars obtained at two different pyrolysis temperatures to mitigate pollution due to Lumax® / Pinna, M. V.; Baronti, S.; Liguori, F.; Pusino, A.. - In: FRESENIUS ENVIRONMENTAL BULLETIN. - ISSN 1018-4619. - 29:6(2020), pp. 4497-4504.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/240625
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