Chlorpyrifos-methyl solubilisation by humic acids used as bio-surfactants extracted from lignocelluloses and kitchen wastes
Articolo
Data di Pubblicazione:
2016
Citazione:
Chlorpyrifos-methyl solubilisation by humic acids used as bio-surfactants extracted from lignocelluloses and kitchen wastes / B. Scaglia, A. Baglieri, F. Tambone, M. Gennari, F. Adani. - In: CHEMOSPHERE. - ISSN 0045-6535. - 159:(2016), pp. 208-213. [10.1016/j.chemosphere.2016.06.008]
Abstract:
Chlorpyrifos-methyl (CLP-m) is a widely used organophosphate insecticide that can accumulate in soil and become toxic to humans. CLP-m can be removed from soil by its solubilisation using synthetic surfactants. However, synthetic surfactants can accumulate in soil causing contamination phenomena themselves. Bio-surfactants can be used as an alternative to synthetic ones, reducing costs and environmental issues.In this work, humic acid (HA) extracted from raw biomasses, i.e. lignocelluloses (HAL) and lignocelluloses plus kitchen food waste (HALF), corresponding composts (C) (HALC and HALFC) and leonardite (HAc), were tested in comparison with commercial surfactants, i.e. SDS, Tween 20 and DHAB, to solubilize CLP-m.Results obtained indicated that only biomass-derived HA, composted biomass-derived HA, and SDS solubilized CLP-m: SDS = 0.006; HAL = 0.007; HALC = 0.009 g; HALF = 0.025; HALFC = 0.024) (g CLP-m g-1 surfactant).Lignocelluloses HAs (HAL, HALF) solubilized CLP-m just as well as SDS while lignocellulosic plus kitchen food waste HA (HALF, HALFC) showed a three times higher CLP-m solubilisation capability. This difference was attributed to the higher concentration of alkyl-Carbon that creates strong links with CLP-m in the hydrophobic micelle-core of the surfactants.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
biosurfactant; chlorpyrifos-methyl; humic acid; organic waste; sds; chlorpyrifos; environmental restoration and remediation; lignin; polysorbates; soil; surface-active agents; biomass; garbage; humic substances; environmental chemistry; chemistry (all)
Elenco autori:
B. Scaglia, A. Baglieri, F. Tambone, M. Gennari, F. Adani
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