Compost humic acid-like (cHAL) polymeric matter (MW 15610), isolated in 12% yield from food and green waste compost, exhibits very good surfactant properties in aqueous solution: i.e., critical micelle concentration (cmc) = 403 mg/L and surface tension at cmc = 36.1 mN/m. Values of cmc are confirmed also by conductivity and phenanthrene solubility measurements. These results, compared with those for other major commercial and research surfactants, propose MAL as a competitive low-cost biosurfactant.
Titolo: | Chemicals from Wastes : Compost-Derived Humic Acid–Like Matter as Surfactant |
Autori: | |
Settore Scientifico Disciplinare: | Settore AGR/13 - Chimica Agraria |
Data di pubblicazione: | 2006 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | 10.1021/es051637r |
Appare nelle tipologie: | 01 - Articolo su periodico |
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