13C/12C composition, a novel parameter to study the downward migration of paper sludge in soils

Eric Lichtfouse (1) , Karyne Rogers , Cécile Payet , Jean-Christophe Renat

1 ASD - Agronomy for Sustainable Development

δ13C values of crop and forest soils were measured 8 years after disposal of paper sewage sludge. The carbon transfer from paper sludge downward to the first humic layer is evidenced by a 13C-enrichnient of up to + 5.6‰ due to the input of 13C-enriched sludge carbonates. 13C/12C composition is thus a novel, sensitive parameter to follow the downward transfer of paper sludge carbon.

Mots clés: 13C; paper sludges; soil; pollution; migration

Domaines: Science des sols; Milieux et Changements globaux

Eric Lichtfouse, Karyne Rogers, Cécile Payet, Jean-Christophe Renat. 13C/12C composition, a novel parameter to study the downward migration of paper sludge in soils. Geochemical Transactions, 2002, 3, pp.48-50. ⟨10.1186/1467-4866-3-48⟩. ⟨hal-00263862⟩