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Ibuprofen Sorption to Coastal Plain Soils

Author:
Mitra, Siddhartha, Benfield, Beau
Source:
Water, air, and soil pollution 2018 v.229 no.9 pp. 295
ISSN:
0049-6979
Subject:
coastal plain soils, coastal plains, ibuprofen, mineralogy, soil heterogeneity, soil organic carbon, sorption, sorption isotherms, wastewater
Abstract:
Ibuprofen is commonly detected in onsite wastewater systems. Such onsite systems are abundant in coastal plain areas, globally. Coastal plain soils have unique mineralogy. Rapid subsurface transport may occur in coastal plain soils due to their characteristic permeable soils and seasonally high water tables. Laboratory batch sorption studies were conducted on Norfolk, Goldsboro, and Lynchburg, three archetypical coastal plain soils, with varying physicochemical properties, to evaluate ibuprofen sorption. Sorption distribution coefficients (KD values) across all three soils ranged from 0.63 to 1.26 L kg⁻¹. Sorption of ibuprofen to Norfolk and Goldsboro soils was able to be modeled using a Freundlich isotherm; however, the Lynchburg soil, was not, likely due to soil heterogeneity. In general, sorption of ibuprofen was influenced by soil organic carbon content.
Agid:
6090969