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- W4368367073 abstract "Pharmaceutically active compounds (PhACs) enter soil with organic substrates such as manure. Such complex substrates differently affect PhACs’ soil sorption. To elucidate the effects, batch experiments were conducted using five selected chemicals as model constituents. Urea, KH2PO4, acetic acid, phenol and nonadecanoic acid (C:19) altered the sorption strength and/or nonlinearity of sulfadiazine, caffeine and atenolol in a topsoil. The nonlinear Freundlich model best described sorption. Overall, the PhACs’ sorption coefficients increased in the sequence urea&lt;phosphate&lt;phenol&lt;C:19&lt;acetic acid. The sorption nonlinearity also increased in most cases. The effects on sulfadiazine and caffeine were rather similar, but in many cases different from atenolol. Phosphate mobilized sulfadiazine and caffeine and urea mobilized sulfadiazine, which was explained by sorption competition resulting from specific preference of similar sorption sites. Soil sorbed phenol strongly increased the sorption of all three PhACs; phenolic functional groups are preferred sorption sites of PhACs in soil. The large increase in sorption of all PhACs by acetic acid was attributed to a loosening of the soil organic matter and thus the creation of additional sorption sites. The effect of C:19 fatty acid, however, was inconsistent. These results help to better understand the sorption of PhACs in mixtures of soil and manure." @default.
- W4368367073 created "2023-05-05" @default.
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- W4368367073 date "2023-05-03" @default.
- W4368367073 modified "2023-09-25" @default.
- W4368367073 title "Tracing the Influence of Manure as a Complex Mixture on the Soil Sorption of Pharmaceuticals Back to Selected Chemical Constituents" @default.
- W4368367073 doi "https://doi.org/10.20944/preprints202305.0112.v1" @default.
- W4368367073 hasPublicationYear "2023" @default.
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