Grabic, Roman published the artcileDesorption of pharmaceuticals and illicit drugs from different stabilized sludge types across pH, Application In Synthesis of 137862-53-4, the publication is Water Research (2022), 118651, database is CAplus and MEDLINE.
Pharmaceutical and illicit drug residues in sewage sludge may present important risks following direct application to agricultural soils, potentially resulting in uptake by plants. Leaching/desorption tests were performed on different types of stabilized sewage sludge originating from multiple treatment technologies in the Slovak Republic. Acid rain and base-rich condition of soil with different pH conditions were simulated to model the effect of widely varying pH (pH 2, 4, 7, 9, and 12) on the leaching/desorption of pharmaceuticals and illicit drugs. Twenty-nine of 93 target analytes were found above the limit of quantification in sludge or associated leachates. Total desorbed amounts of pharmaceuticals and illicit drugs ranged from 810 to 4000μg/kg, and 110 to 3600μg/kg of the dry mass of anaerobic and aerobic sludge, resp. Desorbed fractions were calculated as these values are normalized to initial sludge concentration and, therefore, were more suitable for qual. description of the behavior of individual compounds Using principal component anal., qual. anal. of the desorbed fraction confirmed the differences among sludge types, pharmaceuticals, and desorption pH. Desorbed fractions could not be related to the octanol/water distribution coefficient Desorbed fractions also did not reflect the expected ionization of studied mols. unless converted into their relative values. Generally, the lowest mobility was observed within the environmentally relevant pH range of 4-9, and high pH generally resulted in high desorption, especially in anaerobically stabilized sludges.
Water Research published new progress about 137862-53-4. 137862-53-4 belongs to amides-buliding-blocks, auxiliary class GPCR/G Protein,Angiotensin Receptor, name is (S)-2-(N-((2′-(1H-Tetrazol-5-yl)-[1,1′-biphenyl]-4-yl)methyl)pentanamido)-3-methylbutanoic acid, and the molecular formula is C24H29N5O3, Application In Synthesis of 137862-53-4.
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