The impact of variable temperatures on the redox conditions and the behaviour of pharmaceutical residues during artificial recharge

摘要: Summary The redox conditions below an artificial recharge pond in Berlin were largely dependent on seasonal temperature changes of 0–24 °C the infiltrate. Aerobic prevailed winter, when temperatures low, while anaerobic reached exceeded 14 °C. In contrast to changes, cyclic between saturated or unsaturated had only a minor effect conditions. However, intrusion gaseous oxygen during caused temporary reinforced increase oxidation particulate organic matter. variable behaviour number pharmaceutically active compounds, namely carbamazepine, phenazone and several phenazone-type PhACs, was investigated. Phenazone is sensitive generally fully degraded before reaching first groundwater well, as long present. When turned anaerobic, not eliminated. 1-Acetyl-1-methyl-2-dimethyl-oxymoyl-2-phenylhydrazide (AMDOPH) carbamazepine are very persistent drug residues. results suggest that AMDOPH may be slightly degradable under aerobic too, but further studies will needed verify this statement.