Removal of pharmaceutical metabolites in wastewater ozonation including their fate in different post-treatments
| Autor: | Jeppe Bregendahl, Kai Bester, Michael Stapf, Suman Kharel, Josefine Nilsson, Michael Cimbritz, Robert Sehlén, Ulf Miehe, Maja Ekblad, Per Falås |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Ozone 010504 meteorology & atmospheric sciences Microbial metabolism 010501 environmental sciences Wastewater 01 natural sciences Waste Disposal Fluid Water Purification chemistry.chemical_compound medicine Environmental Chemistry Humans Waste Management and Disposal 0105 earth and related environmental sciences Chemistry Pollution Filter (aquarium) Activated sludge Pharmaceutical Preparations Environmental chemistry Constructed wetland Water treatment Water Pollutants Chemical Activated carbon medicine.drug |
| Zdroj: | Kharel, S, Stapf, M, Miehe, U, Ekblad, M, Cimbritz, M, Falås, P, Nilsson, J, Sehlén, R, Bregendahl, J & Bester, K 2021, ' Removal of pharmaceutical metabolites in wastewater ozonation including their fate in different post-treatments ', Science of the Total Environment, vol. 759, 143989 . https://doi.org/10.1016/j.scitotenv.2020.143989 |
| DOI: | 10.1016/j.scitotenv.2020.143989 |
| Popis: | Advanced treatment technologies for the removal of pharmaceuticals and other organic micropollutants inWWTPs primarily target the removal of parent compounds. Nevertheless, the removal of metabolites originatingfrom human- or microbial metabolism during biological treatment needs comparable consideration, as some ofthem might be present in high concentrations and contribute to toxicity.This study was conducted to elucidate the removal of human and microbial metabolites of pharmaceuticals as afunction of the specific ozone dose. Ozonation was performed on four sites with two pilot- and two full-scaleplants operated downstream of conventional activated sludge plants. The ozone reactivity of all metabolites(expressed as the ozone dose to remove 90% of the compound/decadic ozone dose) was lower than those oftheir parent compounds. The decadic ozone dose was 1.0, 1.3 and 1.1 mg O3/mg DOC for Epoxy-carbamazepine,Di-OH-carbamazepine and N-Desmethyl tramadol, respectively.20–40% of the remaining metabolites were removed in a polishing sand/BAC-filter (biological activated carbon).Similar removal was observed for Epoxy-carbamazepine, Di-OH-carbamazepine and Hydroxy-diclofenac in aconstructed wetland. However, the sand/anthracite filter had no effect. All four metabolites were removed in aGAC (granulated activated carbon) filter. |
| Databáze: | OpenAIRE |
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