Pharmaceuticals effect and removal, at environmentally relevant concentrations, from sewage sludge during anaerobic digestion
| Autor: | Colin Hunter, Asma Alenzi, John A. Craft, Ania Escudero, Janice Spencer, Ole Pahl, Joanne Roberts |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Environmental Engineering Firmicutes Erythromycin Bioengineering 010501 environmental sciences 01 natural sciences Bioreactors 010608 biotechnology Clarithromycin medicine Food science Anaerobiosis Waste Management and Disposal 0105 earth and related environmental sciences biology Sewage Renewable Energy Sustainability and the Environment Chemistry Bacteroidetes General Medicine biology.organism_classification Anaerobic digestion Pharmaceutical Preparations Biofuels Euryarchaeota Digestion Methane Sludge medicine.drug |
| Zdroj: | Bioresource technology. 319 |
| ISSN: | 1873-2976 |
| Popis: | This paper investigates the performance of AD in the presence of high-risk pharmaceuticals found in sewage sludge and its removal capacity. The digestion process of synthetic sewage sludge was observed in two 7L glass reactors (D1 and D2) at 38 °C (OLR 1.3 gVS L-1 d-1 and HRT 43 d). Environmentally relevant pharmaceuticals (clarithromycin, clotrimazole, erythromycin, fluoxetine, ibuprofen, sertraline, simvastatin and tamoxifen) were added in D2 at predicted environmental (sludge) conditions. The results demonstrated that long-term presence of pharmaceuticals can affect AD and induce instability resulting in an accumulation of VFAs. This study showed a concurrent effect on AD microbial composition, increasing the percentage of Firmicutes (>70%) and decreasing the percentages of Bacteroidetes and Euryarchaeota ( However, it seems that anaerobic microorganisms offer enhanced removal of the antibiotics clarithromycin and erythromycin over aerobic techniques. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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