The influence of solid-liquid coefficient in the fate of pharmaceuticals and personal care products in aerobic wastewater treatment
| Autor: | Tais Cristina Filippe, Marcelo Real Prado, Júlio César Rodrigues de Azevedo, Rafael Duarte Kramer |
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| Rok vydání: | 2018 |
| Předmět: |
Health
Toxicology and Mutagenesis 0208 environmental biotechnology Sewage 02 engineering and technology Wastewater 010501 environmental sciences Waste Disposal Fluid 01 natural sciences Environmental impact of pharmaceuticals and personal care products chemistry.chemical_compound Environmental Chemistry Ethylparaben 0105 earth and related environmental sciences Butylparaben Methylparaben business.industry Household Products General Medicine Pollution 020801 environmental engineering Triclosan Pharmaceutical Preparations chemistry Environmental chemistry Sewage treatment business Brazil Water Pollutants Chemical Propylparaben Environmental Monitoring |
| Zdroj: | Environmental Science and Pollution Research. 25:25515-25525 |
| ISSN: | 1614-7499 0944-1344 |
| Popis: | Wastewater treatment plants (WWTPs) are considered to be a source of environmental contamination by micropollutants, especially from pharmaceuticals and personal care products (PCPs). The pathway of those compounds during sewage treatment has been investigated, but data from real-scale WWTPs is still missing (for example, the values of the solid-liquid coefficient (Kd) during treatment). This paper uses the Kd values for some pharmaceuticals and PCPs (fenofibrate, gemfibrozil, propranolol, metoprolol, salicylic acid, acetylsalicylic acid, ibuprofen, diclofenac, naproxen, fenoprofen, caffeine, triclosan, methylparaben, ethylparaben, propylparaben, butylparaben, and benzylparaben) to describe the micropollutants’ behavior in the treatment process. In order to attain this data, an aerobic wastewater treatment plant located in Brazil was studied. Six samplings were carried out and a mass balance was performed, associating the concentrations of the micropollutants in the liquid phase with the solid phase (sludge and suspended solids). Of all the compounds analyzed, caffeine was the most biodegradable pollutant, as almost 98% of its mass was biodegraded. In contrast, triclosan had the highest load in sludge (median of 163.0 mg day−1) and adsorbed in SS (median of 0.593 mg day−1) at the output. Summing up, each micropollutant had a specific way to be removed during wastewater treatment. |
| Databáze: | OpenAIRE |
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