Long-term transport behavior of psychoactive compounds in sewage-affected groundwater
| Autor: | Gudrun Massmann, Enrico Hamann, Raffaella Meffe, Janek Greskowiak, Hang Thuy Thi Nham, Ulrike Hass |
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| Rok vydání: | 2016 |
| Předmět: |
Irrigation
geography Hydrogeology geography.geographical_feature_category business.industry 0208 environmental biotechnology Environmental engineering Sewage farm Sewage Aquifer 02 engineering and technology 010501 environmental sciences Contamination 01 natural sciences 020801 environmental engineering chemistry.chemical_compound chemistry Environmental science Phenylethylmalonamide business Groundwater GE Environmental Sciences 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Grundwasser. 21:321-332 |
| ISSN: | 1432-1165 1430-483X |
| Popis: | The present study provides a model-based characterization of the long-term transport behavior of five psychoactive compounds (meprobamate, pyrithyldione, primidone, phenobarbital and phenylethylmalonamide) introduced into groundwater via sewage irrigation in Berlin, Germany. Compounds are still present in the groundwater despite the sewage farm closure in the year 1980. Due to the limited information on (i) compound concentrations in the source water and (ii) substance properties, a total of 180 cross-sectional model realizations for each compound were carried out, covering a large range of possible parameter combinations. Results were compared with the present-day contamination patterns in the aquifer and the most likely scenarios were identified based on a number of model performance criteria. The simulation results show that (i) compounds are highly persistent under the present field conditions, and (ii) sorption is insignificant. Thus, back-diffusion from low permeability zones appears as the main reason for the compound retardation. |
| Databáze: | OpenAIRE |
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