Possibility of release of PCDDS and PCDFS from sewage sludge in the presence of SLS
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Dudzińska Marzenna |
| Rok wydania: | 2007 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 69 |
| Strony: | 1348 - 1351 |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The possibility of co-leaching of dioxin and furan congeners from sewage sludge in the presence of sodium lauryl sulphate (SLS) was studied. Sewage sludge from a municipal wastewater treatment plant (with naturally occurring PCDDs and PCDFs) was used in column experiments and eluted by solutions of different SLS concentrations. Experiments showed that elution by concentrations as low as 0.1 mg/dm3 was hardly detectable. SLS solutions at concentrations considerably higher than usually found in natural waters (1mg/dm3 and 1 g/dm3) did, however, result in leaching of PCDD/Fs from sludge. Such concentrations might be expected in wastewaters and/or sludge. Highly chlorinated congeners moved faster in the column experiments than lower chlorinated tetra- and penta- ones, and dioxins faster than furans. Differences between translocation of particular congeners may result from the sorption-desorption mechanism. |
