Abstract
Three Sicilian wastewater treatment plants were monitored to assess the occurrence and the behaviour of radionuclides. Two sampling campaigns (screening and long-term) were carried out during which liquid and solid samples have been analysed. It was found that 131| mostly occurred in the samples analysed during the screening campaign (43% of the analysed samples contained 131|). High 131| specific activity was found in the mixed liquor, recycled sludge and dehydrated sludge samples. This finding was mainly due to the tendency of 131| to be associated with solid particles. During the long-term sampling campaign an influence of the sludge retention time (SRT) on the 131| behaviour was found. Increasing the SRT and consequently decreasing the fraction of active organic biomass inside the system, the specific activity of 131| decreases.
Lingua originale | English |
---|---|
pagine (da-a) | 252-258 |
Numero di pagine | 7 |
Rivista | Water Science and Technology |
Volume | 71 |
Stato di pubblicazione | Published - 2015 |
All Science Journal Classification (ASJC) codes
- ???subjectarea.asjc.2300.2305???
- ???subjectarea.asjc.2300.2312???