Filtration of Bacillus subtilis and Bacillus cereus spores in a pyroclastic topsoil, carbonate Apennines, southern Italy.

A comparative study on the filtration of Bacillus subtilis and Bacillus cereus spores in a pyroclastic topsoil was performed in laboratory using surfactant-free solutions and solutions with the surfactant sodium dodecyl sulphate (SDS) (anionic). The results of the column experiments demonstrate that the SDS does not significantly influence the retention of both B. subtilis and B.