Solid phase capture of strontium by the iron reducing bacteria Shewanella alga strain BrY

The impact of the Fe (III)-reducing bacteria Shewanella alga on the solid phase partitioning of dissolved Sr2+ was investigated in a series of experiments using live cells, dead cells (heat-treated at 80°C) and isolated cell envelope fractions. The synthetic hydrous ferric oxide (HFO) used in the experiments was prepared in the laboratory by titration of FeCl3 with NaOH. The presence of dissolved Fe (II) was observed only in response to the …