Quantitative determination of vivianite in sewage sludge ...
2021-9-1 · As Fig. 6a (marked as OE) shows, BD-P, which represented phosphate bound to Fe(III), c.f., Table 1, comprised 57%, 47%, 58%, and 57% of TP in DG-S, DW-S, DG-E, and DW-E, respectively, which all exceeded the BD-P values obtained by the modified P extraction protocol with separate vivianite extraction before the BD step. This indicated that some ...