The retention of Cr(VI) in subsurface environment is highly dependent on humic acid (HA), however, the undissolved form is poorly investigated, the amount of which can be of two magnitude higher compared with the dissolved ...

Different soil humus fractions are structurally distinct from each other molecularly, however, the relationship between their microscopic molecular structures and the macroscopic reduction of Cr(VI) is still unknown, ...

Soil organic which act as the main electron donors for Cr(VI) reduction; however, Cr(VI) reduction mechanism y different SOM fractions is still unclear, such as undissolved humic acid (HA) and humin (HM). In this study, ...