In vitro microcosm of co-cultured bacteria for the removal of hexavalent Cr and tannic acid: A mechanistic approach to study the impact of operational parameters

Recent Progress and Prospects in Catalytic Water Treatment

“…A mechanism for the removal of Cr (VI) in the presence of cultured bacteria is described in Figure 48 407 . The contaminant firstly binds to the surface via reversible or irreversible interactions (an extracellular mechanism).…”

“…The other charge carrying species are the phosphates, esters, phenols and metals. Thus, Fe3O4 from the matrix or present in active surface channels can also reduce the Cr(VI) to Cr (III) according to equation ( 88) that further can immobilize the cell surface 407 . (and references inside) 407 .…”

“…Thus, Fe3O4 from the matrix or present in active surface channels can also reduce the Cr(VI) to Cr (III) according to equation ( 88) that further can immobilize the cell surface 407 . (and references inside) 407 . During the Cr(VI) reduction, reactive oxygen species are generated which can cause oxidative damage to the cells.…”

“…396 A mechanism for the removal of Cr (VI) in the presence of cultured bacteria is described in Figure 48. 407 The contaminant first binds to the surface via reversible or irreversible interactions (an extracellular mechanism). This is followed by an active transport to engulf the surface bound moieties (i.e., an intracellular mechanism).…”

Bioremediation of hexavalent chromium by an indigenous bacterium Bacillus cereus S10C1: optimization study using two level full factorial experimental design

“…B9 [43], A. fumigatus and A. flavus [44], Brucella sp. [45], Hypocrea tawa [22], B. subtilis and B. safensis [46]. According to Das et al [47], bacteria isolated from chromite mine soils have resistance to Cr(VI) and also to other heavy metals.…”