Figure 6From: Characterization of the enhancement of zero valent iron on microbial azo reductionProposed model for Fe0-assisted azo decolorization by S. decolorationis S12. (a) Four sections (I, II, III, and IV) of Fe0-assisted azo biodecolorization. (b) Magnification of section IV in (a). Note: B = bacterium; Am = amaranth; RPs = reductive products of amaranth; AzoR = azoreductase; H2ase = hydrogenase; Ldhase = lactate dehydrogenase; Cyt = cytochrome protein.Back to article page