Inhibition of sulfate reduction by iron, cadmium and sulfide in granular sludge.

@article{GonzalezSilva2009InhibitionOS,
  title={Inhibition of sulfate reduction by iron, cadmium and sulfide in granular sludge.},
  author={Blanca M Gonzalez-Silva and Roberto Briones-Gallardo and El{\'i}as Razo-Flores and Lourdes B. Celis},
  journal={Journal of hazardous materials},
  year={2009},
  volume={172 1},
  pages={400-7}
}
This study investigated the inhibition effect of iron, cadmium and sulfide on the substrate utilization rate of sulfate reducing granular sludge. A series of batch experiments in a UASB reactor were conducted with different concentrations of iron (Fe2+, 4.0-8.5 mM), cadmium (Cd2+, 0.53-3.0 mM) and sulfide (4.2-10.6 mM), the reactor was fed with ethanol at 1g chemical oxygen demand (COD)/L and sulfate to yield a COD/SO4(2-) (g/g) ratio of 0.5. The addition of iron, up to a concentration of 8.1mM… CONTINUE READING