Single-stage autotrophic nitrogen-removal process using a composite matrix immobilizing nitrifying and sulfur-denitrifying bacteria

@article{Aoi2005SinglestageAN,
  title={Single-stage autotrophic nitrogen-removal process using a composite matrix immobilizing nitrifying and sulfur-denitrifying bacteria},
  author={Yoshiteru Aoi and Yuko Shiramasa and E. Kakimoto and Satoshi Tsuneda and Akira Hirata and Teruyuki Nagamune},
  journal={Applied Microbiology and Biotechnology},
  year={2005},
  volume={68},
  pages={124-130}
}
We developed a novel single-stage autotrophic nitrogen-removal process comprised of two composite immobilized biomass layers—one of nitrifying bacteria and one of sulfur-denitrifying bacteria and elemental sulfur—in a Fe-Ni fibrous slag matrix. Nitrification and consumption of dissolved oxygen occurred in the outer part and sulfur denitrification in the anoxic inner part of the composite matrix, thus realizing autotrophic nitrogen removal in a single reactor. The complete conversion of ammonia… CONTINUE READING

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