Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

Influence of carbon and alternating oxic-anoxic model on sludge bulking and pollutant removal effect

Authors
E.L. Jiao, C.D Gao, S.X. Fan, R.F. Li, Y. Tian
Corresponding author
E.L. Jiao
DOI
https://doi.org/10.2991/icadme-15.2015.183How to use a DOI?
Keywords
SBR; Alternating oxic-anoxic; Sludge bulking; Sodium acetate; Pollutant removal
Abstract
The influence of carbon and alternating oxic-anoxic model on sludge bulking and chemical oxygen demand (COD), ammonia nitrogen and total nitrogen removal effect are investigated under alternating oxic-anoxic model in sequencing batch reactor (SBR). The experiment performed for 23 days and 30 days instage 1 and 2 separately. The results showed that the average removal rate of ammonia nitrogen total nitrogen and COD were 97.8% 68.1% and 55.1% in stage 1. The average removal rate of total nitrogen improved to 90.4% in stage 2 mainly due to that the addition of carbon source and more electron accepter, more nitrate and nitrite were reduced to nitrogen, The removal of COD reached 82.5% due to the addition of sodium acetate and the increasement of organic loading, at last the effluent met the national level A standard. The MLSS maintained steadily around 3000mg/L in stage 1 and 2, the SVI improved slowly and reached 180 ml/g at the end during stage 2, the inflow water got high concentration of small molecular compounds by addition of sodium acetate which was favor of increasement of filamentous bacterium, the SVI was affected by the amount of fi-lamentous bacterium.
Copyright
© The authors. This article is distributed under the terms of the Creative Commons Attribution License 4.0, which permits non-commercial use, distribution and reproduction in any medium, provided the original work is properly cited. See for details: https://creativecommons.org/licenses/by-nc/4.0/
Open Access | Under Creative Commons license CC BY-NC 4.0

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@inproceedings{Jiao2015,
  title={Influence of carbon and alternating oxic-anoxic model on sludge bulking and pollutant removal effect},
  author={Jiao, E.L. and Gao, C.D and Fan, S.X. and Li, R.F. and Tian, Y.},
  year={2015},
  booktitle={5th International Conference on Advanced Design and Manufacturing Engineering},
  issn={2352-5401},
  isbn={978-94-6252-113-1},
  url={http://dx.doi.org/10.2991/icadme-15.2015.183},
  doi={10.2991/icadme-15.2015.183},
  publisher={Atlantis Press}
}
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