Secondary clarifier conditions conducting to secondary phosphorus release in a BNR plant.

@article{Mikola2009SecondaryCC,
  title={Secondary clarifier conditions conducting to secondary phosphorus release in a BNR plant.},
  author={Anna Mikola and Jyri Rautiainen and Riku Vahala},
  journal={Water science and technology : a journal of the International Association on Water Pollution Research},
  year={2009},
  volume={60 9},
  pages={2413-8}
}
A full-scale study at Pihlajaniemi BNR plant in Savonlinna Finland investigated in detail the conditions in which phosphorus release in the secondary clarifier can occur. For this purpose nutrient and ORP profiles were taken in different process conditions from the sludge blanket in the secondary clarifiers. The results show that in anaerobic conditions secondary phosphorus release can take place in the secondary clarifiers without any addition of exogenous COD. Long sludge retention time in… CONTINUE READING

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