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Bioremediation of Reclaimed Wastewater Used as Landscape Water by Using the Denitrifying Bacterium Bacillus cereus

Abstract

Organic matter and nitrogen removal from reclaimed wastewater used as landscape water was carried out by in situ bioremediation. A denitrifying bacterium Bacillus cereus DNF409 was introduced for this purpose, and the amount of B. cereus used was optimized. The total nitrogen (TN) content and chemical oxygen demand (COD) of the landscape water decreased from 9.86 to 3.1 mg/L (removal rate, 68.6%) and from 127 to 36 mg/L (removal rate, 71.7%). The transparency of water increased from 0.2 to 0.55 m.

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Acknowledgments

This research was supported by the National Hi-Tech Development Program “863” project (No. 2006AA020201).

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Correspondence to Yunxiang Liang.

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Zhao, S., Hu, N., Chen, Z. et al. Bioremediation of Reclaimed Wastewater Used as Landscape Water by Using the Denitrifying Bacterium Bacillus cereus . Bull Environ Contam Toxicol 83, 337–340 (2009). https://doi.org/10.1007/s00128-009-9684-x

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Keywords

  • Bacillus cereus
  • Bioremediation
  • Landscape water
  • Reclaimed wastewater