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Screening of Polyphosphate Accumulating Organisms and Their Phosphorus Removal Performance

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  • HONG， Miaoxuan
  • LIANG，Qitong
  • HUANG，Yating
  • LIU, Shasha

Abstract

[Objectives] To study the phosphorus removal performance of phosphate accumulating organisms (PAOs). [Methods] Activated sludge from domestic sewage treatment plant was used as the strain source, and phosphate accumulating organisms were screened by plate streaking method and dilution coating plate method. Six kinds of excellent phosphate accumulating organisms were obtained by metachromatic granule staining experiment, total phosphorus experiment and simulated sewage phosphorus removal experiment to assist the observation of bacterial morphology and experiment of phosphorus removal capacity. In addition, the influencing factors of phosphorus removal capacity (nitrogen source, trace metal ions) were analyzed. [Results] In the case of simulated sewage, the phosphorus removal rate of strain b was the highest, reaching 66.25%, while the phosphorus removal rate of strain e and f was about 10% lower than that of the phosphorus uptake experiment. [Conclusions] This study is expected to provide a theoretical reference for the gradual optimization of the screening method of phosphorus removal bacteria in domestic sewage treatment.

Suggested Citation

  • HONG， Miaoxuan & LIANG，Qitong & HUANG，Yating & LIU, Shasha, 2024. "Screening of Polyphosphate Accumulating Organisms and Their Phosphorus Removal Performance," Asian Agricultural Research, USA-China Science and Culture Media Corporation, vol. 16(01), January.
    • Handle: RePEc:ags:asagre:344155
    DOI: 10.22004/ag.econ.344155
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    Agribusiness;

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