biological phosphorus removal processes for wastewater treatment

biological phosphorus removal processes for wastewater treatment
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  • What is biological phosphorus removal?
  • Biological processes are cost-effective and environmentally sound alternatives to the chemical treatment of nutrient-containing wastewater (5). Biological phosphorus removal (BPR) from wastewaters is based on the enrichment of activated sludge with phosphate accumulating organisms, namely PAOs (6, 7).
  • Why is phosphorus removal important in wastewater treatment plants?
  • Phosphorus as a fundamental element for growth and metabolism of living organisms, yet problematic to water quality, is an irreplaceable component. Application of enhanced biological phosphorus removal (EBPR) technology in wastewater treatment plants offers phosphorus removal and recovery in addition to potential eutrophication prevention.
  • How to remove phosphorus from wastewater?
  • Therefore, phosphorus removal from wastewaters would become increasingly important. To remove phosphorous, it must either be converted into a particulate form and removed as a particulate by sedimentation, filtration, or some other solids removal process or be concentrated into a side-stream using membrane treatment.
  • Are microorganisms important to enhanced biological phosphorus removal?
  • Stokholm-Bjerregaard M, McIlroy SJ, Nierychlo M et al (2017) A critical assessment of the microorganisms proposed to be important to enhanced biological phosphorus removal in full-scale wastewater treatment systems.