Removal of phosphorus by a high rate membrane adsorption hybrid system

Bioresour Technol. 2016 Feb:201:365-9. doi: 10.1016/j.biortech.2015.11.045. Epub 2015 Nov 28.

Abstract

Membrane adsorption hybrid system (MAHS) was evaluated for the removal of phosphate from a high rate membrane bioreactor (HR-MBR) effluent. The HR-MBR was operated at permeate flux of 30L/m(2)h. The results indicated that the HR-MBR could eliminate 93.1±1.5% of DOC while removing less than 53% phosphate (PO4-P). Due to low phosphate removal by HR-MBR, a post-treatment of strong base anion exchange resin (Dowex(∗)21K-XLT), and zirconium (IV) hydroxide were used as adsorbent in MAHS for further removal of phosphate from HR-MBR effluent. It was found that the MAHS enabled to eliminate more than 85% of PO4-P from HR-MBR effluent. Hence, HR-MBR followed by MAHS lead to simultaneous removal of organics and phosphate in a reliable manner. The experiments were conducted only for a short period to investigate the efficiency of these resins/adsorbents on the removal of phosphorus and high rate MBR for organic removal.

Keywords: High rate membrane bioreactor; Membrane adsorption hybrid system organic removal; Phosphate removal.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Anion Exchange Resins
  • Biomass
  • Bioreactors
  • Costs and Cost Analysis
  • Membranes, Artificial*
  • Organic Chemicals / isolation & purification
  • Phosphates / isolation & purification
  • Phosphorus / isolation & purification*

Substances

  • Anion Exchange Resins
  • Membranes, Artificial
  • Organic Chemicals
  • Phosphates
  • Phosphorus