Effect of different temperatures on performance and membrane fouling in high concentration PAC-MBR system treating micro-polluted surface water

Bioresour Technol. 2013 Aug:141:19-24. doi: 10.1016/j.biortech.2013.02.025. Epub 2013 Feb 18.

Abstract

A bench-scale immersed microfiltration coupled with 50 g/L PAC was developed to treat micro-polluted surface water (MPSW) under 10 and 20 °C and the effects of temperatures on the performance and the membrane fouling were also investigated. The low temperature (10 °C) delayed the time for the start-up by 9 days and the complete nitrification by 10 days. In the stable operation, two systems both had high NH₃-N removal efficiency (above 90%) and better removal of organic matters (10% DOC, 5% UV₂₅₄ and 4% SUVA) at 10 °C. Polysaccharides (SMP) were the main membrane fouling matters at low temperature (10 °C) and low temperature (10 °C) didn't cause serious chemical irreversible membrane fouling.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Ammonia / analysis
  • Ammonia / chemistry
  • Biofouling*
  • Bioreactors*
  • Filtration / methods
  • Membranes, Artificial
  • Nitrogen / analysis
  • Nitrogen / chemistry
  • Oxidation-Reduction
  • Particle Size
  • Temperature*
  • Water / chemistry
  • Water Pollutants / analysis*
  • Water Pollutants / chemistry
  • Water Purification / methods*
  • Water Quality

Substances

  • Membranes, Artificial
  • Water Pollutants
  • Water
  • Ammonia
  • Nitrogen