Skip to main content

Effect of Membranes on Refractory Dissolved Organic Nitrogen

Buy Article:

$30.00 plus tax (Refund Policy)


A 500-day comparative study with a novel membrane bioreactor (NMBR), anaerobic‐anoxic‐aerobic (A2/O) process, and University of Cape Town-adapted MBR (UMBR) investigated the effect of membrane on effluent dissolved organic nitrogen (efDON) using synthetic (SWW) and municipal wastewater (MWW). The runs, comparing an NMBR and A2/O process, indicated 0.3 mg/L lower efDON in the former than the latter. However, NMBR and UMBR achieved similar efDON quality, with an average of 0.8 mg/L, and the DON reduction by membrane averaged 0.4 mg/L, while the A2/O efDON was slightly higher than DON in the aeration tank, by 0.08 mg/L, on average. The efDON during the MWW run increased by as much as 0.8 mg/L compared with the SWW run. The efDON is a component of a protein found in soluble microbial products, and it followed a cyclical temporal pattern during the runs. Membrane fouling propensity increased the efDON. This study presents evidence that membranes are effective in reducing efDON.

Keywords: biological nutrient removal; dissolved organic nitrogen; membrane bioreactor

Document Type: Research Article


Publication date: 2010-03-01

More about this publication?
  • Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.

    Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • WEF Bookstore
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more