Skip to main content

A Decade of Designing Biological Nutrient Removal (BNR) Processes for Landfill Leachate Treatment: Challenges & Lessons Learned

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


This paper presents some of the key design considerations and lessons learned from designing and operating landfill Leachate Treatment Facilities (LTFs) based on a decade of experience with numerous landfill leachates. Landfill leachate treatment is a major challenge due to the high and variable contaminant concentrations such as high COD, extremely high ammonia levels, and significant Total Dissolved Solids (TDS) concentrations. Biological Nutrient Removal (BNR) technology, more specifically, the Anoxic/Oxic processes have been implemented in order to achieve nitrification and denitrification and reduce the oxygen demand. Due to high variability of organics-to-nitrogen ratio, the LTFs were designed for long HRTs of 2 to 3 days. Anoxic/oxic processes without pre-treatment for removal of inorganics have been successfully adopted. High TDS concentrations of 11,000 mg/L did impair nitrification. Proper characterizations of leachate, backed by treatability or pilot studies are essential to select a reliable LTF that can effectively accommodate variable influent characteristics.

Document Type: Research Article


Publication date: 2012-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • 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