Skip to main content

Aerobic Treatment of Landfill Leachate Using a Submerged Membrane Bioreactor - Prospects for On-site Use

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Submerged membrane bioreactor (MBR) technology for aerobic treatment of landfill leachate was studied in laboratory scale to evaluate its potential for on-site use. The performance evaluation of the system was based on the reduction of organic carbon, nitrogen, overall toxicity, and heavy metals to levels suitable for discharge into municipal wastewater. A laboratory scale, 7.5 L working volume was constructed and operated under continuous feeding with real leachate delivered monthly from a municipal landfill and stored at 4°C prior to use. During the laboratory test, three combinations of solid retention time (SRT)-hydraulic retention time (HRT) of 60d-3.5d, 60d-2d and 30d-1d, were examined to evaluate reactor performance under varying loading and biomass conditions. Steady-state was assumed at each operating condition when total and volatile suspended solids in the bioreactor stabilized. COD removal ranged from 51 to 78%, depending on the influent leachate source and loading conditions. The MBR showed excellent BOD5 removal of 97% and higher, even at HRT as low as 1d, as expected, complete suspended solids retention was observed. Also complete nitrification of the incoming ammonia was observed despite highly variable loading. Significant removal of iron, lead, manganese, cadmium and aluminum from the incoming leachate was observed. The main effect of changes in SRT-HRT was on the reactor biomass population and rate of leachate consumption. No significant changes in the removal efficiency of metals, ammonia, COD and BOD5 were observed at different SRT-HRT. Toxicity removal decreased with increasing HRT. 100% of the toxicity was removed from the leachate at the HRT of 3.5d, while 75% was removed when the HRT was reduced to 2d. The produced effluent met current water quality guidelines for discharge into natural streams in Manitoba.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2005-01-01

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
X
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