Skip to main content


Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The feasibility of a compartmentalized anaerobic migrating blanket reactor (AMBR) was studied for the treatment of low-strength wastewater under low-temperature conditions. During an operating period of 186 days, we fed a 20-liter AMBR non-fat dry milk as a synthetic wastewater at low temperatures (15°C and 20°C). The concentration of the influent was constant at COD and BOD5 concentrations of 600 and 285 mg/liter, respectively. The soluble chemical oxygen demand (SCOD) removal efficiency was 73% at the end of the operating period at a 4-h hydraulic retention time (HRT), while total COD (TCOD) and methane-based COD (MCOD) removal efficiencies were 59% and 36%, respectively. At a 4-h HRT, staged conditions promoted a complete removal of propionic acid in the final compartments of the reactor. The specific methanogenic activity of the granules increased slowly until the end of the operating time, improving the removal rate. Biomass was retained effectively, as the sludge retention time (SRT) was always exceeding 50 days during step decreases of the reactor HRT from 12 to 4h. A long SRT promoted stability during changes in flow in which the SCOD removal remained above 70%. During a 1-day peak flow study, the HRT was reduced from 4 to 1 h during which solids levels in the effluent increased and the SRT decreased to 12.6 days. However, 1 day after the peak flow the performance was almost similar as before the peak flow. AMBR treatment of low-strength wastewater at low temperatures was found to be attractive, because of staged conditions and the ability of the system to retain biomass sufficiently during changes in flow.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 2000-01-01

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 These proceedings are not peer reviewed.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