Skip to main content

Anaerobic Transformations of Wastewater Organic Matter in Sewer Systems

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Anaerobic transformations of wastewater organic matter in the bulk water phase of sewer networks were investigated in laboratory scale experiments. The wastewater was collected from 3 locations, providing wastewater samples with different characteristics, ranging from fresh to mature. Hydrolysis, fermentation and sulfate reduction were identified as the main processes. Significant quantities of readily biodegradable substrate were produced by hydrolysis and fermentation, although fermentation was found to be generally limited by hydrolysis. The readily biodegradable substrate generated was almost entirely composed of the VFAs acetic acid and propionic acid. A production of sulfide was observed in all experiments, demonstrating that part of the readily biodegradable substrate was consumed by sulfate respiration. The sulfide production was most pronounced in mature wastewater that had previously undergone anaerobic transport. These processes that occur in the bulk water phase can significantly affect the quality of the wastewater which may impact the subsequent wastewater treatment.

Keywords: anaerobic; fermentation; hydrolysis; oxygen uptake rate; volatile fatty acids; wastewater

Document Type: Research Article


Publication date: 2009-01-01

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 These proceedings are not peer reviewed.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