Focused-Pulsed Treatment of Waste Activated Sludge: Application to Waste Biosolids Reduction and Increased Methane Production

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

This work investigated the application of Focused Pulsed pretreatment on the subsequent anaerobic digestion of a mixture of primary and waste activated sludge. We present results from laboratory, pilot, and full-scale applications of the technology. In all cases, Focused Pulsed treatment resulted in significant solubilization of COD and other components from the sludge; treatment was effective on a continuous basis at pilot and full scale. Focused Pulsed treatment achieved two major benefits: 1) Increased utilization of the treated material in downstream processes, resulting in a significant reduction in waste biosolids requiring disposal; and 2) Improved conversion of treated material to methane, increasing the potential net energy capture from the biosolids. On-going work is focused on quantifying these operating and economic benefits, as well as verifying an additional benefit from the significant reduction of fecal coliform counts following treatment.

Keywords: ANAEROBIC DIGESTION; BIOSOLIDS PRETREATMENT; CELL LYSIS; METHANOGENESIS; PULSED ELECTRIC FIELD (PEF)

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864707787452930

Publication date: October 13, 2007

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 These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect 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