Skip to main content

WERF Odor Study Phase III: Impacts of the MicroSludge Process on Odor Causing Compounds

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The MicroSludge™ processes is a patented chemical and pressure treatment that liquefies waste activated sludge (WAS) in order to improve the rate and extent of its degradation by anaerobic digestion. The MicroSludge™ processes was operated at full-scale at the Los Angeles County Sanitation District's Joint Water pollution Control Plant (JWPCP) from October 2005 until August 2006 to evaluate the performance of this technology for enhancing anaerobic digestion. As part of an ongoing WERF research project to evaluate technologies that may enhance odor reduction from anaerobically digested sludge, samples from the anaerobic digester receiving MicroSludge treated WAS were compared to samples from a control digester to determine the effect of the MicroSludge process on odor generation from dewatered sludge cakes. It was found that the MicroSludge process reduced total volatile organic sulfur compounds (TVOSC) by about 50% for most sludges tested, even though the fraction of WAS was only 25% of the digester feed. The mechanism for the reduction is not clear since additional volatile solids reduction was in the range of 3 to 6%.

Document Type: Research Article


Publication date: January 1, 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 These proceedings are not peer reviewed.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

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
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