Skip to main content

The Impact of Ultrasonic Energy on Mesophilic Anaerobic Digestion

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The objective of this study was to determine the feasibility of using ultrasonic energy to enhance mesophilic anaerobic digestion. The primary focus was to determine if using ultrasonics in a pretreatment mode or in an internal recycle line produced any significant changes in performance. Using a relatively low energy system, the data showed that the addition of ultrasonic energy in either a recycle line or as a pretreatment technology improved anaerobic digestion efficiency. There was a mean 17% increase in daily biogas production, a mean increase in additional total solids destruction of 6.2% as well as a mean increase of 5.9% of volatile solids destruction, depending on ultrasonic dose and location. The dewaterability of the sludge was poorer, as measured by an increase in the optimum polymer dose. The addition of ultrasonics to the digestions systems generated a more stable biosolids product with a 10-24% reduction in organo-sulfur odor potential. The system also demonstrated that performance was dependent upon the ultrasonic dose applied.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864705783968295

Publication date: January 1, 2005

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 These proceedings are not peer reviewed.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
wef/wefproc/2005/00002005/00000002/art00063
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

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