Skip to main content

IMPROVEMENT OF TRIANGLE ODOR BAG METHOD AND TRIANGLE ODOR FLASK METHOD AS SENSORY MEASUREMENT METHODS FOR ODOR EMITTED FROM WASTEWATER

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

A new sensory measurement method for odor emitted from wastewater based on the triangle odor bag method (TOBM) was proposed. In this method, odor index (logarithm of odor concentration, multiplied by ten) of the headspace gas in an equilibrium state with the sample liquid is measured by the TOBM. Three experiments were conducted to compare the TOBM with the triangle odor flask method (TOFM), which is the most popular sensory measurement method for odor emitted from wastewater in Japan. In the first experiment, odor index of the sample liquid was measured by these two methods. There was a statistically significant difference between these two methods, and odor index measured by the TOBM was higher than those measured by the TOFM. The second experiment was designed to examine the effectiveness of the improved TOFM in which odor is to be sniffed through a Teflon cap attached to the mouth of a flask. The effectiveness of the improved TOFM was ascertained from interviews on the measurement procedure with the subjects. In the third experiment, odor index of real wastewater was measured by the TOBM and the improved TOFM. A statistically significant difference between these two methods was found, and odor index measured by the TOBM was higher than those measured by the improved TOFM. As a result, the applicability of the TOBM to the sensory measurement of odor emitted from wastewater was made clear.
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: 01 January 2000

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 These proceedings are not peer reviewed.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
X
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