Skip to main content

CHOOSING AN ODOR CONTROL TECHNOLOGY – EFFECTIVENESS AND COST CONSIDERATIONS

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

When decisions are made on an odor control technology, there are always two determinants that go into the final decision: odor removal effectiveness and cost. The former is one way manufacturers generate interest in their products. However, it still comes down to cost as to whether a specific technology or product is ultimately approved or rejected. Equal emphasis should be placed on both. While cost is very important, minimum performance criteria should be established. If a system costs less but offers a lower performance as well, it may or may not be cost efficient to save money on the front end. Cost evaluations are performed here to show a method of comparing technologies. Then an example scenario in which the criterion was to remove odorous gases below odor thresholds is presented to show a successful application of technology.

Various odor control systems are cost effective at different air flows and different concentration levels. This paper presents advantages and disadvantages of five odor control technologies (wet scrubbers, biofilters, engineered media, granular activated carbon (GAC), and catalytic/regenerative carbon). Wet scrubbers have been shown to be an effective choice in high air velocity and flow applications. Dry-scrubbing technologies (engineered media, GAC, and catalytic/regenerative carbon) can be very effective at lower air velocities and have the ability to remove contaminant gases with high efficiencies. Biofilters have been shown to be effective at lower air velocity regions with the ability to have long media life.

Cost comparison can be presented in several different ways. Cash Flow Analysis is proposed for determining which technology is the most cost effective. This type of analysis allows the end user to determine the actual cost of a system as a function of time. A comparison of the different technologies by initial cost, utility/maintenance cost, and accumulated cost, allows the customer to make a sound economic decision based upon his present needs and budgetary constraints. The contaminant most frequently cited in odor control applications is hydrogen sulfide and it is used for the Cash Flow Analysis in this paper. Two cash flow analyses were performed, a biofiltration application as a calculation example and a dry-scrubbing application as a comparison of two technologies. The biofiltration analysis showed a low maintenance cost for the system in terms of media replacement. The dry-scrubbing analysis determined engineered media to be more economical than catalytic/regenerative carbon in terms of initial investment and future cost for anywhere from 15 to 27 years. The catalytic/regenerative carbon showed less maintenance cost in terms of media replacement.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864702785140023

Publication date: 2002-01-01

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
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