Skip to main content

ADVANCED SCRUBBER TECHNOLOGY GIVES NEW LIFE TO AN OLD FURNACE

Buy Article:

$17.50 plus tax (Refund Policy)

Abstract:

Facing aging equipment, odor complaints and the inability to meet emission standards the East Norriton, Plymouth, Whitpain Joint Sewer Authority (ENPWJSA) entered into a Consent Order and Agreement (CO&A) with the Pennsylvania Department of Environmental Protection (DEP) to modify solids handling practices at their 8.0 MGD Wastewater Treatment Facility.

Preservation of reasonable costs and the control of odors associated with biosolids handling prompted a study of solids handling alternatives. The study evaluated continued use of an Existing Multiple Hearth Furnace (MHF) with three add-on emission control systems. A comparison to other solids handling options including alkaline stabilization processes was also made. A Present Worth Analysis demonstrated the economic viability of improvements to, and continued use of, the MHF. The select alternative included replacement of the existing high-energy scrubber with a more efficient post cooler multi-venturi wet scrubber followed by a recuperative heat exchanger and afterburner.

Conversion to this patented post scrubbing afterburner process configuration was completed in less than one year. The modification required only one extended (25 consecutive day) shutdown of the furnace and only 15 days of off-site biosolids disposal costs.

EPA (1993) estimated there were approximately 343 active biosolids incinerators in the U.S. Of these, 277 were MHF, while the remaining were Fluid Bed Combustors (FBC). The present worth analysis for ENPWJSA clearly identified the economic advantages to add-on modifications to the existing MHF compared to replacement costs. The process configuration utilized in ENPWJSA also demonstrated the capability of the MHF to meet conflicting priorities of NOx and CO at reasonable fuel demands.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701784993579

Publication date: January 1, 2001

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 These proceedings are not peer reviewed.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/2001/00002001/00000001/art00076
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