Skip to main content

Results from a Full Scale UFAT VFA Generation Capacity Study

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

Primary sludge fermentation has long been used to generate volatile fatty acids (VFA) vital to biological phosphorus removal (BIO-P). At the Durham Advanced Wastewater Treatment Plant (AWWTP), the unified fermentation and thickening (UFAT) process was developed and has been in operation for eight years. This process consists of a static fermenter/thickener combination to produce and elutriate VFAs from primary solids before thickening.

There are significant practical issues that can limit the capacity; such as inaccurate flow measurement because of rapid grease buildup, difficult inventory management, and the lack of automation. The achievable maximum VFA generation capacity depends as much on temperate and solids retention time (SRT), as it does from the ability to control the fermenter. In addition, prefermentation upstream of the UFAT system has proven to be a key factor in fermenter VFA yield.

Keywords: Fermentation; Phosphorus Removal; UFAT; VFA Generation

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864709793953755

Publication date: January 1, 2009

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 These proceedings are not peer reviewed.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/2009/00002009/00000012/art00044
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