Skip to main content

Prevent Upsets Before It's Too Late - What Your Biomass Can Tell You, If You Look

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The Hopewell Regional Wastewater Treatment Facility (HRWTF) treats waste streams originating from multiple large industrial sources which make up 85% of the influent to the plant (with the balance made up of municipal waste). In the past, the HRWTF has experienced random toxic upsets due to unidentified causes. Because of this, the HRWTF began using in June 2006 LuminUltra Technologies Ltd's ATP (Adenosine Triphosphate) monitoring technology with the goal of detecting and preventing impending upsets.

The benefit of ATP monitoring was not fully understood until January 2009 when a significant toxic upset event occurred. This paper will discuss how the ATP testing along with other routinely collected plant data revealed the onset of the 2009 upset, helped identify the source of the problem, assessed the degree of damage done, and facilitated troubleshooting in the aftermath of the upset. Rather than relying on TSS or VSS measurements that contain many components other than living cells, ATP monitoring isolates the living population from dead biomass, inert solids, and other interferences. This 5-minute test shows the active population's response to stimuli (good and bad), and therefore gives operators the ability to immediately detect changes in the process and determine the source and severity of toxic events.

Keywords: ATP; Adenosine Triphosphate; Biomass Stress Index; Cellular ATP; Dissolved ATP; HRWTF; Hopewell; LuminUltra; Total ATP; activated sludge; active; aerobic; anaerobic; biological monitoring; biomass; early warning; process control; upset; wastewater treatment

Document Type: Research Article


Publication date: 2009-01-01

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 These proceedings are not peer reviewed.

    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
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
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