Lessons Learned from Trouble-Shooting Anaerobic Selectors during Winter Operating Conditions
Authors: Melcer, Henryk; Klein, Adam; Ciolli, Mike; Stebbins, Mike; Simonson, Steve; Ott, Garry; Wightman, Daria
Source: Proceedings of the Water Environment Federation, WEFTEC 2010: Session 21 through Session 30 , pp. 1122-1132(11)
Publisher: Water Environment Federation
Abstract:The historical mixed liquor settling performance of the City of Portland, Oregon's Columbia Boulevard Wastewater Treatment Plant (CBWTP) has been erratic at times with sludge volume index (SVI) values periodically greater than 400 mL/g. Tests were conducted at full-scale during winter operating conditions to test the feasibility of improving biological selector performance to lower SVI below historical records and postpone the need for additional secondary clarifiers. One of eight parallel activated sludge treatment trains (the pilot) was isolated from the remaining seven trains (the control) to measure the effect on SVI of operating the pilot in a different manner from the control and to identify design features that would ensure operation at a low SVI.
Document Type: Research article
Publication date: 2010-01-01
- 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 These proceedings are not peer reviewed.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