BALLASTED HIGH RATE CLARIFICATION PROCESS REMOVES CITY OF GREENFIELD, INDIANA AS A CSO COMMUNITY
Abstract:The City of Greenfield, Indiana was removed from the CSO community list as a result of the construction of the new 12 MGD Ballasted High Rate Clarification (BHRC) process in 2004 and several sewer rehabilitation and lateral replacement projects. The cost associated with the new BHRC processwas approximately 2.0 million and was part of an 8.4 million plant expansion project. This is the first facility of its kind in Indiana. During wet weather events flow is diverted to the BHRC process following screening and grit removal while the remainder is sent through primary and secondary treatment. The flow streams are recombined prior to UV disinfection and consistently meet the City's NPDES limits of 10 mg/l CBOD and 12 mg/l TSS. The process is designed to reach full treatment efficiency within 15 minutes from start-up. Average removal rates are 78% for CBOD, 88% for TSS and 25% for Ammonia-N.
Operating costs are approximately 190.00 per milliongallons treated or 39.00 per hour of operation.
Document Type: Research Article
Publication date: 2006-01-01
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 These proceedings are not peer reviewed.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