Assessing Greenhouse Gases from a Triple Bottom Line Approach
Abstract:The St. Louis Metropolitan Sewer District (MSD) operates seven wastewater treatment facilities ranging in size from 40 mgd average daily flow (ADF), to over 120 mgd ADF. MSD's biosolids disposal options have included land application, composting, landfilling, and landfill disposal of incinerated ash. In 2009, MSD faced the daunting prospect of needing to undertake major structural renovations to the incineration facilities at its two largest treatment plants at a time when pending regulatory revisions to the Clean Air Act (CAA) were going to significantly impact the continued use of existing multiple hearth furnace (MHF) incineration technology. As part of a comprehensive assessment of its entire biosolids system, MSD undertook a triple-bottom line assessment that also incorporated the impact greenhouse gas (GHG) production would have on its future decision-making process, including opportunities to partner with energy utilities as part of its future operations. This paper addresses the overall GHG evaluation process, the assessment of GHG emissions for various alternatives, and the reconciliation of GHG's as part of the triple-bottom line (TBL) evaluation and selection process at the District's largest facility.
Document Type: Research Article
Publication date: January 1, 2012
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 These proceedings are not peer reviewed.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