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ASA's Commitment to Embedding Sustainability into a Large Upgrade Project

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Abstract:

Sustainability principles are increasingly shifting industries away from “business-as-usual” for construction and operation of facilities. While some wastewater projects have utilized renewable energy sources, LEED structures, etc., few have developed a sustainable programmatic approach to all stages of an infrastructure upgrade from concept to operations.

The Alexandria Sanitation Authority is implementing a nitrogen removal upgrade program to comply with more stringent effluent limitations. The program includes supplemental carbon modifications, centrate pre-treatment facilities and a state-of-the-art nutrient management facility to balance biological loads to the treatment process. Sustainability objectives and strategies were developed to serve as the platform to embed sustainable concepts and practices into the project including alternative selection, detailed design, value engineering, construction, and, ultimately, operations. Key performance indicators have been established to assess the success of each phase of the project. This paper will describe the sustainability plan development and a progress update in meeting the sustainability objectives.

Keywords: GHG emissions; Sustainability; centrate pre-treatment; decision model; supplemental carbon; triple bottom line; value engineering

Document Type: Research Article

DOI: https://doi.org/10.2175/193864710798158661

Publication date: 2010-01-01

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