Date of Thesis

11-5-2015

Thesis Type

Masters Thesis

Degree Type

Master of Science in Environmental Engineering

First Advisor

Deborah Sills

Abstract

The electricity requirement for aeration in conventional activated sludge treatment of domestic wastewater contributes to high costs and greenhouse gas emissions. Anaerobic treatment, on the other hand, requires no aeration and produces methane that can be converted to electricity and heat. However, the effluent from anaerobic treatment contains dissolved methane¿a potent greenhouse gas¿that would ultimately be released to the atmosphere. Therefore, there is a need to assess the life cycle environmental and economic impacts of anaerobic and aerobic treatment technologies to understand the long-term sustainability of these wastewater treatment options.

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