Assessment of potential odor problems on McCook Reservoir, Chicago, Illinois.

摘要

The City of Chicago and neighboring communities are served by combined sewer systems, which carry both stormwater and raw sewage. The combined sewer overflows (CSOs) could exceed the capacity of the wastewater treatment plant (WWTP) to process water. To avoid hazardous flooding and retain CSO systems without exceeding the treatment capacity of the plant, the U.S. Army Corps of Engineering has designed a series of retention ponds, including the McCook Reservoir. Because of the proximity of large populations near the reservoir, it is necessary to determine if sediments accumulated in the McCook Reservoir may generate odor problems around its surroundings. The objective of this research is to determine if odor problems may occur after emptying the McCook Reservoir. To achieve these objectives, experiments involving sediment characterization, olfactometry tests (OT), and H2S flux determinations were conducted. Experiments were conducted using sediments with similar characteristics to those found at the McCook Reservoir. (Abstract shortened by UMI.)