CSOnet is a sensor actuator network that monitors and controls the frequency of combined sewer overflow (CSO) events in city sewer systems. CSO events constitute a major health and environmental hazard which numerous U.S. cities have been attempting to address. This paper describes an ongoing project building a metropolitan scale CSOnet in the City of South Bend Indiana.

The study of two-phase fluid flow behavior in hydraulic structures such as pressurized flow tunnels, culverts, sewer pipes, junctions and other similar conduits is of great importance. A two-phase mixture flowing in a pipe can exhibit several interfacial geometries such as bubbles, slugs or films, depending on the fluid and hydrodynamic properties of flow. The main variables, giving rise to a v...

The study of two-phase fluid flow behavior in hydraulic structures such as pressurized flow tunnels, culverts, sewer pipes, junctions and other similar conduits is of great importance. A two-phase mixture flowing in a pipe can exhibit several interfacial geometries such as bubbles, slugs or films, depending on the fluid and hydrodynamic properties of flow. The main variables, giving rise to a v...

The objective of this paper is to describe an autoregressive regression framework with respect to metered sewer flow and simultaneous rainfall data series. The main purpose is to produce more reliable estimates for rain derived inflow and infiltration RDII characteristics in a sanitary sewer basin. The discussion is centered at three specific points: 1 a justification for an autoregressive erro...

As one of major underground pipelines, sewerage is an important infrastructure in any modern city. The most common problem occurring in sewerage is leaking, whose position and failure level is typically identified through closed circuit television (CCTV) inspection in order to facilitate rehabilitation process. This paper proposes a novel method of computer vision, morphological segmentation ba...

OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Impact of dry weather discharges on annual pollution from a separate storm sewer in Toulouse, France. • Dry weather discharges from storm sewers have an impact on annual pollution load. • The more urbanized the outlet is, the more important the pollution i...

INTRODUCTION The aim of this study was to determine the problems encountered during investigations into causes of death in corpses found in wells, sewer systems and pits, and to seek solutions to the problems. In fact, wells, sewer systems and pits have some common characteristics which may cause the problems. They contain water, have a hypoxic/anoxic environment and prevent corpses from being ...

Reliable estimation of sewage flow rates is essential for the proper design of sewers, pumping stations, and treatment plants. The design of the various components of the sewerage system should be based on the most critical flow rates with a focus on extremely low and peak flow rates that would be sustained for a duration related to the acceptable limits of behavior of the components under cons...