Sewer odors have been a concern to citizens of the Metropolitan Seoul region, which has installed combined sewer systems (CSSs) in 86% of its area. Although a variety of odorants are released from sewers, volatile sulfur compounds (VSCs) have been recognized as major ones. A number of technologies have been proposed to monitor or control odors from sewers. One of the most popular strategies ado...

The management of urban sewer systems requires data about variability and discharge of typical waste water sources in urban catchments. Especially the infiltration of groundwater and the inflow of surface water (I/I) are important for decisions about rehabilitation and operation of sewer networks. In this paper a new methodology is presented which supports the identification and quantification ...

This paper describes the first radar based forecast of flow and/or water level in sewer systems in Denmark. The rainfall is successfully forecasted with a lead time of 1-2 hours, and flow/levels are forecasted an additional 1⁄2-11⁄2 hours using models describing the behaviour of the sewer system. Both radar data and flow/water level model are continuously updated using online rain gauges and on...

Sewer blockages delay sewage discharge or cause it to overflow, which pollutes the environment and is a public health hazard. This necessitates quick accurate identification positioning of sewer blockages. Following blockage, intercepted liquid level at upstream downstream blocking point changes. study established method for identifying by analyzing range rate change point. Through pilot-scale ...

The poster deals with an integrated methodology for the assessment of the impacts of alternative sewer and waste water treatment plant (WWTP) management scenario’s on the quality of the receiving waters. The input time series for the flows and concentrations at the combined sewer overflow (CSO) structures and at the treatment plant intake are obtained through a continuous sewer simulation model...

Extreme climate events are becoming more intense in Melbourne in recent years. This increasing intensity of excessive rainfall has an adverse effect on the sewer network by causing sewage overflow hazards. Extreme rainfall events increase flow into the sewer system, both directly (inflow) and through infiltration into sewer. As a result of this Rainfall Derived Infiltration and Inflow (RDII), S...

TRC undertook a study in 2011 focusing on the township of Crows Nest as its flagship for assessing the existing infrastructure and the development of a future sewer system. The study was designed to identify whether a conventional gravity system would be a more cost-effective option than a pressure sewer system. Consideration of various conditions such as population densities, topographic const...