Air pocket removal from downward sloping pipes

Air-water flow is an undesired condition in water pipelines and hydropower tunnels. Water pipelines and wastewater pressure mains in particular are subject to air pocket accumulation in downward sloping reaches, such as inverted siphons or terrain slopes. Air pockets cause energy losses and an associated capacity reduction. Despite its practical...

Water quality based RTC using UV/VIS sensors (extended abstract)

Kallisto is a large scale research project at water board De Dommel in The Netherlands, in cooperation with several partners (Weijers et al, 2011). It consists of quantitative and qualitative continuous on line measurements and extended modelling of the WWTP (Waste Water Treatment Plant) Eindhoven, the contributing sewer systems and the river...

Assessment of detection limits of fiber-optic distributed temperature sensing for detection of illicit connections

Distributed Temperature Sensing (DTS) with fiber-optic cables is a powerful tool to detect illicit connections in storm sewer systems. High frequency temperature measurements along the in-sewer cable create a detailed representation of temperature anomalies due to illicit discharges. The detection limits of the monitoring equipment itself are...

Integrated modelling for cost effective optimization of the urban wastewater system in the Eindhoven area (extended abstract)

Analysis of fat, oil, and grease deposits in sagging sanitary sewers (extended abstract)

Searching for storm water inflows in foul sewers using fibre-optic distributed temperature sensing

A major drawback of separate sewer systems is the occurrence of illicit connections: unintended sewer cross-connections that connect foul water outlets from residential or industrial premises to the storm water system and/or storm water outlets to the foul sewer system. The amount of unwanted storm water in foul sewer systems can be significant...