Stormwater runoff is often contaminated by human activities. Stormwater discharge into
water bodies significantly contributes to environmental pollution. The choice of suitable …

Air can be entrapped in water and wastewater systems under a variety of conditions, and if
such air is not managed properly, it can impose considerable operational penalties. To …

Current designs of sanitary collection systems normally only consider the transport of
wastewater without attention on the air movement in the sewer airspaces. Under anaerobic …

Stepped weir is a commonly used hydraulic structure in water treatment plants to enhance
the air-water transfer of oxygen or nitrogen and volatile organic components. The flow …

Wastewater hydraulics problems are frequently addressed by investigation on physical
models. Dimensional analysis is a powerful tool that allows discovering essential …

With the increasing frequency of extreme weather events, heavy rainfall and flooding pose
significant pressure on the flood discharge systems of tailings dams. Simple discharge …

Dropshaft cascades are typical elements of sewer systems in steep urban catchment basins.
The design of a dropshaft cascade, which is generally addressed as an optimization …

Industrial diagnostic and monitoring systems still require new methods offering new
possibilities of non-invasive observation and analysis of the two-phase gas–liquid mixture …

Vortex drop structure is used to convey water through underground conduits in urban
sewers and drainage systems. During the plunge, a large volume of air is entrained into the …

Air entrainment phenomena have a strong influence on the hydraulic operation of a
plunging drop shaft. An insufficient air intake from the outside can lead to poor operating …