SeweX
Sewer network modelling technology for proactive management of odour, corrosion and safety risks across entire networks
Making evidence-based decisions to mitigate odor, corrosion and safety risks
Wastewater networks are the source of a number of odorous and hazardous gases that are generated by natural biological processes. Methane (CH4) and Hydrogen sulphide (H2S) not only have the highest risk profiles but also cause some major issues to most water and wastewater utilities. SeweX uses sewer network, hydraulic network and wastewater quality data to model and predict where methane and hydrogen sulfide generation will occur, helping utilities decide the optimal strategy to prevent odour and hazardous gases from generating.
Quickly identify the root cause
Drive down operating costs
Better understand risks related to sulphide and methane
Reduce the time to perform network analysis from months to hours
Run scenarios to ideate and test improvements
Article
How drought conditions and low flow sustainability improvements lead to increased odor and corrosion risks in sewer networks
Water conservation and prolonged periods of drought can result in a concentrated lower volume higher concentration effluent, driving increased concentrations of methane and hydrogen sulfide. This leads to an environment for increased corrosion and odor issues in the sewer network.
In response to these challenges, researchers at the University of Queensland’s Advanced Water Management Centre (AWMC), supported by many major Australian water utilities, began working on a tool (SeweX) to represent the physical, chemical and biological processes in sewers with the objective of predicting corrosion and odor hot-spots and compare options for reducing impacts.
Case Study
The SeweX model identified up to 50% reduction in chemical dosing requirements while extending the life of the networks for Sydney Water, Australia’s largest water utility.
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