As a sewer modeller I have occasionally been asked about odour generation in sewer networks. I have noticed that DO (dissolved oxygen) and BOD (biochemical oxygen demand) are both inputs in the wastewater and trade-waste model groups of Infoworks ICM SE. Given that these are possible inputs in a sewer model, is it possible to model the consumption of DO by BOD within the network to determine where and when the sewage becomes anaerobic and prone to odour generation? This would be particularly useful if you wanted to model the addition of a high BOD low volume trade waste stream into sewer reticulation system and you wanted to know if the trade waste could be diluted sufficiently so as not to become anaerobic while in transit.
