The treatment and reuse of waste water is an integral part of any municipal water process. In the same way, implementing the right remote monitoring solution is also an important component of a water management system.
One North American city was looking to remotely monitor sites tasked with processing their water and waste water. With a population of almost a million people spread over 2,000 square kilometers, 90 percent of which is in country-like settings, the city’s storm water and sewage infrastructure is very large. There are 180,000 service connections collecting waste water from households, commercial and industrial customers, while 50,000 catch basins collect storm surface water and release it into 1,500 km of storm sewers. Also, 2,000 km of sanitary sewers, with the help of 70 pumping stations, transport sewage to local treatment plants.
Since the system is expected to handle the volume of water regardless of load, the infrastructure has to be robust. Monitoring all the sites and reacting to events that require direct intervention provides the benefit of being able to evaluate the performance of the system but posed a challenge since many of the service points are dispersed over an expansive geographical area.
To give an example of how the city started tackling the problem of monitoring remote service points outside the densely populated portion of the city, let’s take a look at what was done with one of the biofilters in the system…