It is understood that combined sewer overflow events (CSO events) have a negative impact on the quality of receiving waters - rivers, streams and lakes. Recent evaluations on the implementation of the EU’s UWWTD and WFD point to the need to improve data collection for CSO events in order to fully understand the scope and scale of the issue1. Furthermore, an increased attention to the environmental impact of emerging pollutants such as pharmaceuticals, personal care products (PCPs), pesticides and, more recently, microplastics will mean that WWTP operators – in addition to focusing on the management of the WWTP - will now need to pay closer attention to the entire sewer network and the quality of its receiving waters. As these advanced treatment costs are much more closely connected to the treated volume and load, how overflows are managed can become an important factor. A reduction in the CSO overflow load - or stated another way - a more efficient redirection of highly polluted effluent to the WWTP with only highly diluted effluent being allowed to overflow can considerably increase the treatment efficiency of the WWTP.
A fully autonomous and predictive sewer network optimization software could help WWTP operators achieve the ultimate goal of a much higher quality receiving water.
Benefits During the Network Design Phase
RTC4Water has worked closely with the Administration de la gestion de l’eau (The Luxembourg National Water Agency, or AGE) to study how real-time control software systems (sometimes referred to as dynamic management systems) can help reduce the construction costs of a sewer system. Smaller overflow basins, with pumps and valves dimensioned for dynamic management, can result in reduced costs without incurring a reduction in performance. if your organization is planning an expansion of an existing sewer network, RTC4Water can now create a model of your network which incorporates the benefits of predictive, real-time optimization.
Benefits During Day-to-Day Operations
In 2012 RTC4Water’s founders implemented the first real-time control software system for CSO overflow reduction in Luxembourg. Our team has developed a stable, mature software specifically designed to reduce the volume of CSO events by up to 30%. If your sewer network is “IT connected”, or if you are soon planning to digitally connect your infrastructure, our team can create a small, inexpensive modelling project which will demonstrate the value of using a dynamic management software.