AWWA ACE68568

This powerpoint presentation provides an outline of the Aurora Water Prairie Waters Project and how it combines natural and high-tech purification to meet rigorous water quality standards. Presentation topics include: background and climate change drivers; water resource recovery strategy; selecting the right purification strategy; and, confirmation of purification approach. A summary of benefits of combining natural pretreatment with high-tech purification includes the following: organic carbon reduction will improve efficiency of treatment plant processes (softening, AOP, GAC) and decrease DBP formation; increasing UVT significantly reduces cost for UV-AOP; natural de-nitrification through RBF and ARR is natural low-cost process without secondary supply of organic carbon; and, reduces potential for eutrophication in water storage reservoirs, reducing potential of formation of T&O compounds and algal toxins. Includes figures.