Although St. Francis, Minnesota, located in Anoka and Isanti counties, has a population of only 7,218, it has big ideas when it comes to the future of its wastewater treatment system. Those big ideas came to fruition starting in 2015 when the city began building a new treatment facility at its existing wastewater treatment plant, which was built in the 1970s. Although upgraded in 2000, the upgrade did not address existing and future regulations regarding ammonia and phosphorus.

In search for the best wastewater treatment process in terms of removal of microbiological contaminants and the abatement of bromate discharge, RWTH Aachen University, along with the other environmental institutions, launched a research project and partnered with Xylem to test the effects of wastewater ozonation on water quality and its ecosystem.

An increasing number of certification bodies, including NWRI and the USEPA’s UVDGM, require the use of original components in UV water disinfection systems to achieve compliance. But certifications and local compliance policies are different in different parts of the world, including the Middle East region.

This plant treats water from the Ruhr River to provide drinking water for several million people.

This system allows Bayernoil to meet the allowed discharge limit set by the Bavarian authorities into the Danube river.