Wastewater Treatment Facility, City of Waterville, Minnesota
During the planning stages, a comprehensive approach was taken to minimize impacts of construction on
The amount of water saved is equivalent to the daily use of 5,000 residents.
After a water plant rehabilitation and ultrafilter (UF) membrane addition, the City of Mankato and Bolton & Menk identified a significant source of water being lost in the drinking water treatment process. UF membranes require frequent “backwashing”. The backwashing process, which uses treated drinking water from the distribution system, was consuming 450,000 gallons of useful water per day that could be re-treated and returned back to the drinking water supply. Instead, water was discharged directly to the sanitary sewer system. In realizing disadvantages, the city worked closely with the Minnesota Department of Health to develop a “reclamation” system to return water back to the treatment process. The amount of water saved is equivalent to the daily use of 5,000 residents.
During the planning stages, a comprehensive approach was taken to minimize impacts of construction on
Alternative process design concepts were evaluated for achieving various levels of nitrogen and phosphorus removal,
The new lift station was constructed south of the existing station and installed while the
By allocating the dollars on the front end at the water treatment plant, the city