Xylem to deliver improved wastewater filtration system to Idaho facility

Xylem, a global water technology company, has secured a contract worth $1.9 million (€1.69m) from an Idaho wastewater facility to add an advanced wastewater filtration system.

The inclusion of tertiary filtration technology will enhance the treatment of wastewater effluent being discharged into the Boise River at the facility located in the City of Caldwell by removing suspended solids and ensuring that it can meet stricter regulations.

Brent Orton, public works director of the City of Caldwell, said: “We are working to ensure that the local community and downstream users can enjoy cleaner and better quality waters, as efficiently as possible.”

“The Boise River is protected for cold water aquatic life including salmon spawning and it is a big attraction for recreation. Xylem’s filtration system will help to remove fine particulate matter and improve the quality of water that is discharged back into the river, which is one of our community’s and state’s most valued natural resources,” Orton continued.

The Xylem-designed solution includes Leopold Type S underdrains with I.M.S 1000 media retainers, backwash water troughs, and engineered filter media including sand and anthracite.

The system will help remove total suspended solids (TSS) and particulate associated phosphorus from the wastewater.

The project commenced with a 12-week pilot, during which the Xylem team is working closely with the City and Bowen Collins to test four different media configurations and finalise the design of the filtration system.

Construction will begin in Q4 2016 with the upgraded system due to be operational in Q4 2017.

The system will be built to handle an average daily flow of 8.5 million gallons per day (MGD) and peak daily flow of 16 MGD.