Centrisys/CNP implements MagPrex installation at Idaho WRRF
The Meridian, Idaho Wastewater Resource Recovery Facility recently partnered with Centrisys/CNP to implement the company`s phosphorous removal system.
Centrisys/ CNP Implements MagPrex Installation at Meridian Wastewater Resource Recovery Facility
The Meridian, Idaho Wastewater Resource Recovery Facility (WWRRF) has recently chosen Centrisys/CNP’s MagPrex™ sequestration process with an option to later expand to struvite harvesting.
Meridian evaluated the possible nutrient management processes that would allow them to meet upcoming lower nutrient effluent limits, concluding that biological phosphorus removal was their best choice. The decision was based on process effectivity, lower lifecycle costs and the chemical reduction goals of their treatment process.
The city has a compliance schedule to meet a limit of 8.5 lbs./d TP, with a projected future max month flow to a concentration of 0.07 mg/L total P. With this newly-announced partnership, Centrisys’s MagPrex product will begin mitigate the plant’s high phosphorus levels
Biological phosphorus removal directs most phosphorus into the solids stream in the form of orthophosphate for further treatment. By concentrating the phosphorus in the solids stream, the city will permanently remove a significant portion of phosphorus from the overall treatment process and prevent recycling within the plant.
“After an evaluation of MagPrex by the city’s engineers, Mountain Water Works and Carollo, the city council decided to award the order to the Centrisys/CNP MagPrex system,” said Gerhard Forstner, president of CNP and nutrient recovery expert. “We look forward to facilitating the installation and helping the city of Meridian achieve its goals.”
Meridian’s WWRRF operates and maintains a centralized wastewater treatment facility and over 400 miles of sewer lines located throughout the city. The primary objective of the city’s wastewater division is the protection of the water supply and the processing of wastewater that flows into the facility to safeguard the health of its citizens.
The product will significantly improve treatment efficiency, including:
- Reduced polymer consumption up to 30 percent
- Reduced disposal costs up to 20 percent
- Reduced phosphate recycle loads up to 90 percent
- Reduced maintenance costs up to 50 percent
- Increased revenue from fertilizer up to 20 percent
- No sodium hydroxide required for pH change
Using the system, operators can prevent crystallization in their biosolids train and reduce phosphate recycling by up to 90 percent. The Meridian WWRRF's start-up data's anticipated timeframe will begin in the summer of 2022.