NUTRIENT MANAGEMENT SOLUTIONS
You know the problem. You remove phosphorus to meet your effluent limits and protect local waterways from nutrient pollution, but now you’ve got a new problem: struvite. You could use chemicals, but they’re expensive and increase sludge production.
THERE IS A BETTER WAY:
OSTARA’S PEARL® AND WASSTRIP® PROCESS
Ostara’s technology suite helps communities around the world manage valuable phosphorus resources while meeting increasingly strict phosphorus limits. Our nutrient recovery system helps save on chemical costs, reduce sludge loads, and create a new revenue stream through the sale of high value recovered fertilizer. Plus, it reduces your carbon footprint – that’s not just good operational practice, that’s good stewardship.
THE PHOSPHORUS CYCLE TODAY
THE OSTARA SOLUTION
At the core of Ostara’s solution is the Pearl fluidized bed reactor. In BNR systems, Pearl removes up to 50% of total plant influent phosphorus before it accumulates as struvite in pipes and other assets. By adding magnesium in a controlled pH setting, nutrients crystallize into highly pure fertilizer granules and grow in diameter. Once they reach the size required for standard fertilizer blends, they are harvested, dried and bagged – ready for immediate distribution and sale under the brand name Crystal Green®.
By reducing effluent phosphorus levels, Pearl helps to consistently meet nutrient regulations while improving the performance of the entire treatment plant.
Ostara’s WASSTRIP (Waste Activated Sludge Stripping to Remove Internal Phosphorus) process provides critical benefits to plant operations, turbo-charging nutrient removal and recovery in a controlled anaerobic environment. The process tackles struvite issues, improves dewaterability and reduces biosolids production.
WASSTRIP complements the Pearl process by releasing phosphorus upstream before it reaches the anaerobic digester, sending it directly to the Pearl reactor for optimal recovery. By diverting phosphorus from the sludge stream, WASSTRIP all but eradicates digester struvite and maximizes phosphorus available for recovery within the Pearl reactor.
Ostara offers a revenue generating, closed-loop solution. Capital costs are recouped in 5-10 years, through annual savings in chemicals, sludge disposal, maintenance, and revenue from Crystal Green sales. As the global leader in nutrient recovery, we deliver a complete, nutrient recovery solution package.