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    Case Studies

    Water Reclamation Facility Upgrades System for Struvite Recovery


    Problem: The Little Patuxent Water Reclamation Facility, a 29 mgd advanced plant in Savage, Maryland, sought to update  biosolids processing by replacing lime stabilization with anaerobic digesters, centrate deammonification and associated solids screening, thickening, odor control and digester gas handling improvements.

    Solution: CNP - Technology Water and Biosolids supplied the MagPrex™ process. It improves biosolids processing by sequestering phosphorus and preventing the formation of struvite. Improvements in dewatering and other processes significantly reduce operating costs. The process either leaves struvite in the biosolids for land application or separates it for use as a slow-release fertilizer.

    Result: The system was scheduled to go online in the third quarter of 2018.

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