HRSD, Ostara Partner to Recover Nutrients and Make Fertilizer
Environmental Protection – eponline.com
Hampton Roads Sanitation District (HRSD) and Ostara Nutrient Recovery Technologies, Inc. on May 27 officially unveiled the first facility in the Chesapeake Bay Watershed to benefit from a new technology that recovers nutrients, including phosphorus and nitrogen, from wastewater and transforms them into an environmentally friendly, commercial fertilizer.
HRSD incorporates Ostara’s Pearl® Nutrient Recovery Process at its Nansemond Treatment Plant in Suffolk, Va.
The process increases plant capacity and production efficiencies, while creating a premium fertilizer byproduct from waste, according to the company. The commercial fertilizer, Crystal Green®, uses a slow-release formula to ensure that nutrients are absorbed by plants and thereby reduces fertilizer runoff from reaching and polluting the Bay’s fragile ecosystem.
The Nansemond plant tested the technology from October 2006 to March 2007 in a pilot-scale facility, where it recovered more than 85 percent of the phosphorus and 40 percent of the ammonia from the liquid it processed. The demonstration project led to full-scale commercial implementation.
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