METHODS AND APPARATUS FOR STRUVITE RECOVERY USING UPSTREAM PHOSPHATE INJECTION
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United States of America Patent
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Issued Date -
Oct 18, 2012
app pub date -
Feb 15, 2012
filing date -
Feb 15, 2011
priority date (Note) -
Abandoned
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Abstract
Formation of scale in a wastewater treatment system upstream of a struvite precipitation reactor is inhibited by injection of one or more of CO2 and H3PO4. The injection may be performed at multiple locations. Injection may be controlled based on one or more of pH, fluid flow and fluid pressure. Scale may be inhibited while maintaining production of precipitated struvite.
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