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Full Scale Phosphate Recovery: Process Control Affecting Pellet Growth and Struvite Purity

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Struvite formation as phosphate recovery has been demonstrated to be a proven full scale technology. An essential aspect for successful implementation is the production of a pure high grade granular struvite. Granulation is essential to obtain a product with free flow properties resulting in efficient handling and processing using existing equipment. Pure mineral struvite, not contaminated with organic residues, can be obtained by strict process control. The results of three full scale units are discussed and most important issues related to struvite quality and pellet growth are elaborated in detail.

Keywords: pellet growth; phosphate recovery; product purity; struvite

Document Type: Research Article


Publication date: January 1, 2011

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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