Seed selections for crystallization of calcium phosphate forphosphorus recovery
SONG Yong-hui , Dietfried DONNERT , Ute BERG , Peter G. WEIDLER , Rolf NUEESCH
DOI:
Received June 03, 2006,Revised August 14, 2006, Accepted , Available online
Volume 19,2007,Pages 591-595
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Seed induces and promotes the crystallization of calcium phosphate, and acts as carrier of the recovered phosphorus (P). In order
to select suitable seed for P recovery from wastewater, three seeds including Apatite (AP), Juraperle (JP) and phosphate-modified
Juraperle (M-JP) were tested and compared. Batch and fixed-bed column experiments of seeded crystallization of calcium phosphate
were undertaken by using synthetic wastewater with 10 mgP/L. It showed that AP had bad enduring property in the crystallization
process, while JP had better performance for multiple uses, and M-JP was a hopeful seed for P recovery by crystallization of calcium
phosphate.
