Review of the feasibility of recovering phosphate from wastewater for use as a raw material by the phosphate industry

摘要

Phosphate recovered from wastewater may represent an alternative source of ray material for the manufacture of phosphate products. Within wastewater treatment plants phosphate has been found to spontaneously precipitate forming crystalline deposite of a double salt of magnesium ammonium phosphate, known as struvite. Clearly the conditions for its formation can be found naturally within the environment of wastewater treatment works. The implication is that if these conditions can be exploited it may be possible for struvite to be extracted in commercially economic quantities.