Przemysl Chemiczny, Vol.96, No.8, 1739-1743, 2017
Crystallization of struvite and hydroxyapatite during removal of biogenic compounds on the filter bed
The N-NH4+ and PO43- ions and coli bacteria-contg. preliminary purified sewage was filtered through CaO beds (for up to 192 h) and studied for formation of struvite and hydroxyapatite crystals to det. the removal degree of the contaminations. The N-NH4+ ions were removed in 96.8%, the PO43- ions in 99.8% and coli bacteria in 100%.