Phosphate adsorption capacity(PAC)of synthesized zeolites was higher than those of their raw fly ash,and PAC of synthesized zeolite could be enhanced further by Ca2+.

• 合成沸石除磷能力均高于粉煤灰,钙饱和处理又可明显进一步提高粉煤灰合成沸石的除磷效果。