Removal of boron from wastewater by the hydroxyapatite formation reaction using acceleration effect of ammonia

► The removal rate of boron was controlled by the HAp precipitate formation. ► This method could reduce reaction time to 1/10 that of the conventional one. ► The addition of ammonia could accelerate boron removal in this proposed method. ► Sodium alpha-olefin sulfonate was the most effective coagulant in proposed method. ► The proposed method had applicability to the real waste water sample.