无定形氢氧化铝除氟实验研究

Experimental Study on Defluorination of Amorphous Aluminum Hydroxide

本文针对某企业酸性浸出废水中氟的脱除,采用无定形氢氧化铝进行除氟实验研究;设定反应条件:氢氧化铝加入量45 g/L,反应温度70℃,反应时间60分钟,实验结果表明在该条件下除氟率能达到98%,废水中氟含量能由600 mg/L降至12 mg/L。

In this paper,for the removal of fluorine from the acid leaching wastewater of an enterprise,amorphous aluminum hydroxide was used for the experimental study of defluorination.The reaction conditions were set as the amount of aluminum hydroxide was 45 g/L,the reaction temperature was 70℃,and the reaction time was 60 min.The experimental results showed that the defluorination rate could reach 98%under this condition,and the content of fluorine in the wastewater could be reduced from 600 mg/L to 12 mg/L.