碱改性粉煤灰处理含铬废水

发布时间：2019-07-11 20:24

【摘要】：采用碱改性方法改性粉煤灰,通过单因素试验处理含铬废水,并对操作条件进行选择和优化,单因素试验表明当投灰量60 g/L,pH值14,吸附时间60 min,吸附温度为20℃,Cr~(6+)初始浓度为40μg/m L的条件下,Cr~(6+)去除率可达92.72%。吸附机理试验表明碱改性粉煤灰吸附含铬废水的过程符合Freundlich吸附等温方程。
[Abstract]:Fly ash was modified by alkali modification method, and the operating conditions were selected and optimized by single factor test. The single factor test showed that the removal rate of Cr~ (6) could reach 92.72% when the ash dosage was 60 g / L, the pH value was 14, the adsorption time was 60 min, adsorption temperature was 20 鈩，

本文编号：2513458