酸改性钢渣处理含铬废水研究

Study on Treatment of Chromium-containing Wastewater by Acid Modified Steel Slag

文章用硫酸对钢渣进行改性,通过傅立叶红外光谱(FTIR)和扫描电镜(SEM)对改性钢渣进行表征,并研究了酸改性钢渣用量、反应温度、pH值等因素对吸附效果的影响。实验结果表明:钢渣经过硫酸改性后吸附性能增强,对于20 mg/L的含铬废水,当改性钢渣的投加量为10 g/30 mL时,铬去除率可达79%。

The steel slag was modified by sulfuric acid, the prepared samples was characterized by FTIR and SEM techniques, and the influence of adsorbent dosage, pH, temperature on removal rate of Cr were investigated. The results showed that modified steel slag was more effective. The degradation ratio of 20 mg/L chromium was 79 % in 30 mL chromium simulated wastewater with 10 g/30 mL adsorbent.