微电解法处理含铬钢铁废水的研究_张一婷.pdf

2014 40 1 　　　　　 　 Januar 2014 　　　　　　　　Industrial Safet and Environmental Protection ·25 · ＊ 张一婷　耿世刚　伦海波　杨立静 (　066004) 　　　　。 pH 、、Fe/C、Cr6+。 , , , 40 mL/min , 6 h。 　　　　　 Research on Treatment of Chrome—containing Steel Wastewater by Micro-electrolysis Method ZHANG Yiting　GENG Shigang　LUN Haibo　YANG Lijing (Environmental Management College of China 　Qinhuangdao, Hebei 066004) Abstract　Iron-carbon micro-electrol sis is applied in the treatment of the steel wastewater containing chromium.The ef- fects of initial pH, stirring speed, Fe/C(qualit )and reaction time on the removal of Cr6+ are investigated b single factor experiments.According to the results of the static experiments, the d namic test is carried out in a fixed bed reactor com- posed of iron and carbon and the experimental results show that when the flow rate is less than 40 mL/min, the s stem can continuousl operate for 6 h. Key Words　iron-carbon micro-electrol sis　chrome-containing steel wastewater　hexavalent chromium 0　 [5] 。 , 、 , 、, [1] 6+ 2+ 。 Cr 。Fe , , Cr6+Cr3+。 6+ [2] Cr 。 , 2　 [3] 20 80 。 2.1　 、、 , 。 Cr6+147.35 mg/L;1 mm , , , ; 1～3 mm; , , 。 。 2.2　 1　 , , 500 mL , 、, 6 。, 1 , [4] 。 , , ,