介孔纳米γ-Al₂O₃处理包钢总排回用水的动态试验

来源期刊：钢铁2010年第9期

论文作者：张雪峰 南文海 董晓玲 高晓玲 吕保义

文章页码：91 - 93

关键词：介孔纳米γ-Al₂O₃； 冷却水； 动态试验

Key words：mesoporous nanometer γ-Al₂O₃； cooling water； dynamic experiment

摘    要：通过介孔纳米γ-Al²O³处理包钢总排水中SO₄^2-、Cl^-、Ca²⁺用于高炉循环冷却水动态试验,确定影响介孔纳米γ-Al₂O₃吸附效果的因素,即通水时间和流量。结果表明:当pH=5,通水时间为10 min,流量为15 L/h时,SO₄^2-去除率达到88%;当pH=5,通水时间为10 min,流量为60 L/h时,Cl^-去除率达到75%;当pH=11,通水时间为10 min,流量为60 L/h时,Ca²⁺去除率达到84%。

Abstract: Both water flux and rate were confirmed to be two key influencing factors of meso-structured nanometer γ-Al₂O₃ absorption after the dynamic experiments of mesoporous nanometer γ-Al₂O₃ dealing with the SO₄^2-,Cl^-,Ca²⁺ from reusing water used by blast furnace at Baogang were made.The results show that SO₄^2- removal rate is 88% when pH=5,flux time is 10min and flux rate was 15L/h;Cl^- removal rate is 75%when pH=5,flux time is 10 min and flux rate is 60L/h;Ca²⁺ removal rate is 84% when pH=11,flux time is 10min and flux rate is 60L/h.