钢渣对酸性枣红废水的吸附动力学研究  

Study on adsorption kinetics of acid sorrel wastewater with steel slag

作　　者：能子礼超 徐园园[3] 海来伍加[1] 李小芳[1] 马金华[1,2] 刘盛余 Nengzi Lichao;Xu Yuanyuan;Hailai Wujia;Li Xiaofang;Ma Jinhua;Liu Shengyu(Academy of Environmental and Economics Sciences,Xichang University,Xichang 615000,China;College of Resources and Environment,Xichang University,Xichang 615000,China;College of Resources and Environment,Chengdu University of Information Technology,Chengdu 610225,China)

机构地区：[1]西昌学院环境经济科学研究中心,四川西昌615000 [2]西昌学院资源与环境学院,四川西昌615000 [3]成都信息工程大学资源环境学院,四川成都610225

出　　处：《能源与环保》2020年第5期82-86,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：西昌学院两高人才科研支持计划(LGLZ201902)。

摘　　要：采用搅拌吸附的方式研究了钢渣对酸性枣红废水的吸附动力学,研究结果表明,酸性枣红废水的吸光度不受pH值的影响,最大吸收波长为490 nm;钢渣吸附酸性枣红与内扩散模型符合,动力学控制步骤是孔扩散过程;酸性枣红浓度为100 mg/L,搅拌转速达到250 r/min,外扩散影响基本消除;吸附过程符合准二级吸附速率方程,实际平衡吸附量为1.0734 mg/g,与准二级吸附速率方程的拟合结果较为接近,吸附速率为0.071 mg/(g·min)。The adsorption kinetics of steel slag to acid maroon wastewater was studied by means of stirring and adsorption.The results showed that the absorbance of acid maroon wastewater was not affected by pH and the maximum absorption wavelength was 490 nm.The kinetics control step was the pore diffusion process;the concentration of acid date red was 100 mg/L,the stirring speed reached 250 r/min,the effect of external diffusion was basically eliminated;the adsorption process conforms to the quasi-second adsorption rate equation and the actual equilibrium adsorption amount was 1.0734 mg/g,which was close to the fitting result of the quasi-second adsorption rate equation,the adsorption rate was 0.071 mg/(g·min).

关 键 词：钢渣 酸性枣红 废水 吸附动力学 准二级吸附 内扩散 

分 类 号：X52[环境科学与工程—环境工程]