硼泥对含铜酸性废水的吸附性能  

Treatment of Copper-containing Acid Wastewater with Boron Mud:Adsorption Performance

作　　者：肖利萍 李嘉欣[2,3] 王涛 卢洪斌 XIAO Liping;LI Jiaxin;WANG Tao;LU Hongbin(College of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China;School of Civil Engineering,Liaoning Technology University,Fuxin 123000,China;Chinese Research Academy of Environmental Sciences,Beijing 100012,China;School of Environmental Science and Engineering,Liaoning Technology University,Fuxin 123000,China;College of Water Science,Beijing Normal University,Beijing 100875,China)

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266033 [2]辽宁工程技术大学土木工程学院,辽宁阜新123000 [3]中国环境科学研究院,北京100012 [4]辽宁工程技术大学环境科学与工程学院,辽宁阜新123000 [5]北京师范大学水科学研究院,北京100875

出　　处：《环境科学与技术》2020年第7期94-100,共7页Environmental Science & Technology

基　　金：国家自然科学基金(51474122,51174267);辽宁省教育厅科研基金重点项目(ZL002);辽宁省“百千万人才工程”资助项目(2014921069)。

摘　　要：为解决水体中铜离子污染以及硼泥资源化利用的问题,文章采用硼泥处理含铜酸性废水。通过控制不同反应条件进行单因素实验,观察投加量、溶液p H、反应时间以及转速对含Cu^(2+)废水的处理效果和变化规律。结果表明:硼泥对Cu^(2+)的去除率随投加量、溶液p H、反应时间、转速的升高而增大。通过正交实验可确定处理体积为100 mL,Cu^(2+)浓度为200 mg/L的水样,最佳反应条件是投加0.45 g硼泥,调节p H为6,在200 r/min、25℃的条件下振荡180 min,去除率可达98.43%。硼泥对Cu^(2+)的等温吸附符合Freundlich模型,吸附动力学符合准二级动力学模型。利用硼泥处理含铜酸性废水可实现固废资源化利用,值得深入推广研究。A laboratory experiment was conducted using boron mud to treat copper-containing acid wastewater for the purpose of addressing the problem of water pollution by copper ion,and meantime realizing resource utilization of boron mud.So the single-factor test was carried out through controlling different reaction conditions such as boron-mud addition amount,solution pH,reaction time and rotating speed,to investigate Cu^(2+)containing wastewater treatment focusing on the Cu^(2+)removal effect and the changes law.The results showed that the removal rate of Cu^(2+)grew with the increase of boron-mud addition amount,raising of pH value,longer reaction time and faster rotating speed;and optimized condition was determined through the orthogonal experiment with the water samples volume of 100 mL and Cu^(2+)concentration of200 mg/L,which was addition of 0.45 g boron mud,solution pH 6,oscillating 180 min at 200 r/min and solution temperature 25℃,thus the removal rate can reach 98.43%.Furthermore,the isothermal adsorption of Cu^(2+)by boron mud fit the Freundlich model and the adsorption kinetics conformed to the quasi-second order kinetic model.In short,use of boron mud to treat copper-containing acid wastewater can realize the utilization of solid waste,which is worthy of further research.

关 键 词：含铜酸性废水 重金属离子 Cu^(2+) 硼泥 吸附性能 

分 类 号：X703[环境科学与工程—环境工程]