| 改性玉米秸秆吸附处理含Cu废水 |
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| 引用本文： | 蒋小丽,李杰霞,杨志敏,陈玉成.改性玉米秸秆吸附处理含Cu废水[J].西南大学学报,2009,31(11). |
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| 作者姓名： | 蒋小丽 李杰霞 杨志敏 陈玉成 |
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| 作者单位： | 蒋小丽,李杰霞,JIANG Xiao-li,LI Jie-xia(西南大学资源环境学院,重庆,400716);杨志敏,陈玉成,YANG Zhi-min,CHEN Yu-cheng(西南大学资源环境学院,重庆400716;重庆市农业资源与环境重点实验室,重庆400716) |
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| 基金项目： | 重庆市科技攻关重点项目 |
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| 摘 要： | 以玉米秸秆为原料,采用微波加热-氯化锌活化法进行改性,探讨了吸附剂投加量、pH值、温度等因素对废水中Cu去除率的影响.结果表明,吸附剂对模拟废水中Cu的最高去除率可达90%以上;当pH值在5.0～6.0间、温度为30～35℃、吸附剂投加量为20 g/L,吸附时间为60 min时达最佳去除效果;等温吸附曲线可用Langmuir、Temkin和Freundlich模型拟合,前二者拟合较好.Abstract：Adsorption of Cu from wastewater onto modified corn stalk impregnated with zinc chloride by microwave heating was investigated. The adsorption was studied by considering the effects of various pa-rameters on the removal rate of Cu, such as pH, the dosage of absorbent and temperature. The results showed that the modified absorbent used in this study was efficient , with a removal ratio of Cu up to 90%or more. Optimum results of Cu removal were obtained with a pH of 5.0～6.0, at 30～35℃and with an adsorbent dosage of 20 g/L and an adsorption time of 60 min. The Langmuir, Temkin and Freundlich equa-tions can describe the absorption characteristics of Cu, the Langmuir and Temkin equations being better.
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| 关 键 词： | 玉米秸秆 改性 铜 吸附 |
Treatment of Wastewater Containing Copper with Modified Corn Stalk |
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| JIANG Xiao-li,LI Jie-xia,YANG Zhi-min,CHEN Yu-cheng.Treatment of Wastewater Containing Copper with Modified Corn Stalk[J].Journal of Southwest Agricultural University,2009,31(11). |
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| Authors: | JIANG Xiao-li LI Jie-xia YANG Zhi-min CHEN Yu-cheng |
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