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| 钝化剂对重金属的吸附及其吸附机理的研究 | |
| 引用本文： | 黄雅曦,李季,李国学,杨合法,黄妍,徐连双.钝化剂对重金属的吸附及其吸附机理的研究[J].东北农业大学学报,2008,39(8). |
| 作者姓名： | 黄雅曦 李季 李国学 杨合法 黄妍 徐连双 |
| 作者单位： | 1. 黑龙江大学农学院,哈尔滨,150080 2. 中国农业大学资源与环境学院,北京,100094 3. 中国农业大学曲周试验站,河北邯郸,057250 4. 黑龙江省经济作物技术指导站,哈尔滨,150090 5. 大庆油田新世纪实业公司,黑龙江大庆,163453 |
| 摘 要： | 试验探讨了静态条件下沸石和草炭对重金属离子的吸附特性和吸附热力学性质。结果表明,重金属钝化剂沸石和草炭中加入重金属溶液(Cu2+、Mn2+、Zn2+、Pb2+、Cd2+)的浓度越大,钝化剂对重金属离子的吸附量越多;不同钝化剂对重金属离子的吸附能力略有不同,草炭>沸石;草炭对重金属的吸附亲和力顺序为Zn2+>Mn2+>Cu2+>Cd2+>Pb2+;沸石的为Zn2+>Cu2+>Mn2+>Cd2+>Pb2+;两种钝化剂对重金属的吸附等温线与Freundlich和Temkin方程均有较好的拟合性,Langmuir方程不适宜描述两种钝化剂对重金属的等温吸附过程,其等温线符合Freundlich吸附等温模型。 |
| 关 键 词： | 钝化剂 等温吸附 重金属 |
Effect and mechanism of the heavy metals absorption by passivator |
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| HUANG Yaxi,LI Ji,LI Guoxue,YANG Hera,HUANG Yan,XU Lianshuang.Effect and mechanism of the heavy metals absorption by passivator[J].Journal of Northeast Agricultural University,2008,39(8). | |
| Authors: | HUANG Yaxi LI Ji LI Guoxue YANG Hera HUANG Yan XU Lianshuang |
| Abstract: | The experirment is conducted to study the absorption charcterictics and absorption thermodynamic properties of zeolite and peat to heavy metal under static state condition.The results showed that the larger addition concentration of heavy metals(Cu2+,Mn2+,Zn2+,Pb2+,Cd2+) in zeolite and peat was,the absorption of heavy metals ions is more;the absorption ability of different passivation reagents on ions of heavy metals had a little difference,peat>zeolite;the absorption appetency order of peat on heavy metals: Zn2+>Mn2+>Cu2+>Cd2+>Pb2+;the order of zeolite: Zn2+>Cu2+>Mn2+>Cd2+>Pb2+,both absorption isotherm had better inosculation with Freundlich and Temkin formula,Langmuir formula was unfit to describe the isothermal absorption of both passivation reagents on heavy metals,its isotherm fit the Freundlich isothermal absorption model. |
| Keywords: | passivator absorption tested heavy metals |
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