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添加剂对机械化学处理铅的影响+文献综述

时间:2017-08-09 12:50来源:毕业论文
探究在球磨过程中的球的种类、球磨时间、球料比、球磨转速、不同添加剂等实验条件进行初步比较研究基础之上,综合全面应用X射线荧光光谱法检测和分析数据,探索出添加剂和最优
摘要:机械化学技术使用机械力的方法处理环境污染物,破坏污染物分子结构,以达到无害化和修复环境的效果。本实验用机械化学的方法并添加辅助物研究土壤重金属污染物铅,致使其结构、物理化学性质和形态发生变化,并进而发生化学变化,以达到固定铅并进行环境修复的目的。同时探究在球磨过程中的球的种类、球磨时间、球料比、球磨转速、不同添加剂等实验条件进行初步比较研究基础之上,综合全面应用X射线荧光光谱法检测和分析数据,探索出添加剂和最优化的实验控制条件,在模型重金属样品中高效的提高球磨效率,降低环境中重金属的含量,达到很好的解决重金属铅污染问题。最终,根据具体土壤中具体的酸碱环境和重金属污染物的形态分析,选择合适的添加剂以及相关实验控制条件,获得预期的优化试验方案,达到很好的提高球磨效率,降低环境中重金属铅的含量,解决重金属污染问题。12310
关键词:X射线荧光光谱分析法,重金属,球磨,机械化学,添加剂
Effect of additives on lead in mechanical chemical treatment
Abstract: Mechanical and chemical technology using mechanical methods to deal with environmental pollutants, destroy the molecular structure of pollutants in order to achieve the effect of sound and repair the environment. The experimental method for chemical mechanical and add auxiliary research of soil heavy metals lead, resulting in the structure, physical and chemical properties and morphology change, and then a chemical change takes place, to lead immobilization and environmental remediation. And at the same time to explore the ball in the ball milling process type, ball milling time, ball material: a preliminary comparison study based on ratio, milling speed, different additives and other experimental conditions, comprehensive application of X ray fluorescence spectrometry detection and analysis of data, to explore additives and optimization of the control conditions, in the model of heavy metal in the sample is efficient to improve the milling efficiency, reduce the content of heavy metals in the environment, achieve very good solve the heavy metal lead pollution problems. Eventually, according to the analysis of the morphology of the specific soil specific pH and heavy metal pollutants, suitable additives and the control conditions, obtain the expected optimal experiment scheme, achieve very good improve the milling efficiency and reduce the content of heavy metal lead, solve the problem of heavy metal pollution.

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Keywords: X - ray fluorescence spectrometry, heavy metals, ball milling, mechanical chemistry, additives
目录
1 前言    1
1.1 开题依据    1
1.2 文献综述    1
1.2.1 重金属污染的治理    1
1.2.2 机械化学方法    2
1.2.3 重金属元素的迁移特性ICP分析    4
1.2.4  小结    6
2.仪器与试剂    6
2.1 仪器:    6
2.2试剂:    7
2.3 样品来源    7
3.实验内容    7
3.1 实验准备    7
3.1.1 实验方法的建立    7
3.1.2制作样品    7
3.2 分析方法    8
3.2.1标样的处理    8
3.2.2样品的处理    8
3.2.3 XRF仪器的使用    8
4.结果与讨论    8
4.1标准曲线    8
4.2机械处理实验条件的选取    9
4.2.1 球的种类    9
4.2.2 球磨时间    10
4.2.3 球料比    11
4.2.4 球磨转速    12
4.2.5 添加剂的选择    13 添加剂对机械化学处理铅的影响+文献综述:http://www.lwfree.cn/huaxue/20170809/12031.html
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