| 混凝土在重金属环境中的暴露研究 |
| |
| 引用本文： | 谢田,邓冠南,高小峰,兰思杰,黄晟,赵由才.混凝土在重金属环境中的暴露研究[J].有色冶金设计与研究,2014(3):43-46. |
| |
| 作者姓名： | 谢田 邓冠南 高小峰 兰思杰 黄晟 赵由才 |
| |
| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室,上海市200092 |
| |
| 基金项目： | 环保公益性行业科研专项项目,建筑废物处置和资源化污染控制技术研究（201309025）. |
| |
| 摘 要： | 研究了混凝土暴露在重金属环境中的污染特征,采用Zn、Cu、Pb、Cr、Cd单一溶液及混合溶液浸泡C20混凝土试块,分析了重金属在混凝土剖面的分布规律。结果表明,重金属主要分布于混凝土表层1 cm内,1cm深度混凝土中重金属含量接近背景含量,建议在受重金属污染的混凝土构筑物拆除无害化处理处置中,可对其进行表层剥离。
|
| 关 键 词： | 混凝土 建筑废物 重金属 浸入深度 分布规律 |
Exposure of Concrete to Heavy Metal |
| |
| Authors: | XIE Tian DENG Guannan GAO Xiaofeng LAN Sijie HUANG Sheng ZHAO Youcai |
| |
| Affiliation: | (State Key Laboratory of Pollution Control ＆ Resources Reuse, Tongji University, Shanghai 20092 China) |
| |
| Abstract: | Aimed at providing basic data in management of heavy metal polluted construction and demolition waste （C＆DW）, this paper establishes the exposure of concrete to heavy metal. Immersion of C20 concretes in Zn, Cu, Pb, Cr, Cd solution and their mixed solution was conducted in research, and analyzing the heavy metal distribution in different depths of concrete was followed. The results showed that heavy metals were concentrated at concrete surface depth of less than 1cm, heavy metal concentrations in depth beyond lcm were close to the background value. Distinguished approaches can be executed to separate the surface part and dispose safely in heavy metal polluted C＆DW treatment. |
| |
| Keywords: | concrete construction and demolition waste（C＆DW） heavy metal permeation depth |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
