地下水氰化物污染的修复技术简介  

Introduction of groundwater cyanide remediation technology

作　　者：康阳[1] 刘伟江[1] 文一[1] 陈坚[1] 张昭昱[1] 

机构地区：[1]环境保护部环境规划院,北京100012

出　　处：《环境污染与防治》2016年第5期90-94,共5页Environmental Pollution & Control

基　　金：国家科技计划项目(No.2012FY113000);华北平原典型地区地下水污染防控技术体系研究项目(No.201309004)

摘　　要：氰化物是一种有剧毒的化合物,然而因为它和金属有很强的亲和力,被广泛应用于冶金行业中,冶金工业废水中含有大量的氰化物。理论上来说,储存环境和工作流程都可以做到安全环保,不会发生泄漏,但当发生事故时,氰化物很容易造成严重的地表水和地下水污染。氰化物进入地下水后,会有3种形态:自由氰基、可分解性弱酸氰化物(WAD)和可分解性强酸氰化物(SAD)。重点介绍了几种可行性较好的备选地下水氰化物污染修复技术,并对其适用范围、污染种类作出比较分析。Cyanide （CN-） is a well known toxic species that is found predominantly in the industrial effluents generated through metallurgical processing. Cyanide has strong affinity for metals that makes it as a favorable agent. Theoretically,these technologies are environmentally safe but require precautionary measures to prevent accidental spills from pollution of soils as well as surface water and groundwaters. Various methods of cyanide remediation by separation and oxidation are common and therefore reviewed herein. Reaction mechanisms were also provided. The methods were compared with their effectiveness in treating various cyanide species as free cyanide,weak-acid dissocia- bles （WAD） and strong-acid dissociables （SAD）.

关 键 词：地下水 氰化物 修复 

分 类 号：X523[环境科学与工程—环境工程]