高含硫气井井喷事故污染土壤的植物修复研究——以重庆市开县“12·23”特大井喷事故为例

Phytoremediation of the Soil Environment Polluted by High-sulphur Gas-wells Blowout Accidents——Take the "12·23" Serious Blowout Accident Kaixian,Chongqing as an Example

以重庆市开县"12.23"特大井喷事故为例,对高含硫气井井喷污染土壤展开修复研究。首先根据土壤污染程度提出了植物提取修复方案,实施修复后再次测量污染物含量以验证修复方案的效果。结果表明,柳树、杂草等对受污染土壤重金属Zn、Cd的修复效果很好,使其含量降低了近60%;首次发现大黄对环境硫污染的修复效果很好,使硫含量降低约77%;利用植物提取可有效修复高含硫气井井喷污染,为类似事故造成的土壤环境污染的快速修复提供了理论支持。

In this paper, the world- known ＂12 ·23＂ serious blowout accident in Kaixian County, Chongqing was taken as an example. This work was attempted to rehabilitate the soil environment which polluted by high - sulphur gas - wells blowout accidents. Firstly, put forward the plant extracts plan according to the degree of soil pollution. Then, the contents of pollutants had been re - measured in order to verify the effects of that rehabilitation program. And resuhs show that some plants especially willows and weeds had rehabilitated the environment very well ; they made the contents of Cd and Zn decreased nearly 60%. It had found that rhubarb could repair the sulfur pollution quite well and the content of sulfur had reduced about 77%. So phytoremediation of the soil environment pollution could be effectively and this paper had provided theory significance for the rehabilitation after a similar incident in the future.