固废焚烧造成的二噁英污染土壤的修复及防治技术

Prevention and Remediation Technology of Dioxins Contaminated Soil by Solid Waste Incineration

随着工业化和城市化进程的推进,经济迅速增长的同时,固体废弃物也在不断增加,给环境带来了巨大压力。焚烧是最常见的固废处理技术之一,固废焚烧所产生的副产物中含有大量的重金属和二噁英。有研究表明,二噁英在焚烧炉附近的土壤中的含量普遍高于其他区域,固废焚烧装置极有可能是土壤中二噁英的重要来源之一。二噁英对低等和高等生物均具有致突变性、致癌性、免疫毒性和致畸性。如何减少固废焚烧所产生的二噁英,开发二噁英的防治技术,对于保护土壤环境十分重要,文章对此进行了综述。

With the advancement of industrialization and urbanization,while the economy is growing rapidly,solid waste is also increasing,which has brought tremendous pressure to the environment.Incineration is one of the most common solid waste treatment technologies.The by-product fly ash produced by solid waste incineration contains a large amount of heavy metals and dioxins.Studies have shown that the content of dioxins in the soil near the incinerator is generally higher than in other areas,and the solid waste incinerator is very likely to be one of the important sources of dioxins in the soil.Dioxins are mutagenic,carcinogenic,immunotoxic and teratogenic to lower and higher organisms.This paper summarizes the technology of how to reduce the dioxin produced by solid waste incineration and develop dioxin prevention technology is very important for soil environmental protection.