摘要:
1,4-二噁烷被美国环保署(US EPA)认为是一种可能的人类致癌物质,工业废水的排放和人类对于护理品的大量使用,加剧了自然水体的1,4-二噁烷污染。1,4-二噁烷水溶性好,迁移性强,且难以生物降解,需要寻求技术可行、成本节约的处理技术,降低其环境危害。文章对1,4-二噁烷的环境污染问题做了介绍,总结了1,4-二噁烷污染地下水和水源水的处理技术,对监测下的自然削减、相转移分离技术、植物修复技术、微生物技术以及化学氧化技术的研究进展进行了归纳和评述,对我国的相关研究做出了评价和展望。
Abstract:
1,4-dioxane is considered as a"likely"human carcinogen by the USEPA. Industrial wastewater discharge and extensive use of personal care products aggravate the pollution of natural water body by 1,4-dioxane globally. 1,4-dioxane features good water solubility, high mobility and resistance to biodegradation. Therefore, it is necessary to develop efficient and low-cost treatment technologies to reduce the harm from 1,4-dioxane pollution. In this paper, the environmental pollution caused by 1,4-dioxane is introduced and the treatment technologies for 1,4-dioxane contaminated water are further summarized. Recent progress in the study of several technologies including natural attenuation in monitoring, phase-transfer separation method, phytoremediation, bioremediation and chemical oxidation methods are reviewed and discussed. Relative researches in China are also evaluated with prospects for the future orientation.