高氯酸盐污染土壤及地下水的植物-微生物修复研究进展

高氯酸盐（ClO4-）是一种新兴的持久性污染物,其环境污染问题引起了高度关注.由于人为和自然来源造成土壤及地下水大范围ClO4-污染,控制与修复ClO4-污染环境成为新的研究热点,其中植物和微生物修复最具应用前景,但我国相关研究甚少.本文总结了ClO4-污染土壤及地下水植物修复的作用机制及影响因素,包括植物吸收积累、植...

A review of phyto-microbial remediation of perchlorate-contaminated soil and groundwater

Perchlorate (ClO4-) is a new emerging persistent pollutant, and its related environmental problems cause a great concern. Due to many anthropogenic and natural sources, ClO4- is widespread in soil and groundwater environments. Control and restoration of ClO4--contaminated environments become a new research focus. Phyto-microbial remediation is the most promising technology to abate ClO4- pollution, but few researches were reported in China. This paper reviews phyto-microbial remediation of ClO4--contaminated soil and groundwater and its influential factors with 86 references. The phytoremediation mechanism for ClO4- is illustrated from phytoextraction, phytodegradation, and rhizodegradation. To elucidate the combined effect of phyto-microbial remediation, plant rhizodegradation is discussed on microbial metabolic pathway, and the effects of exogenous additives and environmental conditions. The research trends and currently existing problems are prospected.