【摘要】 植物修复是利用植物的吸收和代谢功能将环境介质中的污染物进行分解、富集和稳定的过程。由于污染物的理化特性和环境行为不同,加之植物新陈代谢的各异,污染物植物修复的作用机理也不尽相同。与其它修复方法相比,植物修复技术投入低、效果好和纯自然,并对土壤功能的维护和土壤生物恢复有积极的作用。本文综述了近年来国外有关植物修复技术在污染治理领域中的研究进展,详细论述了推广应用污染物植物修复过程中应注意的几个技术关键;并就植物修复技术中存在的问题进行了讨论。总之,污染物植物修复技术的发展目前还不完善,就其更为详细具体的作用机理和商业推广的研究还需要做大量的工作。更多还原

【Abstract】 Phytoremediation has a strong potential as a natural, solar-energy driven remediation approach for the treatment of sites, groundwater and wastewater contaminated with various chemicals. The basic mechanism of phytoremediation is the use of green plants natural abilities to remove, contain, inactivate, or degrade constituents of contaminated media. It is inexpensive, effective and green. A special advantage of phytoremediation compared to other treatment methods is that soil functioning is maintained and life in soils is reactivated. In this paper, heavy emphasis is placed on the discussion of relevant processes and existing uncertainties in phytoremediation. This article also intends to give an overview of current development, and an insight into methods and application. A number of external and internal factors are involved in the field application and its basic mechanisms are still under development, so the reality of phytoremediation as an in-situ technique is very different to evaluate. In conclusion, full understanding of phytoremediation would require a more comprehensive study than as it was done in this report.更多还原