资源与生态学报 ›› 2011, Vol. 2 ›› Issue (2): 97-105.DOI: 10.3969/j.issn.1674-764x.2011.02.001

• 论文 •    下一篇

基于杂草植物的石油烃污染土壤生态修复

周启星, 蔡章, 张志能, 刘维涛   

  1. 南开大学环境科学与工程学院,环境污染过程与基准教育部重点实验室,天津 300071
  • 收稿日期:2010-11-05 修回日期:2011-01-24 出版日期:2011-06-30 发布日期:2011-06-28
  • 通讯作者: ZHOU Qixing. Email: zhouqx@nankai.edu.cn.

Ecological Remediation of Hydrocarbon Contaminated Soils with Weed Plant

ZHOU Qixing, CAI Zhang, ZHANG Zhineng, LIU Weitao   

  1. Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
  • Received:2010-11-05 Revised:2011-01-24 Online:2011-06-30 Published:2011-06-28
  • Supported by:

    National Natural Science Foundation of China (40930739; 21037002).

摘要: 在过去的几十年内,人们在致力于采用合适的原位修复技术以加速对现有人为污染的石油烃的降解与净化方面做了大量工作。至今,原位植物修复,即采用高等植物去除、稳定、降解和/或代谢有毒有害污染物的方法,已经成为对石油烃污染环境治理修复的具有前途的新兴技术。杂草植物由于具有大量的纤维根系和极为强壮的特征,因其有助于穿透污染土壤而建立一个强大的根际圈,进而在植物修复方面一般表现为巨大的潜力。本综述首先对石油烃污染土壤实施植物修复所涉及的一些重要机制,包括植物积累、植物稳定、植物降解、植物挥发和根际降解作用,进行了概述和探讨。近年来,在进一步促进石油烃污染土壤的植物修复效率方面,改进并研制了相当数量的实验方法。此外,来自实验研究结果的成功给予研究人员以极大的鼓励,尤其促使人们在田间尺度上实施石油烃污染土壤的植物修复方面做了一些有益的尝试。然而,所有这些工作均存在着诸多局限和困难,有待我们去克服,从而使我们的研究从实验室的尺度发展到田间的应用上。

关键词: 石油烃(PHCs), 杂草植物, 植物修复, 污染土壤, 综述

Abstract: Considerable efforts have been undertaken to accelerate the breakdown of existing anthropogenic petroleum hydrocarbons (PHCs) by appropriate in situ remediation technologies. In situ phytoremediation, using higher plants to remove, stabilize, degrade, and/or metabolize hazardous contaminants, has emerged as a promising green technology for cleaning up environments contaminated with PHCs. Weed plants are generally considered to have great potential for use in phytoremediation due to their extensive fibrous root systems and relatively robust characteristics, thus helping establish a strong rhizosphere through contaminated soils. In this review, some important mechanisms involved in phytoremedation of PHC contaminated soils, including phytoaccumulation, phytostabilization, phytodegradation, phytovolatilization, and rhizodegradation, were summarized and discussed. In recent years, a large number of laboratory approaches have been developed to further enhance the phytoremediation efficiency of PHC contaminated soils. The success of these laboratory studies has encouraged researchers to attempt phytoremediation of PHC contaminated soils in the field. However, many limitations still exist in order to successfully apply laboratory experiments to trials in the field.

Key words: Petroleum hydrocarbons (PHCs), weed plants, phytoremediation, contaminated soil, review