Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 174, Issue 1-3, Pages 1-8Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2009.09.113
Keywords
Heavy metals; Soil; Phytoremediation; Microremediation; Eco-environmental concerns; Perspective
Categories
Funding
- One hundred-Talent Plan of Chinese Academy of Sciences
- 973 Program of China [2007CB106803]
- CAS/SAFEA International Partnership Program for Creative Research Teams
- CAS-local government Cooperative Project
- Cooperative & Instructive and Awarding Foundation of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [10501-HZ, 10501-JL]
Ask authors/readers for more resources
Mechanism of four methods for removing hazardous heavy metal are detailed and compared-chemical/physical remediation, animal remediation, phytoremediation and microremediation with emphasis on bio-removal aspects. The latter two, namely the use of plants and microbes, are preferred because of their cost-effectiveness, environmental friendliness and fewer side effects. Also the obvious disadvantages of other alternatives are listed. In the future the application of genetic engineering or cell engineering to create an expected and ideal species would become popular and necessary. However, a concomitant and latent danger of genetic pollution is realized by a few persons. To cope with this potential harm, several suggestions are put forward including choosing self-pollinated plants, creating infertile polyploid species and carefully selecting easy-controlled microbe species. Bravely, the authors point out that current investigation of noncrop hyperaccumulators is of little significance in application. Pragmatic development in the future should be crop hyperaccumulators (newly termed as cropaccumulators) by transgenic or symbiotic approach. Considering no effective plan has been put forward by others about concrete steps of applying a hyperaccumulator to practice, the authors bring forward a set of universal procedures, which is novel, tentative and adaptive to evaluate hyperaccumulators' feasibility before large-scale commercialization. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available