From Nano to Macro: Utilising Iron Chemistry for Contaminated Land Remediation and Pollution Control
Reactions involving iron play a major role in the environmental cycling of a number of important contaminants (e.g. Cr, As, Pu, chlorinated hydrocarbons). Consequently, a range of environmental clean-up technologies have been proposed which utilise iron chemistry to remediate contaminated land and waters, e.g. the use of injected zero valent iron nanoparticles to remediate organic contaminant plumes; the generation of iron-oxyhydroxide substrates for As removal from contaminated waters; etc. This paper reviews some of the latest iron-based technologies in contaminated land remediation, their current state of development, and their potential applications / limitations. Recent work from the University of Brighton is highlighted: (a) on the development of novel, low cost electrical methods of deliberately precipitating iron phases in contaminated soils and sediments as a sorptive barrier / contaminant immobilising phase; and (b) the use, and limitations, of nano-iron particles as clean-up tools in contaminated surface waters and groundwaters. Current projects, funded by the UK government and private industry, are discussed, which are aimed at upscaling and commercialising these techniques to provide robust, safe, easily-applied and cost-effective on-site methods for remediating contaminated soils, sediments and shallow ground and surface waters.
iron contaminated land remediation electrokinetics nanoparticles water treatment
CUNDY A. B HOPKINSON L WHITBY R. L. D
School of Environment and Technology, University of Brighton, Lewes Road, Brighton BN2 4GJ, UK School of Pharmacy and Biomolecular Sciences, University of Brighton, Lewes Road, Brighton BN2 4GJ,
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）