As a consequence of the link of polycyclic aromatic hydrocarbons (PAHs) to adverse health effects in the human population, efforts should be made to reduce or even eliminate them wherever possible. The limited pore water and contaminant movement in tight soils poses problems for traditional soil cleansing processes, which makes remediation of sediments contaminated with persistent PAH one of the more intractable environmental problems. Iimovative, new techniques are required for cleaning up PAHs contaminated sediment. In recent years, the application of electrochemistry to environmental pollution treatment has been thoroughly investigated and electrochemical remediation is shown to be more suitable to the removal of organic pollutants from low-permeability soils and sediments, but problems with removing PAHs still exist because of their low aqueous solubility and high preferential sorption to soils and sediment. The promising results from the complete destruction of PAHs from wastewater permit to consideration of the electrochemical technology as an alternative to PAH contaminated sediment.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:497444 |
| Date | January 2009 |
| Creators | Xu, Jing |
| Publisher | University of Manchester |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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