LIFESCI 2H03 Lecture Notes - Geobacter, Bioremediation, Microorganism
11 Jun 2013
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Document Summary
Distinct zones in which different degradative processes dominate chlorinated compounds are more difficult for microbes in the sub surface to breakdown. Depending on the level of oxygenation there is a shift from microbes using oxygen. Predominate conditions depend on oxygen and level of substrate available. Proximity of source )2 status chlorinated contaminants: dechlorination in the ch2, so42- reduction or. Fe(ii) reduction zones concentration of contaminants plays a role in deciding what processes will take place sulphate reducers iron reducers. Active remediation vs. environmental restoration by natural attenuation. Bioremediation now regarded as the default method for the rehabilitation of polluted environments. Most intensive: ex situ (digging up soil and pumping to areas that will treat) treatments with specialized organisms. Or through: stimulation of indigenous microbial communities. Passive involves monitoring of: in situ natural attenuation. Integrative approaches for assessing the ecological sustainability of in situ. Bioremediation least potential for long term sustainable success in situ bioremediation potential.
