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" "We also learn from them. They have planting techniques that we don't know - they teach us how to make the solution work in their area.
Eucharia Oluchi Nwaichi is a Nigerian environmental biochemist, soil scientist and toxicologist. Her research interest focus on waste management, pollution prevention and phytoremediation, which involves the treatment of environmental problems (bioremediation) through the use of local plants that mitigate the environmental problem without the need to excavate the contaminant material and dispose of it elsewhere. She is an expert in elimination of toxic heavy metal such as cadmium, copper, mercury, lead and arsenic from contaminated soil.
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Crude oil has many components. In the soil, it leaves high concentration of heavy metals, which are inorganic and cannot be degraded by micro-organisms. The current practice by polluters is to use excavations, but that is only shifting the goal post. The goal is to reduce the contaminants to the barest minimum. Polluted land can become viable for agriculture again. I will study a similar process in Poland.