The plant is effective in restoring soil contaminated by petroleum hydrocarbons in several ways. The degradation by enzymes from the plant directly. The accumulation of petroleum hydrocarbons within the biomass of roots or shoots. And supported by the decomposition of plant roots secrete substances to stimulate the activity of micro-organisms that live around the plant roots. However, since contamination of compounds, petroleum hydrocarbons in the environment is often contaminated with pollutants, many other species, so the treatment of pollutants, thereby causing complete in one step can be difficult and may not indicate exactly go down. how well treatment is appropriate
, therefore, may require a combination of several methods. The plants were used in the restoration of environments contaminated with petroleum hydrocarbons, to study the factors that affect treatment carefully. Because of the growth of plants depends on the climate. And an environment that is difficult to control.
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