Soil contamination refers to the presence of toxic chemical substances such as volatile organic compounds, aliphatic and aromatic hydrocarbons such as benzene, toluene and xylene, heavy oils, cracking by-products of oil derivatives, radio-nucleotides, heavy metals, solvents and chlorinated compounds, polycyclic aromatic hydrocarbons, phenols, halogenated pesticides, nitrogenated amines, esters, alcohols and intermediate products, which can negatively affect soil quality, affecting vegetation and water wichch, constitutes a risk to human and wildlife health. Soil contamination with hydrocarbons can be treated through biological processes using organisms such as bacteria and fungi or plants to reduce or eliminate hazardous compounds. Of these, Enretech-1 stands out the bio-remediation process.
The objective of the work was to determine the Biochemical status of agricultural fields in the region of São Vicente in Cabinda Province which are affected by contamination of hydrocarbon to evaluate the percentage degree of presence of each hydrocarbon particle in the soils, and to recommend the soil correction method. Fifteen soil samples were collected from different points, at a distance of 50 meters from each other, in each field that were later analyzed in the laboratory. The results of the analyzes showed contamination efficiency, whose effects were quite decisive in the deterioration of these soils. For soil correction, the Bioremediation technique of the Enretech-1 method was used.
The laboratory results showed that the level of soil contamination exceeded the established limits, which resulted in soil degradation, losing its productive capacity. Laboratory tests were not performed to evaluate the soils after application of Enritech-1, therefore the studies should continue.
Numerous literatures report the effectiveness of cleaning with the Enritech-1 method, for an 82% reduction in total hydrocarbons (TPH) in 77 days.
Impact Factor
2022: 6.012
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