Eisenia fetida Squirms Biased Bioremediation of Pyrene and Indeno(1, 2, 3–cd)Pyrene Soil and Petroleum Wastewater Contamination
C. Fawole, D. A. Dashak, S. J. Salami, S. Abdulmumin, M. R. Larbong, H. A. Chimezie-Nwosu
Current Journal of Applied Science and Technology · pp. 55–61 · Published 25 Feb 2022
10.9734/cjast/2022/v41i231652Abstract
Raw mean levels of pyrene (pyr) and indeno(1,2,3-cd)pyrene petroleum wastewater were 8.00±0.00 and 9.20±0.03 mg/L respectively. Petroleum wastewater impacted soil gave Pyr (8.00±0.01) and Ind (9.50±0.00) mg/kg. The biased and effective nature of Eisenia fetida vermiaccumulated Pyr (6.94±0.02 mg/kg) and Ind (7.56±0.01 mg/kg), had vermiremoval efficiency of Pyr (86.75%) and Ind (82.17%). Thus, the treatment unit indicated Pyr (0.07±0.00 mg/kg) and Ind (0.00±0.00 mg/kg) for soil with petroleum wastewater sample while petroleum wastewater sample was Pyr (0.00±0.00 mg/L) and Ind (0.00±0.00) within 5 weeks detention period. Identifications and quantifications of the two polycyclic aromatic hydrocarbons (2PAHs) Pyr and Ind were carried out by GC/MD in accordance to manufacturer’s operational specifications. E. fetida squirms were proven bioremediation tools, capable to remove or detoxify the two environmental health contaminants from the contaminated pilot ecosystem.
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