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EFFECTIVENESS OF BIOCHAR OBTAINED FROM CORNCOB FOR IMMOBILIZATION OF LEAD IN CONTAMINATED SOIL
Rodriguez, A., D. Lemos, Y. Trujillo, J.G. Amaya, and L.D. Ramos.
Journal of Health & Pollution 9:23(2019)

Biochar produced from corncob was used as an amendment in soils containing 167.62 g/kg of Pb extracted from the Malambo municipality, Colombia. Unmodified biochar was compared to biochar treated with 10% hydrogen peroxide. Unmodified biochar immobilized ≤ 61.46% of lead, while modified biochar obtained only 44.53% retention. A pot experiment was done on both biochars using Pennisetum clandestinum seed for 33 days to compare plant growth in different biochar concentrations in soil. Modified biochar indicated high germination and growth of seeds (≤89.8%). Although the lead immobilization in soil was positive for both cases, further studies are recommended using soil with lower lead concentration levels. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6711329/pdf/i2156-9614-9-23-190907.pdf



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