Reclamation Of Heavy Metal Contaminated Soil By Using Biochar As Soil Conditioner
Volume 2 - Issue 6, June 2018 Edition
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Nyo Nyo Mar, Lianxi Huang, Zhongzhen Liu
Biochar; Sustainable; Raw materials; Contaminated; Sorption
Increasing population density and scarce funds available for environmental restoration gearing to explore and speed-up the low-cost and ecologically sustainable remedial options to restore contaminated lands so as to reduce the associated risks, make the water and land resources available for agricultural production, enhance food security and scale down the land tenure problems. Biochar is a carbon negative, charcoal based, soil amendment that can be designed to help reclaim and improve marginal soils by increasing soil water holding capacity and enhancing fertility, while also generating high-value renewable energy co-products during its production. In this study, the soil samples collected form a field which is assumed to be contaminated with various heavy metals (esp: Cd and Pb) was conducted to reclaim by using biochar from difference raw material sources (coconut shell, peanut shell, wheat straw, rice husk and biogas byproduct) with the same dosages. Biochar from coconut shell was used in three difference particle sizes 30-60 mesh, 60-80 mesh and 80-200 mesh. The experiment was carried out in pot trial under nursery house with four replicas. Soil organic matter analysis, pH, cation exchange capacity of soil, N, P, K assimilation and incorporated heavy metal concentration from both soil and plant samples were tested in order to know the effect of amended biochar. The purpose of this research is to evaluate the effectiveness of biochar from difference raw material sources to reduce levels of heavy metal in the soil through the analysis of their status and sorption behavior on biochar. The research was conducted at Guangdong Academy of Agricultural Science, Guangzhou, China.
 Al Agely, A., Sylvia, D. M., and Ma, L. Q, “Mycorrhizae increase arsenic uptake by the hyperaccumulator Chinese brake fern (Pteris vittata L.)” Journal of Environmental Quality, VI, 2181–2186, 2005.
 F . Rees , M. O. Simonnot, J. L. Morela, “Short-term Effects of Biochar on Soil Heavy Metal Mobility are Controlled by Intra-particle Diffusion and Soil pH Increase”, European Journal of Soil Science., 65, 149–161, 2004.
 Lehmann, “A handful of carbon in Nature”, 447. 2007
 Kassam, A. H., van Velthuizen, H.T., Fischer, G.W. and Shah, M. M., “Resources Data Base and Land Productivity. Agro-Ecological Land Resource Assessment for Agricultural Development Planning: A Case Study of Kenya, Soil Resources Report”, 1991.
 Zyrin, D. and Orlov, D. (eds.), “Physical and chemical investigation of soil,” Moscow: Publishing House of Moscow State University. 382 p /in Russian, 1980.
 Zimmerman, A.R, “Abiotic and Microbial Oxidation of Laboratory-Produced Black Carbon (Biochar)”, Environmental Science and Technology, 2010.
 Beesley, L. Moreno-Jiménez, E. Gomez-Eyles, J.L, “Effects of biochar and Green Waste Compost Amendments on Mobility, Bioavailability and Toxicity of Inorganic and Organic Contaminants in a Multi-element Polluted Soil,” 2010.
 Johannes Lehmann, Stephen Joseph, Journal of Science and Technology, “Biochar for Environmental Management” Science and Technology, 4-449, 2009.
 Ogawa, M, “Utilization of Symbiotic Microorganisms and Charcoal in Tropical agriculture and Forestry and CO2 Fixation” Soil Microorganisms, 73–79,1999.
 Jin, H., Lehmann, J. and Thies, J. E. (2008) ‘Soil Microbial Community Response to Amending Maize Soils with Mmaize Stover Charcoal’, in Proceedings of the 2008 Conference of International Biochar Initiative, 2008.
 Uchimiya, M., Lima, I. M., Klasson, K. T., and Wartelle, L. H, “Contaminant Immobilization and Nutrient Release by Biochar Soil Amendment”, 935–940, 2010.
 Rhodes, A.H., Carlin, A., Semple, K.T., “Impact of Black Carbon in the Extraction and Mineralization of Phenanthrene in Soil,” Environmental Science and Technology, 42. 2008.
 P.Meynet, E. Moliterni, R.J. Davenport, W.T. Sloan., J. V. Camacho., D. Werner, “Predicting the Effects of Biochar on Volatile Petroleum Hydrocarbon Biodegradation and Emanation from Soil”, Soil Biology and Biochemistry, 30-40, 2014.
 Lu, H., Zhang, Y. Y., Huang, X., Wang, S., and Qiu, R, “Relative Distribution of Pb2+ Sorption Mechanisms by Sludge-derived Biochar,” 854–862, 2012.
 M. Ghosh and S. P. Singh, “A review on Phytoremediation of Heavy Metals and Utilization of Its Byproducts,” Applied Ecology and Environmental Research, Vol. 3, No. 1, 1–18, 2005.
 Hartley, W., Dickinson, N. M., Riby, P., and Lepp, N. W, “Arsenic Mobility in Brownfield Soils Amended with Green Waste Compost or Biochar and Planted with Miscanthus,” 2654–2662, 2009.
 Kabata-Pendias, A. and Pendias, H.. “Trace Elements in Soil and Plants,” CRC press, 403, 2001.
 S. Dushenkov, “Trends in Phytoremediation of Radionuclides,” Plant and Soil, 249, 167–175, 2003.
 H. S. Helmisaari, M. Salemaa, J. Derome, O. Kiikkil¨o, C. Uhlig, and T. M. Nieminen, “Remediation of Heavy Metal Contaminated Forest Soil Using Recycled Organic Matter and Native Woody Plants,” Journal of Evironmental Quality, 36, 1145–1153, 2007.
 Zimmerman, A.R., “Abiotic and Microbial Oxidation of Laboratory-Produced Black Carbon (Biochar),” Environmental Science and Technology, 44, 2010.