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Burden of industrial waste and potential for recycling: technological, economic and environmental aspects

, A. (2006). Red mud and fly ash for remediation of mine sites contaminated with As, Cd, Cu, Pb and Zn. Journal of Hazardous Materials, 134 (1–3), 112 - 119. Bryan, C.G., Hallberg, K.B., Johnson, D.B. (2006). Mobilisation of metals in mineral tailings at the abandoned São Domingos copper mine (Portugal) by indigenous acidophilic bacteria. Hydrometallurgy. 83 (1–4), 184-194. Ciccu, R., Ghiani, M., Serci, A., Fadda, S., Peretti, R., Zucca, A. (2003). Heavy metal immobilization in the mining-contaminated soils using various industrial wastes. Minerals

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The Effects of the Addition of Vegetable Oil on the Viscosity of Used Marine Engine Oil Marinol RG 1240

REFERENCES Kalam, M.A., Masjuki, H.H., Haeng, Muk Cho, Mosarof, M.H., Md. Iqbal Mahmud, Mohammad Asaduzzaman Chowdhury, Zulkifli, N.W.M. (2017) Influences of thermal stability, and lubrication performance of biodegradable oil as an engine oil for improving the efficiency of heavy duty diesel engine. Fuel, 196, pp. 36-46. Malinowska, M. (2017) The full or partial replacement of mineral marine engine oil with vegetable oil, on the example of rapeseed oil. Journal of KONES, 24, 1, pp. 247-255. Erhan S.Z., Asadauskas S. (2000) Lubricant basestocks

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The Restriction of Individual Performance of PGPR on Maize Nutrient Uptake by Antagonistic Relations

. Ekoloji 15(57), 15-25 (in Turkish). Doung T.P., Diep C.N., Khiem N.T., Hiep N.H., Toi N.V., Lich N.V., Nhan T.K., 1984. Rhizobium inoculant for soybean (Glycine max L. Merril) in Mekong Delta. Plant and Soil 79:241-247. El-Howeity M.A., Asfour M.M., 2012. Response of some varieties of canola plant (Brassica napus L.) cultivated in a newly reclaimed desert to plant growth promoting rhizobacteria and mineral nitrogen fertilizer. Annals of Agricultural Sciences. 57(2):129-136. Eyupoglu F., Kurucu N., Talaz S., 1996. The

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Impact of Artisanal Gold Mining on Human Health and the Environment in the Batouri Gold District, East Cameroon

References Asaah, V. (2010). Lode gold mineralization in the neoproterozoic granitoids of Batouri, southeastern Cameroon. Doctoral Thesis. Cameroon: Technical University of Clausthal, Clausthal Zellerfield, Germany. Retrieved from http://www.gbv.de/dms/clausthal/E_DISS/2010/db109832.pdf. Accessed 10/05/2012 Bernd, D., Jennifer, H., & Manfred, W. (2010). An Occupational Safety Health System For Small Scale Mines in Rwanda. . Rwanda : Projekt-Consult Gmbh . Borralho, C. (2013, August 2). Gold mining affects

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