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Optimization of Plant Species and Chelating Agents in Phytoextraction of Gold from Small-Scale Gold Mine Tailings


Affiliations
1 IRC-MEDMIND, Brawijaya University, Jalan Veteran No. 1, 65145, Malang, Indonesia
2 Wisnuwardhana University, Jalan Danau Setani No. 99, Malang 65139, Indonesia
 

The disposal of small-scale gold mine tailings into agricultural land has caused a decline in crop production in the District of Sekotong, Lombok Regency of Indonesia. One of the technologies that can be developed for remediation of soil contaminated by small-scale gold mine tailings is phytoextraction. This study was conducted in two steps. The first step was aimed to study the effect of various doses of fertilizer and soil amendment on the production of biomass of two plant species studied previously, i.e. Paspalum conjugatum and Cyperus kyllingia. Each seedling of the two plant species was grown for 9 weeks on the tailing disposal dam in a 1 × 1 m plot. Treatments tested were (1) plant species (two species), and (2) dose of NPK fertilizer (50, 100, and 150 kg/ha), and (3) dose of organic matter (5, 10, and 15 t/ha). The second step was to study the effect of the type and dose of chelating agents on the best plant species resulted from the first step of this study. The treatments tested consisted of three types of chelating agent (ammonium thiosulphate, sodium thiosulphate and sodium cyanide) and three doses of each chelating agent (1, 1.5, 2 g/kg). At the time of harvest (9 weeks), shoot and ischolar_main of each plant were separated for the analysis of Au accumulation. The results showed that type of plant, dose of organic matter, and optimal applied fertilizer that generated the highest growth and biomass production of the accumulator plants was a combination of P. conjugatum, 10 kg NPK fertilizer/ha, and 10 t organic matter/ha. The type and dose of chelating agents applied to the combined treatment affected Au accumulation. The best combination of type and dose of chelating agent was 2 g of ammonium thiosulphate /ha. Overall, the combination of plant species, fertilizer dose, organic matter dose, type of chelating agent, and dose of chelating agent was P. conjugatum with 100 kg NPK fertilizer/ha, 10 t organic matter/ha and 2 g ammonium thiosulphate/kg.

Keywords

Cyperus kyllingia, Gold Mine Tailings, Paspalum conjugatum, Phytoextraction.
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  • Anderson, C., Brooks, R.R., Stewart, R.B. and Simcock, R. 1999. Gold uptake by plants. Gold Bull., 32: 48-51.

  • Anderson, C., Moreno, F. and Meech, J. 2005. A field demonstration of gold phytoextraction technology. Miner. Eng., 18: 385-392.

  • Baker, A.J.M. and Brooks, R.R. 1989. Terrestrial higher plants which hyperaccumulate metal elements- a review of their distribution, ecology and phytochemistry. Biorecovery, 1: 81-126.

  • Baker, A.J.M., McGrath, S.P., Reeves, R.D. and Smith, J.A.C. 2000. Metal hyperaccumulator plants: A review of the ecology and physiology of a biological resource for phytoremediation of metal polluted soils. In: Phytoremediation of Contaminated Soil and Water, N. Terry, and G. S.

  • Banuelos, (eds.), CRC Press, Boca Raton, 85-107.

  • Boyle, D.R. and Smith, C.N. 1994. Mobilization of mercury from a Gossan tailings pile, Murray Brook precious metal vat leaching operation, New Brunswick, Canada, International Land Reclamation and Mine Drainage Conference and the Third International Conference on the Abatement of Acidic Drainage, Pittsburgh, PA, April 24-29.

  • Brooks, R.R., Chambers, M.F. and Nicks, L.J. 1998. Phytomining. Trends Plant Sci., 3: 359-362.

  • Habashi, F. 1999. Textbook of Hydrometallurgy. Quebec City, Canada.

  • Handayanto, E., Muddarisna, N. and Krisnayanti, B.D. 2014. Induced phytoextraction of mercury and gold from cyanidation tailings of smallscale gold mining area of West Lombok, Indonesia. Adv. Environ. Biol., 8(5): 1277-1284.

  • Krisnayanti, B.D., Anderson, C.W.N., Utomo, W.H., Feng, X., Handayanto, E., Muddarisna, N., Ikram, H. and Khususiah 2012. Assessment of environmental mercury discharge at a four-year-old artisanal gold mining area on Lombok Island, Indonesia. J. Environ. Monitor., 14: 2598-2607.

  • Mardsen, J. and House, I. 1992. The Chemistry of Gold Extraction. West Sussex, England.

  • Moreno, F.N., Anderson, C.W.N., Stewart, R.B., Robinson, B.H., Nomura, R., Ghomshei, M. and Meech, J.A. 2005. Effect of thioligands on plantHg accumulation and volatilisation from mercury-contaminated mine tailings. Plant Soil, 275: 233-246.

  • Muddarisna, N., Krisnayanti, B.D., Utami, S.R. and Handayanto, E. 2013. Phytoremediation of mercury-contaminated soil using three wild plant species and its effect on maize growth. App. Ecol. Environ. Sci., 1(3): 27-32.

  • Nedelkoska, T.V. and Doran, P.M. 2000. Characteristics of heavy metal uptake by plant species with potential for phytoremediation and phytomining. Miner. Eng., 13: 549-561.

  • Raskin, I., Kumar, P.B.A.N., Dushenkov, V. and Salt, D.E. 1994. Bioconcentration of heavy metals by plants. Curr. Opin. Biotech., 5: 285-290.

  • Sheoran, V., Sheoran, A.S. and Poonia, P. 2013. Phytomining : a review. J. Geochem. Explor., 128: 42-50.

  • Sparrow, G.J. and Woodcock, J.T. 1995. Cyanide and other lixiviant leaching systems for gold with some practical applications. Miner. Process. Extr. Metall. Rev., 14: 193-247.

  • Tangahu, B.V., Abdullah, S.R.S., Idris, H.B.M., Anuar, N. and Mukhlisin, M. 2011. Review on heavy metal (As, Pb and Hg) uptake by plants thorugh phytoremediation. Int. J. Chem. Eng., 31: 20-26.

  • Thangavel, P. and Subhuram, C.V. 2004. Phytoextraction-role of hyper accumulators in metal contaminated soils. Proc. Indian Nat. Sci. Acad. Part B, 70: 109-130.

  • Wilson-Corral, V., Anderson, C., Rodriguez-Lopez, M., Arenas-Vargas, M. and Lopez-Perez, J. 2011. Phytoextraction of gold and copper from mine tailings with Helianthus annuus L. and Kalanchoe serrata L. Miner. Eng., 24: 1488-1494.

  • Wolfe, A.K. and Bjornstad, D.J. 2002. Why would anyone object? An exploration of social aspect of phytoremediation acceptability. Crit. Rev. Plant Sci., 21: 429-438.

  • Yoon, J., Cao, X. and Zhou, O. 2006. Accumulation of Pb, Cu, and Zn in native plants growing on a contaminated Florida site. Sci. Total Environ., 368: 456-464.


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  • Optimization of Plant Species and Chelating Agents in Phytoextraction of Gold from Small-Scale Gold Mine Tailings

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Authors

Eko Handayanto
IRC-MEDMIND, Brawijaya University, Jalan Veteran No. 1, 65145, Malang, Indonesia
Yulia Nuraini
IRC-MEDMIND, Brawijaya University, Jalan Veteran No. 1, 65145, Malang, Indonesia
Nurul Muddarisna
Wisnuwardhana University, Jalan Danau Setani No. 99, Malang 65139, Indonesia

Abstract


The disposal of small-scale gold mine tailings into agricultural land has caused a decline in crop production in the District of Sekotong, Lombok Regency of Indonesia. One of the technologies that can be developed for remediation of soil contaminated by small-scale gold mine tailings is phytoextraction. This study was conducted in two steps. The first step was aimed to study the effect of various doses of fertilizer and soil amendment on the production of biomass of two plant species studied previously, i.e. Paspalum conjugatum and Cyperus kyllingia. Each seedling of the two plant species was grown for 9 weeks on the tailing disposal dam in a 1 × 1 m plot. Treatments tested were (1) plant species (two species), and (2) dose of NPK fertilizer (50, 100, and 150 kg/ha), and (3) dose of organic matter (5, 10, and 15 t/ha). The second step was to study the effect of the type and dose of chelating agents on the best plant species resulted from the first step of this study. The treatments tested consisted of three types of chelating agent (ammonium thiosulphate, sodium thiosulphate and sodium cyanide) and three doses of each chelating agent (1, 1.5, 2 g/kg). At the time of harvest (9 weeks), shoot and ischolar_main of each plant were separated for the analysis of Au accumulation. The results showed that type of plant, dose of organic matter, and optimal applied fertilizer that generated the highest growth and biomass production of the accumulator plants was a combination of P. conjugatum, 10 kg NPK fertilizer/ha, and 10 t organic matter/ha. The type and dose of chelating agents applied to the combined treatment affected Au accumulation. The best combination of type and dose of chelating agent was 2 g of ammonium thiosulphate /ha. Overall, the combination of plant species, fertilizer dose, organic matter dose, type of chelating agent, and dose of chelating agent was P. conjugatum with 100 kg NPK fertilizer/ha, 10 t organic matter/ha and 2 g ammonium thiosulphate/kg.

Keywords


Cyperus kyllingia, Gold Mine Tailings, Paspalum conjugatum, Phytoextraction.

References