Vetiver Grass As Phytoremediation For Mine Tailing On Tropical Residual Soil At Pongkor Mountain, West Java, Indonesia

Rinaldo Siagian, Muhamad Maryudi, Verilla Purba

Abstract


Tailing is residual material of valuable mineral extraction in ores processes, usually dump into residual soils which products of the intensive in-situ weathering of igneous, sedimentary and metamorphic rocks, and they include the group of iron-rich materials, usually described as laterites or lateritic soils which are very common in tropical areas. This research conducted by using method colecting data from soil and tailing characteristic by laboratorium scale and combine with previous research before. Generally, mining companies, especially gold mining in Pongkor Mountain, West Java is using NaCN compound in extraction processes. It is also appropriate by the geological characteristics in West Java that can produce residual soils. If the cyanide and the other heavy metal contents of tailings on Tropical Residual Soil produced exceeding the specified quantity standard, it would potentially damage the environment. This study is aimed to analyze the effectiveness of C. zizanioides (L.) or known as Vetiver Grass to decrease the concentration of the heavy metals (Cd and Cu) in residual soils as the contaminants from the tailings. The results indicated that the concentration of heavy metal waste (Cd and Cu) was decreasing along with the time exposure during the observation period. Using C. zizanioides (L.) effectively indicated removes metals Cd and Cu within 4 weeks with average removal efficiency are 37.64% (Cd1), 48.46% (Cd2.5) and 48.84% (Cd5) and 32.55% (Cu2.5), 54.68% (Cu5), and 52.59% (Cu7.5). This grass is also very easy to cultivate, so from the economic side will be very effective as phytoremediation. So it can be concluded the use of Vertiver Grass (C. zizanioides (L.) is very suitable to be done on residual soil in west java and can be used as role model for other regions that have the same residual soil characteristic in Indonesia.


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References


Aryani Desy 2015 Pemanfaatan Rumput Vetiver (Chrysopogon zizanioides, L.) dalam Proses Remediasi Logam Berat Kadmium (Cd) dan Tembaga (Cu). Tesis Magister, IPB. Bandung.

Aschuri Ir. Imam, et all 2013 Characteristics of Some Tropical Residual Soils on West Java. Bandung. Itenas Library

Meeinkuirt W et all 2013 Phytostabilization Potential of Pb Mine Tailings by Two Grass Species, Thysanolaena maxima and Vetiveria zizanioides Water Air Soil Pollut. DOI 10.1007/s11270-013-1750-7.

Nanakorn Weerachai and Narong Chomcalow 2015 Uses and Utilization of Vetiver. Thailand. Ministry of Natural Resouces and Environment- Assumption University

Pang J. et. all 2003 Physiological Aspects of Vetiver Grass for Rehabilitation in Abandoned Metalliferous Mine Wastes. Hongkong.Chemosphere 52 1559-1570

Purwani, J 2010 Remediasi Tanah dengan Menggunakan Tanaman Akumulator Logam Berat Akar Wangi (Vetiveria zizanioides L.). Prosiding Seminar Nasional Sumberdaya Lahan Pertanian. Bogor.

Sisilia L Indah M Y, Wibowo N J 2015 Pemanfaatan Tanaman Akar Wangi (Vetiver zizanioides (L.) Nash) untuk Penyerapan Logam Berat Tembaga (Cu). Journal UAJY. LBL01223

Sholihah, A.R.F, et. all 2014 Ecosystem Evaluation of Post Sand Mining Land in Cimalaka, Sumedang. Bandung. Bandung Institute of Technology. ISSN: 2339-076X. Volume 1 Number 2:75-78.

Truong, Paul N V 2011 The Global Impact of Vetiver Grass Technology on The Environment, Australia, Queensland Departement of Natural Resources, Resouce Sciences Centre. DOI 10.1.1.557.217


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