Artisanal and small-scale gold mining in Indonesia: A case study of Tobongon, East Bolaang Mongondow district, North Sulawesi province

Lusantono, Oktarian Wisnu; Hantari, Yolanda N.

doi:10.1063/5.0006812

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…It takes time to develop the technical solution to be chosen, which is the duty of all players and stakeholders. Practical solutions include multi-level stakeholder involvement, ongoing communication, training, and education [10].…”

Section: Gold Extraction In Pelangan Villagementioning

confidence: 99%

Mercury Reduction on Gold Extraction in Artisanal and Small-Scale Gold Mining. A Case Study in Pelangan Village, West Nusa Tenggara Province, Indonesia

Rahmawati

Adiansyah

Matrani

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The most common method used for gold processing in artisanal and small-scale mining is amalgamation using mercury as a gold extracting agent. Indonesia is one of the countries that ratify the Minamata Convention, meaning that Indonesia has agreed to reduce or even eliminate the use of mercury. Some methods for replacing mercury as a gold-extracting agent are cyanidation and borax. The research aims to determine whether the miners in Pelangan still use mercury in gold processing. The method of this research is observation, interviews, and literature review. The data obtained were then analyzed descriptively. The result indicates that the miners in Pelangan Village use two methods of gold processing from ore: (1) amalgamation using mercury followed by cyanidation and (2) cyanidation. Most of the miners use the cyanidation method without going through amalgamation. The main reason they do not use mercury are amalgamation method yields low gold recovery and the price of mercury is high. This indirectly shows that the miners in Pelangan Village have contributed to efforts to reduce mercury use in Indonesia.

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Section: Gold Extraction In Pelangan Villagementioning

confidence: 99%

Mercury Reduction on Gold Extraction in Artisanal and Small-Scale Gold Mining. A Case Study in Pelangan Village, West Nusa Tenggara Province, Indonesia

Rahmawati

Adiansyah

Matrani

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…They are also undergone decalcified, silicified, dolomitizes process. Several studies showed that Hg contamination in Sulawesi was related to gold mining and processing (Abbas et al, 2020;Arifin et al, 2020;Bose-O'Reilly et al, 2010a;Castilhos et al, 2006;Limbong et al, 2004;Filho et al, 2004;IPEN, 2013;Limbong et al, 2003;Lusantono and Hantari, 2020;Mallongi et al, 2014;Mallongi, 2014;Mallongi and Herawaty, 2015;Nakazawa et al, 2016). A study from Tao et al (2020) presented that there is an interaction between lithology factors and watershed to the accumulation of Hg in karst soil where local mining activities and the mechanical transport of pollutant in the watershed has a strong dependence to Hg accumulation.…”

Section: Hg and Pb Distribution In The Soilmentioning

confidence: 99%

Risk identification of Hg and Pb in soil: a case study from Pangkep Regency, Indonesia

Astuti¹,

Mallongi²,

Rauf³

2021

Soil Sci. Ann.

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Lithogenic and anthropogenic activities can increase the concentration of heavy metals in the soil and degradation of environmental quality. Pangkajene dan kepulauan (Pangkep) regency is one of the areas in South Sulawesi Province which has severe environmental pressure. Twenty two surface soils of Pangkajene dan Kepulauan (Pangkep) regency, South Sulawesi, Indonesia were collected in order to determine the contamination status and potential ecological risks. The geo-accumulation index (I geo ) and potential ecological risk index (RI) were used to evaluate the contamination and risk level. The metal content in soils was determined using cold vapor atomic absorption spectrophotometer (CV-AAS) for Hg and fl ame atomic absorption spectrophotometer (F-AAS) for Pb. The results showed that the concentration of Hg and Pb ranged from 20.81-223.47 mg kg -1 and 25.98-108.68 mg kg -1 respectively. Pb concentration in studied soil was below the quality standard for soil, whereas the Hg concentration was exceeded the soil quality standard. Agriculture fi eld in Bungoro sub-district has the highest Hg concentration. The I geo value showed that the soil in Pangkajene was extremely enriched with Hg and moderately enriched by Pb. The ecological risk index showed comprehensively the watershed area was at extreme risk level in need of effective monitoring and pollution control, and Hg is the important risk factor of Pangkajene watershed area.

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Artisanal and small-scale mining in Indonesia: Towards sustainable practices through regulatory system implementation

Lusantono

Ardian

Wijayanto³

2021

3rd International Conference on Earth Science, Mineral, and Energy

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Artisanal and small-scale gold mining in Indonesia: A case study of Tobongon, East Bolaang Mongondow district, North Sulawesi province

Cited by 4 publications

References 3 publications

Mercury Reduction on Gold Extraction in Artisanal and Small-Scale Gold Mining. A Case Study in Pelangan Village, West Nusa Tenggara Province, Indonesia

Mercury Reduction on Gold Extraction in Artisanal and Small-Scale Gold Mining. A Case Study in Pelangan Village, West Nusa Tenggara Province, Indonesia

Risk identification of Hg and Pb in soil: a case study from Pangkep Regency, Indonesia

Artisanal and small-scale mining in Indonesia: Towards sustainable practices through regulatory system implementation

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