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Efektifitas Metode Amalgamasi dan Metode Flotasi pada Proses Pengolahan Emas di Wilayah Pertambangan Rakyat (WPR)
Yossa Hutajulu
; Lisa Virgiyanti
; Wisnu Rijati
; Fahrul Indrajaya
; Yustinus Hendra Wiryanto
Jurnal Riset Rumpun Ilmu Teknik
Vol 5
, No 2
(2026)
The amalgamation and flotation methods are widely used by miners because the methods are simple, fast and easy. The purpose of this study was aims to test the effectiveness of gold recovery using the amalgamation and flotation methods in conventional gold processing. The research methods used were observation and testing using the amalgamation and flotation methods in conventional gold processing. The effectiveness analysis was carried out by calculating the percentage of gold produced in the am...
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Identifikasi Kandungan Merkuri (Hg) dan Tingkat Keasaman (pH) pada Sungai Takaras Terdampak Aktifitas Pertambangan Emas di Kecamatan Rakumpit
Lisa Virgiyanti
; Amru Ash Shodaq
; Fahrul Indrajaya
; Neny Fidayanti
; Neny Sukmawatie
Jurnal Riset Rumpun Ilmu Teknik
Vol 5
, No 2
(2026)
Takaras River is a river basin that is vulnerable to pollution, particularly from the mercury usage in small-scale gold mining. This study aims to identify water quality based on mercury (Hg)and pH levels in the Takaras River. Samples were taken at two locations using a purposive sampling method. Results showed indications of mercury use on former gold mining land around the Takaras River altought the mercury content level was below 0.075 µg/L or 0.00075 mg/L in sample 1 and 2. Based on the test...
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