scholarly journals SISTEM PENGOLAHAN AIR ASAM TAMBANG DARI MATERIAL WASTE DAN APLIKASI MODEL ENKAPSULASI PADA BENDUNGAN TSF DI TAMBANG EMAS MARTABE

2020 ◽  
Vol 1 (1) ◽  
pp. 771-784
Author(s):  
Latipa Henim ◽  
Steven Pearce
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Mining Industry ◽  
Waste Materials ◽  
Gold Mine ◽  
Storage Facility ◽  
Production Potential ◽  
Acid Mine ◽  
Potential Acid ◽  
Sealing Layer

ABSTRAK Indonesia adalah negara yang kaya akan sumber daya alam, baik berupa sumber daya alam pulih maupun yang tidak pulih. Industri pertambangan adalah salah satu aktivitas yang bergerak dalam  mengolah sumber daya alam yang tidak pulih yang dapat memberikan dampak positif maupun negatif baik dari sisi sosial, ekonomi maupun lingkungan. Air asam tambang adalah salah satu dampak dari industri pertambangan yang harus ditangani secara serius yang terbentuk akibat reaksi mineral sulfida (pirit) dan logam berat yang terpapar ke media air dan udara yang berasal dari batuan yang terbuka pada saat  aktivitas penambangan berlangsung. Sejak tahun 2013, tambang emas Martabe telah menerapkan manajemen air asam tambang (AAT) dalam konstruksi bendungan TSF dengan enkapsulasi sederhana yang dirancang dengan dua kategori utama batuan PAF (Potential Acid Forming) dan NAF (Non Acid Forming) sebagai bagian dari material tanggul TSF konstruksi hilir dan juga mengembangkan basis data karakteristik geokimia material waste di lokasi tambang emas Martabe. NAPP (Net Acid Production Potential) adalah metode standar industri yang digunakan untuk menentukan potensi untuk mengoksidasi dan menghasilkan bahan limbah asam, yang nantinya akan ditempatkan di bendungan TSF dengan metode enkapsulasi. Metode ini bertujuan untuk membungkus material sulfida beresiko tinggi yang sedang di tambang di Martabe dengan lapisan penyegel (sealing layer) dengan mengambil keuntungan dari iklim (curah hujan yang tinggi) dan sifat material ROM (run of mine). Konstruksi lapisan penyegelan dan penjadwalan material waste dilakukan dengan pengembangan strategi operasional pengelolaan limbah yang terperinci dan terintegrasi. Monitoring rutin dengan instrument WRSF (Waste Rock Storage Facility) untuk pengukuran oksigen dan juga dari pengukuran kualitas air menunjukkan kalau enkapsulasi material waste pada embakment TSF berhasil mencegah pembentukan air asam tambang. Kata kunci: material waste, air asam tambang, naf, paf, bendungan tailing, model enkapsulasi  ABSTRACT Indonesia is a country that is rich in natural resources, both in renewable and non-renewable. The mining industry is one of the activities that is engaged in processing non-renewable natural resources that can have positive and negative impacts both in terms of social, economic and environmental aspects. Acid mine drainage is one of the impacts of the mining industry which must be dealt with seriously which is formed due to the reaction of sulfide minerals (pyrite) and heavy metals which is exposed with water and air from rocks during mining activities.Since 2013, the Martabe gold mine has implemented mine acid drainage management (AMD) in TSF dam construction with simple encapsulation designed, with two main categories of PAF (Potential Acid Forming) and NAF (Non Acid Forming) rocks as part of construction TSF embankment material downstream and also develop the geochemical characteristics database of waste material at the Martabe gold mine site. NAPP (Net Acid Production Potential) value is an industry standard method to determine the potential to oxidize and produce acid waste materials, which will be placed in the TSF dam by encapsulation model. This method aims to wrap the high risk sulfide material in a mine at Martabe sealing layer to take advantage of both the climate (high rai fall) and material properties of run of mine (ROM). The construction of sealing layer and scheduling of waste is made possible by the development a detailed and integrated operational waste management strategy. Routine monitoring with the WRSF (Waste Rock Storage Facility) instrument for measuring oxygen and also from measurements of water quality shows that the encapsulation of waste material in TSF embankments successfully prevents the formation of acid mine drainage.  Key words: waste materials, acid mine drainage, naf, paf, tailing storage facility, encapsulation model 

scholarly journals Prediksi Laju Pembentukan Air Asam Tambang dengan Metode Column Leaching Test

2019 ◽  
Vol 23 (2) ◽  
pp. 129-135
Author(s):  
Muhammad Ramli ◽  
Nur Ilham Situru ◽  
Muhammad Thamrin
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Test Method ◽  
Leaching Test ◽  
Column Leaching ◽  
Static Test ◽  
Acid Mine ◽  
Column Leaching Test ◽  
Kinetic Test ◽  
Potential Acid

Prediction of Acid Mine Drainage Forming using Method of Column Leaching Test. One of the environmental problems in coal mining activities is the formation of acid mine drainage. Prediction of the formation of acid mine drainage is important as an effort to control environmental impacts. Acid mine water occurs with interactions between potentially acid-forming material with oxygen, bacteria and water. Objective of study is to analyze the potential for acid mine drainage forming based on material characteristics. The research method was carried out using static and kinetic tests. The static test method classifies materials according to the ability to produce clean acids with observed parameters such as paste pH, total sulfur, Acid Neutralizing Capacity (ANC), Net Acid Generation (NAG), Maximum Potential Acid (MPA), and Net Acid Producing Potential (NAPP). The Kinetic test method predicts the rate of acid-forming of a material. The kinetic test uses the Column Leaching Test Method by using material with composition designed to represent field condition. The kinetic method parameters are pH, electrical conductivity, acidity, alkalinity, sulfate content, and dissolved metal content (Fe, Mn, and Cd). Results of the static test classified the material into NAF Non-Acid Forming (NAF), Potential Acid Forming (PAF) and Uncertain (UC) material categories. The results of the Column Leaching Method classified the material into categories of potential and no potential to form acid mine water. The columns that have the potential to form acid mine drainage occur in columns with large amounts of tonnage of PAF material or those in the upper layer so that it reacts with oxygen. The columns that have no potential to produce acid mine drainage in columns with PAF material are in the middle layer or mixed with NAF material.

scholarly journals Hydrogeochemical Behavior of Reclaimed Highly Reactive Tailings, Part 1: Characterization of Reclamation Materials

Minerals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 596 ◽  
Author(s):  
Alex Kalonji-Kabambi ◽  
Bruno Bussière ◽  
Isabelle Demers
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Mine Waste ◽  
Mining Industry ◽  
Companion Paper ◽  
Mine Wastes ◽  
Acid Mine ◽  
High Concentrations ◽  
Neutralizing Potential ◽  
Sulfide Tailings

The production of solid mine wastes is an integral part of the extraction and metallurgical processing of ores. The reclamation of highly reactive mine waste, with low neutralizing potential, is still a significant challenge for the mining industry, particularly when natural soils are not available close to the site. Some solid mine wastes present interesting hydro-geotechnical properties which can be taken advantage of, particularly for being used in reclamation covers to control acid mine drainage. The main objective of this research was to evaluate the use of mining materials (i.e., tailings and waste rock) in a cover with capillary barrier effects (CCBE) to prevent acid mine drainage (AMD) from highly reactive tailings. The first part of the project reproduced in this article involves context and laboratory validation of mining materials as suitable for a CCBE, while the companion paper reports laboratory and field results of cover systems made with mining materials. The main conclusions of the Part 1 of this study were that the materials studied (low sulfide tailings and waste rocks) had the appropriate geochemical and hydrogeological properties for use as cover materials in a CCBE. Results also showed that the cover mining materials are not acid-generating and that the LaRonde tailings are highly reactive with pH close to 2, with high concentrations of metals and sulfates.

Assessment of acid mine drainage formation using geochemical and static tests in Mutki (Bitlis, SE Turkey) mineralization area

2020 ◽  
Vol 29 (7) ◽  
pp. 1189-1210
Author(s):  
Mehmet Ali GÜCER ◽  
Selçuk ALEMDAĞ ◽  
Enver AKARYALI
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
High Mobility ◽  
Leaching Tests ◽  
Potentially Toxic Metals ◽  
Production Potential ◽  
Short Term ◽  
Static Tests ◽  
Acid Mine ◽  
Se Turkey

In this study, geochemical analyses, as well as short-term contact leaching and acid-base accounting tests, were carried out to determine the occurrence of acid mine drainage (AMD) by static tests in the ore stockpile areas at the Mutki Cu-Fe-Cr deposit (Bitlis, SE Turkey). According to the short-term contact leaching tests, the high enrichment in trace element concentrations in ore-bearing samples, especially in potentially toxic metals such as Cr, Cu, Mn, and Zn, were directly related to sulphide and oxide mineralizations. The pH (3.27–4.05) values of water samples, together with the classification of the intracontinental water resources, indicated that the water quality is the fourth class. Leaching tests, paste pH (3.42–4.46) and sulphide-sulphur (3.9–13.4 wt%) values also suggested that there was AMD production potential in the mineralization area. The AMD production potential was supported by the high mobility of several elements, such as Fe, Mg, Cr, As, Cu, S, and Zn. In ore samples, net neutralization potential (NNP) and net potential ratio (NPR) values were less than –20 kg CaCO3/t and 1, respectively. The basalts forming the basement rock of the stockpile area were characterized by permeable to slightly permeable properties that potentially increase the contamination risk of the groundwater due to seepage in the stockpile area. In order to prevent seepage in the stock area, geomembrane (synthetic waterproofing covers) should be laid at the base to ensure impermeability. The improvements planned in the stock area were modeled by the finite element method and seepage discharges at a depth of 5 m were determined as 1.34 × 10–17m3/s. Thanks to these planned applications, surface and groundwater pollution can be efficiently prevented.

Prokaryotic and eukaryotic community structure affected by the presence of an acid mine drainage from an abandoned gold mine

Extremophiles ◽  
2018 ◽  
Vol 22 (5) ◽  
pp. 699-711 ◽  
Author(s):  
José O. Bonilla ◽  
Daniel G. Kurth ◽  
Fabricio D. Cid ◽  
José H. Ulacco ◽  
Raúl A. Gil ◽  
...  
Keyword(s):  
Community Structure ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Gold Mine ◽  
Eukaryotic Community ◽  
Acid Mine

Use of Waste Materials for Control of Acid Mine Drainage and Subsidence

2003 ◽  
Vol 129 (10) ◽  
pp. 910-915 ◽  
Author(s):  
Hema J. Siriwardane ◽  
R. S. S. Kannan ◽  
Paul F. Ziemkiewicz
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Waste Materials ◽  
Acid Mine

Evaluation of waste materials for acid mine drainage remediation

Fuel ◽  
2017 ◽  
Vol 188 ◽  
pp. 294-309 ◽  
Author(s):  
Stephanie N. Jones ◽  
Bora Cetin
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Waste Materials ◽  
Acid Mine

scholarly journals Review on Treatment of Acid Mine Drainage with Waste Materials: A Novel Approach

2018 ◽  
Vol 20 (3) ◽  
pp. 512-528 ◽  
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Organic Waste ◽  
Mine Drainage ◽  
Metal Removal ◽  
Metallurgical Slag ◽  
Waste Materials ◽  
Maintenance Cost ◽  
Cement Kiln ◽  
Acid Mine

<p>The present study systematically and comprehensively reviewed different aspects of treating Acid Mine Drainage (AMD) with active treatment and waste materials. The work also critically reviews the status and the factors associated with the treatment process. Although, conventional active methods are very efficient but they are mainly associated with costly material as well as high maintenance cost which enhances the cost of entire treatment system. Waste materials such as fly ash, metallurgical slag, zero valent iron (ZVI), cement kiln dust (CKD), organic waste such as peat humic agent (PHA) and rice husk can be efficiently used for the treatment of AMD. However, efficiency of different waste material varied from each other due to the variation in their physical and chemical characteristics. The results from the investigation showed that fly ash, metallurgical slag and CKD raise the pH of acidic solution more, in comparison to ZVI and organic waste, due to their richness in lime content. Furthermore, fly ash can be efficiently converted and utilized in its other derivative such as chemically modified fly ash and zeolite. Efficiency of ZVI is hindered by the presence of higher concentration of total dissolved solids. PHA can treat AMD that is mild acidic in nature. Besides, long retention time is required for the removal of heavy metals and sulfur with organic waste and sulfate reducing bacteria (SRB). The study also potentially reviewed that metal removal from AMD varied due to composition of AMD and the characteristics of waste materials. However, waste materials demand more attention for its practical applicability in field conditions due to its richness, higher possibility for recycling and reuse, low installation cost and harmless nature towards the environment.</p>

scholarly journals Mine Water Treatment in Hongai Coal Mines

2018 ◽  
Vol 35 ◽  
pp. 01007 ◽  
Author(s):  
Phuong Thao Dang ◽  
Vu Chi Dang
Keyword(s):  
Acid Mine Drainage ◽  
Iron Sulfide ◽  
Mine Drainage ◽  
Coal Mines ◽  
Mining Industry ◽  
Coal Seams ◽  
Acid Mine ◽  
Iron Sulfide Minerals ◽  
Drainage Problem ◽  
Acid Mine Drainage Treatment

Acid mine drainage (AMD) is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine drainage treatment in Hongai coal mines. In addition, selection and criteria for the design of the treatment systems have been presented.

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