scholarly journals Identification of the Potential of Acid Rock Drainage in the Tin Mine on Bangka Island

PROMINE ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 56-60
Author(s):  
Delita Ega Andini ◽  
Fajar Indah Puspita Sari
Keyword(s):  
Environmental Pollution ◽  
Metal Content ◽  
Acid Rock Drainage ◽  
Acidic Water ◽  
Acid Rock ◽  
Mining Areas ◽  
The World ◽  
Volcanic Processes ◽  
Granite Rocks ◽  
Potential Acidity

Bangka Belitung is one of the tin-producing areas in the world which is characterized by the large number of granite rocks in the area as the rock carrying cassiterite minerals. Granite rocks found on Bangka Island are rocks formed due to magma activity from acidic volcanic processes. The availability of acidic water is possible due to the presence of acid-carrying minerals from granite which causes acid rock drainage or acid rock water which generally occurs in mining areas, ex-mining and exploration in tin mines. Before making efforts to prevent environmental pollution, identification is needed regarding the potential acidity of the rock so that the pH and dissolved metal content that endangers survival can be prevented to a minimum.

Small-scale field evaluation of geochemical blending of waste rock to mitigate acid rock drainage potential

2021 ◽  
pp. geochem2021-066
Author(s):  
S.J. Day
Keyword(s):  
Acid Rock Drainage ◽  
Field Evaluation ◽  
Waste Rock ◽  
Small Scale ◽  
Proof Of Concept ◽  
Acidic Water ◽  
Acid Rock ◽  
Acid Generation ◽  
Acidic Waters ◽  
Critical Consideration

Blending of potentially acid generating (PAG) waste rock with non-PAG waste rock to create a rock mixture which performs as non-PAG is a possible approach to permanent prevention of acid rock drainage (ARD) for PAG waste rock. In 2012, a field weathering study using 300 kg samples was implemented at Teck Coal's Quintette Project located in northeastern British Columbia, Canada to test the prevention of acid generation in the PAG waste rock by dissolved carbonate leached from overlying non-PAG waste rock and direct neutralization of acidic water from PAG waste rock by contact with non-PAG waste rock.After eight years of monitoring the experiments, the layered non-PAG on PAG barrels provided proof-of-concept that as the thickness of the PAG layer increases relative to the thickness of the non-PAG layers, acidic waters are more likely to be produced. The PAG on non-PAG layering has resulted in non-acidic water and no indications of metal leaching despite accelerated oxidation in the PAG layer shown by sulphate loadings. The study has demonstrated that the scale of heterogeneity of PAG and non-PAG materials is a critical consideration for providing certainty that rock blends designed to be non-PAG will perform as non-PAG in perpetuity. This is contrary to the standard paradigm in which an excess of acid-consuming minerals is often considered sufficient alone to ensure ARD is not produced.

LINKING THE WORLD TO ELIMINATE ACID ROCK DRAINAGE

2006 ◽  
Vol 2006 (2) ◽  
pp. 623-629 ◽  
Author(s):  
Ross Gallinger ◽  
Anne-Marie Fleury
Keyword(s):  
Acid Rock Drainage ◽  
Acid Rock ◽  
The World

PREDICTING ACID ROCK DRAINAGE FROM A NICKEL MINE WASTE PILE AND METAL LEVELS IN SURROUNDING SOILS

2017 ◽  
Vol 16 (9) ◽  
pp. 2089-2096
Author(s):  
Artwell Kanda ◽  
George Nyamadzawo ◽  
Jephita Gotosa ◽  
Nathan Nyamutora ◽  
Willis Gwenzi
Keyword(s):  
Acid Rock Drainage ◽  
Mine Waste ◽  
Acid Rock ◽  
Metal Levels

scholarly journals The Formation of Silicate-Stabilized Passivating Layers on Pyrite for Reduced Acid Rock Drainage

2017 ◽  
Vol 51 (19) ◽  
pp. 11317-11325 ◽  
Author(s):  
Rong Fan ◽  
Michael D. Short ◽  
Sheng-Jia Zeng ◽  
Gujie Qian ◽  
Jun Li ◽  
...  
Keyword(s):  
Acid Rock Drainage ◽  
Acid Rock

Geochemical Characterization for Prediction of Acid Rock Drainage Potential in Hydrothermal Deposit

2014 ◽  
pp. 773-779
Author(s):  
Rudy Sayoga Gautama ◽  
Ginting Jalu Kusuma ◽  
Dyah Firgiani ◽  
Salmawati Mustakar ◽  
Prasetyaningtyas Ekarini
Keyword(s):  
Acid Rock Drainage ◽  
Hydrothermal Deposit ◽  
Acid Rock ◽  
Geochemical Characterization

Environmental risk assessment of acid rock drainage under uncertainty: The probability bounds and PHREEQC approach

2016 ◽  
Vol 301 ◽  
pp. 187-196 ◽  
Author(s):  
Getnet D. Betrie ◽  
Rehan Sadiq ◽  
Craig Nichol ◽  
Kevin A. Morin ◽  
Solomon Tesfamariam
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Acid Rock Drainage ◽  
Acid Rock ◽  
Probability Bounds

scholarly journals The Destructive Effect of Fine Fractions of Soybean Meal in Transport Processes

2018 ◽  
Vol 1 (1) ◽  
pp. 393-398
Author(s):  
Beata Drzewieniecka
Keyword(s):  
Environmental Pollution ◽  
Soybean Meal ◽  
Transport Processes ◽  
Destructive Effect ◽  
Cargo Handling ◽  
The World ◽  
Conveyor Belts ◽  
Solid Bulk ◽  
Operational Failures ◽  
Constant Interest

Abstract Soybean meal is one of the most popular components of compound feed. The rise of its demand in the world causes a constant interest in this cargo and to conduct research in different directions. This is related to its inherent properties, and to the continuous changes that occur in it. Soybean meal is a solid bulk cargo. Loose soybean meal, apart from larger particles, also contains fine and dusty/powdery fractions, which create the risk of explosion and environmental pollution. The problem of protecting the environment against dusting of fine fractions of soybean meal is very important in the cargo handling processes. An additional aspect is the destructive effect of powdery fractions during these processes. The results of the research on the degrading effect of fine fractions of soybean meal and its compounds on the means of transshipments were presented. Due to the interaction of esters and other compounds contained in the soybean meal, the research has the implications for the changes in the properties of the rubber elements of the elevator conveyor. The effect of these changes may be the reduced durability of the conveyor belts and the associated risks such as operational failures.

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