KARAKTERISTIK AIR ASAM TAMBANG DI LINGKUNGAN TAMBANG PIT 1 BANGKO BARAT, TANJUNG ENIM SUMATERA SELATAN SEBUAH STUDI KASUS ASAM TAMBANG

In Coal Mine Pit 1, Bangko Barat, Tanjung Enim, South Sumatera mine activity lowered the water pH in the effluent water of the mine. So the Mine Environmet Managemet of PTBA try to raise the pH to meet Kep Men Neg LH No 113 Tahun 2003. This study attempt to characterize the performance of the water treatment,which managed by acid-mine dranage management of the PTBA. Some water samples was taken in the study area, such as the passive treatment in Pit 1 Bangko Barat, rainwater pond near by, lake, mine sump, settling pond, the water treatment of acid mine drainage in the coal stockpile in Bangko Barat, the mine sump of Air Laya Mine and Air Laya Channel. The result of the study showed that in the coal stockpile the pH is around 5, closed to the pH di rainwater pond and Air Laya putih Channel (around 6), output of water treatment in Tambang Air Laya. Meanwhile thepH in the passive treatment, settling pond, mine sump Banko Barat and in Air laya Mine drainage system is 2 - 3. The source of Acid Mine Rocks is coal seam rock interval and overburden of the coal. Meanwhile the performance of water treatment in the lake, Air Laya Putih channel and coal stockpile better than in the passivetreatment, settling pond, mine sump of Air Laya MIne and pit 1 Banko barat. So PTBA Environment division should improve the process capacity of water treatment in the pit of Bangko Barat.

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MICROMORPHOLOGIC CHARACTERISTICS AND ORIGIN OF THE INTERBEDDED POROUS, SPONGE-LIKE LAYERS OF FE-RICH STROMATOLITES FROM AN ACID MINE DRAINAGE SYSTEM IN WESTERN INDIANA

10.1130/abs/2019am-337059 ◽

2019 ◽

Author(s):

Morgan Gillis ◽

◽

Lucas H. Monroe ◽

Sandra Brake ◽

Stephen T. Hasiotis

Keyword(s):

Acid Mine Drainage ◽

Mine Drainage ◽

Drainage System ◽

Acid Mine

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Effect of acid mine drainage on dissolved rare earth elements geochemistry along a fluvial–estuarine system: the Tinto-Odiel Estuary (S.W. Spain)

Hydrology Research ◽

10.2166/nh.2012.012b ◽

2012 ◽

Vol 43 (3) ◽

pp. 262-274 ◽

Cited By ~ 11

Author(s):

J. Borrego ◽

B. Carro ◽

N. López-González ◽

J. de la Rosa ◽

J. A. Grande ◽

...

Keyword(s):

Rare Earth ◽

Acid Mine Drainage ◽

Rare Earth Elements ◽

Mine Drainage ◽

Drainage System ◽

Estuarine System ◽

Mixing Zone ◽

Heavy Rare Earth ◽

Acid Mine ◽

Heavy Rare Earth Elements

The concentration of rare earth elements together with Sc, Y, and U, as well as rare earth elements fractionation patterns, in the water of an affected acid mine drainage system were investigated. Significant dissolved concentrations of the studied elements were observed in the fluvial sector of this estuary system (Sc ∼ 31 μg L−1, Y ∼ 187 μg L−1, U ∼ 41 μg L−1, Σ rare earth elements ∼621 μg L−1), with pH values below 2.7. In the mixing zone of the estuary, concentrations are lower (Sc ∼ 2.1 μg L−1; Y ∼ 16.7 μg L−1; U ∼ 4.8 μg L−1; Σ rare earth elements ∼65.3 μg L−1) and show a strong longitudinal gradient. The largest rare earth elements removal occurs in the medium-chlorinity zone and it becomes extreme for heavy rare earth elements, as observed for Sc. Samples of the mixing zone show a North American Shale normalized pattern similar to the fluvial zone water, while the samples located in the zone with pH between 6.5 and 7.7 show a depletion of light rare earth elements relative to middle rare earth elements and heavy rare earth elements, similar to that observed in samples of the marine estuary.

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