Copper mining generates large quantities of waste, tailings, and acid outflows causing long-term environmental impacts and potential threats to human health. Valea Şesei is the largest tailing impoundment in Romania, created by flooding the valley (known as Valea Şesei) of the Metalliferous Mountains (a division of the Apuseni Mountains) with copper mining waste. The present study (i) estimated...

Application of municipal biosolids to mine tailings can enhance revegetation success, but may cause adverse environmental impacts, such as increased leaching of NO3- and metals to ground water. Kinetic weathering cells were used to simulate geochemical weathering to determine the effects of biosolid amendment on (i) pH of leachate and tailings, (ii) leaching of NO3- and SO4(2-), (iii) leaching ...

Limbah pertambangan adalah hasil buangan dari limbah industri yang disebut sebagai tailing. Tailing berasal batuan berharga diproses menjadi partikel halus dan kemudian dipisahkan antara mineral sisanya. Pada umumnya tailing sangat miskin bahan organik, tidak mengandung unsur hara, porositas tinggi ada aktivitas mikroorganisme. Jumlah terlalu dalam tanah dapat mengganggu perkembangan tumbuhan k...

Two fused-silica capillaries of considerably different inner diameter (75 and 10 microm) were used for the separation of a set of five standard proteins. The separations were run in acid pH (50 mM phosphate buffer, pH 2.5). Generally better separations (with minor tailing only) were obtained using a standard capillary [27 cm (20 cm effective length)x 75 microm I.D.] in comparison with a narrow ...

The thermal inactivation kinetics of Salmonella enteritidis PT4 between 49 and 60 degrees C were investigated. Using procedures designed to eliminate methodological artifacts, we found that the death kinetics deviated from the accepted model of first-order inactivation. When we used high-density stationary-phase populations and sensitive enumeration, the survivor curves at 60 degrees C were rep...

1Permanent address: P..O. Box 677, Nedlands, Western Australia, 6009. Despite major recent advances in PCRbased methodology, characterization of the extreme terminal sequences of RNA molecules may be difficult and time consuming, particularly when the 3' end is not polyadenylated.~l~ The usual approach to defining the 5' end involves cDNA synthesis using gene-specific downstream priming of the ...

Abstract: Aim The aim of the present study was to evaluate potential soluble reactive phosphorus (SRP) sorption three natural P adsorbents (Luvisol, Planosol, and Scheelite tailing) from Brazil’s semiarid region. Methods adsorption tests were done under pH 8 conditions with Lanthanum-Modified Bentonite (LMB). effect humic substances on SRP also tested. For this, Luvisol Planosol incinerated red...

Strain LSJC7, with dual resistance to arsenic and tetracycline, was isolated from an antimony tailing in China. Its 16S rRNA gene sequence has the highest similarity to that of Enterobacter cloacae subsp. dissolvens LMG 2683(T) (97.02%). Here we present the approximately 4.6-Mbp draft genome sequence of strain LSJC7.

Abstract This paper proposes the use of a hybrid method that combines Biased Random Key Genetic Algorithm (BRKGA) with local search heuristic to separate Brazilian tailing dam data into groups. The goal was identifying dams similar Fundao and B1 failed dams. groups were created by solving clustering problem BRKGA. consists in separating set objects such members each group are other. composed 42...