Water Samples from Carnoules Mine in Southern France

Place of investigation Pb - ZnCarnoulès mine is located in the southern part of France and produces 2 million tons of solid waste including 0.7% Pb, 10% Fe, 0.2% As stored behind the dam. Aquifers are made from natural spring water buried beneath the tailings, not vertical penetration of rainwater from the tailings (Koffi et al., 2003). Groundwater, although it depends on the season and location, is located 1 to 10 meters below the surface of the stock of the tailings. The average value is about 15 ° C, except that the temperature is nearly constant, and the physicochemical parameters of the groundwater vary with hydrological conditions (Casiot et al., 2003b).

Mine water chemistry: Good, bad, and ugly: landmines drain water and discard many times. They gathered and processed large amounts of water samples from different mines. They found that the drained water is sometimes useful, but in most cases it was ugly (Banks, 1997). Trace Element Emission Factor in Coal Combustion Accurately understanding factors related to research mobilization to increase migration of trace elements in the environment, particularly in the atmosphere, especially the concentration mechanism of trace elements in particulate matter, It is essential for the study of impact assessment. In this study, an analytical method to calculate the emission factor of trace elements was proposed in consideration of concentration of trace elements (Cernuschi, 1987).

Table 3 shows the concentrations of trace elements of interest obtained from F - AAS analysis. From the table, copper is a trace element, which shows that it is contained not only in the wastewater sample but also in the captured water sample. The latter may be due to the high residual level of this element in the former copper ore environment. The Pd content in the water sample is below the detection limit of the present method. Duran et al. (2007) Use of a column packed with Amberlite XAD-2010 resin as solid phase extractant for preconcentration of Mn (II), Co (II), Ni (II), Cu (II), Cd (II) and Pb Ions were determined by flame atomic absorption spectrometry (FAAS) based on complex formation with (II) diethyldithiocarbamate (Na - DDTC). The metal complex adsorbed on the resin was eluted with 1 mol of L -1 HNO 3 in acetone.

Sampling Results Thirty-three samples were analyzed (see also Table 1, Supplementary Figure S1). These samples belong to four different ecosystems in central and southern Tunisia, with salinity ranging from 2.2% to 37%, with different physical properties (salt crystals, high salt water, sediment deposition Things, biofilm samples). . Several samples produced relatively few sequences, but the calculated coverage rate for all samples was always> 92% (average, 96.8%) (Table 1).

Pattern and determinants of diversity patterns of halophilic archaea (a kind of Salmonella) in Tunisia's endogenous salt lake and Sebkhet system