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From X-ray diffraction studies, the presence of the following crystalline phases in the binder raw material (mining tailings) could be identified: Quartz (SiO2), Pyrite (FeS2), Calcite (CaCO3), Muscovite (K0.77Al1.93(Al0.5Si3.5)O10(OH)2) and Clinochlore ((Mg,Fe)6(Si,Al)4O10(OH)8).
El Machi, Y.

El Khoury, C.
Aouada, Biodiesel production from refined sunflower oil over Ca–Mg–Al catalysts: Effect of the composition and the thermal treatment, Renew.

Samples were designated as ELX and EVX, respectively, where EL – ettringite stored in the laboratory environment, EV – ettringite stored in the environment of saturated water vapour, X – number of days of hydration.
Turrillas, Thermal decomposition of ettringite Ca6[Al(OH)6]2(SO4)3.26H2O.

El-Din: J.
Chan，et al.

Results presented here, are similar to those obtained by Kulpa el al. [4], which identified a psychrotolerant strain of At. ferrooxidans in enriched culture of a mine drainage-impacted soils and sediments from Siberia and Sweden.

El-Raghy: J.
Novikov, A.L.

OZrP was prepared by cation exchange of natural counterions with ammonium surfactants according to the method of zhang et al [12].
El-Khouly, Y.

. %) Element Ti Al V Fe Si C N H O wt. % Bace 5.6 3.86 0.18 <0.01 0.02 0.023 <0.01 0.17 Table 2.
El Mansori: Wear Vol. 266 (2009), p. 432 [3] C.

Sutter and A.Molinari: Journal of Manufacturing Science and Engineering Vol.127 (2005), p. 245 [2] G.Sutter and N.Ranc: International Journal of Machine Tools and Manufacture Vol.47 (2007), p.1507 [3] Z.N.Farhat: Materials Science and Engineering A361 (2003), p.100 [4] T.I.El-Wardany, H.A.
Hazra, ,et al: Journal of Engineering for IndustryVol.104(1982), p.121 [8] K.Nakayama, M.Arai and T.Kanda : Annals of the CIRP Vol. 37(1) (1988 ), p.89

For example, the turbidity of raw water in the Shimen Reservoir Dam area in Northern Taiwan climbed to 120,000 NTU and 46,000 NTU during the landfall of typhoons in 2006 [4]; further, Typhoon Kalmaegi and Morak also made their landfalls in southern Taiwan on July 17, 2008 and in August 2009 respectively, and the rain concentrated its falling in the catchment area upstream from the dam, exhibiting 800mm and 2,000mm of super rainfall, which created 59,000 NTU and 70,000 NTU of turbidity at the intake area (EL. 170m) at the uppermost layer of the Nanhua Reservoir Dam.
Bohn, Menachem Elimelech, et al.: Science and technology for water purification in the coming decades [J].