Acid mine drainage
Effects of organic matter in arsenic removal during neutralization of acid mine drainage
... Acid mine drainage (AMD) is an important environmental concern as it restricts the use of receiving waters due to their toxic constituents. It is also a relevant sustainability concern for water ...
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Acidic Aqueous Solutions and Sulfate Rich Mineralogy: Raman Investigations of Rio Tinto, Spain, a Model for Acid Mine Drainage and a Potential Martian Analog
... of acid rock drainage (ARD) is often intensified by such ...and mine-waste sites have particularly high concentrations of dissolved sulfate and ...by acid mine drainage (AMD) has ...
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Surface Complexation Modelling of Arsenic and Copper Immobilization by Iron Oxide Precipitates Derived from Acid Mine Drainage
... Acid mine drainage (AMD) constitutes a serious environmental problem in mining areas due to the acidification of soils and aquatic systems, and the release of toxic ...tin mine was also ...
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Zeolitic tuffs for acid mine drainage (AMD) treatment in Ecuador: breakthrough curves for Mn2+, Cd2+, Cr3+, Zn2+ and Al3+. DOI: 10.1007/s11356-016-8177-9
... The immobilization of metal-loaded zeolites in cements shows to be a feasible altemative to this type ofwaste, at least at the cation concentrations tested and considering that XB_Ol, XB[r] ...
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Screening of polyphenolic compounds in Piper trioicum (Roxb ) extracts
... levels reported in these studies may be attributed to the procedures and standards used to express as total phenolic contents used by individual groups of investigators. Based on the report of TLC and UV, ethanol and ...
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Moving horizon strategies for state estimation of networked control systems - an application to urban drainage
... The purpose of this section is to evaluate the performance of the estimation strategy proposal. It is applied the centralized and distributed moving horizon observer to a simulation model of a real network of urban ...
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... Wieland, H. and O. Schlichting (1924). "Analysis concerning gallic acid. XX. Announcement. The breakdown of a tricarboxylic acid C13H20O6." Hoppe-Seylers Zeitschrift Fur Physiologische Chemie ...
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Tratamiento y gestión de baños ácidos de decapado
... Acrylic acid 12.3 13.9 Isobutyl alcohol 7.1 18.0 Allyl alcohol 10.2 14.3 Isobutyric acid 12.2 14.4 Allyl bromide 14.4 9.6 Isopropyl alcohol 8.2 16.0 Allyl iodide 14.0 11.7 Isopropyl bromide 14.1 9.2 ...
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A Mine Planning Tool to Facilitate Planning Under Uncertainty.
... The above approach of an NPV driven mine planning, forces the operation towards a “push” approach rather than “pull”, i.e. intrinsically presumes that the production outcomes will be feasible regardless the ...
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Biological properties of the Chilean native moss Sphagnum magellanicum
... Vanillic acid, syringic acid, c h l o r o g e n i c a c i d , g a l l i c a c i d , 3 - 4 hydroxybenzoic acid, caffeic acid, p- coumaric acid and salicylic ...vanillic acid has ...
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Transferencia de Calor Cap. 3
... Deter mine la razón estacionaria de la transferencia de calor a través de esta ventana de vidrio y la temperatura de su superficie interior para un día durante el cual el cuarto se mantiene a 20°C, en tanto que la ...
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TítuloThe Valborraz tungsten mine: Description of a potential source of arsenic pollution
... tungsten mine in Valdeorras (NW Spain). The mine worked mainly in the first half of the twentieth century, and it was definitely closed by ...the mine (including both natural soils and soils ...
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Stimulation of respiratory activity of Shigella sonnei by certain nitrogenous compounds
... The stimulatory activity of pyridine-3-suIfonic acid upon the oxidátion of glucose by S. Jomzei was not surprising since MIZUNO and NOJIMA ( 14) found that this substance was a growth accessory factor for S. ...
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Hypothalamic Ceramide Levels regulated by CPT1C mediate the Orexigenic effect of Ghrelin
... Ghrelin produces the phosphorylation of AMPK and pAMPK becomes active and phosphorylates and inactivates ACC, causing a decrease in malonyl-CoA levels, the physiological inhibitor of CPT1 enzymes. This action produces ...
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New role of antinutritional factors, phytic acid and catechin in the treatment of CCl4 intoxication
... phytic acid (PA) and catechin (CA) are well known antioxidants of natural ...sialic acid (TSA), serum ascorbic acid (AA) levels, liver tissue thiobarbituric acid reactive species (TBARS) as a ...
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(03)Acrylic-acid-process
... acrylic acid recycle stream. Additional recovery of acrylic acid and acetic acid occurs in an absorber, ...acrylic acid and acetic acid fed to ...acrylic acid is produced as the ...
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Tight control of cellulose depolymerization towards glucose in organic electrolyte solutions
... Unlike crystalline cellulose, which was almost quantita- tively hydrolyzed, the rest of the tested raw materials pro- vided a lower amount of glucose after the hydrolytic treatment. In contrast to that expected for the ...
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Real time control for urban drainage systems, a series of methodologies
... Urban drainage (UD) is affecting day life in urban areas where the amount of construction sites finds itself in a con- stant growth behavior; such behavior combined with the fact that rain episodes are also ...
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Endoscopy Ultra- Sonography –Guided Biliary Drainage in the Surgical –Endoscopy Era
... Bile leakage into the peritoneum is the major risk of EUS-HG. Several strategies are used by different authors to minimize this risk. A 6 or 7 French naso-biliary drain with mild aspiration or gravity drainage can ...
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