Browsing by Author "Escudero, Paula"
Now showing items 1-6 of 6
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Schalscha B., Eduardo; Escudero, Paula; Salgado, P.; Ahumada Torres, Aída Inés de Lourdes (MARCEL DEKKER INC, 1999)Soil samples from a field irrigated with untreated industrial and municipal wastewater for several decades and from a field not receiving wastewater (control) were analyzed for total copper (Cu) and zinc (Zn) and for the ...
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Schalscha B., Eduardo; Escudero, Paula; Ahumada Torres, Aída Inés de Lourdes (IST CHIMICA AGRARIA, UNIV PISA VIA S MICHELE DEGLI SCALZI, 1999-05)The content and the chemical forms of chromium, copper, nickel and zinc in allophanic and montmorillonitic soils, one of them irrigated exclusively with untreated sewage waters, were studied. To gain information about the ...
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Schalscha B., Eduardo; Escudero, Paula; Ahumada Torres, Aída Inés de Lourdes (Universita degli Studi di Pisa, Istituto di Chimica Agraria, 1999)La movilidad y disponibilidad de micro elementos o trazas de metales pesados es una función de su contenido en el substrato y está determinada principalmente por las formas químicas en que se presente en aquel (KABATAPENDIAS, ...
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Ahumada Torres, Aída Inés de Lourdes; Mendoza, Jorge; Escudero, Paula; Ascar Estay, María Loreto (MARCEL DEKKER INC, 2001)Some organic acids of low molecular weight, generated through breakdown of giant wastes or root exudation, increase the solubilization of heavy metals, such as cadmium (Cd) and copper (Cu) through complexation reactions ...
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Ahumada Torres, Aída Inés de Lourdes; Escudero, Paula; Ascar Estay, María Loreto; Mendoza, Jorge; Richter Duk, Pablo (MARCEL DEKKER INC, 2004-06)Copper (Cu) mining activities are very important in central Chile. The present study consists in determining the distribution and availability of copper, arsenic (As), and lead (Pb) in soils near a smelting facility, in ...
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Ahumada Torres, Aída Inés de Lourdes; Escudero, Paula; Carrasco Rimassa, María Adriana; Castillo, Gabriela; Ascar Estay, María Loreto; Fuentes Pérez, Edwar (ROYAL SOC CHEMISTRY, 2004)In Chile, the increasing number of plants for the treatment of wastewater has brought about an increase in the generation of sludge. One way of sludge disposal is its application on land; this, however involves some problems, ...