期刊名称：Revista Internacional de Contaminación Ambiental
印刷版ISSN：0188-4999
出版年度：1998
卷号：14
期号：2
页码：101-110
语种：Spanish
出版社：Centro de Ciencias de la Atmósfera
摘要：The purpose of this paper was to measure the heavy metals leaching etliciency from dangerous solid wastes using thennostatted columns; wastes which, due to their volume and toxicity are a serious problem to be solved. This work includes a diagram of a pilot plant to leach heavy metals, cost estimation is included. Process and device were patented in th,e U.S,A and Mexico. For this sludy tour coupled thermostatted columns were used The wastes were finely ground and suspended in water until a pulp was obtained. l0 to 40 g of mineral acid or sodium hydroxide were added to reach pH values 01'2,5,7 and 10. 4 to 10 g L" of sodium bisulphite and 0.3 lo 0,5 g orsodium dodecyl sulfate were also added to the pulpo In some cases this method can remove 100% 01' the heavy metals conten!. To study the heavy metals removal efficiency, coupled plasma atomic emission spectrometry (ICP-AES) was utilized. The metallic alloys in the samples were studied by X-ray diffraction.
其他摘要：The purpose of this paper was to measure the heavy metals leaching etliciency from dangerous solid wastes using thennostatted columns; wastes which, due to their volume and toxicity are a serious problem to be solved. This work includes a diagram of a pilot plant to leach heavy metals, cost estimation is included. Process and device were patented in th,e U.S,A and Mexico. For this sludy tour coupled thermostatted columns were used The wastes were finely ground and suspended in water until a pulp was obtained. l0 to 40 g of mineral acid or sodium hydroxide were added to reach pH values 01'2,5,7 and 10. 4 to 10 g L" of sodium bisulphite and 0.3 lo 0,5 g orsodium dodecyl sulfate were also added to the pulpo In some cases this method can remove 100% 01' the heavy metals conten!. To study the heavy metals removal efficiency, coupled plasma atomic emission spectrometry (ICP-AES) was utilized. The metallic alloys in the samples were studied by X-ray diffraction.
关键词：lixiviación de metales pesados; residuos industriales peligrosos; columna termostatizada
