Authors:
Cristea, Ionut; Dinu, Laurentiu
Cristea, Ionut; Dinu, Laurentiu
Conference: International Symposium “The Environment and the Industry”
Date: October 29-30, 2013
Location: Bucharest, Romania
Published: 2013
Volume: II
Keywords:
Mine water treatment
Heavy metals
Mine water treatment
Heavy metals
Abstract:
A method for simultaneous analysis of Fe, Mn, Al, Ca, Mg, Cd, Cr, Cu, Hg, Ni, Pb, Zn and As from mine water treatment sludge was developed using an NEX CG – Energy Dispersive X-ray Fluorescence Spectrometer. The XRF analysis results were verified with other consecrated method such AAS and ICP-MS using standardized methodologies, including pretreatment of samples. Good correlation of results between methods was achieved (usually 0.93-0.98). Minimum sample preparation (drying, sieving and prolene cup preparation) is needed, and up to 4 samples can be analyzed per hour. Usual limit of detection for analyzed elements was between 3 and 30 mg/Kg dw, with higher limits for light elements as Mg (384 mg/Kg dw) Al(162 mg/Kg dw). XRF analysis method was successfully used for analysis of some precipitates obtained from mine waters using various precipitation methods. Mine water was sourced from some closed Romanian mines.
A method for simultaneous analysis of Fe, Mn, Al, Ca, Mg, Cd, Cr, Cu, Hg, Ni, Pb, Zn and As from mine water treatment sludge was developed using an NEX CG – Energy Dispersive X-ray Fluorescence Spectrometer. The XRF analysis results were verified with other consecrated method such AAS and ICP-MS using standardized methodologies, including pretreatment of samples. Good correlation of results between methods was achieved (usually 0.93-0.98). Minimum sample preparation (drying, sieving and prolene cup preparation) is needed, and up to 4 samples can be analyzed per hour. Usual limit of detection for analyzed elements was between 3 and 30 mg/Kg dw, with higher limits for light elements as Mg (384 mg/Kg dw) Al(162 mg/Kg dw). XRF analysis method was successfully used for analysis of some precipitates obtained from mine waters using various precipitation methods. Mine water was sourced from some closed Romanian mines.