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Determination Of Poisonous Metals In Wastewater Collected
From Paint
Manufacturing Plant Using Laser-Induced Breakdown
Spectroscopy
Gondal, MA; Hussain, T
ELSEVIER SCIENCE BV, TALANTA; pp: 73-80; Vol: 71
King Fahd University of Petroleum & Minerals
http://www.kfupm.edu.sa
Summary
Laser-induced breakdown spectroscopy (LIBS) system was developed for
determination of toxic metals in wastewater collected from local paint manufacturing
plant. The plasma was generated by focusing a pulsed Nd:YAG laser at 1064 nm on
the solid residue from wastewater collected from paint industry. The concentration of
different elements of environmental significance like, lead, copper, chromium,
calcium, sulphur, magnesium, zinc, titanium. strontium, nickel, silicone, iron,
aluminum, barium, sodium, potassium and zirconium, in paint wastewater were 6, 3,
4, 301, 72, 200, 20. 41 4, 1, 35, 120, 133, 119, 173, 28 and 12 mg kg-(1), respectively.
The evaluation of potential and capabilities of LIBS as a rapid too] for paint industry
effluent characterization is discussed in detail. Optimal experimental conditions were
evaluated for improving the sensitivity of our LIBS system through parametric
dependence study. The laser-induced breakdown spectroscopy (LIBS) results were
compared with the results obtained using standard analytical technique such as
inductively coupled plasma emission spectroscopy (ICP). The relative accuracy of our
LIBS system for various elements as compared with ICP method is in the range of
0.03-0.6 at 2.5% error confidence. Limits of detection (LOD) of our LIBS system
were also estimated for the above mentioned elements. (c) 2006 Elsevier B.V. All
rights reserved.
References:Copyright: King Fahd University of Petroleum & Minerals;
http://www.kfupm.edu.sa
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