Assessment of Trace Total Chromium Together with Other Pollutants in the Sewages of Electroplating Industries

Abstract

One of the prominent and unavoidable cases in environmental sciences is the contamination problem. The present project is a part of a research proposal which was fundamentally defined for evaluation the type and quantity of the main pollutants present in the waste water of electroplating, dye, drug industries and repairing plants located in the eastern regions of Tehran. After sampling and pretreatment step, the samples were analyzed by flame atomic absorption spectrometry (FAAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) using external calibration graphs. The experimental results revealed that the main constituent component of the wastes involves chromium. Furthermore, the other trace metals are Pb, Cd, Fe, Cu and Mn.