Heavy Metals Contamination In Industrial Wastewater: A Case Study of Bikaner (Rajasthan)

IJEP 43(8): 763-768 : Vol. 43 Issue. 8 (August 2023)

Divyaman Singh Rathore, Leela Kaur* and Rajaram Choyal

Maharaja Ganga Singh University, Department of Environmental Science, Bikaner, Rajasthan – 334 004, India


The purpose of the study is to investigate heavy metal contamination in industrial wastewater samples collected from four industrial sites in Bikaner city. Heavy metals selected for the study are arsenic (As), manganese (Mn), iron (Fe), cobalt (Co), lead (Pb), cadmium (Cd), copper (Cu), zinc (Zn), nickel (Ni) and chromium (Cr). Samples were collected during August and September 2019. The physico-chemical parameters of wastewater samples were analyzed using standard methods. Analysis of heavy metals was performed by inductively coupled plasma atomic emission spectroscopy. The metals ranged differently as follows: As (0.0735-0.0812 mg/L), Cd (0.0175-0.0197 mg/L), Co (0.0206-0.0233 mg/L), Cu (0.113-0.155 mg/L), Cr (0.055-0.141 mg/L), Fe (1.321-3.041 mg/L), Mn (0.167-0.205 mg/L), Ni (0.167-0.245 mg/L), Pb (0.047-0.106 mg/L) and Zn (0.213-0.365 mg/L). The concentrations of As, Cd, Cr, Fe, Ni and Pb are beyond the recommended limit while Cu, Mn and Zn are within the permissible limit given by BIS, FAO and WHO. The higher concentration of heavy metals suggests proper treatment of wastewater is required.


Heavy metals, Industrial wastewater, Physico-chemical analysis, Bikaner


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