Abstract:
Industrialization is vital and required for the country’s growth and development. Unplanned industrial urbanization adversely affects society and human health. Effluents from widespread industrial sectors containing harmful substances like heavy metals, whose discharge directly affecting human health via food chains. Heavy metal contamination in industrial untreated effluent water transfer to food chain via irrigation of agricultural soil. Rapid and unorganized urban and industrial developments have contributed to the elevated level of heavy metals in the urban environment of the developing countries. The current research work investigates the identification, characterization, and evaluation of specific heavy metals in industrial wastewater (IWW) collected from selected agricultural field irrigating canals of IWW in Haripur Hattar (Pakistan) and an economical purification technique for the IWW has been suggested. Obtained results were compared with the tube well water irrigated samples. Heavy metals accumulation was tested through atomic absorption spectrophotometry (AAS). Analysis of water samples showed that the concentration in mg l-1 of heavy metals in Industrial wastewater follows the trend Fe(4.25)> Pb(2.98)> Zn(0.20)> Ni(0.155)> Cr(0.068)> Cu(0.01) while Tube well water has Fe(1.70)> Zn(0.09)> Cr(0.085)> Ni(0.068)> Pb(0.029)> Cu(0.009). Analysis of the soil samples irrigated with IWW followed the order of Fe (67.85) >Cu (12.99) >Pb (9.56) >Zn(8.95) >Ni (3.54) >Cr (1.736) and Fe (40.37) >Zn (0.712) >Pb (0.529) >Cr (0.323) >Cu (0.15)>Ni (0.068) irrigated with TWW. Heavy metals concentration values found in soil irrigated with IWW were higher than the soil irrigated with TWW which are higher than the normal allowable WHO limits. For the purification of IWW, Caroxymethyl Guar (CMG) and Hydoxypropyl Guar (HPG), derivatives of guar gum, innovative coagulants used for the separation of heavy metals at large scale efficiently and economically. Experiments showed significant reduction in the metals contents of IWW after processing with coagulants. The current study suggests the continuous monitoring of soil, irrigation water and agricultural products to prevent heavy metals concentration beyond allowable limits, in the food chain
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: Sixth International Conference on Sustainability in Process Industries (SPI) 19-20 Octover 2022 (Book of Abstracts), Volume: 0, Issue: 0, Year: 2022