Distribution of Chromium Species and Physico-Chemical Analysis of Various Industrial Effluents in Hyderabad and Jamshoro, Pakistan

Authors : Muhammah KSHİF CHANNA, Jameel BAİG, Khalıl AKHTAR, Mirza JUNAİD, Tasneem Gul KAZİ, Hassan Imran AFRİDİ, Shakoor AHMED SOLANGİ, Saima PERVEEN, Bibi SARA

Pages : 1-10

Doi:10.18596/jotcsa.1107392

View : 18 | Download : 7

Publication Date : 2023-02-28

Article Type : Research Paper

Abstract :This research aimed to quantify the speciation of chromium in different industrial effluent samples of Hyderabad and Jamshoro, Pakistan. The hexavalent chromium insert ignore into journalissuearticles values(Crinsert ignore into journalissuearticles values(VI);); was determined by microsample injection system flame atomic absorption spectroscopy insert ignore into journalissuearticles values(MIS-FAAS);. The total chromium was measured by MIS-FAAS after the oxidation of trivalent chromium insert ignore into journalissuearticles values(Crinsert ignore into journalissuearticles values(III);); to hexavalent chromium insert ignore into journalissuearticles values(Crinsert ignore into journalissuearticles values(VI);); by Ceinsert ignore into journalissuearticles values(SO4);2 in an acidic medium insert ignore into journalissuearticles values(0.07 M H2SO4);. The content of Crinsert ignore into journalissuearticles values(III); was measured by the difference method insert ignore into journalissuearticles values(total chromium – hexavalent chromium);. In the effluent samples of textile and fabrics industries, the total Cr was observed 400 to 1600 times higher than the US-EPA and WHO regulatory limit insert ignore into journalissuearticles values(0.10 mg/L); in the industrial discharge. In the effluent of food and plastic industries, the Crinsert ignore into journalissuearticles values(VI); was found to be high as compared to the Crinsert ignore into journalissuearticles values(III);, and the Crinsert ignore into journalissuearticles values(III); was observed high in the effluent samples of chemical as well as textile and fabrics industries. The Crinsert ignore into journalissuearticles values(VI); was higher than the US-EPA and WHO regulatory limit insert ignore into journalissuearticles values(0.05 mg/L); in the effluent samples of all selected industries, but the Crinsert ignore into journalissuearticles values(III); was within the US-EPA and WHO regulatory limit insert ignore into journalissuearticles values(170 mg/L); in the industrial discharges.
Keywords : Chromium, Solid phase extraction, Micro sample injection system, Flame atomic absorption, Industrial effluent