000			01866nam a22001577a 4500
999			_c21602 _d21602
005			20220923144525.0
008			220719b ||||| |||| 00| 0 eng d
082			_a547.04 _bD4807
100			_aSaima Rasool, _bMPhil(chemistry) _c2016-2018 _dSupervised by Dr.Muhammad Aslam
245			_aDetermination of Total Chromium Uptake by Canola (Brassica Napus L.) Plant Irrigated with Tannery Wastewater _c/Saima Rasool
260			_aLahore : _bDepartment of Chemistry, Div. S&T, University of Education, _c2018
300			_a125 p. _bxii _eCD
520			_aAn experiment was conducted to assess the growth performance of four canola varieties with effluents of three different tanneries i.e. Raji, Haji Boota and Dildar Khan of District Kasur. Shoot length, Shoot fresh and dry weight, root fresh and dry weight, chlorophyll a and b, no of seeds per plant, no of pods per plant seed weight and no of seeds per pod were investigated. The results showed that all parameters under all three effluents treatments showed reduced growth performance and also yield of the plants reduced greatly. Maximum growth reduction were found in plants treated with effluents with Haji Boota. It is also showed from the analysis of seeds that, chromium was found in the seeds which is thought to be taken up from effluent. The determination of total chromium in different streams of tannery effluents were carried out by the digestion of samples in a HNO3:H2SO4 mixture followed by KMnO4 oxidation, which resulted in the complete conversion of Cr(III) to Cr(VI). The Cr(VI) (Cr2O72-) species present in these samples were estimated by UV–visible spectrophotometry (1,5-diphenyl carbazide method). The results obtained were critically evaluated. UV–visible spectrophotometry was found to be better suited for this analysis.
650			_aChromium - Wastewater - Chemistry
942			_cTH