Chromium speciation from tannery wastewater using spectroscopic techniques DOI

Endazenaw Bizuneh Chemere,

Mapula Lucey Mavhungu,

Washington Mhike

et al.

Analytical Chemistry Letters, Journal Year: 2024, Volume and Issue: 14(5), P. 738 - 754

Published: Sept. 2, 2024

AbstractThe toxicity and reactivity of chromium (Cr) depend on its chemical form or oxidation state which directs the significance speciation. Cr(VI) is a 'Class A' carcinogen whereas Cr(III)) considered as essential for metabolism. In this work, concentrations Cr species in different sampling sites tannery effluent have been spectroscopically determined. was determined by UV-visible spectrophotometer through azo dye formation. Total FAAS while Cr(III) subtraction. The Cr(IV) concentration before after treatment found close proximity since wastewater process evidently not effective at reducing level waste stream (i.e., 3.34 mg/ L versus 3.15 mg/L). (3.15 mg/L) more than 31 times higher permissible limit WHO (0.1 Furthermore, downstream receiving river (0.59 12 upstream (0.046 (25.73 50 (0.51 mg/L), confirming that pollution from effluent.GRAPHICAL ABSTRACTDisplay full sizeKeywords: Hexavalent chromiumconcentrationpermissible limitspeciationspectrophotometer Supplementary dataTable S1-S7 Figure S1 are available supplementary data.

Language: Английский

"Sustainable Approaches for Tannery Wastewater Treatment Using a Hybrid Electrocoagulation-Electrooxidation Process" DOI

Sanjeev Kumar Meena,

Shiv Om Meena, Vikas Kumar Sangal

et al.

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(4)

Published: March 14, 2025

Language: Английский

Citations

0
Mercerized Microcrystalline Cellulose: A Game-Changer for Sustainable Chromium Removal from Tannery Effluents DOI
Alex Rodrigues Gomes, Letícia Paiva de Matos, Abner Marcelino Silva

et al.

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(5)

Published: April 4, 2025

Language: Английский

Citations

0
Extracellular Polymeric Substances from Penicillium expansum reduce Lead (II) and Chromium (VI) Concentrations and other Physicochemical Parameters in Tannery Wastewater DOI

Olukemi A. Adeniran,

Aliyu Salihu, Abdullahi Balarabe Sallau

et al.

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(5)

Published: April 9, 2025

Language: Английский

Citations

0
Chromium speciation from tannery wastewater using spectroscopic techniques DOI

Endazenaw Bizuneh Chemere,

Mapula Lucey Mavhungu,

Washington Mhike

et al.

Analytical Chemistry Letters, Journal Year: 2024, Volume and Issue: 14(5), P. 738 - 754

Published: Sept. 2, 2024

AbstractThe toxicity and reactivity of chromium (Cr) depend on its chemical form or oxidation state which directs the significance speciation. Cr(VI) is a 'Class A' carcinogen whereas Cr(III)) considered as essential for metabolism. In this work, concentrations Cr species in different sampling sites tannery effluent have been spectroscopically determined. was determined by UV-visible spectrophotometer through azo dye formation. Total FAAS while Cr(III) subtraction. The Cr(IV) concentration before after treatment found close proximity since wastewater process evidently not effective at reducing level waste stream (i.e., 3.34 mg/ L versus 3.15 mg/L). (3.15 mg/L) more than 31 times higher permissible limit WHO (0.1 Furthermore, downstream receiving river (0.59 12 upstream (0.046 (25.73 50 (0.51 mg/L), confirming that pollution from effluent.GRAPHICAL ABSTRACTDisplay full sizeKeywords: Hexavalent chromiumconcentrationpermissible limitspeciationspectrophotometer Supplementary dataTable S1-S7 Figure S1 are available supplementary data.

Language: Английский

Citations

0