Electroplating for chromium removal from tannery wastewater

2019 ◽  
Vol 17 (2) ◽  
pp. 607-614 ◽  
Author(s):  
G. S. da Silva ◽  
F. A. dos Santos ◽  
G. Roth ◽  
C. L. C. Frankenberg
Keyword(s):  
Tannery Wastewater ◽  
Chromium Removal

Chromium removal from tannery wastewater through activated carbon produced from Parthenium hysterophorus weed

2020 ◽  
Vol 5 (3) ◽  
pp. 184-195 ◽  
Author(s):  
Dinaol Bedada ◽  
Kenatu Angassa ◽  
Amare Tiruneh ◽  
Helmut Kloos ◽  
Jemal Fito
Keyword(s):  
Activated Carbon ◽  
Parthenium Hysterophorus ◽  
Tannery Wastewater ◽  
Chromium Removal

scholarly journals Chromium Removal from the Tannery Wastewater Using Indigenous Adsorbent

2016 ◽  
Author(s):  
Md. Abul Hashem ◽  
Md. Shahruk Nur-A-Tomal ◽  
Aziza Ahsan
Keyword(s):  
Tannery Wastewater ◽  
Chromium Removal

Chromium removal from tannery wastewater using Syzygium cumini bark adsorbent

2018 ◽  
Vol 16 (3) ◽  
pp. 1395-1404 ◽  
Author(s):  
Md. A. Hashem ◽  
Md. A. Momen ◽  
M. Hasan ◽  
Md. S. Nur-A-Tomal ◽  
Md. H. R. Sheikh
Keyword(s):  
Tannery Wastewater ◽  
Chromium Removal ◽  
Syzygium Cumini

Chromium removal from tannery wastewater using ground shrimp shells

2010 ◽  
Vol 23 (1-3) ◽  
pp. 194-198 ◽  
Author(s):  
Massimiliano Fabbricino ◽  
Rosita Gallo
Keyword(s):  
Tannery Wastewater ◽  
Chromium Removal ◽  
Shrimp Shells

scholarly journals Chromium Removal from Tannery Wastewater by Electrocoagulation: Optimization and Sludge Characterization

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1374 ◽  
Author(s):  
Nahid M. Genawi ◽  
Mohamed H. Ibrahim ◽  
Muftah H. El-Naas ◽  
Awad E. Alshaik
Keyword(s):  
Current Density ◽  
Performance Optimization ◽  
Complex Mixture ◽  
Chromium Concentration ◽  
Tannery Wastewater ◽  
Tannery Effluent ◽  
Chromium Removal ◽  
Aquatic Life ◽  
Sludge Characterization ◽  
Contour Plots

The treatment of tannery effluent is of great interest as it contains a complex mixture of pollutants, primarily chromium. The disposal of this wastewater can have adverse effects on the environment and aquatic life, which is an emerging problem for the environment. In this work, electrocoagulation is used to remove chromium from real tannery wastewater, focusing on performance optimization and sludge characterization. Electrocoagulation experiments were conducted using an electrochemical cell with iron electrodes immersed in a specific volume of tannery wastewater. Operating parameters, such as the initial chromium concentration, pH and current density as well as power consumption were evaluated to determine optimum chromium removal. The optimization was performed using Response Surface Methodology combined with central composite design. Analysis of variance (ANOVA) was used to determine the response, residual, probability, 3D surface and contour plots. The maximum chromium removal was 100% at the optimum values of 13 mA/cm2, 7 and 750 ppm for current density, pH and concentration, respectively.

scholarly journals Batch Electrocoagulation Process for Removal of Chromium from Tannery Wastewater

2021 ◽  
Vol 12 (1) ◽  
pp. 29-34
Author(s):  
Md Anik Hasan ◽  
Md Abul Hashem ◽  
Md Navid Arman ◽  
Md Abdul Momen
Keyword(s):  
Current Density ◽  
Chromium Content ◽  
Oxygen Demand ◽  
Tannery Wastewater ◽  
Zinc Hydroxide ◽  
Chromium Removal ◽  
Effective Technique ◽  
Electrocoagulation Process ◽  
Optimized Conditions ◽  
Raw Wastewater

This study was aimed to investigate the chromium removal from the tannery wastewater through electrocoagulation. The zinc and copper plates were used as electrodes for the electrocoagulation process. The effectiveness of the electrocoagulation for chromium removal efficiency was examined investigating various parameters: applied voltage, time, and current density. In batch experiment, 500 mL chromium-containing wastewater was used for electrocoagulation. Chromium content in the raw wastewater and after treatment at optimized conditions was 340.1 and 6.9 mg/L, respectively. The efficiency of chromium removal and reduction of biochemical oxygen demand (BOD) was at 98.0 and 64.6%, accordingly. Although total dissolved solids (TDS) was slightly increased. The increment of current density enhances forming zinc hydroxide which causes the damage of electrodes. Electrocoagulation is an effective technique to remove chromium from the wastewater especially from the tannery wastewater. Journal of Engineering Science 12(1), 2021, 29-34

Application of Brazilian sawdust samples for chromium removal from tannery wastewater

2009 ◽  
Vol 99 (2) ◽  
pp. 681-687 ◽  
Author(s):  
Alexandre G. S. Prado ◽  
Aline O. Moura ◽  
Rômulo D. A. Andrade ◽  
Igor C. Pescara ◽  
Valéria S. Ferreira ◽  
...  
Keyword(s):  
Tannery Wastewater ◽  
Chromium Removal
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