Sewage sludge-based activated carbon: its application for hexavalent chromium from synthetic and electroplating wastewater in batch and fixed-bed column adsorption

2017 ◽  
Vol 93 ◽  
pp. 61-73 ◽  
Author(s):  
Zohreh Aliakbari ◽  
Habibollah Younesi ◽  
Ali Asghar Ghoreyshi ◽  
Nader Bahramifar ◽  
Ava Heidari
Keyword(s):  
Activated Carbon ◽  
Sewage Sludge ◽  
Hexavalent Chromium ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Electroplating Wastewater ◽  
Column Adsorption

Fixed-bed column adsorption of the coffee aroma compound benzaldehyde from aqueous solution onto granular activated carbon from coconut husk

LWT ◽  
2014 ◽  
Vol 59 (2) ◽  
pp. 1025-1032 ◽  
Author(s):  
Anderson Marcos Dias Canteli ◽  
Danielle Carpiné ◽  
Agnes de Paula Scheer ◽  
Marcos R. Mafra ◽  
Luciana Igarashi-Mafra
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Fixed Bed ◽  
Granular Activated Carbon ◽  
Aroma Compound ◽  
Fixed Bed Column ◽  
Coconut Husk ◽  
Column Adsorption

Batch and Fixed-Bed Column Adsorption of Cd(II) from Aqueous Solution onto Oxidized Bead-Shaped Activated Carbon

2015 ◽  
Vol 48 (2) ◽  
pp. 123-126 ◽  
Author(s):  
Kotaku Takeuchi ◽  
Yoshimasa Amano ◽  
Motoi Machida ◽  
Fumio Imazeki
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Adsorption

scholarly journals Kinetic, equilibrium and thermodynamic studies of the adsorption of paracetamol in activated carbon in batch model and fixed-bed column

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Nathalia Krummenauer Haro ◽  
Ivone Vanessa Jurado Dávila ◽  
Keila Guerra Pacheco Nunes ◽  
Marcela Andrea Espina de Franco ◽  
Nilson Romeu Marcilio ◽  
...  
Keyword(s):  
Experimental Data ◽  
Activated Carbon ◽  
Adsorption Process ◽  
Fixed Bed ◽  
Experimental Conditions ◽  
Fixed Bed Column ◽  
Solid Adsorbent ◽  
Column Adsorption ◽  
Best Fit ◽  
Kinetic Equilibrium

AbstractThis work studied the removal of paracetamol through the adsorption process using the granular activated carbon. The results indicated that it was possible to obtain 95% of removal under the experimental conditions of pH 6, 120 min of process and 5 g L−1 of solid adsorbent. The kinetic model that best fit the experimental data was the pseudo-first order. The isotherm model that best fit the experimental data was the Sips. The thermodynamic tests indicated that the adsorption process was favorable and spontaneous and confirmed the endothermic nature of the process. In fixed bed column adsorption, the best operating condition found was obtained using the flow rate of 3 mL min−1 and bed mass equal to 0.5 g. In this case, the system presented the highest volume of treated PAR effluent, of 810 mL per gram of carbon in the bed, besides a longer rupture time and bed saturation.

Breakthrough analysis for hexavalent chromium removal from drinking water in a fixed bed column

2009 ◽  
Vol 9 (6) ◽  
pp. 661-670 ◽  
Author(s):  
S. P. Dubey ◽  
K. Gopal
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Fixed Bed ◽  
Entropy Change ◽  
Spectroscopic Technique ◽  
Fixed Bed Column ◽  
Chromium Vi ◽  
Fixed Bed Adsorption ◽  
Optimal Column ◽  
Eucalyptus Bark

The activated carbon of Eucalyptus globulus was tested for their effectiveness in removing hexavalent chromium from aqueous solution using column experiments. Result revealed that adsorption of chromium(VI) on eucalyptus bark carbon was endothermic in nature. Thermodynamic parameters such as the entropy change, enthalpy change and Gibbs free energy change were found to be 1.39 kJ mol−1 K−1, 1.08 kJ mol−1 and −3.85 kJ mol−1, respectively. Different chromium concentrations were used for the fixed bed adsorption studies. The pre- and post-treated adsorbents were characterized using a FTIR spectroscopic technique. It was concluded that Eucalyptus bark carbon column could be used effectively for removal of hexavalent chromium from aqueous solution at optimal column conditions. This study showed that this biological material is potential adsorbent of Cr(VI) from water.

scholarly journals Investigating the performance of agricultural wastes and their ashes in removing phenol from leachate in a fixed-bed column

2020 ◽  
Vol 81 (10) ◽  
pp. 2109-2126 ◽  
Author(s):  
Seyed Omid Ahmadinejad ◽  
Seyed Taghi Omid Naeeni ◽  
Zahra Akbari ◽  
Sara Nazif
Keyword(s):  
Activated Carbon ◽  
Large Scale ◽  
Fixed Bed ◽  
Walnut Shell ◽  
Continuous Systems ◽  
Phenol Removal ◽  
Adsorption Method ◽  
Fixed Bed Column ◽  
Saturation Time ◽  
Coconut Shell Activated Carbon

Abstract One of the major pollutants in leachate is phenol. Due to safety and environmental problems, removal of phenol from leachate is essential. Most of the adsorption studies have been conducted in batch systems. Practically, large-scale adsorption is carried out in continuous systems. In this research, the adsorption method has been used for phenol removal from leachate by using walnut shell activated carbon (WSA) and coconut shell activated carbon (CSA) as adsorbents in a fixed-bed column. The effect of adsorbent bed depth, influent phenol concentration and type of adsorbent on adsorption was explored. By increasing the depth of the adsorbent bed in the column, phenol removal efficiency and saturation time increase significantly. Also, by increasing the influent concentration, saturation time of the column decreases. To predict the column performance and describe the breakthrough curve, three kinetic models of Yon-Nelson, Adams-Bohart and Thomas were applied. The results of the experiments indicate that there is a good match between the results of the experiment and the predicted results of the models.

Analysis of Fixed-Bed Column Adsorption of Reactive Yellow 176 onto Surfactant-Modified Zeolite

2008 ◽  
Vol 47 (18) ◽  
pp. 6999-7004 ◽  
Author(s):  
Ayşegul Faki ◽  
Mustafa Turan ◽  
Ozgur Ozdemir ◽  
Abdullah Zahid Turan
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Column ◽  
Modified Zeolite ◽  
Column Adsorption
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