scholarly journals Efficient removal of methylene blue by low-cost and biodegradable highly effective adsorbents based on biomass in the fixed bed column

2020 ◽  
Vol 773 ◽  
pp. 012056
Author(s):  
D Sasaengta ◽  
M Panapoy ◽  
N Chaiyut ◽  
B Ksapabutr
Keyword(s):  
Methylene Blue ◽  
Low Cost ◽  
Fixed Bed ◽  
Efficient Removal ◽  
Fixed Bed Column ◽  
Highly Effective

Low-cost, biodegradable and highly effective adsorbents for batch and column fixed bed adsorption processes of methylene blue

2019 ◽  
Vol 7 (5) ◽  
pp. 103409 ◽  
Author(s):  
Amina Aichour ◽  
Hassina Zaghouane-Boudiaf ◽  
Fathiah Binti Mohamed Zuki ◽  
Mohamed Kheireddine Aroua ◽  
César Viseras Ibbora
Keyword(s):  
Methylene Blue ◽  
Low Cost ◽  
Fixed Bed ◽  
Fixed Bed Adsorption ◽  
Highly Effective ◽  
Adsorption Processes

scholarly journals Use of low-cost adsorbent derived from the brazilian cerrado biome to remove pollutants in effluent

2021 ◽  
Vol 10 (13) ◽  
pp. e58101321154
Author(s):  
Mateus Rodrigues Brito ◽  
Matheus Gomes Arruda ◽  
Marcelo Mendes Pedroza ◽  
Helida Monique Cordasso Fagnani ◽  
Angélica Jaconi ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Zinc Chloride ◽  
Low Cost ◽  
Fixed Bed ◽  
Thomas Model ◽  
Adsorption System ◽  
Brazilian Cerrado ◽  
Fixed Bed Column ◽  
Drug Adsorption ◽  
Activated Biochar

The biochar of the Pequi peel represents a sustainable alternative in the process of treating effluents through adsorption system. This study investigates the adsorption capacity in a fixed bed column of the activated biochar from pequi peel (ABPP) to remove the components. The biochar was obtained by pyrolysis, which was activated with zinc Chloride - ZnCl₂. Through the Thomas model, it was found that the concentration of Paracetamol of 5 mg L-1 obtained 3.21 mg g-1 of drug adsorption, which was higher than the adsorption obtained with the concentrations of 10 mg L-1 (3.02 mg g-1) and 20 mg L1 (1.22 mg g-1). Methylene blue was tested with a concentration of 3 mg L-1, adsorbing 8.07 mg g-1. The data fit the Thomas model with an R² higher than 0.90. The capacity of ABPP to adsorb methylene blue and Paracetamol was satisfactory, with adsorbing significant.

Adsorption of Methylene Blue from Solution by Natural Zeolite in Fixed-Bed Column: Effect of Bed Depth

2012 ◽  
Vol 518-523 ◽  
pp. 3115-3119
Author(s):  
Yan Qiang Li ◽  
Xiao Feng Ren ◽  
Shao Hua Chen ◽  
Xiu Rong Zhao ◽  
Run Ping Han
Keyword(s):  
Methylene Blue ◽  
Natural Zeolite ◽  
Fixed Bed ◽  
Breakthrough Curves ◽  
Form Solution ◽  
Column Height ◽  
Nonlinear Regression Analysis ◽  
Adsorption Ability ◽  
Fixed Bed Column ◽  
Linear And Nonlinear

The effect of bed depth on adsorption ability of natural zeolite to removal methylene blue (MB) from aqueous solution in the fixed-bed column was studied. The results showed that the increase in column height favored the MB removal form solution. The equilibrium uptake of MB onto unit mass zeolite increased with the bed depth growth. The experimental data were fitted to Yan model using linear and nonlinear regression analysis, respectively. The experimental points and the predicted curves using the Yan model were compared and the error analysis was performed. The results indicated that Yan model were good to predict the breakthrough curves and both two methods can be used to obtain the parameters of Yan model and to predict the breakthrough curves.

Synthesis of ultralight phosphorylated carbon aerogel for efficient removal of U(VI): Batch and fixed-bed column studies

2019 ◽  
Vol 370 ◽  
pp. 1376-1387 ◽  
Author(s):  
Zhibin Zhang ◽  
Zhimin Dong ◽  
Xiangxue Wang ◽  
Ying Dai ◽  
Xiaohong Cao ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Carbon Aerogel ◽  
Column Studies ◽  
Efficient Removal ◽  
Fixed Bed Column

Adsorption characteristics of methylene blue onto agricultural wastes lotus leaf in bath and column modes

2011 ◽  
Vol 64 (3) ◽  
pp. 654-660 ◽  
Author(s):  
Xiuli Han ◽  
Wei Wang ◽  
Xiaojian Ma
Keyword(s):  
Methylene Blue ◽  
Fixed Bed ◽  
Isotherm Models ◽  
Column Experiments ◽  
Fixed Bed Column ◽  
Lotus Leaf ◽  
Bed Height ◽  
Column Adsorption ◽  
Equilibrium Data ◽  
Leaf Powder

The adsorption potential of lotus leaf to remove methylene blue (MB) from aqueous solution was investigated in batch and fixed-bed column experiments. Langmuir, Freundlich, Temkin and Koble–Corrigan isotherm models were employed to discuss the adsorption behavior. The results of analysis indicated that the equilibrium data were perfectly represented by Temkin isotherm and the Langmuir saturation adsorption capacity of lotus leaf was found to be 239.6 mg g−1 at 303 K. In fixed-bed column experiments, the effects of flow rate, influent concentration and bed height on the breakthrough characteristics of adsorption were discussed. The Thomas and the bed-depth/service time (BDST) models were applied to the column experimental data to determine the characteristic parameters of the column adsorption. The two models were found to be suitable to describe the dynamic behavior of MB adsorbed onto the lotus leaf powder column.

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