scholarly journals Competitive Adsorption of Congo red in Single and Binary Systems Using a Low-cost Adsorbent

2021 ◽  
Vol 11 (31) ◽  
Author(s):  
Abdur-Rahim A. Giwa ◽  
Isah A. Bello ◽  
Mary A. Oladipo ◽  
Deborah O. Aderibigbe
Keyword(s):  
Aqueous Solution ◽  
Binary System ◽  
Congo Red ◽  
Binary Systems ◽  
Optimum Dose ◽  
Reactive Black 5 ◽  
Single System ◽  
Parkia Biglobosa ◽  
Equilibrium Data ◽  
Single And Binary Systems

Background. Sawdust from Parkia biglobosa was prepared as an adsorbent for the adsorption of dye from aqueous solution. Objectives. The ability of sawdust to adsorb Congo red in a single dye system and binary dye system was examined. Methods. Effects of several variables (pH, contact time, initial dye concentration and adsorbent dose) were investigated and optimum conditions were established. The equilibrium data were subjected to kinetic and isotherm models. Results. Equilibrium time was observed at 600 mins while the optimum dose was 0.2 g and there was an increase in adsorption at low pH. The equilibrium data fitted the Freundlich isotherm model in both systems (coefficient correlation (R2) > 0.9). Harkin-Jura was the worst-fitted (R2 < 0.8). The qm in the single system (21.65) was lower than in BDS (27.17; 34.01). The values of 1/n show the heterogeneity on the surface of sawdust which reduced in the BDS. The increase in qm in the binary system showed that the presence of another dye (Reactive black 5) had a synergistic effect on the adsorption of Congo red. The kinetics of the process followed the pseudo-second-order model both in the single system and one of the binary systems. The dynamics of the process showed that the single system was non-spontaneous at low temperatures, endothermic and increased randomness on the surface of the adsorbent, while in the binary system, the process was exothermic and had little affinity for the adsorbent. Conclusions. Sawdust from Parkia biglobosa is a potential adsorbent for removing Congo red dye from aqueous solution in single and binary systems. Competing Interests. The authors declare no competing financial interests.

Removal of Congo red from aqueous solution in single and binary mixture systems using Argan nutshell wood

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammed El Khomri ◽  
Noureddine El Messaoudi ◽  
Abdellah Dbik ◽  
Safae Bentahar ◽  
Abdellah Lacherai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Binary System ◽  
Congo Red ◽  
Isotherm Models ◽  
Single System ◽  
Batch Mode ◽  
Content Type ◽  
Pseudo Second Order ◽  
Electron Microscope Analysis ◽  
Cr Removal

Purpose Argan nutshell wood (ANW) has been used in this study as an agricultural solid waste to remove Congo red (CR) from an aqueous solution in single and mixture binary in the presence of methylene blue (MB) or crystal violet (CV). Design/methodology/approach The ANW was characterized by Fourier transform infrared and scanning electron microscope analysis. The effect of ANW dose (8–40 gL−1), contact time (0–180 min), pH of the solution (4–11) and CR dye concentration (100–500 mgL−1) on CR adsorption was studied in batch mode and evaluated by kinetic and isotherm models in a single system. In the binary system, the CR removal was studied from a CR + MB and CR + CV mixture with different percentages of dyes, ranging from 0% to 100%. Findings The pseudo-second-order and the Langmuir models could best describe the CR sorption onto ANW in a single system. In addition, in the case of the binary system, there is the appearance of a synergistic phenomenon between the CR and the other cationic dyes and the CR adsorption capacity increased until 12.24 mg g-1 and 12.06 mg g-1 in the presence of the MB and CV in the mixture, respectively. Practical implications This study demonstrated that ANW prepared can be suggested as an excellent potential adsorbent to remove dyes from wastewaters from single and mixture systems. Originality/value This study is original.

scholarly journals Kinetics of the Adsorption of Copper and Lead Ions from Aqueous Solution on to WD-ekstra Activated Carbon

2002 ◽  
Vol 20 (5) ◽  
pp. 441-452 ◽  
Author(s):  
Joanna Kapica ◽  
Robert Pełech ◽  
Jacek Przepiórski ◽  
Antoni W. Morawski
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Binary System ◽  
Metal Ion ◽  
Binary Systems ◽  
Considerable Influence ◽  
Equilibrium Isotherms ◽  
Adsorption Processes ◽  
Two Stages ◽  
Kinetics Of

The kinetics of the adsorption of Cu2+ and Pb2+ ions from aqueous solution on to WD-ekstra activated carbon was studied by batch methods. Such adsorption processes proceeded in two stages: an initial rapid stage followed by a slower one. The Bangham equation was used to describe the kinetics of both adsorption processes. Measurements were carried out for solutions containing only one type of metal ion and also for binary systems containing both Cu2+ and Pb2+ ions. A considerable influence of Pb2+ ions on the adsorption of Cu2+ ions was observed in the binary system. It was found that the equilibrium isotherms could be analyzed using the Langmuir, Freundlich–Langmuir and Freundlich methods.

scholarly journals Adsorption of p-Dihydroxybenzene from Single, Binary and Ternary Aqueous Systems onto Activated Charcoal

2005 ◽  
Vol 23 (1) ◽  
pp. 67-79
Author(s):  
Khalil A. Halhouli ◽  
Naif A. Darwish ◽  
Ya'rub Y. Al-Jahmani
Keyword(s):  
Binary System ◽  
Adsorption Capacity ◽  
Activated Charcoal ◽  
Binary Systems ◽  
Physical Adsorption ◽  
Appreciable Effect ◽  
Free System ◽  
Acid Sodium Salt ◽  
Single And Binary Systems ◽  
Increasing Temperature

The adsorption of para-dihydroxybenzene ( p-DHB) from aqueous multi-component systems onto activated charcoal was investigated. The study involved the adsorption of p-DHB from systems containing all combinations of p-DHB, phenol and 4-amino-1-naphthalene sulphonic acid sodium salt (ANSA) in aqueous solutions. Equilibrium isotherms were generated at three temperature values (30°C, 40°C and 55°C). As expected for exothermic physical adsorption, the adsorption of p-DHB from the single-component system and from the binary system containing ANSA decreased with increasing temperature. However, the adsorption of p-DHB from the binary system containing phenol increased with temperature. The effect of KCl and NaCl (at a concentration of 0.05 M) at 30°C was also investigated. The adsorption of p-DHB varied from one system to another. Both salts reduced the adsorption of p-DHB from the single and binary systems. The reduction in adsorption capacity (relative to the adsorption capacity in a salt-free system) attained only ca. 35% in the case of single-solute adsorption and ca. 20% and 33% from the binary systems containing p-DHB and phenol or ANSA, respectively. In contrast, the presence of KCl or NaCl had no appreciable effect on the adsorption of p-DHB from the ternary system.

scholarly journals Competitive Adsorption of Cd (II) and Zn (II) in Single and Binary systems from Aqueous Solutions onto Cork Stopper Particles

2019 ◽  
Vol 26 (1) ◽  
pp. 17-27
Author(s):  
Shahlaa E. Ebrahime ◽  
Saja H. Alsaade
Keyword(s):  
Experimental Data ◽  
Binary System ◽  
Metal Ions ◽  
Binary Systems ◽  
Isotherm Models ◽  
Cork Stopper ◽  
Langmuir Isotherm Model ◽  
Simulated Wastewater ◽  
Single And Binary Systems ◽  
Metal Ions Removal

The possibility of using cork stopper particles as a biosorbent for the removal of Cd (II) and Zn (II) from simulated wastewater was studied. Batch sorption experiments of single and binary components systems were conducted as a function of pH, sorbent dosage; contact time, and agitation speed were investigated to optimize the best conditions for maximum of metal ions removal. The experimental data fitted slightly best to the Langmuir isotherm model than to Freundlich and Temkin isotherm models. The experimental data proved that the adsorption kinetic of Cd (II) and Zn (II) could be described by a pseudo-first order model. The sequence for metal ions removal in single and binary system was Zn (II)> Cd (II), the removal efficiency of both metals decreased in the binary system.

scholarly journals Biosorption Behavior of Basic Red 46 and Violet 3 by DeadPleurotus mutilusfrom Single- and Multicomponent Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
N. Yeddou Mezenner ◽  
A. Hamadi ◽  
S. Kaddour ◽  
Z. Bensaadi ◽  
A. Bensmaili
Keyword(s):  
Binary Systems ◽  
Kinetic Studies ◽  
Second Order ◽  
Order Kinetic ◽  
Single System ◽  
Order Kinetic Model ◽  
Endothermic Process ◽  
Pseudo Second Order ◽  
Single And Binary Systems ◽  
Basic Red 46

The performance of nonviableP. mutilusfor removal of Crystal Violet (CV) and Basic Red 46 (BR46) was investigated in single and binary systems. Batch kinetic studies were carried out as a function of pH, temperature, biomass amount, and dye concentration to determine the decolorization efficiency of biosorbent. In single system, the biosorption capacities ofP. M.reached 166 and 76.92 mg/g for CV and BR46, respectively. A comparison of kinetic models applied to the adsorption of basic dyes ontoP. Mutiluswas evaluated for the pseudo-second-order and intraparticle diffusion kinetics models. The experimental data fitted very well the pseudo-second-order kinetic model, whereas diffusion is not only the rate-controlling step. The thermodynamic study indicates that the adsorption of dyes is spontaneous and endothermic process. In binary system, the biosorption capacities ofP. Mutilusfor both dyes decreased significantly compared to that in single system. Competitive coefficients calculated on a concentration basis using Sheindorf-Rebhun-Sheintuch (SRS) equation were useful for describing the degree of competitive interaction inP. M.

Adsorptive removal of diclofenac and ibuprofen from aqueous solution by organobentonites: Study in single and binary systems

2019 ◽  
Vol 8 ◽  
pp. 520-529 ◽  
Author(s):  
Rima Ghemit ◽  
Abdessalam Makhloufi ◽  
Nessima Djebri ◽  
Abdenacer Flilissa ◽  
Larbi Zerroual ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Binary Systems ◽  
Adsorptive Removal ◽  
Single And Binary Systems

Magnetic nanopowder as effective adsorbent for the removal of Congo Red from aqueous solution

2013 ◽  
Vol 69 (6) ◽  
pp. 1234-1240 ◽  
Author(s):  
O. Paşka ◽  
R. Ianoş ◽  
C. Păcurariu ◽  
A. Brădeanu
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Congo Red ◽  
Polluted Water ◽  
Maximum Adsorption Capacity ◽  
Anionic Dyes ◽  
Solution Ph ◽  
Efficient Combustion ◽  
Equilibrium Data ◽  
Pseudo Second Order

A magnetic iron oxide nanopowder (MnP), prepared by a simple and efficient combustion synthesis technique, was tested for the removal of the anionic dye Congo Red (CR) from aqueous solution. The influence of solution pH, adsorbent dose, temperature, contact time and initial dye concentration on the adsorption of CR onto MnP were investigated. It was shown that the CR adsorption was pH dependent and the adsorption mechanism was governed by electrostatic forces. The adsorption kinetic was best described by the pseudo-second-order model and the equilibrium data were well fitted to the Langmuir isotherm, yielding maximum adsorption capacity of 54.46 mg g−1. The undeniable advantages of the MnP adsorbent such as inexpensive preparation method, good adsorption capacity and easy separation using an external magnetic field, recommend it as a promising candidate for the removal of anionic dyes from polluted water.

scholarly journals Single and Binary Adsorption of Cu(II) and Ni(II) Ions from Aqueous Solutions by Sunflower Seed Husk

2019 ◽  
Vol 26 (1) ◽  
pp. 35-43
Author(s):  
Shahad A. Abdulhussein ◽  
Abeer I. Al wared
Keyword(s):  
Metal Ions ◽  
Sunflower Seed ◽  
Binary Systems ◽  
Batch Reactor ◽  
Kinetic Studies ◽  
Order Model ◽  
Component System ◽  
Equilibrium Data ◽  
Seed Husk ◽  
Single And Binary Systems

This research presents the possibility of using sunflower seed husk as an adsorbent for the removal of Cu+2 and Ni+2 ions from simulated aqueous solution. A series of experiments were carried out in a batch reactor to obtain equilibrium data for adsorption of single and binary metal solutions. Experiments parameters such as pH, sorbent dosage, contact time, agitation speed and initial metal ions concentration were studied to optimize the best conditions. The results showed that the best parameters were evaluated to be 5, 7g/l, 120 min, 175rpm and 10mg/l for both ions, respectively. At these parameters, the monolayer adsorption capacity calculated from Langmuir model was obtained 23.4940, 11.3051 mg/g for Cu+2 and Ni+2 ions, respectively in single component system and it decreased to 18.6962, 9.2366 mg/g for binary component system, respectively and the sequence for metal ions removal in single and binary systems was Cu(II) > Ni(II) with 92.5% and 84.8% maximum removal efficiencies. Kinetic studies showed that a pseudo second order model was more suitable than the pseudo first order model.

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