Batch Adsorption of Herbicides from Aqueous Solution Onto Diverse Reusable Materials and Granulated Activated Carbon

2021 ◽  
Author(s):  
John McGinley ◽  
Mark G. Healy ◽  
Paraic Ryan ◽  
Per-Erik Mellander ◽  
Liam Morrison ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Batch Adsorption ◽  
Granulated Activated Carbon

scholarly journals Adsorption of Phenol from Aqueous Solution Using Activated Carbon prepared from Coconut Shell

2017 ◽  
Vol 29 (1) ◽  
pp. 9-13
Author(s):  
Masuma Sultana Ripa ◽  
Rafat Mahmood ◽  
Sabrina Khan ◽  
Easir A Khan
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Adsorption Isotherm ◽  
Iodine Number ◽  
Chemical Engineering ◽  
Coconut Shell ◽  
Physical Activation ◽  
Batch Adsorption ◽  
Adsorption Model ◽  
Solution Ph

Adsorption separation of phenol from aqueous solution using activated carbon was investigated in this work. The adsorbent was prepared from coconut shell and activated by physical activation method. The coconut shell was first carbonized at 800°C under nitrogen atmosphere and activated by CO2 at the same temperature for one hour. The prepared activated carbon was characterized by Scanning Electron Microscope (SEM) and BET Surface Analyzer and by the determination of iodine number as well as Boehm titration. The iodine number indicates the degree of relative activation of the adsorbent. The equilibrium adsorption isotherm phenol from aqueous solution was performed using liquid phase batch adsorption experiments. The effect of experimental parameters including solution pH, agitation time, particle size, temperature and initial concentration was investigated. The equilibrium data was analyzed using Langmuir and Freundlich adsorption model to describe the adsorption isotherm and estimate the adsorption isotherm parameters. The results indicate the potential use of the adsorbent for removal of phenol from the aqueous solution.Journal of Chemical Engineering, Vol. 29, No. 1, 2017: 9-13

scholarly journals Removal of Erichrome Black T from Synthetic Wastewater by Cotton Waste

2011 ◽  
Vol 8 (2) ◽  
pp. 803-808 ◽  
Author(s):  
U. V. Ladhe ◽  
S. K. Wankhede ◽  
V. T. Patil ◽  
P. R. Patil
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Chemical Kinetics ◽  
Contact Time ◽  
Ph Effect ◽  
Physicochemical Characterization ◽  
Synthetic Wastewater ◽  
Batch Adsorption ◽  
Experimental Parameters ◽  
Cotton Waste

Adsorptions of Erichrome Black T dye in aqueous solution on cotton stem activated carbon have been studied as a function of contact time, concentration and pH. Effect of various experimental parameters has been investigated at 39±1°C under batch adsorption technique. The result shows that cotton stem activated carbon adsorbs dye to a sufficient extent. The physicochemical characterization and chemical kinetics was also examined for the same dye. The overall result shows that it can be fruitfully used for the removal of dye from wastewaters.

Activated carbon from Luffa cylindrica doped chitosan for mitigation of lead(ii) from an aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 22639-22652 ◽  
Author(s):  
Asha H. Gedam ◽  
Rajendra S. Dongre
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Batch Adsorption ◽  
Luffa Cylindrica

The present study is concerned with the batch adsorption of toxic lead(ii) ions from an aqueous solution using activated carbon from a Luffa cylindrica fibers doped chitosan (ACLFCS) biocomposite as an adsorbent.

Adsorption of Methylene Blue from Aqueous Solution using Microwave-Assisted BaCl2 Modified Activated Carbon Produced from Mango Seed Shell

2019 ◽  
Vol 3 (Issue 1) ◽  
Author(s):  
A.O Ajani ◽  
E.O Dada ◽  
O.A Olu-arotiowa ◽  
I.O Okeowo ◽  
A.O Alade ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Diffusion Mechanism ◽  
Harmful Effect ◽  
Microwave Frequency ◽  
Particle Model ◽  
Batch Adsorption ◽  
Mango Seed ◽  
Mb Adsorption

The presence of methylene blue (MB) in wastewater is a major concern in the environment due to its low biodegradability and harmful effect on man. The adsorption of MB from aqueous solution onto activated carbon (AC) prepared from mango seed shells sourced locally in Ogbomoso Township was investigated in this study. The AC was prepared from mango seed shell by activating with BaCl2 at impregnation ratio I.R (1:2 w/w), microwave frequency (600 Hz), and time (30 min) before being carbonized at 500 °C for 20 min. Batch adsorption experiment was carried out at 25 °C to study the effect of contact time and initial dye concentration on MB adsorption. The equilibrium kinetics and adsorption mechanism were investigated. The pseudo first order, high correlation coefficients, R, (0.9491 and 0.9907) for initial concentrations of 10 and 15 mg/L, respectively, was very suitable to describe the kinetic characteristics of the MB adsorption on to mango seed shell activated carbon, Weber and Morris intra-particle model with R of 0.9907, is very fit to describe the diffusion mechanism of the adsorption process. The result implied that mango seed shell was suitable as an adsorbent material for adsorption of MB.

Kinetics and adsorption equilibrium in the system aqueous solution of copper ions—granulated activated carbon

2010 ◽  
Vol 59 (10) ◽  
pp. 1859-1864 ◽  
Author(s):  
P. Senthil Kumar ◽  
V. SathyaSelvaBala ◽  
K. Ramakrishnan ◽  
P. Vijayalakshmi ◽  
S. Sivanesan
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Adsorption Equilibrium ◽  
Copper Ions ◽  
Granulated Activated Carbon

scholarly journals Removal of Cd (II) ions from Aqueous Solution by Adsorption on Activated Carbon Prepared from Lapsi (Choerospondias axillaris) Seed Stone

2016 ◽  
Vol 11 (1) ◽  
pp. 140-150 ◽  
Author(s):  
Rajeshwar Man Shrestha
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Metal Ion ◽  
Activated Carbons ◽  
Freundlich Isotherm ◽  
Batch Adsorption ◽  
Metal Ion Removal ◽  
Ion Removal ◽  
Equilibrium Data ◽  
Methylene Blue Number

Batch adsorption experiments were conducted for the adsorption of Cd (II) ions from aqueous solution by activated carbon prepared from Lapsi seed stone. The activated carbon was characterized by Iodine number, Methylene blue number, SEM and FTIR. Adsorption experiments were carried out to describe the effect of pH ,contact time and  adsorbent dose on the metal ion removal process .The results showed that the adsorption of Cd (II) ions was very fast initially and the equilibrium time was 3 hrs.The pH of 6.0 was an optimal pH for adsorption  of Cd(II) ions. Langmuir and Freundlich adsorption isotherms were used to explain the equilibrium data. Langmuir model best described the data with higher value of coeffcient of determination as −1 compared to that of Freundlich isotherm showing a maximum uptake of 37.0 mgg . This study demonstrated that the activated carbons prepared from Lapsi seed stone could be used for the removal of Cd (II) ions in water treatment. Journal of the Institute of Engineering, 2015, 11(1): 140-150

Cd(II) removal on surface-modified activated carbon: equilibrium, kinetics and mechanism

2016 ◽  
Vol 74 (8) ◽  
pp. 1800-1808 ◽  
Author(s):  
Jianjun Liang ◽  
Meiling Liu ◽  
Yufei Zhang
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Orthogonal Experiment ◽  
Xrd Analysis ◽  
Bet Surface Area ◽  
Batch Adsorption ◽  
Maximum Adsorption Capacity ◽  
Modified Activated Carbon ◽  
Surface Modified

Commercial pulverous activated carbon (AC-0) was modified through two steps: oxidize AC-0 acid firstly, impregnate it with iron using ferric chloride secondly. Orthogonal experiment was conducted then to prepare modified activated carbon with high Cd(II) adsorption capacity (ACNF). Batch adsorption experiments were undertaken to determine the adsorption characteristics of Cd(II) from aqueous solution onto AC-0 and ACNF and the effect of pH, contact time and initial Cd(II) concentration. The results indicate that: the adsorption behavior of Cd(II) on ACNF can be well fitted with Langmuir model, and the maximum adsorption capacity of ACNF was 2.3 times higher than that of AC-0, supporting a monolayer coverage of Cd(II) on the surface. The kinetics of the adsorption process can be described by pseudo-second-order rate equation very well, and the adsorption capacity increased from 0.810 mg/g to 0.960 mg/g after modification. Compared with AC-0, the kinetic parameters of ACNF showed a higher adsorption rate through the aqueous solution to the solid surface and a lower intraparticle diffusion rate. Surface modification resulted in a lower Brunauer–Emmett–Teller (BET) surface area and pore size because of the collapse and blockage of pores, according to the X-ray diffraction (XRD) analysis, while the total number of surface oxygen acid groups increased, and this was supposed to contribute to the enhanced adsorption capacity of modified activated carbon.

Adsorption of methylene blue and Congo red from aqueous solution by activated carbon and carbon nanotubes

2013 ◽  
Vol 68 (10) ◽  
pp. 2240-2248 ◽  
Author(s):  
M. Szlachta ◽  
P. Wójtowicz
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Congo Red ◽  
Solution Temperature ◽  
Adsorptive Capacity ◽  
Batch Adsorption ◽  
Maximum Adsorption Capacity ◽  
Kinetics Of

This study was conducted to determine the adsorption removal of dyes by powdered activated carbon (PAC, Norit) and multi-walled carbon nanotubes (MWCNTs, Chinese Academy of Science) from an aqueous solution. Methylene blue (MB) and Congo red (CR) were selected as model compounds. The adsorbents tested have a high surface area (PAC 835 m2/g, MWCNTs 358 m2/g) and a well-developed porous structure which enabled the effective treatment of dye-contaminated waters and wastewaters. To evaluate the capacity of PAC and MWCNTs to adsorb dyes, a series of batch adsorption experiments was performed. Both adsorbents exhibited a high adsorptive capacity for MB and CR, and equilibrium data fitted well with the Langmuir model, with the maximum adsorption capacity up to 400 mg/g for MB and 500 mg/g for CR. The separation factor, RL, revealed the favorable nature of the adsorption process under experimental conditions. The kinetics of adsorption was studied at various initial dye concentrations and solution temperatures. The pseudo-second-order model was used for determining the adsorption kinetics of MB and CR. The data obtained show that adsorption of both dyes was rapid in the initial stage and followed by slower processing to reach the plateau. The uptake of dyes increased with contact time, irrespective of their initial concentration and solution temperature. However, changes in the solution temperature did not significantly influence dye removal.

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