Equilibrium and kinetics of adsorption of picloram and parathion with soils

1978 ◽  
Vol 26 (6) ◽  
pp. 1306-1312 ◽  
Author(s):  
James W. Biggar ◽  
Uri Mingelgrin ◽  
Max W. Cheung
Keyword(s):  
Kinetics Of Adsorption ◽  
Equilibrium And Kinetics ◽  
Kinetics Of

scholarly journals Study of the adsorption capacity of Fe(II) dissolved in water by using a mineral rich in Manganese Dioxide (MnO2) from Colombia

DYNA ◽  
2016 ◽  
Vol 83 (196) ◽  
pp. 223-228 ◽  
Author(s):  
Jhonnathan Machado-Infante ◽  
Gustavo Ramírez-Caballero ◽  
Martha Juliana Barajas Meneses
Keyword(s):  
Aqueous Solution ◽  
Raman Spectroscopy ◽  
Water Treatment ◽  
Adsorption Capacity ◽  
Open Systems ◽  
Kinetics Of Adsorption ◽  
Equilibrium And Kinetics ◽  
Pseudo Second Order ◽  
Potential Alternative ◽  
Kinetics Of

<p>In Colombia, a mineral rich in MnO<sub>2</sub> is extracted from the mines of Mallama, Nariño. In this work we studied the adsorption capacity of this mineral for Fe(II) dissolved in aqueous solution of open systems. The characterization was done through ICP-AES, XRF and Raman spectroscopy. The effect of different pretreatments on the mineral with oxidizing agents such as KMnO<sub>4</sub> and NaClO was evaluated. Studies of equilibrium and kinetics of adsorption showed that the mechanism fits well to the Langmuir isotherm and its kinetics to a model of pseudo-second order. At the conditions studied was found that the adsorption capacity for the mineral modified with KMnO<sub>4</sub> and NaOCl were 59.209 and 51.279 mg/g respectively. It is concluded that the mineral is a potential alternative in water treatment.</p>

Equilibrium and kinetics of adsorption of phosphate onto iron-doped activated carbon

2012 ◽  
Vol 19 (7) ◽  
pp. 2908-2917 ◽  
Author(s):  
Zhengfang Wang ◽  
Er Nie ◽  
Jihua Li ◽  
Mo Yang ◽  
Yongjun Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Kinetics Of Adsorption ◽  
Iron Doped ◽  
Equilibrium And Kinetics ◽  
Kinetics Of

scholarly journals Batch study, equilibrium and kinetics of adsorption of naphthalene using waste tyre rubber granules

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Felix A. Aisien ◽  
Andrew N. Amenaghawon ◽  
Albert I. Adinkwuye
Keyword(s):  
Contact Time ◽  
Batch Adsorption ◽  
Order Kinetic ◽  
Kinetics Of Adsorption ◽  
Isotherm Equation ◽  
Operational Variables ◽  
Langmuir Isotherm Equation ◽  
Equilibrium And Kinetics ◽  
Waste Tyre ◽  
Kinetics Of

The potential use of waste tyre rubber granules (WTRG) for the batch adsorption of naphthalene from aqueous solutions was investigated. The effect of various operational variables such as contact time, initial naphthalene concentration, adsorbent dose, size of adsorbent particles, and temperature of solution on the adsorption capacity of WTRG was evaluated. The adsorption of naphthalene by WTRG was a fast kinetic process with an equilibrium contact time of 60 min. A low temperature (5°C), small adsorbent particle size (0.212 mm) and higher adsorbent dosage favored the adsorption process. Results of isotherm studies revealed that adsorption of naphthalene was best described by the Langmuir isotherm equation (R<sup>2</sup>=0.997) while the kinetics of the process was best described by the Lagergren pseudofirst order kinetic equation (R<sup>2</sup>=0.998). This study has demonstrated the suitability of WTRG for the removal of naphthalene from aqueous solution.

scholarly journals Study of Equilibrium and Kinetics of Pb(II) in Solution Using Persimmon Tannin Gel as an Adsorbent

2019 ◽  
Vol 22 (6) ◽  
pp. 310-316 ◽  
Author(s):  
Thamrin Azis ◽  
La Ode Ahmad ◽  
Fajrin E. Rosa ◽  
Laode Abdul Kadir
Keyword(s):  
Metal Ions ◽  
Adsorption Capacity ◽  
Adsorption Rate ◽  
Maximum Adsorption Capacity ◽  
Physical Interaction ◽  
Adsorption Method ◽  
Kinetics Of Adsorption ◽  
Equilibrium And Kinetics ◽  
Adsorption Rates ◽  
Kinetics Of

Heavy metals concentrations exceeding the recommended threshold are hazardous for the environment, so there is a need for handling it safely. The purpose of this research was to determine the adsorption capacity and kinetics of adsorption. This research uses an adsorption method in the process of removing Pb(II) heavy metal ions using persimmon tannin gel. Besides the influence of contact time, pH, and the concentration of Pb(II) metal ions on adsorption, a kinetics study was also carried out. The adsorption rate is obtained through the adsorption rate constant (K) and the reaction order generated from the kinetics model. Based on the results of the research, showed the optimum adsorption process, which is 20 minutes and at a pH of 5. The maximum adsorption capacity of 17.62 mg/g with the value of the standard energy changes of Gibbs adsorption (-ΔG° = -14.274 kJ/moll) indicates that the adsorption takes place through physical interaction. The kinetic adsorption gives the adsorption rates a constant of, k = 0.008231 g/mg.min.

Equilibrium and kinetics of adsorption of methylene blue on Ti-modified volcanic ashes

AIChE Journal ◽  
2010 ◽  
Vol 57 (3) ◽  
pp. 819-825 ◽  
Author(s):  
P. Esparza ◽  
M. E. Borges ◽  
L. Díaz ◽  
M. C. Alvarez-Galván ◽  
J. L. G. Fierro
Keyword(s):  
Methylene Blue ◽  
Kinetics Of Adsorption ◽  
Volcanic Ashes ◽  
Equilibrium And Kinetics ◽  
Kinetics Of
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