Kinetics of Humics Removal from Water and Wastewater Using Granular Activated Carbon, Iron-Coated Activated Alumina, and Beta Ferric Oxihydroxide

2010 ◽  
Vol 27 (5) ◽  
pp. 387-395 ◽  
Author(s):  
Majeda Khraisheh ◽  
Cecile Andre ◽  
Mohamad AlGhouti
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Activated Alumina ◽  
Water And Wastewater ◽  
Carbon Iron ◽  
Kinetics Of

scholarly journals Modeling of the adsorption kinetics of zinc onto granular activated carbon and natural zeolite

2006 ◽  
Vol 71 (8-9) ◽  
pp. 957-967 ◽  
Author(s):  
Ljiljana Markovska ◽  
Vera Meshko ◽  
Mirko Marinkovski
Keyword(s):  
Mass Transfer ◽  
Activated Carbon ◽  
Simulation Study ◽  
Natural Zeolite ◽  
Granular Activated Carbon ◽  
Model Parameters ◽  
Mass Transfer Resistance ◽  
External Mass Transfer ◽  
Transfer Resistance ◽  
Kinetics Of

The isotherms and kinetics of zinc adsorption from aqueous solution onto granular activated carbon (GAC) and natural zeolite were studied using an agitated batch adsorber. The maximum adsorption capacities of GAC and natural zeolite towards zinc(II) from Langmuir adsorption isotherms were determined using experimental adsorption equilibrium data. The homogeneous solid diffusion model (HSD-model) combined with external mass transfer resistance was applied to fit the experimental kinetic data. The kinetics simulation study was performed using a computer program based on the proposed mathematical model and developed using gPROMS. As the two-mass transfer resistance approach was applied, two model parameters were fitted during the simulation study. External mass transfer and solid phase diffusion coefficients were obtained to predict the kinetic curves for varying initial Zn(II) concentration at constant agitation speed and constant adsorbent mass. For any particular Zn(II) - adsorbent system, k f was constant, except for the lowest initial concentration, while D s was found to increase with increasing initial Zn(II) concentration.

Removal of cyanide from water and wastewater using granular activated carbon

2009 ◽  
Vol 146 (3) ◽  
pp. 408-413 ◽  
Author(s):  
Rajesh Roshan Dash ◽  
Chandrajit Balomajumder ◽  
Arvind Kumar
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Water And Wastewater

Adsorption isotherm and kinetics of paraquat removal using activated carbon/iron oxide composite material

2016 ◽  
Vol 17 (3/4) ◽  
pp. 189
Author(s):  
Jirapat Ananpattarachai ◽  
Pattra Aphaiphak ◽  
Rokarn Ard ong ◽  
Puangrat Kajitvichyanukul ◽  
Yung Tse Hung
Keyword(s):  
Composite Material ◽  
Activated Carbon ◽  
Iron Oxide ◽  
Adsorption Isotherm ◽  
Oxide Composite ◽  
Carbon Iron ◽  
Kinetics Of ◽  
Oxide Composite Material

scholarly journals Influence of Ph on Adsorption Kinetics of Monochlorophenols From Aqueous Solutions on Granular Activated Carbon / Wpływ Ph Na Kinetykę Adsorpcji Monochlorofenoli Z Roztworów Wodnych Na Granulowanym Węglu Aktywnym

2015 ◽  
Vol 22 (1) ◽  
pp. 95-105 ◽  
Author(s):  
Krzysztof Kuśmierek ◽  
Andrzej Świątkowski
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Granular Activated Carbon ◽  
Pka Values ◽  
Ph Values ◽  
Experimental Parameters ◽  
Acid And Base ◽  
Influence Of Ph ◽  
Kinetics Of

Abstract Adsorptive removal of 2-, 3- and 4-chlorophenol from aqueous solutions by granular activated carbon was studied. The influence of different experimental parameters like initial concentration, carbon dosage and pH on the adsorption of monochlorophenols were evaluated. The influence of type of acid and base used for water acidification or alkalization was also tested. The results indicate that acidic pH is favorable for the adsorption of chlorophenols; however the type of acid or alkali used for the change of pH has a little influence and did not significantly affect the adsorption efficiency. The pH played an important role in the adsorption kinetics of chlorophenols at pH values above the pKa values of the compounds, while little influence on adsorption rate was observed if pH was decreased below the pKa values

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