Modeling equilibrium adsorption of organic micropollutants onto activated carbon

2010 ◽  
Vol 44 (10) ◽  
pp. 3077-3086 ◽  
Author(s):  
D.J. de Ridder ◽  
L. Villacorte ◽  
A.R.D. Verliefde ◽  
J.Q.J.C. Verberk ◽  
S.G.J. Heijman ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Equilibrium Adsorption ◽  
Organic Micropollutants

Resorcinarene Cavitand Polymers for the Remediation of Halomethanes and 1,4-Dioxane

2019 ◽  
Author(s):  
Luke Skala ◽  
Anna Yang ◽  
Max Justin Klemes ◽  
Leilei Xiao ◽  
William Dichtel
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
High Capacity ◽  
The United States ◽  
Water Sources ◽  
Disinfection Byproducts ◽  
Porous Polymer ◽  
Organic Micropollutants ◽  
Executive Summary ◽  
Regulatory Limits

<p>Executive summary: Porous resorcinarene-containing polymers are used to remove halomethane disinfection byproducts and 1,4-dioxane from water.<br></p><p><br></p><p>Disinfection byproducts such as trihalomethanes are some of the most common micropollutants found in drinking water. Trihalomethanes are formed upon chlorination of natural organic matter (NOM) found in many drinking water sources. Municipalities that produce drinking water from surface water sources struggle to remain below regulatory limits for CHCl<sub>3</sub> and other trihalomethanes (80 mg L<sup>–1</sup> in the United States). Inspired by molecular CHCl<sub>3</sub>⊂cavitand host-guest complexes, we designed a porous polymer comprised of resorcinarene receptors. These materials show higher affinity for halomethanes than a specialty activated carbon used for trihalomethane removal. The cavitand polymers show similar removal kinetics as activated carbon and have high capacity (49 mg g<sup>–1</sup> of CHCl<sub>3</sub>). Furthermore, these materials maintain their performance in real drinking water and can be thermally regenerated under mild conditions. Cavitand polymers also outperform activated carbon in their adsorption of 1,4-dioxane, which is difficult to remove and contaminates many public water sources. These materials show promise for removing toxic organic micropollutants and further demonstrate the value of using supramolecular chemistry to design novel absorbents for water purification.<br></p>

scholarly journals Removing polycyclic aromatic hydrocarbons from water using granular activated carbon: kinetic and equilibrium adsorption studies

2018 ◽  
Vol 25 (14) ◽  
pp. 13511-13524 ◽  
Author(s):  
Dinushika Eeshwarasinghe ◽  
Paripurnanda Loganathan ◽  
Mahatheva Kalaruban ◽  
Danious Pratheep Sounthararajah ◽  
Jaya Kandasamy ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Carbon ◽  
Aromatic Hydrocarbons ◽  
Granular Activated Carbon ◽  
Equilibrium Adsorption ◽  
Adsorption Studies ◽  
Polycyclic Aromatic

Equilibrium adsorption study of the adsorptive removal of Cd2+ and Cr6+ using activated carbon

2018 ◽  
Vol 25 (25) ◽  
pp. 25538-25550 ◽  
Author(s):  
Weiliang Wang ◽  
Ying Liu ◽  
Xiaohui Liu ◽  
Baojun Deng ◽  
Shaoyong Lu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Equilibrium Adsorption ◽  
Adsorption Study ◽  
Adsorptive Removal
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