Transformation of industrial and organic waste into titanium doped activated carbon – cellulose nanocomposite for rapid removal of organic pollutants

2022 ◽  
Vol 423 ◽  
pp. 126958 ◽  
Author(s):  
Qaisar Maqbool ◽  
Gianni Barucca ◽  
Simona Sabbatini ◽  
Marco Parlapiano ◽  
Maria Letizia Ruello ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Organic Pollutants ◽  
Organic Waste ◽  
Rapid Removal

A quantitative speciation model for the adsorption of organic pollutants on activated carbon

2013 ◽  
Vol 68 (6) ◽  
pp. 1370-1376 ◽  
Author(s):  
M. Grivé ◽  
D. García ◽  
C. Domènech ◽  
L. Richard ◽  
I. Rojo ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Organic Pollutants ◽  
Current Knowledge ◽  
Quantitative Description ◽  
High Capacity ◽  
Chemical Properties ◽  
Quantitative Model ◽  
Surface Groups ◽  
Potentiometric Titrations ◽  
Chemical Groups

Granular activated carbon (GAC) is commonly used as adsorbent in water treatment plants given its high capacity for retaining organic pollutants in aqueous phase. The current knowledge on GAC behaviour is essentially empirical, and no quantitative description of the chemical relationships between GAC surface groups and pollutants has been proposed. In this paper, we describe a quantitative model for the adsorption of atrazine onto GAC surface. The model is based on results of potentiometric titrations and three types of adsorption experiments which have been carried out in order to determine the nature and distribution of the functional groups on the GAC surface, and evaluate the adsorption characteristics of GAC towards atrazine. Potentiometric titrations have indicated the existence of at least two different families of chemical groups on the GAC surface, including phenolic- and benzoic-type surface groups. Adsorption experiments with atrazine have been satisfactorily modelled with the geochemical code PhreeqC, assuming that atrazine is sorbed onto the GAC surface in equilibrium (log Ks = 5.1 ± 0.5). Independent thermodynamic calculations suggest a possible adsorption of atrazine on a benzoic derivative. The present work opens a new approach for improving the adsorption capabilities of GAC towards organic pollutants by modifying its chemical properties.

Test-fitting on adsorption isotherms of organic pollutants from waste waters on activated carbon

1998 ◽  
Vol 229 (1-2) ◽  
pp. 105-110 ◽  
Author(s):  
A. Meghea ◽  
H. H. Rehner ◽  
I. Peleanu ◽  
R. Mihalache
Keyword(s):  
Activated Carbon ◽  
Organic Pollutants ◽  
Adsorption Isotherms ◽  
Waste Waters

Activated-Carbon Adsorption of Organic Pollutants

1988 ◽  
pp. 579-596 ◽  
Author(s):  
Gerhard Zimmer ◽  
Heinz-Jürgen Brauch ◽  
Heinrich Sontheimer
Keyword(s):  
Activated Carbon ◽  
Organic Pollutants ◽  
Activated Carbon Adsorption ◽  
Carbon Adsorption

In-situ synthesis of metal oxide and polymer decorated activated carbon-based photocatalyst for organic pollutants degradation

2022 ◽  
pp. 120380
Author(s):  
Amar R. Singh ◽  
Pratik S. Dhumal ◽  
Madhuri Bhakare ◽  
Kshama D. Lokhande ◽  
Mahesh P. Bondarde ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Metal Oxide ◽  
Organic Pollutants ◽  
In Situ Synthesis ◽  
Carbon Based

Activated carbon immobilized WO3 nanocuboids: Adsorption/photocatalysis synergy for the enhanced removal of organic pollutants

2020 ◽  
Vol 121 ◽  
pp. 108215
Author(s):  
K.S. Bhavsar ◽  
P.K. Labhane ◽  
V.R. Huse ◽  
R.B. Dhake ◽  
G.H. Sonawane
Keyword(s):  
Activated Carbon ◽  
Organic Pollutants
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