Description and estimation of adsorption from multicomponent aqueous solutions of dissociating organic substances on activated carbons

1994 ◽  
Vol 125 (1) ◽  
pp. 1-14
Author(s):  
Anna Deryło-Marczewska
Keyword(s):  
Aqueous Solutions ◽  
Activated Carbons ◽  
Organic Substances

scholarly journals Oxytetracycline Adsorption from Aqueous Solutions on Commercial and High-Temperature Modified Activated Carbons

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3481
Author(s):  
Joanna Lach ◽  
Agnieszka Ociepa-Kubicka ◽  
Maciej Mrowiec
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Activated Carbons ◽  
Electricity Consumption ◽  
Solution Ph ◽  
Carbon Modification ◽  
Modification Method ◽  
Flow Through ◽  
Proposed Modification ◽  
Modified Activated Carbons

The aim of the work was to evaluate the possibility of using commercial and modified activated carbons for the removal of oxytetracycline from aqueous solutions. The kinetics and statics of adsorption as well as the effect of the activated carbon dose and solution pH on the efficiency of the oxytetracycline adsorption were analyzed. Based on the study of oxytetracycline adsorption isotherms, the activated carbons were ranked in the following order: F-300 > WG-12 > Picabiol > ROW08 > WACC 8 × 30 > F-100 > WAZ 0.6–2.4. The most effective activated carbons were characterized by large specific surfaces. The best matching results were obtained for: Redlich–Peterson, Thot and Jovanovic models, and lower for the most frequently used Freundlich and Langmuir models. The adsorption proceeded better from solutions with pH = 6 than with pH = 3 and 10. Two ways of modifying activated carbon were also assessed. A proprietary method of activated carbon modification was proposed. It uses the heating of activated carbon as a result of current flow through its bed. Both carbons modified at 400 °C in the rotary kiln and on the proprietary SEOW (Joule-heat) modification stand enabled to obtain adsorbents with higher and comparable monolayer capacities. The advantage of the proposed modification method is low electricity consumption.

scholarly journals Effect of Surface Acidic Groups of Activated Carbons on The Adsorption Rate from Aqueous Solutions

TANSO ◽  
1991 ◽  
Vol 1991 (148) ◽  
pp. 151-156
Author(s):  
Kazuji Kushiro ◽  
Hirokazu Oda ◽  
Chikao Yokokawa
Keyword(s):  
Aqueous Solutions ◽  
Activated Carbons ◽  
Adsorption Rate ◽  
Effect Of Surface

Adsorption of Phenolic Compounds from Aqueous Solutions, by Activated Carbons, Described by the Dubinin−Astakhov Equation

Langmuir ◽  
2001 ◽  
Vol 17 (11) ◽  
pp. 3301-3306 ◽  
Author(s):  
Fritz Stoeckli ◽  
M. Victoria López-Ramón ◽  
Carlos Moreno-Castilla
Keyword(s):  
Phenolic Compounds ◽  
Aqueous Solutions ◽  
Activated Carbons

159. Adsorption studies of strontium on activated carbons from aqueous solutions

Carbon ◽  
1984 ◽  
Vol 22 (2) ◽  
pp. 221-222
Author(s):  
J Rivera-Utrilla ◽  
M.A Ferro-Garcia ◽  
A Mata-Arjona
Keyword(s):  
Aqueous Solutions ◽  
Activated Carbons ◽  
Adsorption Studies

Performances of metals modified activated carbons for fluoride removal from aqueous solutions

2020 ◽  
Vol 754 ◽  
pp. 137705
Author(s):  
Soumia Bakhta ◽  
Zahra Sadaoui ◽  
Ulla Lassi ◽  
Henrik Romar ◽  
Riikka Kupila ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Activated Carbons ◽  
Fluoride Removal ◽  
Modified Activated Carbons
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