Adsorption–desorption characteristics of phenol and reactive dyes from aqueous solution on mesoporous activated carbon prepared from waste tires

2005 ◽  
Vol 39 (7) ◽  
pp. 1347-1353 ◽  
Author(s):  
W. Tanthapanichakoon ◽  
P. Ariyadejwanich ◽  
P. Japthong ◽  
K. Nakagawa ◽  
S.R. Mukai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Reactive Dyes ◽  
Waste Tires ◽  
Mesoporous Activated Carbon ◽  
Adsorption Desorption

scholarly journals Efficient adsorption of pharmaceutical drugs from aqueous solution using a mesoporous activated carbon

Adsorption ◽  
2019 ◽  
Vol 26 (2) ◽  
pp. 251-266 ◽  
Author(s):  
Tetiana Hubetska ◽  
Natalia Kobylinska ◽  
José R. García
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Pharmaceutical Drugs ◽  
Mesoporous Activated Carbon

Phosphate recovery from an aqueous solution through adsorption-desorption cycle over thermally treated activated carbon

2020 ◽  
Vol 36 ◽  
pp. 101302 ◽  
Author(s):  
Toshiki Miyazato ◽  
Nuryono Nuryono ◽  
Mrina Kobune ◽  
Bambang Rusdiarso ◽  
Ryoichi Otomo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Phosphate Recovery ◽  
Adsorption Desorption ◽  
Desorption Cycle ◽  
Thermally Treated

Mesoporous activated carbon from polyethyleneterephthalate (PET) waste: pollutant adsorption in aqueous solution

2018 ◽  
Vol 42 (17) ◽  
pp. 14612-14619 ◽  
Author(s):  
Cínthia Soares de Castro ◽  
Luísa Nagyidai Viau ◽  
Júlia Teixeira Andrade ◽  
Thais A. Prado Mendonça ◽  
Maraísa Gonçalves
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Adsorption Capacity ◽  
Activated Carbons ◽  
Large Molecule ◽  
High Adsorption ◽  
Pet Waste ◽  
Mesoporous Activated Carbon ◽  
High Adsorption Capacity

Activated carbons of high mesoporosity were prepared from PET wastes and presented high adsorption capacity, including relatively large-molecule dyes.

Application of Coagulation Systems Coupled with Adsorption on Powdered Activated Carbon to Textile Wastewater Treatment

2009 ◽  
Vol 4 (4) ◽  
Author(s):  
Franciele Regina Furlan ◽  
Laís Graziela de Melo da Silva ◽  
Ayres Ferreira Morgado ◽  
Antônio Augusto Ulson de Souza ◽  
Selene Maria Arruda Guelli Ulson de Souza
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Sodium Chloride ◽  
Adsorption Process ◽  
Reactive Dyes ◽  
Powdered Activated Carbon ◽  
Toxicity Tests ◽  
Isotherm Models ◽  
Solution Ph ◽  
Increased Temperature

The aim of the present study was to investigate the removal of reactive dyes, Black 5 and Orange 16, through a combined coagulation/adsorption process on activated carbon. A coconut-based powdered activated carbon was used as an adsorbent and aluminum chloride was chosen as the coagulant. In order to obtain the best removal conditions for these dyes, the influence of the following parameters were investigated: coagulant dosage, aqueous solution pH, addition of sodium chloride and the application of increased temperature plus sodium chloride. Adsorption results for the reactive dyes were analyzed by Langmuir and Freundlich isotherm models and showed good correlation. The presence of sodium chloride in the mixture resulted in significant adsorption improvement. The influence of increased temperature plus sodium chloride on the dye removal from aqueous solution showed the feasibility of adsorption and its endothermic nature. Through the reactivation experiments it was verified that the adsorbent can be reused three times, consecutively, after the first adsorption with the virgin carbon. For the final evaluation of the effluent, obtained after the coagulation and adsorption process, acute toxicity tests were carried out with Daphnia magna, and the results obtained showed that the final effluent was not toxic. The combined coagulation/adsorption process was found to be an excellent option for the removal of reactive dyes.

Adsorption of Triton X-100 in aqueous solution on activated carbon obtained from waste tires for wastewater decontamination

Adsorption ◽  
2019 ◽  
Vol 26 (2) ◽  
pp. 303-316 ◽  
Author(s):  
Aida Mireya Ramírez-Arias ◽  
Juan Carlos Moreno-Piraján ◽  
Liliana Giraldo
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Waste Tires ◽  
Triton X

scholarly journals Adsorption of gold from thiosulfate solutions with chemically modified activated carbon

2017 ◽  
Vol 36 (1-2) ◽  
pp. 408-428 ◽  
Author(s):  
Hong Yu ◽  
Futing Zi ◽  
Xianzhi Hu ◽  
Yanhe Nie ◽  
Yunlong Chen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Photoelectron Spectroscopy ◽  
Freundlich Isotherm ◽  
Modified Activated Carbon ◽  
New Approach ◽  
Complex Adsorption ◽  
Adsorption Kinetics And Isotherm ◽  
Thiosulfate Leaching ◽  
Adsorption Desorption

Adsorption of the gold–thiosulfate complex ion ([Formula: see text]) on silver ferrocyanide (AgFC)-impregnated activated carbon in aqueous solution has been studied in order to find an effectual adsorbent for the thiosulfate extracting gold from ores. This study was performed using AgFC-impregnated activated carbon (AC-Ag-R-FC: AC: activated carbon, Ag: silver nitrate, R: heating, FC: potassium ferrocyanide) and an artificial aqueous solution of [Formula: see text]. Gold–thiosulfate complex adsorption kinetics and isotherm studies were carried out at pH = 9.0 on modified materials. It has been also found that the adsorption fits the intraparticle diffusion and Freundlich isotherm well. In order to understand the adsorption mechanism, raw and modified materials were characterized by N2 adsorption–desorption measurements at 77 K, scanning electron microscopy and X-ray photoelectron spectroscopy. The maximum adsorption capability of [Formula: see text]on AC-Ag-R-FC is 3.55 kgt−1. Clearly, the extraordinary adsorption capacity of AC for [Formula: see text] offers a new approach to address challenging gold–thiosulfate complex separation and could promote the future development of thiosulfate leaching gold process.

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