Concurrent removal of cadmium and benzene from aqueous solution by powdered activated carbon impregnated alginate beads

CATENA ◽  
2017 ◽  
Vol 148 ◽  
pp. 101-107 ◽  
Author(s):  
Abinashi Sigdel ◽  
Woosik Jung ◽  
Booki Min ◽  
Minsun Lee ◽  
Uikyu Choi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Alginate Beads ◽  
Powdered Activated Carbon

scholarly journals The impact of humic acid on metaldehyde adsorption onto powdered activated carbon in aqueous solution

RSC Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 11-22 ◽  
Author(s):  
Zhuojun Li ◽  
Yuchen Yang ◽  
Ulises Jáuregui-Haza ◽  
Zhengxiao Guo ◽  
Luiza Cintra Campos
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Humic Acid ◽  
Powdered Activated Carbon ◽  
The Impact

Powdered activated carbon with abundant micropores and mesopores can effectively remove metaldehyde from aqueous solution in the presence of humic acid.

Lead Sorption by Carbon Nanofibers Grown on Powdered Activated Carbon — Kinetics and Equilibrium

NANO ◽  
2015 ◽  
Vol 10 (02) ◽  
pp. 1550017 ◽  
Author(s):  
Abdullah Al Mamun ◽  
Yehya M. Ahmed ◽  
Ma'an Fahmi R. AlKhatib ◽  
Ahmad Tariq Jameel ◽  
Mohammed Abdul Hakeem Abdul Rahman AlSaadi
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Carbon Nanofibers ◽  
Research Work ◽  
Palm Kernel ◽  
Solid Substrate ◽  
Second Order ◽  
Powdered Activated Carbon ◽  
Palm Kernel Shell ◽  
Pseudo Second Order

Carbon nanofibers (CNFs) were synthesized by using a safe and less hazardous method, compared to using floating catalysts in chemical vapor deposition (CVD) process. This process used C 2 H 2 as carbon source and oil palm kernel shell-based powdered activated carbon (PAC) as cheap solid substrate. Use of nickel ( Ni 2+) impregnated PAC as fixed substrate for the synthesis of CNF is one of the novelties of the research work accomplished by the authors. The PAC–CNFs porous nanocomposite product was used for the sorption of lead ions ( Pb 2+) from synthetic aqueous solution. Kinetics of Pb 2+ adsorption and isotherms were investigated by varying initial concentration of lead and contact time. PAC–CNFs were found to remove Pb 2+ better at acidic pH of about 5.5. Langmuir and Freundlich isotherms were applied to the sorption equilibrium data to find the best fitted model. Langmuir isotherm model with R2 = 0.965 fitted the adsorption data better than the Freundlich isotherm. The kinetic processes of Pb 2+ adsorption on CNFs were investigated by applying different kinetic models, namely zero-order, pseudo-first-order and pseudo-second-order. The pseudo-second-order rate equation exhibited the best results with R2 = 0.999, qe = 74.79 (mg/g) and K2 = 0.029 (min ⋅ g/mg). The novel nanocomposite product seemed to have the potential to remove Pb 2+ ions from aqueous solution.

Kinetic Adsorption of Hazardous Methylene Blue from Aqueous Solution onto Iron-Impregnated Powdered Activated Carbon

2019 ◽  
Vol 17 (4) ◽  
pp. 78-86 ◽  
Author(s):  
Athit Phetrak ◽  
◽  
Sirirat Sangkarak ◽  
Sumate Ampawong ◽  
Suda Ittisupornrat ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Powdered Activated Carbon ◽  
Kinetic Adsorption

Adsorption of Bisphenol S from aqueous solution on powdered activated carbon and chronic toxicity evaluation with microcrustacean Ceriodaphnia dubia

2020 ◽  
Vol 37 ◽  
pp. 101490
Author(s):  
Jarina Maria S. Couto ◽  
Andreza de L. Souza ◽  
Carla Rênes de A. Machado ◽  
Ronei de Almeida ◽  
André Luís de Sá Salomão ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Chronic Toxicity ◽  
Ceriodaphnia Dubia ◽  
Powdered Activated Carbon ◽  
Toxicity Evaluation ◽  
Bisphenol S

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.

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