Adsorption of Tetracyclin Hydrochloride from Aqueous Solutions on Activated Carbons

2019 ◽  
Vol 7 (3) ◽  
pp. 3-9
Author(s):  
Л. Григорьев ◽  
L. Grigorev ◽  
О. Шанова ◽  
O. Shanova ◽  
Л. Веренцова ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Aqueous Solutions ◽  
Kinetic Data ◽  
Activated Carbons ◽  
Sufficient Accuracy ◽  
Equilibrium Adsorption ◽  
Practical Application ◽  
Adsorption Activity ◽  
Two Samples ◽  
Kinetic Equilibrium

Have been studied kinetic, equilibrium, and dynamic conditions for adsorption of tetracycline hydrochloride from aqueous solutions on two samples of industrial activated carbons SKT and BAU-A. It has been determined that the kinetic data of adsorption can be approximated with sufficient accuracy by the Glückauf equation. To calculate tetracycline hydrochloride’s equilibrium adsorption, it has been proposed to use the Dubinin-Radushkevich equation, and to calculate the adsorption duration — the Dubinin-Nikolaev equation. The possibility for practical application of activated carbons for wastewater treatment from antibiotics has been demonstrated, and ways for increasing of these carbons’ adsorption activity have been proposed.

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.

Biosorption of basic dye from aqueous solutions by Date Stones and Palm-Trees Waste: Kinetic, equilibrium and thermodynamic studies

Desalination ◽  
2011 ◽  
Vol 271 (1-3) ◽  
pp. 80-87 ◽  
Author(s):  
Zohra Belala ◽  
Mejdi Jeguirim ◽  
Meriem Belhachemi ◽  
Fatima Addoun ◽  
Gwenaëlle Trouvé
Keyword(s):  
Aqueous Solutions ◽  
Thermodynamic Studies ◽  
Basic Dye ◽  
Palm Trees ◽  
Kinetic Equilibrium

Practical application of a combined treatment process for removal of recalcitrant NOM - alum and PAC

2004 ◽  
Vol 4 (4) ◽  
pp. 89-94 ◽  
Author(s):  
R. Fabris ◽  
C.W.K. Chow ◽  
M. Drikas
Keyword(s):  
High Performance ◽  
Treatment Process ◽  
Activated Carbons ◽  
Combined Treatment ◽  
Size Exclusion ◽  
Practical Application ◽  
Aluminium Sulphate ◽  
Treated Water ◽  
Trihalomethane Formation Potential ◽  
Exclusion Chromatography

Three different powdered activated carbons were applied in combination with aluminium sulphate to treat a high dissolved organic carbon (DOC) source water with a focus on improving natural organic matter removal. Treated water quality was analysed using absorbance at 254 nm, DOC, trihalomethane formation potential (THM-FP), rapid fractionation, C13 NMR and molecular weight distribution by high performance size exclusion chromatography. Carbon C and B offered equivalent DOC removal but carbon C was considered superior as treated water THM-FP was reduced. It is postulated that an organic fraction around 1000 Daltons is responsible for differences in THM-FP shown in the treated waters.

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

scholarly journals Photocatalytic Degradation of Naphthalene By UV/Zno: Kinetics, Influencing Factors and Mechanisms

2021 ◽  
Vol 37 (1) ◽  
pp. 65-70
Author(s):  
Aram Dokht Khatibi ◽  
Kethineni Chandrika ◽  
Ferdos Kord Mostafapour ◽  
Ali Akbar Sajadi ◽  
Davoud Balarak
Keyword(s):  
Wastewater Treatment ◽  
Reaction Time ◽  
Aqueous Solutions ◽  
Aromatic Hydrocarbons ◽  
Contact Time ◽  
Initial Concentration ◽  
Applied Study ◽  
Batch System ◽  
Initial Ph ◽  
Conventional Wastewater Treatment

Conventional wastewater treatment is not able to effectively remove Aromatic hydrocarbons such as Naphthalene, so it is important to remove the remaining antibiotics from the environment. The aim of this study was to evaluate the efficiency of UV/ZnOphotocatalytic process in removing naphthalene antibiotics from aqueous solutions.This was an experimental-applied study that was performed in a batch system on a laboratory scale. The variables studied in this study include the initial pH of the solution, the dose of ZnO, reaction time and initial concentration of Naphthalene were examined. The amount of naphthalene in the samples was measured using GC.The results showed that by decreasing the pH and decreasing the initial concentration of naphthalene and increasing the contact time, the efficiency of the process was developed. However, an increase in the dose of nanoparticles to 0.8 g/L had enhance the efficiency of the process was enhanced, while increasing its amount to values higher than 0.8 g/L has been associated with a decrease in removal efficiency.The results of this study showed that the use of UV/ZnOphotocatalytic process can be addressed as a well-organized method to remove naphthalene from aqueous solutions.

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

Kinetic, equilibrium and thermodynamic studies on sorption of uranium and thorium from aqueous solutions by a selective impregnated resin containing carminic acid

2015 ◽  
Vol 286 ◽  
pp. 152-163 ◽  
Author(s):  
Abolfazl Rahmani-Sani ◽  
Ahmad Hosseini-Bandegharaei ◽  
Seyyed-Hossein Hosseini ◽  
Keivan Kharghani ◽  
Hossein Zarei ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Carminic Acid ◽  
Thermodynamic Studies ◽  
Impregnated Resin ◽  
Kinetic Equilibrium
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