Phenol Removal from Aqueous Solution using Synthetic V-Shaped Organic Adsorbent: kinetics, isotherm, and thermodynamics studies

2021 ◽  
pp. 138959
Author(s):  
Salah A. Al-Trawneh ◽  
Anwar G. Jiries ◽  
Solhe F. Alshahateet ◽  
Suresh Sagadevan
Keyword(s):  
Aqueous Solution ◽  
Phenol Removal

Novel eco-friendly amino-modified nanoparticles for phenol removal from aqueous solution

2020 ◽  
Vol 27 (24) ◽  
pp. 30694-30705
Author(s):  
Alaa M. Younis ◽  
Eman M. Elkady ◽  
Sayed M. Saleh
Keyword(s):  
Aqueous Solution ◽  
Phenol Removal

scholarly journals Phenol removal from aqueous solution using silica and activated carbon derived from rice husk

2019 ◽  
Vol 14 (4) ◽  
pp. 897-907 ◽  
Author(s):  
Hosseinali Asgharnia ◽  
Hamidreza Nasehinia ◽  
Roohollah Rostami ◽  
Marziah Rahmani ◽  
Seyed Mahmoud Mehdinia
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Water Treatment ◽  
Organic Pollutants ◽  
Rice Husk ◽  
Contact Time ◽  
Adsorption Process ◽  
Phenol Removal ◽  
Initial Concentration ◽  
Maximum Removal

Abstract Phenol and its derivatives are organic pollutants with dangerous effects, such as poisoning, carcinogenicity, mutagenicity, and teratogenicity in humans and other organisms. In this study, the removal of phenol from aqueous solution by adsorption on silica and activated carbon of rice husk was investigated. In this regard, the effects of initial concentration of phenol, pH, dosage of the adsorbents, and contact time on the adsorption of phenol were investigated. The results showed that the maximum removal of phenol by rice husk silica (RHS) and rice husk activated carbon (RHAC) in the initial concentration of 1 mgL−1 phenol, 2 gL−1 adsorbent mass, 120 min contact time, and pH 5 (RHS) or pH 6 (RHAC) were obtained up to 91% and 97.88%, respectively. A significant correlation was also detected between increasing contact times and phenol removal for both adsorbents (p < 0.01). The adsorption process for both of the adsorbents was also more compatible with the Langmuir isotherm. The results of this study showed that RHS and RHAC can be considered as natural and inexpensive adsorbents for water treatment.

Phenol Removal from Aqueous Solution by Microwave Combined with Granular Active Carbon

2013 ◽  
Vol 807-809 ◽  
pp. 1543-1546
Author(s):  
Dong Yuan ◽  
Da You Fu ◽  
Ming Sheng Gui ◽  
Wen Yuan Tan
Keyword(s):  
Aqueous Solution ◽  
Active Carbon ◽  
Microwave Power ◽  
Irradiation Time ◽  
Removal Rate ◽  
Order Reaction ◽  
Phenol Removal ◽  
Effective Factors ◽  
First Order ◽  
Granular Active Carbon

The removal of phenol from aqueous solution was evaluated by using microwave technique assisted with active carbon. The effective factors such as the concentration of phenol , active carbon dosage, microwave power and irradiation time on the removal rate were investigated. When the concentration of phenol was 150 mg/l, active carbon dosage was 6 g/l, microwave power was 500 W, and irradiation time was 8 min, the removal ratio of phenol reached 95. 03%. The research on kinetics suggested that the process of treatment accords to the first-order reaction.

scholarly journals Removal of phenol from aqueous solution by adsorption onto seashells: equilibrium, kinetic and thermodynamic studies

2013 ◽  
Vol 3 (2) ◽  
pp. 119-127 ◽  
Author(s):  
Papita Das Saha ◽  
Jaya Srivastava ◽  
Shamik Chowdhury
Keyword(s):  
Aqueous Solution ◽  
Adsorption Process ◽  
Phenol Concentration ◽  
Phenol Removal ◽  
Solution Ph ◽  
Initial Ph ◽  
Equilibrium Data ◽  
Initial Phenol Concentration ◽  
Adsorption Equilibrium Data ◽  
Adsorbent Dose

The efficacy of seashells as a new adsorbent for removal of phenol from aqueous solutions was studied by performing batch equilibrium tests under different operating parameters such as solution pH, adsorbent dose, initial phenol concentration, and temperature. The phenol removal efficiency remained unaffected when the initial pH of the phenol solution was in the range of 3–8. The amount of phenol adsorbed increased with increasing initial phenol concentration while it decreased with increasing temperature. The adsorption equilibrium data showed excellent fit to the Langmuir isotherm model with maximum monolayer adsorption capacity of 175.27 mg g−1 at pH 4.0, initial phenol concentration = 50 mg L−1, adsorbent dose = 2 g and temperature = 293 K. Analysis of kinetic data showed that the adsorption process followed pseudo-second-order kinetics. Activation energy of the adsorption process, calculated using the Arrhenius equation, was found to be 51.38 kJ mol−1, suggesting that adsorption of phenol onto seashells involved chemical ion-exchange. The numerical value of the thermodynamic parameters (ΔG0, ΔH0 and ΔS0) indicated that adsorption of phenol onto seashells was feasible, spontaneous and endothermic under the examined conditions. The study shows that seashells can be used as an economic adsorbent for removal of phenol from aqueous solution.

Activated carbon derived from date stone as natural adsorbent for phenol removal from aqueous solution

2017 ◽  
Vol 72 ◽  
pp. 406-417 ◽  
Author(s):  
Hasan Pasalari ◽  
Hamid Reza Ghaffari ◽  
Amir Hossein Mahvi ◽  
Mina Pourshabanian ◽  
Ali Azari
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Phenol Removal ◽  
Natural Adsorbent

scholarly journals Effective biosorption of phenol by the thermophilic cyanobacterium Phormidium sp.

2017 ◽  
Vol 76 (12) ◽  
pp. 3190-3194 ◽  
Author(s):  
Sevgi Ertuğrul Karatay ◽  
Gönül Dönmez ◽  
Zümriye Aksu
Keyword(s):  
Aqueous Solution ◽  
Specific Rate ◽  
Phenol Removal ◽  
Adsorption Models ◽  
Adsorption Time ◽  
Ph Values ◽  
Biosorption Process ◽  
Thermophilic Cyanobacterium ◽  
Equilibrium Data ◽  
Initial Phenol Concentration

Abstract The use of microbial biomass as biosorbent for phenol removal has been extensively studied, but its removal by biosorption by thermophilic cyanobacterium Phormidium sp. has not been investigated to the best of our knowledge. In the present study, some important parameters for biosorption process were optimized, starting with testing the effects of different pH values ranging from 1 to 12, and then initial phenol concentrations of 45.1, 115.3, 181.4, 243.3, 339.9 mg/L on phenol uptake. The efficiency of removal from aqueous solution was higher within the pH 6–8 range, with the maximum of 100% at pH 7 after 24 hours of adsorption time. The highest specific rate was observed as 165.1 mg/g in the presence of 339.9 mg/l initial phenol concentration. The Freundlich adsorption models were fitted to the equilibrium data, which indicated that phenol ions were favourably adsorbed by Phormidium sp.

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