Adsorption of phenol and o-chlorophenol on surface altered fly ash based molecular sieves

Kamble, Sanjay P.; Mangrulkar, Priti A.; Bansiwal, Amit; Rayalu, Sadhana

doi:10.1016/j.cej.2007.05.030

Cited by 82 publications

(51 citation statements)

References 23 publications

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“…Equilibrium studies were carried out by taking 0.3 g powdered activated Carbon with 25 mL phenol solution of different initial concentrations (10,20,30,50,60, and 70 μg/L) for the aqueous solution of phenol in twelve (250mL) conical flask. The pH of the solutions was adjusted to 6.0 by adding either 0.1 M HCl or 0.1 M NaOH solutions.…”

Section: Adsorption Studymentioning

confidence: 99%

Kinetic and Thermodynamic Study of Phenol Removal from Water Using Activated Carbon Synthesizes from Avocado Kernel Seed

Kassahun

Khalid

Shimeles

2016

ILNS

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ABSTRACT. This study was aimed for removal of phenol from water using activated carbon synthesize from avocado kernel seeds by adsorption onto it. For adsorption process cleaned and washed avocado kernel seeds (Persea americana) were dried at 100°C in an oven overnight and carbonization was carried out by increasing the furnace temperature at a rate of 5 °C/min to a final temperature of 800 °C for 160 minutes. Then, the activated carbon was powdered and sieved, washed with distilled water until the solution pH reached 7.0. Optimization of activated carbon was performed through effects of solution pH, contact time; initial phenol concentration and temperature of the adsorption. The kinetic studies of the adsorption process were achieved by verifying various models and the data obtained was best fitted to pseudo-second-order kinetic model. The isotherms models were analyzed with Langmuir, Freundlich and Temkin to validate the adsorption process. It was found that Langmuir model was best fitted to the obtained result for both adsorbents.

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Section: Adsorption Studymentioning

confidence: 99%

Kinetic and Thermodynamic Study of Phenol Removal from Water Using Activated Carbon Synthesizes from Avocado Kernel Seed

Kassahun

Khalid

Shimeles

2016

ILNS

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“…Adsorption technology is currently being applied extensively to the removal of organic and inorganic micro-pollutants from aqueous solutions. Several adsorbents have been investigated earlier such as activated carbon [12], biosorbents [13], clays [14], zeolites [15] and synthetic resins [16,17]. An ideal adsorbent should have features of strong affinity to target sorbate, large surface area and high pore volume with more binding sites.…”

Section: Introductionmentioning

confidence: 99%

Functionalized magnetic MCM-48 nanoporous silica by cyanuric chloride for removal of chlorophenol and bromophenol from aqueous media

Anbia

Khoshbooei

2014

J Nanostruct Chem

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A novel adsorbent with magnetic Fe 3 O 4 nanoparticles and melamine-based dendrimer amine functionalized mesoporous silica (MDA-magMCM-48) has been developed which would not destroy the pore structure and could supply a convenient way for separation of the adsorbent from water. The obtained adsorbent was characterized by XRD, SEM, TEM, FTIR, TGA and N 2 adsorptiondesorption isotherm. The objective of this study was to evaluate the effectiveness of mesoporous MDA-magMCM-48 material for the sorption of 4-chlorophenol (4-CP) and 4-bromophenol (4-BP). The effects of various operating parameters such as initial concentration, pH of the solution and contact time were thoroughly studied. From the sorption studies it is observed that the uptake of 4-CP (239.55 mg/g) was higher than that of 4-BP (222.9 mg/g). The Freundlich and Langmuir adsorption isotherms are used to model the equilibrium adsorption data.

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“…Phenols are among the most common water pollutants that can cause hazards including health hazard which may lead to death. Amongst hydrocarbons present in refinery wastewater, phenol is one of the main dissolved components and it is also one of the difficult hydrocarbons to degrade biologically [2,3]. Consequently, pollution control and management have evolved many technologies for the treatment of wastewater [4,5].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimization for Production of Rice Husk Activated Carbon and Adsorption of Phenol

Mohammad¹,

Shaibu-Imodagbe²,

Igboro³

et al. 2014

Journal of Engineering

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Modeling of adsorption process establishes mathematical relationship between the interacting process variables and process optimization is important in determining the values of factors for which the response is at maximum. In this paper, response surface methodology was employed for the modeling and optimization of adsorption of phenol onto rice husk activated carbon. Among the action variables considered are activated carbon pretreatment temperature, adsorbent dosage, and initial concentration of phenol, while the response variables are removal efficiency and adsorption capacity. Regression analysis was used to analyze the models developed. The outcome of this research showed that 99.79% and 99.81% of the variations in removal efficiency and adsorption capacity, respectively, are attributed to the three process variables considered, that is, pretreatment temperature, adsorbent dosage, and initial phenol concentration. Therefore, the models can be used to predict the interaction of the process variables. Optimization tests showed that the optimum operating conditions for the adsorption process occurred at initial solute concentration of 40.61 mg/L, pretreatment temperature of 441.46 ∘ C, adsorbent dosage 4 g, adsorption capacity of 0.9595 mg/g, and removal efficiency of 97.16%. These optimum operating conditions were experimentally validated.

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Adsorption of phenol and o-chlorophenol on surface altered fly ash based molecular sieves

Cited by 82 publications

References 23 publications

Kinetic and Thermodynamic Study of Phenol Removal from Water Using Activated Carbon Synthesizes from Avocado Kernel Seed

Kinetic and Thermodynamic Study of Phenol Removal from Water Using Activated Carbon Synthesizes from Avocado Kernel Seed

Functionalized magnetic MCM-48 nanoporous silica by cyanuric chloride for removal of chlorophenol and bromophenol from aqueous media

Modeling and Optimization for Production of Rice Husk Activated Carbon and Adsorption of Phenol

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