Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent

Kondapalli, Srividya; Mohanty, Kaustubha

doi:10.4236/jwarp.2011.36053

Cited by 13 publications

(6 citation statements)

References 25 publications

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“…Therefore, it can be said that the pseudo second order model is not suitable to explain the adsorption process accurately. Similar results have been reported for the sorption kinetics of various adsorbate onto various adsorbents in literature[12,[18][19]. Kinetic parameters for the removal of DY 211 by apricot stones are represented in Table4.…”

supporting

confidence: 82%

“…Increasing in the magnitude of ΔG° with the increasing temperature, means that the adsorption becomes more feasible at higher temperatures. [9,18,23] In general, ΔG° values between 0 and -20 kJ/mol corresponds to physical adsorption, and the chemical adsorption occurs when the ΔG° value is in the range of -80 to -400 kJ/mol [9]. The positive value of ΔH° indicates an endothermic process which is supported by the increased adsorption of DY 211 with increasing temperature.…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

“…The magnitude of ΔH° is very useful in describing the type of adsorption. If the magnitude of ΔH° is in the range of 2.1-20.9 kJ/mol, it denotes a physical adsorption process, while chemisorptions fall within the range of 80-200 kJ/mol [18,19].…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

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Düşük Maliyetli Biyolojik Atık Adsorbentlerin Tekstil Boyası Adsorpsiyonu Özelliklerinin Karşılaştırılması

Erdoğan¹

2017

J Text Eng

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In this study, cherry and apricot stones have been investigated as an adsorbent for removing disperse yellow 211 textile dye from aqueous solution. Cherry and apricot stones have been characterized by SEM (scanning electron microscopy) and N 2 adsorption isotherms. In the study, the effects of adsorbent dosage, contact time, temperature and pH value on the removal efficiency have been investigated. The Freundlich, Langmuir, Temkin and Dubinin-Radushkevich (DR) isotherms were tested to examine the adsorption behavior. The kinetic studies indicate that adsorption follows the pseudo first order model. Thermodynamic parameters, enthalpy, entropy and Gibbs free energy changes were established. The maximum adsorption capacity was found to be as high as 105.71 mg/g for cherry stones and 156.25 mg/g for apricot stones. These results showed that the adsorption capacity of apricot stones is about 1.5 times higher than that of cherry stones. The results support the potential use of cherry and apricot stones as efficient and low-cost adsorbents for the removal of textile dye from aqueous solution.

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supporting

confidence: 82%

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

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Düşük Maliyetli Biyolojik Atık Adsorbentlerin Tekstil Boyası Adsorpsiyonu Özelliklerinin Karşılaştırılması

Erdoğan¹

2017

J Text Eng

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“…Fish scales have also been studied as a source of biosorbents for heavy metal removal . Scales from fish species such as Gadus morhua (Basu et al 2006(Basu et al , 2007Rahaman et al 2015), Tilapia nilotica (Huang 2007;Zhe et al 2014;Zhu et al 2013), Oreochromis niloticus (Neves et al 2017;Ribeiro et al 2015;2018a, b), Labeo rohita (Chakraborty et al 2012;Iqbal et al 2011;Kondapalli and Mohanty 2011;Mandal et al 2015;Marrakchi et al 2016Marrakchi et al , 2017Nadeem et al 2008) and Catla catla (Das et al 2016;Kondapalli and Mohanty 2011;Prabu et al 2012;Srividya and Mohanty 2009) have been studied for the adsorption of pollutants from aqueous media. Croaker fish (Micropogonias undulatus) is scarcely investigated, and it is one easy way to assess in the current demographic of this study.…”

Section: Introductionmentioning

confidence: 99%

Response surface modelling of the biosorption of Zn(II) and Pb(II) onto Micropogonias undulatus scales: Box–Behnken experimental approach

Ighalo

Eletta

2020

Appl Water Sci

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In this study, the scales of Micropogonias undulatus fish were investigated as precursors for the development of low-cost biosorbent for the removal of Pb(II) and Zn(II) from aqueous media. The biosorbent was characterised using Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and X-ray diffractometry (XRD). Adsorption parameters (temperature, biosorbent dosage and contact time) were optimised using response surface methodology Box-Behnken experimental design. The optimal factors for Zn(II) removal by croaker fish scale were 145.5 min, 7.01 g/L biosorbent dosage, 30 °C and pH 5.4. The optimal factors for the removal of Pb(II) were 179.3 min, 6.61 g/L biosorbent dosage, 20 °C and pH 3.4. The numerical optimisation revealed that the optimal removal efficiency for Zn(II) and Pb(II) sorption is 96.45% and 98.76%, respectively. The biosorption of both heavy metals was best fit to Freundlich isotherm and pseudo-second-order kinetic models. Thermodynamics studies revealed that the biosorption process was exothermic and spontaneous. Keywords Biosorption • Croaker • Fish scales • Heavy metals • Box-Behnken Abbreviations AAS Atomic absorption spectrophotometry ANOVA Analysis of variance BBD Box-Behnken design Df Degree of freedom DOE Design of experiments FS Fish scales FTIR Fourier transform infrared spectroscopy Rpm Rounds per minute RSM Response surface methodology SEM Scanning electron microscopy XRD X-ray diffractometry List of symbols α Temkin isotherm constant (equilibrium binding constant) (L/mol) Ǻ Armstrong b Temkin constant related to the adsorption heat β Constant related to adsorption energy (mol 2 /J 2) C Constant of the thickness of boundary layer C e Equilibrium concentration (mg/L) C i Initial concentration (mg/L) C L Equilibrium concentration in the liquid phase C S Equilibrium concentration in the solid phase K F Freundlich constant (mg/g) K E Equilibrium constant K 1 Rate constant of the pseudo-first-order model (min −1) K 2 Rate constant of the pseudo-second-order model (gm g −1 min −1) K dif Intra-particle diffusion rate constant (mg/ gmin 0.5) K L Langmuir constant related to affinity (l/g) n Freundlich constant q e Amount of chemical species removed at equilibrium (mg/g) q max Maximum metal uptake (mg/g)

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“…Although chromium is available throughout eight valence says between 2 to be able to +6, Cr (III) as well as Cr (VI) are generally connected with significant environment value because of their stability from the environment [52]. Hexavalent Chromium is known to become human carcinogen depending on enough proof carcinogenicity throughout humans [54].…”

Section: Biosorption Connected With Cr (Vi)mentioning

confidence: 99%

Function Regarding Biosorption in the Environmental Washing

Tripathi¹,

Nayak²,

Satyavarali³

et al. 2015

J Environ Anal Toxicol

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Carbon dioxide has become the major problem because decades, destructing kinds of living conditions as well as methods. Between all sorts connected with pollutions, rock smog can be causing significant danger on the biosphere. It's mostly lead a result of the relieve connected with Professional wastes into your atmosphere. Industries follow a variety of element procedures to remove dangerous contaminants from the professional effluents related to a variety of cons as a result numerous eco-friendly strategies have fallen directly into gentle maintaining a result of the cons in the element strategies. Biosorption connected with large materials simply by microbial tissue has become thought to be the likely substitute for present technologies pertaining to retrieval connected with large materials coming from professional waste. Found assessment targets on the biosorption connected with different materials simply by different means that result in the ecofriendly clear in the atmosphere without causing any destruction therefore on the surroundings/without the relieve connected with substances into your atmosphere, this post mostly handles the biosorption connected with Fe, Cr(VI), You, Pb, Cu2+, Cd(II), Mn, Zn, National insurance, Lanthanides, National insurance and the function of the technique throughout clearing up in the atmosphere.

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Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent

Cited by 13 publications

References 25 publications

Düşük Maliyetli Biyolojik Atık Adsorbentlerin Tekstil Boyası Adsorpsiyonu Özelliklerinin Karşılaştırılması

Düşük Maliyetli Biyolojik Atık Adsorbentlerin Tekstil Boyası Adsorpsiyonu Özelliklerinin Karşılaştırılması

Response surface modelling of the biosorption of Zn(II) and Pb(II) onto Micropogonias undulatus scales: Box–Behnken experimental approach

Function Regarding Biosorption in the Environmental Washing

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