Survey efficiency of electrocoagulation on nitrate removal from aqueous solution

Malakootian, Mohammad; Yousefi, Nader; Fatehizadeh, Ali

doi:10.1007/bf03326200

Cited by 78 publications

(34 citation statements)

References 35 publications

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“…The isotherm describes the multilayer adsorption with a heterogeneous energetic distribution of active sites, accomplished by interaction between adsorbed molecules [34]. The linearized and logarithmic expression of the Freundlich model is [35].…”

Section: Adsorption Isotherm Freundlich Adsorption Isothermmentioning

confidence: 99%

Electrocoagulation (Ec) of Styrene Butadiene Rubber from Aqueous Solution using different Electrodes

Ghalwa¹

2016

IJNME

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Section: Adsorption Isotherm Freundlich Adsorption Isothermmentioning

confidence: 99%

Electrocoagulation (Ec) of Styrene Butadiene Rubber from Aqueous Solution using different Electrodes

Ghalwa¹

2016

IJNME

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“…2007) and have been extensively used in the literature to model the uptake of various adsorbents (Chandra and Garg, 1992;Das et al, 2002;Ho, 2004;Abdel-Ghani et al, 2010;Malakootian et al, 2011).…”

Section: Adsorption Isotherm Modelingmentioning

confidence: 99%

New chelating resin for preconcentration and determination of molybdenum by inductive couple plasma atomic emission spectroscopy

Kalal

Panahi

Framarzi

et al. 2011

Int. J. Environ. Sci. Technol.

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AB STR ACT:A chelating resin is prepared by condensation polymerization of aniline with formaldehyde and characterized by Fourier transform infrared spectrometer, elemental analysis and thermogravimetric analysis and studied for the preconcentration and determination of trace Molybdate ion from environmental water sample using inductive couple plasma atomic emission spectroscopy. The optimum pH value for sorption of the metal ion was 5. The sorption capacity of functionalized resin is 3.1 mg/g. The chelating sorbent can be reused for 20 cycles of sorptiondesorption without any significant change in sorption capacity. The best desorption of the metal ions from resin was obtained by 0.5 mol/L nitric acid as eluting agent. The profile of molybdenum uptake on this sorbent reflects good accessibility of the chelating sites in the aniline-formaldehyde. Scatchard analysis revealed that the homogeneous binding sites were formed in the polymers. The equilibrium adsorption data of Molybdate ion modified resin were analyzed by five isotherm models such as Langmuir, Freundlich and Temkin. Langmuir isotherm parameters obtained from the four Langmuir linear equations by using linear method. Based on the Langmuir isotherm analysis, the monolayer adsorption capacity was determined to be 4.03 mg/g at 20 ºC. The method was applied for molybdenum ions determination from river water sample.

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“…The determination of this coefficient is significantly hindered due to different forms of flocs as a result of the coagulation process. Sediment structures formed during this process are diverse in terms of their shapes and degree of density [11,12]. Taking the above into consideration, it can be observed that the modelling of this process is extremely difficult.…”

Section: Introductionmentioning

confidence: 99%

Method of floc classification after the coagulation process

Łukasiewicz

Rząsa

2017

E3S Web Conf.

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Abstract. Coagulation is one of the processes of water and wastewater treatment. During this process, flocs are formed and are characterized by different shapes, structures and dimensions. Due to this fact, removing of these particles may produce some problems for researchers because the sedimentation way of this particles is disturbed. In this paper, the method of flocs classification is presented where coefficients k 1 , k 2 and k 3 were calculated. An appropriate value of coefficient k enables the classification of the considered particle to a specific group. The idea of the classification method consists in calculating surface areas for a particle image registered using a microscope. After that, the images are analyzed (computer image processing). The analyzed images will be used for future studies, in which the settling phenomenon will be described.

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Survey efficiency of electrocoagulation on nitrate removal from aqueous solution

Cited by 78 publications

References 35 publications

Electrocoagulation (Ec) of Styrene Butadiene Rubber from Aqueous Solution using different Electrodes

Electrocoagulation (Ec) of Styrene Butadiene Rubber from Aqueous Solution using different Electrodes

New chelating resin for preconcentration and determination of molybdenum by inductive couple plasma atomic emission spectroscopy

Method of floc classification after the coagulation process

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