Removal of arsenic from aqueous solution using electrocoagulation

Balasubramanian, N.; Kojima, Toshinori; Basha, C. Ahmed; Srinivasakannan, C.

doi:10.1016/j.jhazmat.2009.01.081

Cited by 129 publications

(56 citation statements)

References 10 publications

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“…Electrocoagulation is a complex and interdependent process strongly dependent on the chemistry of the aqueous medium [25]. The electrolyte pH plays an important role in the separation of suspended particles; at low pH the separation is dominated by precipitation while adsorption dominates at high electrolyte pH [22].…”

Section: Introductionmentioning

confidence: 99%

Removal of tetracycline by electrocoagulation: Kinetic and isotherm modeling through adsorption

Ouaissa

Chabani

Amrane

et al. 2014

Journal of Environmental Chemical Engineering

106

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The use of antibiotics and growth hormones in human and veterinary medicine has a significant effect on the quality of surface and groundwater. The relevance of an electrocoagulation (EC) process for the removal of an antibiotic selected because of its wide application, high solubility in water, high residual toxicity and an absence of biodegradability, was examined in this study.Metal hydroxides generated during EC were used to remove tetracycline (TC) from aqueous solution. The knowledge regarding the removal mechanism of this substance has not been investigated up to now. Experiments were carried out in a batch electrochemical reactor using aluminum electrodes. The removal of TC was relatively fast and equilibrium was reached within 15 min. The effects of the main operating parameters were examined and showed that irrespective of the initial concentration and for pH ranging from 3 to 10, maximum removal efficiency remained close to 99%; while a sharp decrease was recorded at pH 2 (10 % removal).The results of this study also showed that the removal of TC from water was strongly affected by the current intensity. The mechanism of electrocoagulation was modeled using isotherm models and showed that the Sips isotherm matched satisfactorily experimental data, suggesting monolayer coverage of adsorbed molecules and assumed a quasi-Gaussian distribution energy owing to the high correlation also found for the Toth model. In addition, adsorption kinetic studies showed that the EC process followed a pseudo-second-order kinetic model at the various current densities, pH and initial antibiotic concentrations considered.

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Section: Introductionmentioning

confidence: 99%

Removal of tetracycline by electrocoagulation: Kinetic and isotherm modeling through adsorption

Ouaissa

Chabani

Amrane

et al. 2014

Journal of Environmental Chemical Engineering

106

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show abstract

“…Several advanced techniques exist for the reduction of the environmental impact of industrial wastewater containing heavy metal ions, such as reverse osmosis (Gupta et al 2012), advanced oxidation (Oller et al 2011), ion exchange (Da̧browski et al 2004), solvent extraction (Hall et al 1990), membrane filtration processes (Blöcher et al 2003;Mavrov et al 2006;Paez-Hernandez et al 2005), GAC/O 3 oxidation (Qian (Zhang et al 2012), lime softening (Varga et al 2013), coagulation/flocculation (Amuda et al 2006), electrochemical processes (Ahmad et al 2012), electrocoagulation (Balasubramanian et al 2009;Ratna Kumar et al 2004), chitosan graphene oxide nanocomposites (Shahzad et al 2017) and chemical precipitation (Rathinam et al 2010). These treatment methods have some limitations, which include highenergy requirements, production of oxidation by-products, regeneration requirements during ion exchange, bulk toxic sludge generation in flocculation/coagulation methods, short half-life in ozonation and membrane fouling during the filtration process.…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals from Wastewater using Date Palm as a Biosorbent: A Comparative Review

Shafiq¹,

Alazba²,

Amin³

2018

JSM

107

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“…Such types of adsorbents comprise pine tree leaves 4 , bagasse fly ash 5 , rice husk ash 6 , (Arundo donax) reeds 7 , red mud 8 ,TiO2 nanocomposites 9 agricultural waste and timber industry waste carbons for the exclusion of various dyes from wastewaters 10 . Significant review of low-cost adsorbents for wastewater treatment has been offered by earlier researchers 11 . …”

Section: Introductionmentioning

confidence: 99%

Balance, Isotherms and Kinetics of Reactive Yellow 86commencingsolution Bybalsamodendroncaudatum Wood Waste Activated Nano Permeable Carbon Material

kumar¹,

Vijayalakshmi²,

Rajendran³

2018

RJC

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The adsorption capacity of Balsamodendroncaudatum wood waste virtual to Reactive yellow 86was tested in fabric wastewater organization .Balsamodendroncaudatum wood waste activated nano porous carbon material (BANCM) was treated by sulphuric acid to pick and choose up adsorption competence for the elimination of Reactive yellow 86 ( C.I. No 70865-29-1) from aqueous solution. The treated (BANCM) with sulphuric acid was analyzed bySEM,XRD, FT-IR and TGA-DTA Analysis.Present study deals with the use of BANCMwaste as an adsorbent for the removal of Reactive yellow 86dye from its aqueous solutions.The studies show that sorption is powered by initial dye concentration, dye solution pH and adsorption temperature have been investigated in the present study. Isotherms for the sorption of Reactive yellow 86on (BANCM)were tested by the Freund lich and Langmuir isotherm equations. A Kinetic study of dye followed the pseudo-first-order, pseudo second-order and Elovich models respectively .Equilibrium isotherms for the adsorption of Reactive yellow 86on (BANCM)were analyzed by the Langmuir isotherm. Up shot indicate that the pseudo-first-order kinetic model was found to compare the investigational statistics fit.

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Removal of arsenic from aqueous solution using electrocoagulation

Cited by 129 publications

References 10 publications

Removal of tetracycline by electrocoagulation: Kinetic and isotherm modeling through adsorption

Removal of tetracycline by electrocoagulation: Kinetic and isotherm modeling through adsorption

Removal of Heavy Metals from Wastewater using Date Palm as a Biosorbent: A Comparative Review

Balance, Isotherms and Kinetics of Reactive Yellow 86commencingsolution Bybalsamodendroncaudatum Wood Waste Activated Nano Permeable Carbon Material

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