Treatment of industrial effluents by a continuous system: Electrocoagulation – Activated sludge

Tejocote-Pérez, Moisés; Hernández, Patricia Balderas; Dı́az, Carlos; Roa‐Morales, Gabriela; Natividad, Reyna

doi:10.1016/j.biortech.2010.05.027

Cited by 26 publications

(23 citation statements)

References 25 publications

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“…In addition, the authors were able to harvest hydrogen [127]. Moises et al conducted study to remove color (94%), turbidity (92%), COD (80%) for industrial wastewater at a flow rate of 50 mL/min [128].…”

Section: Combined With Aerobic Anaerobic Processesmentioning

confidence: 99%

Electrocoagulation in Wastewater Treatment

Butler

Hung

Yeh

et al. 2011

Water

217

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Section: Combined With Aerobic Anaerobic Processesmentioning

confidence: 99%

Electrocoagulation in Wastewater Treatment

Butler

Hung

Yeh

et al. 2011

Water

217

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“…At pH < 4 aqueous complex Al(H 2 O) 6 31 is predominant. Between pH 5.2 and 8.8 the solid Al(OH) 3 is prevalent and above pH 9 Al(OH) 4 2 is the predominant and only species present above pH 10 [27][28][29]. Between pH 5.2 and 8.8 the solid Al(OH) 3 is prevalent and above pH 9 Al(OH) 4 2 is the predominant and only species present above pH 10 [27][28][29].…”

Section: Effects Of Initial Phmentioning

confidence: 99%

“…These dissolved anodes produce Al 31 and Fe 21 ions that have been recognized as good coagulants [1,5]. The EC method offers advantages over traditional chemical treatment in that less coagulant is required, less sludge is formed and suitable for installation where the available space is limited [4]. EC where the various degradation and removal mechanisms exist simultaneously is found to be an effective treatment method for the removal of organic and inorganic compounds [6].…”

Section: Introductionmentioning

confidence: 99%

“…The removal of pollutants from effluents by EC has become an attractive method to improve the biodegradability of the wastewater [1][2][3]. EC is a process in which aluminum (Al) or iron (Fe) plates are used as anodes and when a direct current is applied, these anodes are dissolved to produce active coagulant precursors into solution [4]. These dissolved anodes produce Al 31 and Fe 21 ions that have been recognized as good coagulants [1,5].…”

Section: Introductionmentioning

confidence: 99%

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Treatment of transport container washing wastewater by electrocoagulation

Kara

2012

Env Prog and Sustain Energy

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In this study, the effects of operational parameters such as initial pH, current density, and electrolysis time on the treatment of transport container washing wastewater by electrocoagulation (EC) with aluminum (Al) and iron (Fe) electrodes were investigated separately. Chemical oxygen demand (COD), turbidity and color were used to measure the treatment efficiency. Energy consumptions were calculated per cubic meter of wastewater. Amount of sludge produced after EC was also reported per cubic meter of wastewater. Different direct and indirect cost items including energy, sacrificial electrodes, labor, sludge handling and disposal, maintenance, and depreciation costs have been considered in the calculation of the total operating cost, and it was calculated as per cubic meter of wastewater and per kilograms of COD removed. The total operating costs were acquired as 11.2 $m−3 with 79.45% of COD, 99.71% of color, and 99.45% of turbidity removal efficiencies by Fe electrodes and 23.89 $ m−3 with 76.31% of COD, 99.05% of color, and 99.77% of turbidity removal efficiencies by Al electrodes under the optimum parameters in this study. In addition, the optimum operating times were found as 30 min for Fe electrodes and 60 min for Al electrodes. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 249‐256, 2013

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“…This last method is very economic and efficient to improve the water quality. In this aim, different materials have been used to adsorb heavy metals, such as activated sludge [18], synthetic adsorbents [19] [20], biosorbents [21] and clays [22] [23]. The adsorbent materials must be cheap, easy to operate and simple for design.…”

mentioning

confidence: 99%

Copper Adsorption from Wasterwater Using Bone Charcoal

Ghrab¹,

Benzina²,

Lambert

2017

AMPC

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Bone charcoal (BC) is being developed as a treatment for decontamination of polluted water. In this study, bone charcoal was obtained by pyrolysis of cow bones and tested for the elimination of copper from aqueous solutions. The minimum time to reach the removal equilibrium by adsorption was 10 min with a maximum of copper removal equal to 9615 mg/g. Different kinetics models were applied to fit the experimental data: the pseudo second-order model correlated the results with a linear correlation coefficient equal to 1.

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Treatment of industrial effluents by a continuous system: Electrocoagulation – Activated sludge

Cited by 26 publications

References 25 publications

Electrocoagulation in Wastewater Treatment

Electrocoagulation in Wastewater Treatment

Treatment of transport container washing wastewater by electrocoagulation

Copper Adsorption from Wasterwater Using Bone Charcoal

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