Electrocoagulation treatment of industrial tannery wastewater employing a modified rotating cylinder electrode reactor

Villalobos-Lara, A. Daniel; Álvarez, Francisco J.; Gamiño‐Arroyo, Zeferino; Navarro, Ricardo García; Peralta‐Hernández, Juan M.; Fuentes, Rosalba; Pérez, Tzayam

doi:10.1016/j.chemosphere.2020.128491

Cited by 56 publications

(14 citation statements)

References 32 publications

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“…Oil removal of 88 % was reached using the BRT operating parameters of 3 min, 2.14 A/ dm 2 CD, 3 g/L SC, and 1.9 min SOT at the lowest operating cost of 0.65 US$/kg COD. Similar conclusions have been provided by [16,[36][37][38][39][40], and other previous works are briefly listed in Table 1.…”

Section: Ect Systemsupporting

confidence: 88%

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Jasim¹,

AlJaberi²

2022

J. Electrochem. Sci. Eng.

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A huge amount of oily wastewater is discharged annually from several industries like petroleum and petrochemical factories. Scientists and researchers are permanently concentrated on creating conventional technologies or identifying novel treatment options for oily wastewaters, since they need to be treated before being discharged into the soil and aquatic ecosystems. Electrocoagulation technology (ECT) is an electrochemical method employed to remove numerous pollutants from domestic and industrial wastewaters. This paper aims to review the recently published articles from 2018 to 2022 concerned with ECT for oily wastewater remediation. Based on the present review, it is obvious that ECT is strongly dependent on the value of electric current or voltage applied to provide the required amounts of electro-coagulants for efficient remediation, reaction time duration for the generation of electro-coagulants and pollutants elimination, and electrode configuration such as shape, type of metal, and distance between electrodes. Other operating parameters include solution pH (since some pollutants are removed based on their cationic or anionic nature), type of electrolyte which affects the electric conductivity and ohmic drop and stirring speed that may influence the contact among numerous ions throughout the EC reactor. The core findings show that the ECT is highly effective, eco-friendly, and cost-effective in eliminating organic and inorganic pollutants from oily wastewater.

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Section: Ect Systemsupporting

confidence: 88%

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Jasim¹,

AlJaberi²

2022

J. Electrochem. Sci. Eng.

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“…Increasing current or prolonging electrolysis time also induces the formation of OHions owing to the water reduction reaction occurring at the cathode (Equation ( 2)), resulting in the precipitation of amorphous Fe(OH) 3 solid [39]. At slightly alkaline pH, Cr(III) ions are combined with OHions to produce insoluble Cr(OH) 3 in the bulk solution [21,39,40]. Furthermore, two Cr(VI) removal mechanisms were proposed by Heidmann and Calmano [35] depending on the current value for the EC process utilizing iron electrodes.…”

Section: Interaction Of Electrolysis Time and Applied Current On Chro...mentioning

confidence: 99%

Reclamation of forward osmosis reject water containing hexavalent chromium via coupled electrochemical-physical processes

Mousazadeh

Naghdali

Kabdaşlı

et al. 2022

Environmental Technology

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“…Several experiments have been carried out proving that EC is the most suitable method to treat wastewater. These wastewaters consist of dyes (Naje et al 2015;Ya et al 2019); bilge water (Asselin et al 2008a); arsenic (Aswathy et al 2016;Thakur & Mondal 2017;Gilhotra et al 2018;Bian et al 2019); tannery (Deghles & Kurt 2016;Thirugnanasambandham & Sivakumar 2016;Jallouli et al 2020;Villalobos-Lara et al 2021); phenol (Vasudevan 2012); oil (Tir & Moulai-Mostefa 2008;Merma et al 2020); heavy metals (Al-Shannag et al 2015;Al-Qodah & Al-Shannag 2017); humic substances (Ulu et al 2014;Hasani et al 2019), andpharmaceuticals (Dindaşet al 2020). EC is also employed for the treatment of agri-food industry wastewater similar to poultry slaughterhouse effluents containing organic matter.…”

Section: Theoretical Background Of Electrocoagulation Technologymentioning

confidence: 99%

Treatment of poultry slaughterhouse wastewater using electrocoagulation: a review

Ngobeni

Basitere

Thole

2021

Water Practice and Technology

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Poultry slaughterhouses are generally large consumers of fresh water, which is exhausted as wastewater characterized by a high concentration of biological oxygen demand (BOD), chemical oxygen demand COD, and fats, oil, and grease (FOG). Cost-effective methods are required for the treatment of poultry slaughterhouse wastewater, with the aim of attaining a high quality effluent that can be reused in industrial processes to promote sustainability. As compared to conventional treatment methods, electrocoagulation is an efficient and low-cost system. Electrocoagulation is environmentally friendly, treating wastewater without the need of chemicals, thus limiting secondary pollution. The metal anodes initiate electrochemical reactions for coagulation and flocculation. Its distinct advantages include compact installation and simple operation. This paper offers a comprehensive review of recent literature that has been dedicated to utilizing electrocoagulation for poultry slaughterhouse wastewater treatment. This paper also examines aspects such as theory, potential applications, current applications, as well as economical assessment of the technique.

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Electrocoagulation treatment of industrial tannery wastewater employing a modified rotating cylinder electrode reactor

Cited by 56 publications

References 32 publications

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Treatment of oily wastewater by electrocoagulation technology: A general review (2018-2022)

Reclamation of forward osmosis reject water containing hexavalent chromium via coupled electrochemical-physical processes

Treatment of poultry slaughterhouse wastewater using electrocoagulation: a review

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