Can electrocoagulation technology be integrated with wastewater treatment systems to improve treatment efficiency?

AlJaberi, Forat Yasir; Alardhi, Saja Mohsen; Ahmed, Shaymaa A.; Salman, Ali Dawood; Juzsakova, Tatjána; Creţescu, Igor; Cuong, Le Phuoc; Chung, Woojin; Chang, Soon Woong; Nguyen, Dinh Duc

doi:10.1016/j.envres.2022.113890

Cited by 52 publications

(10 citation statements)

References 87 publications

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“…Chemical precipitation [ 13 ], ion exchange [ 14 ], chemical oxidation [ 15 ], reverse osmosis [ 16 ], ultrafiltration [ 17 ], electrodialysis [ 18 ], electrocoagulation [ 19 ] and adsorption [ 20 , 21 ] are a few of the physical and chemical techniques used to remove heavy metals. Adsorption is the most effective strategy out of these because the others have built-in drawbacks including producing a lot of sludge, being inefficient, needing delicate working conditions, and being expensive to dispose of.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review on modelling the adsorption process for heavy metal removal from waste water using artificial neural network technique

Fiyadha¹,

Alardhi²,

Omar³

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

A comprehensive review on modelling the adsorption process for heavy metal removal from waste water using artificial neural network technique

Fiyadha¹,

Alardhi²,

Omar³

et al. 2023

Heliyon

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“…In this method, at the same time as the anode is corroded, electrolyte gases (generally H 2 ) are produced in the cathode, which leads to more flotation [43]. In electrocoagulation, metals such as iron and aluminum are usually used as anodes, which produce hydroxides, oxyhydroxides, and polymeric hydroxides when oxidized [44].…”

Section: Schematic Of the Fenton Processmentioning

confidence: 99%

Petroleum Wastewater Treatment

Beni¹,

Adel²,

Zaeimdar³

et al. 2023

Sustainable Development

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Petroleum hydrocarbons in refinery wastewater are considered the main cause of pollution. Wastewater from oil refineries contains large amounts of oil and fat in the form of suspended particles, light and heavy hydrocarbons, phenol, and other dissolved organic substances, which cause environmental pollution if they are discharged into the environment without treatment. Usually, conventional methods of treating petroleum wastes have a lot of costs; due to the existence of sufficient area for the construction of solar distillation ponds and suitable sunlight, as well as a large number of sunny days near the equator, the solar distillation method can be used. Membrane bioreactors based on biological decomposition and biological transformation of oils and waste oil materials have provided new solutions for the biological treatment of these wastewater. In addition to these methods, Fenton’s advanced oxidation methods, electrochemical coagulation method, and membrane filtration method are mentioned in this chapter.

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“…Many operating factors influence the EC process's performance. The researchers investigated the material of the electrode, interelectrode distance, electrode mood connection, current density, pH, conductivity, electrolysis time, voltage, and speed stirring [26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic (US)-Assisted Electrocoagulation (EC) Process for Oil and Grease (O&G) Removal from Restaurant Wastewater

et al. 2023

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Restaurant wastewater contains a high concentration of O&G, up to 3434 mg/L. This study aims to (a) assess the efficiency of EC combined with US methods for O&G removal in restaurant wastewater, (b) identify the optimum condition for COD degradation using EC treatment via response surface methodology (RSM), and (c) determine the morphological surface of the aluminium (Al) electrode before and after EC treatment. The wastewater samples were collected from the Lembaran cafeteria at the Universiti Sains Malaysia (USM). The efficiency of EC, US, and US-EC, combined methods for O&G removal, was investigated using a batch reactor (pH 7). The interelectrode distance (ID, 2–6 cm), electrolysis time (T, 15–35 min), and current density (CD, 40–80 A/m2) were analysed, followed by RSM. The response variables were O&G (1000 mg/L) and chemical oxygen demand (COD low range, 1000 mg/L). The central composite design (CCD) with a quadratic model was used to appraise the effects and interactions of these parameters. The morphological surface of the electrode used was observed via scanning electron microscopy (SEM). The optimum removal efficiencies obtained were 95.4% (O&G) and 75.9% (COD) (ID: 2.4 cm, T: 30.5 min, and CD: 53.2 A/m2). The regression line fitted the data (R2 O&G: 0.9838, and R2 COD: 0.9558). The SEM images revealed that the use of US was useful in minimising cavitation on the electrode surface, which could lower the EC treatment efficacy. The US-EC combined technique is highly recommended for O&G removal from the food industry’s wastewater.

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Can electrocoagulation technology be integrated with wastewater treatment systems to improve treatment efficiency?

Cited by 52 publications

References 87 publications

A comprehensive review on modelling the adsorption process for heavy metal removal from waste water using artificial neural network technique

A comprehensive review on modelling the adsorption process for heavy metal removal from waste water using artificial neural network technique

Petroleum Wastewater Treatment

Ultrasonic (US)-Assisted Electrocoagulation (EC) Process for Oil and Grease (O&G) Removal from Restaurant Wastewater

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